Willgodt T. Odhner invented his very successful “pinwheel” four-function calculator mechanism in Russia in 1874, and his invention was cloned by numerous companies, resulting in dozens of similar models that remained in wide use for almost a century. Numbers are dialed into the sliding levers on the top part of the machine, and are added to the register visible in the carriage at the bottom when the large crank is turned. Shifting the carriage sideways allows multiplication through a sequence of addition operations; the two small cranks zero the registers. The design includes ingenious error-preventing interlocks between all the controls: should the operator fail to return a crank to its resting position, the other controls are frozen until this is corrected. A bell indicates calculations in the negative. Used in Ballarat Institute of Advanced Education (B.I.A.E) Physics department.Black, mechanical calculating machine. Metal. Hand-operated, with three hand-cranks. 10x10 rotor with 13 digit result. Ser. No. 29-286781.5 Black symotape on base front: "PHYSICS". Maker's identification on top surface. Supplier's label (metal, silver & blue) on back: "STOTT & HOARE Pty. Ltd. 171 William St. Melbourne C1 M1991". Stamped on rear panel: "MADE IN SWEDEN". Cast lettering on underside: "M-602 07".calculating machine, pinwheel, calculator, scientific instruments, stott & hoare pty ltd, physics, odhner, ballarat institute of advanced education

Used for surveying classes at the Ballarat School of Mines. Purchased/acquired during Queen Victoria's reign. The 1893 Ballarat School of Mines Calendar states that mine surveying instruments "always at the disposal of the students" including "one miner's dial".A surveying instrument consisting of theodolite with single crosshair(.1) mountable on a magnetic compass (.2), designed to sit inside a polished wood carry box. Serial Number 4470On suppliers label: "Instrument maker to the surveying and engineering departments of her Majesty's Government of South Australia"ballarat school of mines, surveying, scientific instruments, scientific objects, otto boettger, optician, miner's dial

Cambridge Instrument Co Ltd, England operated from 1924 to 1967. They were makers of measuring instruments (electrical) and scientific instruments.Timber framed electrical instrument with interior metal conductor. Brass knobs that screw are at one end labelled 1.5 volts and 15 amps. Plates each end labelledscientific instrument, cambridge instruments, electricity, scientific objects, scientific instruments

This item is possibly the sextant donated to the Ballarat School of Mines Museum on 21 October 1885 by D. Turpie of Ballarat.Timber (ebony?) framed sextant with ivory scale, brass radial arm and ivory vernier scale. Mirrors and viewer are set in brass.Maker's label inside the hinged lid.sextant, scientific instrument, d. turpie, navigation, ballarat school of mines museum

Grey metal rectangular box with 3 large dials down centre and 3 terminals at one end Dials show different levels - capacitiesMaker's plate: Techtron - Techtron Appliances - Melbourne - Australia Type: R3D1 Serial: 101resistance control box, terminals, ohms dials, techtron appliances, scientific instruments

The beginning of standardised weights and measures began In Victoria when the Melbourne Observatory received sets of standard weights and measures, which had been tested in Britain against the then British Imperial standards. These included the primary standard yard and pound for the Colony of Victoria. Other standards of weights and measure held by shires and the administrative body's within the colony could then be compared to these primary standards. A Weights and Measures Act was passed in Victoria in 1862, establishing local inspectors throughout the colony. By the 1870s each local council and shire in Victoria held a set of standards that were used to test scales, weights and dry measures used by wholesalers, factories and shops. Every ten years the councils’ standards would themselves need to be rechecked against the Victorian Standards. The checking was done by the Victorian Customs Department in the 19th century, but with the transfer of responsibility for customs to the Federal Government in 1901, weights and measures function was retained by the Victorian Government and was shifted to the Melbourne Observatory. In 1904, a new building was erected at the south end of the Great Melbourne Telescope House, where the standard weights and measures and testing equipment was installed. This room had a large whirling apparatus for testing air meters and became known as the Whirling Room. When the Melbourne Observatory closed in 1944, the Weights and Measures Branch was formed to continue and this branch remained at the Observatory site unit until 1995. J & M Ewan History: J&M Ewan was a Melbourne firm that began by selling retail furniture and wholesale ironmongery. They had substantial warehouses situated at the intersection of 81-83 Elizabeth and Little Collins Streets, the business was established by James M Ewan in 1852. Shortly afterwards he went into partnership with William Kerr Thomson and Samuel Renwick. When Ewan died in 1868 his partners carried on and expanded the business under his name J & M Ewan. The business was expanded to provide a retail shop, counting-house and private offices. Wholesale warehouses adjoined these premises at 4, 6 and 10 Little Collins Street, West. This company provided and sold a large and varied amount of imported goods into the colony that consisted of agriculture equipment, building materials, mining items as well as steam engines, tools of all types and marble fireplaces. They also supplied the Bronze measuring containers in the Flagstaff Hill collection and the probability is that these containers were obtained by the local Melbourne authority that monitored weights and measures in the mid to late 19th century. The company grew to employ over 150 people in Melbourne and opened offices at 27 Lombard St London as well as in New Zealand and Fiji. The company also serviced the Mauritius islands and the pacific area with their steamship the Suva and a brig the Shannon. Robert Bate History: Robert Brettell Bate (1782-1847) was born in Stourbridge, England, one of four sons of Overs Bate, a mercer (a dealer in textile fabrics, especially silks, velvet's, and other fine materials)and banker. Bate moved to London, and in 1813 was noticed for his scientific instrument making ability through the authority of the “Clockmakers Company”. Sometime in the year 1813 it was discovered that one Robert Brettell Bate, regarded as a foreigner in London had opened a premises in the Poultry selling area of London. He was a Mathematical Instrument maker selling sundials and other various instruments of the clock making. In 1824, Bate, in preparation for his work on standards and weights, leased larger premises at 20 and 21 Poultry, London, at a rental of four hundred pounds per annum. It was there that Bate produced quality metrological instruments, which afforded him the recognition as one of one of the finest and principal English metrological instrument-makers of the nineteenth century. English standards at this time were generally in a muddle, with local standards varying from shire to shire. On 17 June 1824, an Act of Parliament was passed making a universal range of weights, measures, and lengths for the United Kingdom, and Bate was given the job of crafting many of the metrological artifacts. He was under instruction from the renown physicist Henry Kater F.R.S. (1777-1835) to make standards and to have them deposited in the principal cities throughout the United Kingdom and colonies. Bate experimented with tin-copper alloys to find the best combination for these items and by October 1824, he had provided Kater with prototypes to test troy and avoirdupois pounds, and samples with which to divide the troy into grams. Bate also cast the standard for the bushel, and by February 1825, had provided all the standards required of him by the Exchequer, Guildhalls of Edinburgh, and Dublin. In 1824, he also made a troy pound standard weight for the United States, which was certified for its accuracy by Kater and deposited with the US Mint in 1827. Kater, in his address to the Royal Society of London, acknowledged Bate's outstanding experimentation and craftsmanship in producing standards of weights, measures, and lengths. An example of a dry Bronze measuring container made specifically for J & M Ewan by possibly the most important makers of measurement artifacts that gives us today a snapshot of how imperial weights and measures were used and how a standard of measurement for merchants was developed in the Australian colonies based on the Imperial British measurement system. The container has social significance as an item retailed by J & M Ewan and used in Victoria by the authorities who were given legal responsibility to ensure that wholesalers and retailers of dry goods sold in Victoria were correct. The container was a legal standard measure so was also used to test merchants containers to ensure that their distribution of dry goods to a customer was correct. Bronze round container with brass two handles used as a legal standard for measuring dry quantities & is a 'peck' measurement. "IMPERIAL STANDARD PECK" engraved around top of container with " VICTORIA" engraved under.flagstaff hill, warrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, standard measure, bronze, peck measurement, j & m ewan, victorian standard dry measurement, bronze container, victorian standards, melbourne observatory, robert bettell bate

