Measuring instrument for tree diameters. 3x metal components in fitted timber case.EquipmentM.U.Forestry

Vintage marine barometer MK. 1542Equipment

The Theodolite is in its original case for field work.Equipment

Green metal stereoscope in fitted wooden boxEquipmentold delft scanning stereoscope. Patent 542732

This tester was used between 1950 and 1980's. As part of the Occupation, Health and Safety requirements, equipment used to monitor the performance of electricity producing generators, regularly, hand held testers were used to check the insulation and the "earth" pin were up the the required operational levels. As the generators and their ancillary monitoring equipment was spread over a large area and cumbersome to service small hand held devices were required. These had to always be safe for the user to operate. A selected range of high quality meters were recalibrated every two years in the Meter and Calibration Laboratory at Yarraville(near Melbourne) This meter is very significant to The Kiewa Hydro Electricity Scheme because it was an integral part of maintaining the electricity producing water driven generators of the power stations. The reason why this meter was so essential is that provided the safety check on equipment used to monitor each Hydro Generator that they were complying within the grid network parameters. Grid parameters are set so that if there is an electrical fault on the system, that fault can be attended to with a very small change in the output stability of each generator. It is essential that the voltage of the network remain within the set limits. Generators are at Dartmouth, Mackay, Clover, West Kiewa, Yarrawonga, Cain Curran and three Power Stations in the Thornton area.This hand driven current generator produces 500 volts by winding the handle(on funnel curved side) to keep the voltage constant(one minute per test). The whole body is made from caste aluminium. One of the functions of this meter is to test the isolation resistance of any equipment being tested. This is to see if that equipment is safe to handle(no electrical shocks). The second function is to test the earth pin of any portable electrical equipment. The turn key on one side can direct which function is required(marked insulation or continuity). On the top side(enclosed in a glass fronted marked scale) is a continuity scale(top) and an insulation scale(bottom). This is covered , when not in use by "flip up" lid with manufacturer's details and name of the instrument. Opposite the winder are two screw tight knobs. One marked earth(left side) and one marked line(right side). On the top and next to the glass windowed scales in a post manufacture SEC Vic equipment equipment ID number. For carrying purposes there is chromed steel (fold together) handle.The bottom of the unit has two metal "feet" 150mm long by 114mm wideManufacturer's details on top side "MEG" underneath "INSULATION AND CONTINUITY TESTER" below this "constant 500 VOLT pressure" below this "REGISTERED MEG MEGGER TRADE MARK" below this "REG DESIGN NO. 690326" below this "UNITED KINGDOM PATENT Nos. 193746, 197178, 198182, 202062, 202398, 204649, 350715" below this "SUPPLIED BY THE GENERAL ELECTRIC Co. Ltd OF ENGLAND" below this "MAGNET HOUSE, KINGSWAY LONDON W.C.2" 'sec vic kiewa hydro scheme, alternate energy supplies, alpine feasibility studies temperature, rainfall

In 1941, 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. Kelvin Company History: The origins of the company lie in the highly successful and strictly informal 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, an optical instrument maker in Glasgow in 1850 and was involved in supplying and mending apparatus for Thomson university laboratory and working with him on experimental constructions. White was declared bankrupt in August 1861 and released several months later. In 1870, White was largely responsible for equipping William Thomson laboratory in the new University premises at Gilmore hill. From 1876, he was producing accurate compasses for metal ships to Thomson 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 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. G. Falconer Company History: G Falconer (Hong Kong Ltd) appear to have had a retail presence in Hong Kong since 1885, according to the company website, and currently have a shop in the Peninsula Hotel. G Falconer was the Hong Kong selling agent for several British companies. Ross Ltd of 111 New Bond St London was one and the other was Kelvins Nautical Instruments. Falconers were primarily watchmakers, jewellers and diamond merchants.They were also agents for Admiralty Charts, Ross binoculars and telescopes, and sold English Silverware and High Class English Jewellery. In 1928 the company was operating from the Union Building opposite the Hong Kong general post office. It is unclear if the item is an original Sextant made by Kelvin prior to his amalgamation with Henry Hughes & Sons in 1941 as Kelvin appears to have only made compasses up to this date. If the Sextant can be established that it was made by Kelvin then it is very significant and a rare item made for and distributed through their Hong Kong selling agents G Falconer Ltd. There are many Sextants advertised for sale stating "Kelvin & Hughes 1917 model sextant". These can be regarded as replicas as the company was not formed until 1941 and production of marine instruments was not fully under way until after the war in 1947. Further investigation needs to be undertaken to accurately determine the provenance of this item. As the writer currently has the impression that the subject object was possibly made by Kelvin and Hughes in the mid to late 20th century or is a replica made by an unknown maker in the late 1970s. Purchased as an exhibition of marine navigational instruments for the Flagstaff Hill museum. The Sextant is a brass apparatus with filters and telescope lens, and comes with a wooden felt lined storage box. It is a doubly reflecting navigation instrument that measures the angular distance between two visible objects. The primary use of a sextant is to measure the angle between an astronomical object and the horizon for the purposes of celestial navigation.G Falconer and Co. Hong Kong (retailers of nautical equipmentflagstaff hill, warrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, sextant, kelvin & hughes ltd, hong kong, navigational instrument, g falconer, mariner's quadrants

Surveying equipment in fitted timber box. 3 components of solid brass painted dark green. Missing one additional component. Outer fitted and hand tooled leather carrying case.Surveying equipment in fitted timber box. 3 components of solid brass painted dark green. Missing one additional component. Outer fitted and hand tooled leather carrying case.T.005 Ass.No.108B From Norman H.Seward, Optician 459 Bourke St (near Queen St.) Melbourne

Established in 1854 in King Street Melbourne by James Molony, the family owned business of J. Molony initially specialised in shoemaking. Several members of the family were recognised ice hockey and figure skaters who have represented Australia in international winter events including the 1952 Olympic Games in Oslo, Norway and the 1976 Innsbruck Winter Olympics. Molony’s in Elizabeth Street expanded their business with a focus on ski equipment, opening new premises in Falls Creek in 1960 This brochure advertises their available lines for 1964.A 1964 Brochure for J Molony Ski Shop. The brochure is printed in colour and the front bears a caricature of a skier with equipment On front cover: j. molony SKI SHOP 1964 / Established for 110 yearsj molony, molony ski shop, skiing, falls creek, ski fashion, winter, snow, snow fashion, 1964 falls creek

This is a set of five photographs of CAPT James ‘Jim’ Leslie Stedman in the field demonstrating the setup of prisms used as electric distance measurement (EDM) receiver reflectors for tellurometer equipment and the sighting of a large surveyor’s light. This equipment was deployed in establishing mapping and geodetic control operations. The photos were most likely taken in the late 1950s or early 1960s. The tellurometers of this era were man-portable systems that improved geodetic survey efficiencies for rapid network extension and densification replacing triangulation with EDM and theodolite traverse sometimes using Bilby Towers to extend line lengths. Jim Stedman later reached the rank of Colonel, was Director of Military Survey from 1975 to 1978 and was appointed as Colonel Commandant (honorary appointment, Retd) of the Royal Australian Survey Corps from 1978 to 1983. Jim Stedman is demonstrating EDM equipment. See item 6180.16P, photos .14) to .16) for more information and photos of Jim Stedman’s EDM demonstration. This is a set of five photographs of a surveyor in the field demonstrating electric distance measurement (EDM) equipment. c1950s – 1960s. The photographs were printed on photographic paper and are part of the Army Survey Regiment’s Collection. The photographs were scanned at 300 dpi. .1) to .2) - Photo, black & white, c1960s, CAPT Jim Stedman demonstrating the sighting of a large surveyor’s light. .3) to .5) – Photo, black & white, c1960s, CAPT Jim Stedman demonstrating EDM prism equipment. .1P to .5P on back – CAPT Stedman EDM Eqpt.royal australian survey corps, rasvy, army survey regiment, army svy regt, fortuna, asr, surveying

Equipment Strapequipment, ww2, army