The beginning of standardised weights and measures began In Victoria when the Melbourne Observatory received sets of standard weights and measures, which had been tested in Britain against the then British Imperial standards. These included the primary standard yard and pound for the Colony of Victoria. Other standards of weights and measure held by shires and the administrative body's within the colony could then be compared to these primary standards. A Weights and Measures Act was passed in Victoria in 1862, establishing local inspectors throughout the colony. By the 1870s each local council and shire in Victoria held a set of standards that were used to test scales, weights and dry measures used by wholesalers, factories and shops. Every ten years the councils’ standards would themselves need to be rechecked against the Victorian Standards. The checking was done by the Victorian Customs Department in the 19th century, but with the transfer of responsibility for customs to the Federal Government in 1901, weights and measures function was retained by the Victorian Government and was shifted to the Melbourne Observatory. In 1904, a new building was erected at the south end of the Great Melbourne Telescope House, where the standard weights and measures and testing equipment was installed. This room had a large whirling apparatus for testing air meters and became known as the Whirling Room. When the Melbourne Observatory closed in 1944, the Weights and Measures Branch was formed to continue and this branch remained at the Observatory site unit until 1995. J & M Ewan History: J&M Ewan was a Melbourne firm that began by selling retail furniture and wholesale ironmongery. They had substantial warehouses situated at the intersection of 81-83 Elizabeth and Little Collins Streets, the business was established by James M Ewan in 1852. Shortly afterwards he went into partnership with William Kerr Thomson and Samuel Renwick. When Ewan died in 1868 his partners carried on and expanded the business under his name J & M Ewan. The business was expanded to provide a retail shop, counting-house and private offices. Wholesale warehouses adjoined these premises at 4, 6 and 10 Little Collins Street, West. This company provided and sold a large and varied amount of imported goods into the colony that consisted of agriculture equipment, building materials, mining items as well as steam engines, tools of all types and marble fireplaces. They also supplied the Bronze measuring containers in the Flagstaff Hill collection and the probability is that these containers were obtained by the local Melbourne authority that monitored weights and measures in the mid to late 19th century. The company grew to employ over 150 people in Melbourne and opened offices at 27 Lombard St London as well as in New Zealand and Fiji. The company also serviced the Mauritius islands and the pacific area with their steamship the Suva and a brig the Shannon. Robert Bate History: Robert Brettell Bate (1782-1847) was born in Stourbridge, England, one of four sons of Overs Bate, a mercer (a dealer in textile fabrics, especially silks, velvet's, and other fine materials)and banker. Bate moved to London, and in 1813 was noticed for his scientific instrument making ability through the authority of the “Clockmakers Company”. Sometime in the year 1813 it was discovered that one Robert Brettell Bate, regarded as a foreigner in London had opened a premises in the Poultry selling area of London. He was a Mathematical Instrument maker selling sundials and other various instruments of the clock making. In 1824, Bate, in preparation for his work on standards and weights, leased larger premises at 20 and 21 Poultry, London, at a rental of four hundred pounds per annum. It was there that Bate produced quality metrological instruments, which afforded him the recognition as one of one of the finest and principal English metrological instrument-makers of the nineteenth century. English standards at this time were generally in a muddle, with local standards varying from shire to shire. On 17 June 1824, an Act of Parliament was passed making a universal range of weights, measures, and lengths for the United Kingdom, and Bate was given the job of crafting many of the metrological artifacts. He was under instruction from the renown physicist Henry Kater F.R.S. (1777-1835) to make standards and to have them deposited in the principal cities throughout the United Kingdom and colonies. Bate experimented with tin-copper alloys to find the best combination for these items and by October 1824, he had provided Kater with prototypes to test troy and avoirdupois pounds, and samples with which to divide the troy into grams. Bate also cast the standard for the bushel, and by February 1825, had provided all the standards required of him by the Exchequer, Guildhalls of Edinburgh, and Dublin. In 1824, he also made a troy pound standard weight for the United States, which was certified for its accuracy by Kater and deposited with the US Mint in 1827. Kater, in his address to the Royal Society of London, acknowledged Bate's outstanding experimentation and craftsmanship in producing standards of weights, measures, and lengths. An example of a dry Bronze measuring container made specifically for J & M Ewan by possibly the most important makers of measurement artefacts that gives us today a snapshot of how imperial weights and measures were used and how a standard of measurement for merchants was developed in the Australian colonies based on the Imperial British measurement system. The container has social significance as an item retailed by J & M Ewan and used in Victoria by the authorities who were given legal responsibility to ensure that wholesalers and retailers of dry goods sold in Victoria were correct. The container was a legal standard measure so was also used to test merchants containers to ensure that their distribution of dry goods to a customer was correct.Maker Possibly Robert Brettell Blake or De Grave, Short & Co Ltd both of LondonContainer brass round for measuring quantities- Has brass handles & is a 'Bushel' measurement. 'Imperial Standard Bushel Victoria' engraved around container. Container bronze round shape for measuring dry quantities has brass handles & is a 'Bushel' measurement"IMPERIAL STANDARD BUSHEL" engraved around the top of the container. VICTORIA engraved under "J & M Ewan & Co London and Melbourne" engraved around the bottom of the container.flagstaff hill, warrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, standard measure, bushel, bushel measurement, j & m ewan, dry measurement, victorian measurement standard, bronze container, melbourne observatory, robert brettell bate

In 1947, the scientific instrument manufacturing firms of  Henry Hughes & Son Ltd, London, England, and  Kelvin Bottomley & Baird Ltd, Glasgow, Scotland, came together to form Kelvin & Hughes Ltd. Hughes Company History: Henry Hughes & Sons were founded in 1838 in London as a maker of chronographic and scientific instruments. The firm was incorporated as “Henry Hughes & Sons Ltd” in 1903. In 1923, the company produced its first recording echo sounder and in 1935 a controlling interest in the company was acquired by S Smith & Son Ltd resulting in the development and production of marine and aircraft instruments. Following the London office's destruction in the Blitz of 1941, a collaboration was entered into with Kelvin, Bottomley & Baird Ltd resulting in the establishing “Marine Instruments Ltd”. Following the formal amalgamation of Kelvin, Bottomley & Baird Ltd and Henry Hughes & Sons Ltd in 1947 to form Kelvin & Hughes Ltd. Marine Instruments Ltd then acted as regional agents in the UK for Kelvin & Hughes Ltd who were essentially now a part of Smith's Industries Ltd founded in 1944 and the successors of S. Smith & Son Ltd. Kelvin & Hughes Ltd went on to develop various marine radar and echo sounders supplying the Ministry of Transport, and later the Ministry of Defence. The firm was liquidated in 1966 but the name was continued as Kelvin Hughes, a division of the Smiths Group. In 2002, Kelvin Hughes continues to produce and develop marine instruments for commercial and military use. (See Note section this document for further information on the company's origins) This model binnacle and compass is a good example of the commercial diversity of navigational instruments made by Kelvin & Hughes after world war 2. It was made in numbers for use by shipping after the second world war and is not particularly rare or significant for its type. Also, it was made no earlier than 1947 as the firms of Kelvin, Bottomley & Baird Ltd and Henry Hughes & Sons Ltd who took over from Smith & Sons were not amalgamated until 1947. It can there for be assumed that this item was made during the company's transitional period to Kelvin & Hughes from Smith Industries Ltd.Mid 20th century ship's binnacle with Kelvin Hughes/ F. Fuselli Genova 8 inch diameter (glass) compass on gimballed ring. Round, teak wood pedestal with mounted brass compensating sphere brackets and painted iron balls one green the other red. Heavy brass helmet style compass cover with hinged front door and removable top for compass viewing and natural lighting. A single handle is located on the side and single burner on the opposite side. Retains an old finish and some wear to the pedestal base. Binnacle marked Serial No 163 "Veritas" Made by Kelvin Hughes Compass marked "Kelvin Hughes & Made in Great Britain Serial No 760 C J"flagstaff hill, warrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village

Negretti and Zambra 1850-1980s were optical instrument makers and mathematical instrument makers based in London, England. The firm of Negretti and Zambra was established in 1850 by Henry Negretti and Joseph Zambra who had formed a partnership. Their skill was immediately apparent when exhibiting at the 1851 Great Exhibition at Hyde Park, they were the only English instrument makers to receive a prize medal for meteorological instruments, resulting in their appointment as instrument makers to the queen, Greenwich observatory, and the British Meteorological Society. In 1853, when the Crystal Palace was re-erected in Sydenham, Negretti and Zambra became the official photographers of the Crystal Palace Company, which allowed them to photograph the interior and grounds of the new building. The firm made use of this access to produce a number of stereographs. Between 1855 and 1857 Negretti and Zambra commissioned photographer Pierre Rossier to travel to China to document the Second Opium War. Although Rossier subsequently was unable to accompany to Anglo-French forces in that campaign, he nevertheless produced a number of stereographs and other photographs of China, Japan, the Philippines and Siam (now Thailand), which Negretti and Zambra published and that represented the first commercial photographs of those countries. In 1856 Negretti and Zambra sponsored a photographic expedition to Egypt, Nubia and Ethiopia conducted by Francis Firth. In 1864 Negretti and Zambra (themselves) photographed Shakespeare's House at Stratford on Avon. A sepia photograph was then pasted onto card 4" × 2.5". This was then presented to visitors to the Crystal Palace to enable them to compare it with the model erected by Mr E. T. Parr in the Centre Transept. The card itself is headed "Crystal Palace April 23rd 1864." That year they also published a book, titled A Treatise on Meteorological Instruments, (which was reprinted in 1995). Throughout World War One Negretti and Zambra were entirely engaged in the production of various instruments for the Ministry of Munitions. They developed many instruments for the Air Ministry including a mercury-in-steel distance thermometer for taking the oil and air temperatures in aircraft which was patented in 1920. In 1946 the company went private and in 1948 the company was made public, and by 1950 Negretti and Zambra had 821 employees in Britain. In order to increase production and to safeguard future development in 1964, they purchased a modern factory at Aylesbury for all their production. In 1981 Negretti and Zambra were taken over by a group of financial institutions in the form of Western Scientific Instruments and in 1985 the company was acquired by Meggitt Holdings.The subject compass is just one type of the many marine and scientific, optical items this company produced over it’s life time. Negretti and Zambra were prolific manufactures of types of items as well as being very prominent in photography pioneering new innervation's and sponsoring expeditions to little known countries to document peoples daily lives and culture through photography.Azimuth compass on tripod in a fitted wooden box with a round spirit level included, lid of box has three indented circles where the legs of the compass fit when it is set up for use. Stamped "C.M.O. 9" on with Maker Negretti & Zambra London.flagstaff hill, warrnambool, flagstaff-hill, flagstaff-hill-maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, azimuth compass, nautical instrument, negretti & zambra london, navigational instrument, compass

This Sike’s Hydrometer was donated by the Port Fairy Customs Office as it was no longer required by them due to a change in the law. The hydrometer was part of a system for Ullaging or calculating the amount of liquid remaining in a container of liquor such as a barrel, and the amount of alcoholic content in the contents. It can also measure the free space or head space remaining. Hydrometers were used to measure the density, or relative density, of liquids from the late 1600s. In 1816 Bartholomew Sikes won the competition for the most useful accurate hydrometer. Hydrometers were commonly used by distillers, vintners, and brewers to establish accurate measures of alcohol concentration in their beverages. Following this manufacturing process, government inspectors and excise officers used them to check that the labelled indications of alcohol-proof were correct and that the right amounts of duty were being paid.The Sikes hydrometer is of local significance because of its association with the Government's Customs Office in Port Fairy, in the southwest region of Victoria. It is also associated with Bartholomew Sikes, whose design of a hydrometer was chosen in 1816 as being the most useful and accurate hydrometer. The hydrometer has evolved into the digital version available today to measure density of liquids.Sikes Hydrometer and thermometer in a fitted wooden case with crimson lining inside the lid and dark lining in the base. The case has ten vertical pegs to secure the weights. The brass hydrometer has a spherical float and eight thick brass horseshoe-shaped weights. The serial number is on each section of the float and all weights. Both sides of the float’s upper flat stem have a scale from 0-10, with five divisions between each number. The eight weights are numbered from 20 – 90 in increments of 10. The set includes a mercury thermometer mounted on an ivory back plate labelled with Fahrenheit and Centigrade Scales. The Sikes hydrometer set was made by Loftus of London. The hydrometer model is IID 510, Serial Number is 14674, calibrated by Longs, London. All parts of the float and eight weights are inscribed with Serial Number “14674” The float stem is stamped "SIKE'S IID 51o” Calibrator, "LONG LITTLE TOWER ST LONDON" The weights are numbered individually ”20”, “30”, “40”, “50”, “60”, “70”, “80” or “90” Each weight in inscribed; symbol “(J L) [inside an ova, with textured background]” The thermometer inscribed: “LOFTUS OF LONDON”flagstaff hill, warrnambool, shipwrecked coast, flagstaff hill maritime museum, maritime museum, shipwreck coast, flagstaff hill maritime village, great ocean road, measuring instruments, customs tax, weighing instrument, sike’s hydrometer, calibrator long of london, loftus of london instrument maker, loftus, j long, sikes hydrometer, scientific instrument, pressure measurement, measuring instrument, ullage tool, customs, excise duty, tax, alcohol content, proof, calibrate, standard weights and measures, tariff, scientific instrument makers, specific gravity, liquid density, alcohol testing, technology, alcohol measurement, proof spirit, wine and spirits merchants, local business, brass measuring instrument, port fairy, customs office, port fairy customs, joseph long, instrument maker

Kelvin Company History: The origins of the company lie in the highly successful, if strictly informal, the relationship between William Thomson (1824-1907), Professor of Natural Philosophy at Glasgow University from 1846-1899 and James White, a Glasgow optical maker. James White (1824-1884) founded the firm of James White, who was an optical instrument maker in Glasgow in 1850. He was involved in supplying and mending apparatus for Thomson's university laboratory and working with him on experimental constructions. White was actually declared bankrupt in August 1861 and released several months later. In 1870, White was largely responsible for equipping William Thomson's laboratory in the new University premises at Gilmore hill. From 1876, he was producing accurate compasses for metal ships to Thomson's design during this period and this became an important part of his business in the last years of his life. He was also involved in the production of sophisticated sounding machinery that Thomson had designed to address problems encountered laying cables at sea, helping to make possible the first transatlantic cable connection. At the same time, he continued to make a whole range of more conventional instruments such as telescopes, microscopes and surveying equipment. White's association with Thomson continued until he died. After his death, his business continued under the same name, being administered by Matthew Edwards (until 1891 when he left to set up his own company). Thomson, who became Sir William Thomson and then Baron Kelvin of Largs in 1892, continued to maintain his interest in the business after James White's death in 1884, raising most of the capital needed to construct and equip new workshops in Cambridge Street, Glasgow. At these premises, the company continued to make the compass Thomson had designed during the 1870s and to supply it in some quantity, especially to the Admiralty. At the same time, the firm became increasingly involved in the design, production and sale of electrical apparatus. In 1899, Lord Kelvin resigned from his University chair and became, in 1900, a director in the newly formed limited liability company Kelvin & James White Ltd which had acquired the business of James White. At the same time Kelvin's nephew, James Thomson Bottomley (1845-1926), joined the firm. In 1904, a London branch office was opened which by 1915 had become known as Kelvin, White & Hutton Ltd . Kelvin & James White Ltd underwent a further change of name in 1913, becoming Kelvin Bottomley & Baird Ltd . Hughes Company History: Henry Hughes & Sons was founded in 1838 in London as a maker of chronographic and scientific instruments. The firm was incorporated as Henry Hughes & Sons Ltd in 1903. In 1923, the company produced its first recording echo sounder and in 1935, a controlling interest in the company was acquired by S Smith & Son Ltd resulting in the development and production of marine and aircraft instruments. Following the London office's destruction in the Blitz of 1941, a collaboration was entered into with Kelvin, Bottomley & Baird Ltd resulting in the establishing Marine Instruments Ltd. Following the formal amalgamation of Kelvin, Bottomley & Baird Ltd and Henry Hughes & Sons Ltd in 1947 to form Kelvin & Hughes Ltd., Marine Instruments Ltd then acted as regional agents in the UK for Kelvin & Hughes Ltd who were essentially now a part of Smith's Industries Ltd founded in 1944 and the successors of S Smith & Son Ltd. Kelvin & Hughes Ltd went on to develop various marine radar and echo sounders supplying the Ministry of Transport, and later the Ministry of Defence. The firm was liquidated in 1966 but the name was continued as Kelvin Hughes, a division of the Smiths Group. In 2002, Kelvin Hughes continues to produce and develop marine instruments for commercial and military use. This model compass is a good example of the commercial type of instruments made by Kelvin & Hughes after the world war 2, it was made in numbers for use on various types of shipping after the second world war and is not particularly rare or significant for it's type. Also it was made no earlier than 1947 as the firms of Kelvin, Bottomley & Baird Ltd and Henry Hughes & Sons Ltd who took over from Smith & Sons were not amalgamated until 1947. Given that Smith and Sons is engraved on the compass with Kelvin & Hughes it can be assumed that this compass was made during the company's transitional period to Kelvin & Hughes.Compass, marine or ship's card compass, gimble mounted, with inscriptions. Type is Lord Kelvin 10 inch compass card. Made in Great Britain by Kelvin Hughes Division of S. Smith & Sons (England) Ltd. "LORD KELVIN 10.", "COMPASS GRID", "MANUFACTURED IN GREAT BRITAIN BY", "KELVIN HUGHES DIVISION", "S. Smith & Sons (England) Ltd".flagstaff hill, warrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, marine compass, gimble compass, ship's compass, lord kelvin compass, smith and sons england ltd, henry hughes & son ltd london england, kelvin bottomley & baird ltd glasgow scotland, kelvin & hughes ltd, navigation instrument, scientific instrument, william thomson, james white, baron kelvin of largs

Solid wood 3 sided brown box with removable lid sitting on 4 circular shaped feet. Open front has dial and connectors. Inside is cylindrical coilMaker's plate: "AMSCO - ALLOCATING CONDENSER - S.T.L." Made in U.S.A. PAT'D 6-10-29 Other PAT'S PENDING CAP. 00035 MFDwireless, radio, scientific instruments, coil and tuner, condenser

Probably used for surveying courses at the Ballarat School of Mines Boxed telescopic sight with longitudu=inal bubble level and a quadrant draduated in +- 40 in 100 22mm diameter. Female screw thread base. Push-Pull focussing. Housed in an hinged timber box.drainage level, scientific intstruments, ballarat school of mines, scientific instruments

DEFINITION microfarad Posted by: Margaret Rouse WhatIs.com Contributor(s): Kenda, Jack Clements The microfarad (symbolized µF) is a unit of capacitance, equivalent to 0.000001 (10 to the -6th power) farad. The microfarad is a moderate unit of capacitance. In utility alternating-current (AC) and audio-frequency (AF) circuits, capacitors with values on the order of 1 µF or more are common. At radio frequencies (RF), a smaller unit, the picofarad (pF), is often used. This unit is equal to .000000000001 (10^-12) µF. In RF scenarios, capacitances range from about 1 pF to 1,000 pF in tuned circuits, and from about 0.001 µF to 0.1 µF for blocking and bypassing. At audio frequencies (AF), capacitances range from about 0.1 µF to 100 µF. In power-supply filters, capacitances can be as high as 10,000 µF. Capacitor, 1/3 M.F.D. (microfarad) within wooden insulating box. Two terminal posts set in an insulating box. Maker's name and place 1/3 M.F.D No. 34402scientific instrument, capacitor, electrical engineering, laboratory

Most were used in various capacities at Ballarat School of Mines or University of Ballarat.Assorted lamps including Edison Carbon filament light bulbs and other special purpose lamps, .1-3) Robertson, pear shaped 220 V 16, carbon filament? bayonet light bulb with 'nipple'. .4) Ediswan, standard shaped, 928, carbon filament? bayonet light bulb with 'nipple'. .5) (B in a circle) 280 V 32 oo1A, pear shaped, carbon filament? bayonet light bulb with 'nipple'. .6-7) Crompton? standard shaped, carbon filament? bayonet light bulb. Clear glass with an amber tint. .8) 230-240 V 40 W, pear shaped, wire filament bayonet light bulb. .9-10) Osram standard shaped, heavy spiral and disc electrodes, bayonet light bulb. (The disc is loose in 10) .11 a&b) Osram black glass, large standard shaped, 230-240 V 125 W, bayonet light bulb. .12) Philips tubular shaped projector lamp with instruction leaflet. .13) Philips tubular shaped projector lamp with instruction leaflet in original box. .14) EH JA 12 V 55 W small projector lamp. .15) Large special purpose, standard shaped, frosted bayonet light bulb. .16) Siemens, standard shaped, modern Edison screw light bulb. .17) Philips, standard shaped, modern Edison screw, frosted light bulb. .18) Crompton, gas filled 240 V 75 W, standard shaped, bayonet frosted light bulb in original box. .19) Crompton, gas filled 230 V 300 W. standard shaped, large modern Edison screw light bulb. .20) Probably an extension cord with a bayonet fitting at one end connected by a twisted cord of two fabric covered wires to a large socket. This socket has a copper Edison screw inner, surrounded by a ceramic tube and covered with a copper housing. The housing is cracked in two places.Some have makers brand and voltage and wattage stamped onto the glass.scientific instrument, ballarat school of mines, globes, edison, lamps, light bulbs, bayonet

A.C. Voltmeter, 150-600 volts non liner, semicircular scale ventilation holes. One termnal post on each side panel. Maker's name plate on top face below scale windo. Adjacent: spring-loaded contact button. Model 155. Serial Number 42339scientific instrument, ballarat school of mines, weston electrical instrument co

Item looks to have been adapted for bench top use Sindanyo high temperature insulation boards are manufactured from cement based products, reinforced with selected fibres. They have been specifically designed to provide excellent service under demanding thermal and electrical applications. Sindanyo is a non-asbestos, non-combustible product that is easily machined. This insulation board is a popular option when a high quality, strong and rigid material is required.400/500 Volt, 5 amp, 50 Hz 3-phase balanced load. Circular scale with lead and lag markings and graduations. The 22cm diameter meter rear-mounted to black sindanyo board, supported by wood brackets on wood base. Five terminal posts on panel below meter. Wire connections at rear. No maker's name Patent Number: 162471/20 Serial Number 263475scientific instruments, power factor maker, lead and lag markings, terminal posts, power factor meter, wire connections, sindanyo board, non-combustible, insulation, electrical applications

Opera Glasses came into existence as a result of a long line of inventions, and further improvements upon those inventions. The process started in the year 1608 when a Dutch optician by the name of Hans Lipperhey developed the first pair of binoculars with a magnification capability of X3. Less than a year later, a well-known inventor and philosopher by the name of Galileo developed what became known as the Galilean telescope. Advertisements were first found for opera glasses and theatre binoculars in London as early as 1730 in the form of a long collapsible telescope. The "Opera Glass" as it was referred to; was often covered in enamel, gems, ivory, or other art and paintings. For almost 100 years opera glasses existed merely as telescopes. In Vienna, in 1823 the first binocular opera glasses and theatre binoculars began to appear. They were two simple Galilean telescopes with a bridge in the centre, each telescope focused independently from the other by extending or shortening the telescope until the desired focus was achieved, which was useful, yet very cumbersome. Two years later in Paris, Pierre Lemiere improved on this design and created a centre focus wheel. This allowed the focusing of both telescopes together. After this development, opera glasses and theatre binoculars grew in popularity because of the superior view they facilitated in opera and theatre houses. The beautiful design of the glasses themselves also added appeal to the opera-going crowd. By the 1850's opera glasses and theatre, glasses had become a must-have fashion accessory for all opera and theatregoers. A vintage pair of 1920s opera glasses probably made in France by an unknown maker the item is significant due to it's provenance that can be traced and it's completeness as a useful social item and fashion accessory used by theatergoers from the mid 19th century and well into the 20th century. Some people still use modern variants of theater glasses today to improve their enjoyment of the theater.Both glasses and case are covered with black and white snake skin. Case lined with purple velvet, and has brass closure clip.Noneflagstaff hill, warrnambool, shipwrecked coast, flagstaff hill maritime museum, maritime museum, flagstaff hill maritime village, great ocean road, opera glasses, serpentine opera glasses, binoculars, accessories, optical instrument, scientific instrument, theater glasses, french opera glasses, hans lipperhey

The theodolite is used in surveying and measures vertical and horizontal angles. Placed on a tripod, it is used to find angles in road building, tunnel alignment and other civil-engineering work. The theodolite was used at Ballarat School of Mines in the surveying course. It is possible that this instrument was imported by Flavelle Bros & Co having been made to their order by a European instrument makerTheodolite (without a matching tripod) with four leveling screws at the base. Telescope not fully rotatable, ends can be interchanged. Underslung levelling bubbletheodolite, surveying, european instrument, importers, ballarat school of mines, flavelle bros & co, measuring angles, road building, civil engineering

Used in the Electrical Department at the University of Ballarat, VictoriaBlack metal lampMaker's metal label. Hand written "NIEDERVOLT LAMPE" on baseniedervolt lampe, scientific instruments, low voltage, electrical, engineering, phillips globe, lamp, 5 volt globe, carl reichert, optische werke c. reichert

Used at the Ballarat School of MinesTwo beam balance with a 17cm arm, in a timber and glass case. The balance is made by Oertling specially for H.B. Selby and Co. Ltd. On the base of a drawer is the maker and date - possible John Wright 27/5/20. He was their most prolific maker. Serial number 16903 on left side of base. balance, scientific instrument, oertling

The photronic cell used in electrical experiments to demonstrate control of currents and lighting.Black bakelite circular case with two socket pins. Circular open top with tiny copper pins around the edge. Box Black and whiteName of maker and item: WESTON PHOTRONIC CELL MODEL 594 PAT PEND NEWARK N J U S Aweston, photronic cell, socket pins, copper pins, bakelite, experimental, electrical currents, lighting

This is the Bridge Section of a ship’s telegraph and is a Duplex Gong model, made by Chadburn & Son of Liverpool. This duplex gong model would sound two signals whenever the navigational commands were given by the ship’s pilot to change the speed or direction. The ship’s telegraph was installed on Flagstaff Hill’s exhibit of the 1909 Hobart, Tasmania, ferry “SS Rowitta” installed in 1975 and enjoyed for more than 40 years. Communication between the ship’s pilot and the engine room in the late 19th century to the mid-20th-century was made with a system called an Engine Order Telegraph (E.O.T.) or ship’s telegraph. The equipment has two parts, the Bridge Section and the Engine Room Section. The Bridge Section is usually mounted onto a pedestal, and the Engine Room Section is attached to a vertical surface. The standard marine commands are printed or stamped around the face of the dial and indicated by a pointer or arrow that is usually moved by a rotating brass section or handle. The ship’s pilot stationed on the Bridge of a vessel sends his Orders for speed and direction to the Engine Room with the E.O.T. He moves the lever or levers, depending on the number of engines the ship has, to change the indicator on the Bridge Section’s dial to point in the new direction and speed of travel. This change causes the Orders to be duplicated on the Engine Room Section’s dial and a bell or bells to signal the change at the same time. The engineer then adjusts the ship’s engines and steering equipment to follow the pilot’s Order. CHADBURN & SON, Liverpool- Chadburn Brothers, William and C.H., were joint inventors and well-established makers of optical and scientific instruments and marine gauges. The firm was granted the Prince Albert Royal Warrant in the late 19th century. In 1870 William Chadburn applied for a patent for his navigational communication device for use on ships. By 1875 Chadburn & Son was producing the brass Engine Order Telegraph in its plant at 71 Lord Street, Liverpool. In 1911 the ship RMS Titanic was launched, fitted with Chadburn & Sons E.O.T. The Chadburn Ship Telegraph Company Limited was registered in 1898 to take over Chadburn & Sons. In 1903 a large factory at Bootle, near Liverpool, and their products were being sold overseas. In 1920 electric-powered telegraphs were developed. In 1944 the name changed to Chadburn’s (Liverpool) Limited. In 1968 the company became Chadburn Bloctube Ltd. In 2000 the company, now Bloctube Marine Limited, was still manufacturing ship telegraphs. SS ROWITTA: - The 1909 steam ferry, SS Rowitta, was installed as an exhibit at Flagstaff Hill in 1975 and was enjoyed by many visitors for 40 years. Rowitta was a timber steam ferry built in Hobart in 1909 using planks of Huon and Karri wood. It was a favourite of sightseeing passengers along Tasmania’s Tamar and Derwent rivers for 30 years. Rowitta was also known as Tarkarri and Sorrento and had worked as a coastal trading vessel between Devonport and Melbourne, and Melbourne Queenscliff and Sorrento. In 1974 Rowitta was purchased by Flagstaff Hilt to convert into a representation of the Speculant, a historic and locally significant sailing ship listed on the Victorian Heritage Database. (The Speculant was built in Scotland in 1895 and traded timber between the United Kingdom and Russia. Warrnambool’s P J McGennan & Co. then bought the vessel to trade pine timber from New Zealand to Victorian ports and cargo to Melbourne. It was the largest ship registered with Warrnambool as her home port, playing a key role in the early 1900s in the Port of Warrnambool. In 1911, on her way to Melbourne, it was wrecked near Cape Otway. None of the nine crew lost their lives.) The promised funds for converting Rowitta into the Speculant were no longer available, so it was restored back to its original configuration. The vessel represented the importance of coastal traders to transport, trade and communication in Australia times before rail and motor vehicles. Sadly, in 2015 the time had come to demolish the Rowitta due to her excessive deterioration and the high cost of ongoing repairs. The vessel had given over 100 years of service and pleasure to those who knew her. This Bridge section of a ship’s Engine Order Telegraph, used with an Engine Room section, represents late-19th century change and progress in communication and navigation at sea. This type of equipment was still in use in the mid-20th century. The object is significant for its association with its maker, Chadburn & Son, of Liverpool, a well-known marine instrument maker whose work was recognised by English Royalty, and whose products were selected to supply similar equipment for use on the RMS Titanic. This ship’s telegraph is connected to the history of the Rowitta, which was a large exhibit on display at Flagstaff Hill Maritime Village from the museum’s early beginnings until the vessel’s end of life 40 years later. The display was used as an aid to maritime education. The Rowitta represents the importance of coastal traders to transport, trade and communication along the coast of Victoria, between states, and in Australia before rail and motor vehicles. The vessel was an example of a ferry built in the early 20th century that served many different roles over its lifetime of over 100 years. Bridge section of a Ship’s Telegraph or Engine Order Telegraph (E.O.T.). The round double-sided, painted glass dial is contained within a brass case behind glass. It is fitted onto an outward tapering brass pedestal with a round base. The brass indicator arrows between the handles point simultaneously to both sides of the dial when moved. An oval brass maker’s plate is attached to the top of the case. The dial’s faces have inscriptions that indicate speed and direction, and the front face and plate include the maker’s details. A serial number is stamped on the collar where the dial is fitted to the pedestal. The ship’s telegraph is a Duplex Gong model, made by Chadburn & Son of Liverpool. Dial, maker’s details: “PATENT “DUPLEX GONG” TELEGRAPH / CHADBURN & SON / TELEGRAPH WORKS / PATENTEES & MANUFACTURERS / 11 WATERLOO ROAD / LIVERPOOL” LONDON / 105 FENCHURCH STREET” “NEWCASTLE / 85 QUAY + SIDE” “GLASGOW / 69 ANDERSON QUAY” “PATENT” Dial instructions: “FULL / HALF/ SLOW / FINISHED WITH ENGINES / STOP STAND BY / SLOW / HALF / FULL / ASTERN / AHEAD” Maker’s plate: “CHADBURN / & SON / PATENT / LIVERPOOL” Serial number: “22073”flagstaff hill, warrnambool, maritime village, maritime museum, shipwreck coast, great ocean road, engine order telegraph, e.o.t., navigational instrument, communication device, ship’s telegraph, engine room section, bridge section, rms titanic, chadburn & son, chadburn brothers, william chadburn, chadburn ship telegraph company, chadburns, duplex gong, liverpool, ss rowitta, navigation, marine technology, pilot’s orders, steam power, hobart, tasmania, devonport, tasmanian-built, ferry, steam ferry, steamer, 1909, early 20th century vessel, passenger vessel, tamar trading company, launceston, george town, sorrento, tarkarri, speculant, peter mcgennan, p j mcgennan & co. port phillip ferries pty ltd, melbourne, coastal trader, timber steamer, huon, karri, freighter, supply ship, charter ferry, floating restaurant, prawn boat, lakes entrance

8697.1 - Small wooden box with a metal latch used to house the small weights. 8697.2 - Brass weight. 8697.3 - Brass weight. 8697.4 - Brass weight. 8697.5 - Brass weight. 8697.6 - Brass weight. 8697.7 - Brass weight. 8697.8 - Brass weight.8697.1 - NAG BROWN MAKERS - Melbourne - Scientific instruments - Fine weighing machines

Stick mercury barometer, named after Admiral Robert Fitzroy of the Royal Navy (1805 - 1865) for his detailed instructions on interpreting the weather that are included with the instrument. Fitzroy was the captain of the Beagle, a weather forecaster to Charles Darwin and the second Governor of New Zealand. He developed many different types of barometers and was the first person to introduce the science of weather forecasting to the British Isles. A local manufacturer of scientific instruments, Thomas Gaunt, produced the barometer and it was adapted for the southern hemisphere by Robert Ellery, the State Astronomer based at the Melbourne Observatory. Described as "Gaunt's Fitzroy Barometers" in the original sale catalogue, it was priced from 25/- to ₤9.9s. [See Miller, M., Gaunt’s Time, 2014]. Thomas Gaunt's business was originally located at 14 Bourke Street East from 1858. In 1869-1870 he moved to new premises in the Royal Arcade, Collins Street. Gaunt's business became an institution in Victorian Melbourne and Gaunt its leading clock maker. PROVENANCE According to official minutes the barometer was purchased by the Melbourne Athenaeum in 1874. In particular, at the March meeting of the General Committee the House Subcommittee was instructed to "obtain a Fitzroy or other reliable barometer" to be "fixed in the Reading Room". The 1874 Annual Report records the purchase at ₤3.10.0. The barometer is historically significant as an example of the work of Melbourne’s leading scientific instrument maker, Thomas Gaunt. The barometer has social significance as an example of the type of accoutrements provided by the committee of the Melbourne Athenaeum for the comfort of its members. Further social significance lies in the fact that Robert Ellery, the Government Astronomer, who designed the local version of the barometer, has a direct connection with the Athenaeum being a subscription member and committee member of the Athenaeum during the 1870s. There are also records of a T Gaunt as a subscription member of the Athenaeum during the 1870s and 1880s which may be Thomas Gaunt, however, this is yet to be verified. Stick mercury barometer known as the Admiral Fitzroy Barometer. It comprises an oblong wooden case with glass front panel, ornate pediment, barometer with bulb cistern (empty of fluid),printed instructions for interpreting information given by the gauge affixed to left and right face of instrument. Includes a thermometer. The barometer appears to be intact except for the turning knobs which are missing and the mercury in the tube which is not present. Whether the instrument could be restored to working order is unknown. Front right panel, metal plaque: "Thos Gaunt, Barometer Maker, Royal Arcade, Melbourne"melbourne athenaeum, barometer, thermometer, admiral fitzroy, thomas gaunt of melbourne, robert ellery

Donated by founder, Mother Gonzaga Barry's, brother, John Barry, to Loreto's Ballarat school, Mary's Mount, in 1887. Brought back by Mother Gonzaga on her return from Europe in 1887. Maintained by Captain Henry Evans Baker, Superintendent of the Oddie Observatory, Mount Pleasant Ballarat, who subsequently made the students a telescope. Used in the curriculum for the study of astronomy.Connection with founder of Loreto in Australia and her family. Evidence of early curriculum. Rare artefact.A clockwork scientific instrument modelling the solar system.Paterson & Son Maker Liverpoolorrery, astronomy, science

Cylindrical and galvanometer made of green-gray enameled metal on a round base.Plaque on top of cylinder: 'DIRECT CURRENT GALVANOMETER / COIL RESISTANCE 20 OHMS / CRITICAL RESIST 120 OHMS / SENSITIVITY 200 m.m/μα / Instrument No. 1023 / J. L WILLIAM'j l william, scientific instruments, galvanometer, direct current galvanometer, australian instrument makers, ammeters

This microscope belonged to James William Manifold Aitkin (1835-1905) who was born in Tasmania and came to Warrnambool in 1852. He was a shopkeeper, produce merchant and flour miller who came to live at the property of Carracoorte, Grasmere in the late 1880s. He was a member of the Warrnambool Municipal Council from 1861 to 1868 and was Chairman of the Borough in 1863 when Warrnambool was declared a town and an early Mayor. The microscope was an improved model of a design by Benjamin Martin, an 18th century instrument maker considered one of the greatest designers and manufacturer of microscopes of his time. This microscope is of great significance because: 1. It is a beautiful object with high antiquarian and scientific interest 2. It has strong local significance as it belonged to James William Manifold Aitkin, a prominent Warrnambool and district businessman and farmer 3. It has social significance as it demonstrates the interest in natural history by the more affluent and educated men of the time. This microscope is in a polished wooden box with a metal lock (no key). The microscope is an English Martin Improved drum microscope (c. 1850) and made of brass. Inside the box there are two divisions, one to house the microscope. The other has a drawer containing six slide samples made of ivory or bone and five glass slides (with the listed material missing) and five other small items. On top of the drawer is a section for the microscope attachments contained in ten small inserts. The ten attachments are made of brass. There are also six items not in any particular inserts. There are two small slots for the pincers and slides etc. The only writings are the names and information on the slidesjames aitkin, microscope, benjamin martin, benjamin martin microscope, warrnambool