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

This item was used at the Ballarat School of Mines. Francis Abbott was a watchmaker from Manchester. He arrived in Tasmania as a convict in 1845, and was granted a ticket of leave in 1849. He died in 1883.A theodolite in a timber boxEngraved Abbott Hobart Town Varley Londontheodolite, scientific instruments, francis abbott, abbott hobart town, varley london, convict

According to Max Clarke this item was used by the surveying classes at the Ballarat School of MinesA boxed (timber) theodolite with crossbars and full-length stadia wires. The theodolite can be mounted on a metal straightedge base. The box also contains a magnetic compass with two bubble levels, a plumbing folk, and 4 brass paper clips designed to suit a plan table. On box in black paint "A 1". Inside box lid is manufacturer's label and Stadia measurement zero reference calibration.ballarat school of mines, surveying equipment, gurley, max clarke, theodolite, stadia measurement, calibration, scientific instrument

Theodolite with internal focussing. One plate bubble level. Three levelling screws. Engraved. "Crosshair" and stodia lines. Aladide levelling bubble with top mirror. Fully rotatable telescope with gunsight. Fits tripod Catalogue Number 4107.scientific instruments, theodolite, e.r. watts & son ltd

Brass theodolitethodolite, scientific instruments

Theodolites have been used to measure horizontal and vertical angles by surveyors since the 1500s. A theodolite is a precision instrument for measuring angles in the horizontal and vertical planes. Theodolites are used mainly for surveying applications, and have been adapted for specialized purposes in fields like meteorology and rocket launch technology. Theodolites, such as this one, were instrumental to early surveyors, and would have played a significant part in their everyday work. The plumb bob was used to set the instrument exactly over a fixed survey marker.This theodolite was made by Troughton and Simms, who were significant scientific instrument makers of the 19th century and early 20th century. In 1782 John Troughton purchased Benjamin Cole's shop in Fleet Street, London enabling him to sell his own signed products. His instrument making business supported several dynasties of Troughtons before becoming Troughton and Simms and later still Cooke Troughton & Simms. This firm was one of the most well respected firms of instrument makers of the 1800s. A grey metal theodolite - probably made of brass. It has movable parts and there is a weight ( a plumb bob) attached with string.Cooke Troughton & Simms Yorke England V012318 Supplied by A. E. Parsons Melbournetheodolite scientific-instruments surveying

Theodolites are a highly accurate instrument that measures angles between designated visible points in the horizontal and vertical planes. The theodolite has a long history, with the term first found in 1571 in a surveying textbook 'A geometric practice named Pantometria' by Leonard Digges. (source https://en.wikipedia.org/wiki/Theodolite). Theodolites are used by surveyors as part of their everyday work and although there is no specific information regarding the provenance of this particular one it is assumed it was used locally by the Shire of Marong and / or the Lands Department. Edwin Watts started the company in 1856, trading up to 1920s as E.R. Watts & Son with E. R. Watts & Son Ltd amalgamating with Adam Hilger Ltd to form Hilger & Watts in 1948.0442.1 A black and grey theodolite no 39161 made by Watts & Sons. Various moving parts showing signs of extensive use particularly on the uprights on the main body and around knobs and dials where the paint is worn back to brass. Is housed in original box with key, oil container and pin. 0442.2 handwritten instructions for making adjustments to the Theodolite written on the back of Road Users' Association of Victoria letterhead note paper.Watts & Sons / London / 5974 For N H Seward / Melbournelands and survey department bendigo, shire of marong

The theodolite was sold by T. Gaunt & Co. of Melbourne, a manufacturer, importer and retailer of a wide variety of goods including jewellery, clocks and watches, navigational and measuring instruments, dinnerware, glassware and ornaments. Thomas Gaunt photograph was included in an album of security identity portraits of members of the Victorian Court, Centennial International Exhibition, Melbourne, 1888. (See further details below.) History for Troughton & Simms: Edward Troughton & William Simms established a scientific instrument making business in London in 1826. Edward Troughton (1756-1835) had previously had his own scientific instrument business, inherited from his father. His achievement's included a transit telescope for Greenwich Observatory (1816) and the precision surveying instruments for the Ordnance Survey of Britain, Ireland and India. William Simms (1793-1860) had trained as a goldsmith and began to gain work dividing circles on fine astronomical instruments. When William Simms died in 1860, the business was taken over by his son James and nephew William. Troughton & Simms shop in Fleet Street became the hub of the finest scientific instrument made in London, in a period in which there was an expanding demand for precision instruments, for astronomy, surveying and precision measurement. They made instruments for Greenwich Observatory, for imperial surveys and exploring expeditions. When fire destroyed the Houses of Parliament in 1834, the firm was commissioned to create new standard lengths, this required 10 years of testing against the remaining old measurements. Troughton and Simms made several of the main instruments for Melbourne Observatory, including an 18 inch azimuth used of the Geodetic Survey, portable transit instrument (circa 1850), zenith sector (1860), a 4.5 inch equatorial telescope (1862), an 8 inch equatorial telescope (1874) spectroscope (1877) and an 8 inch transit instrument in (1884). While the firm had an excellent reputation for quality the company exasperated many of its customers with delays of years in delivering some instruments. History for Thomas Gaunt: Thomas Ambrose Gaunt (1829 – 1890) was a jeweller, clock maker, and manufacturer of scientific instruments, whose head office and showroom were at 337–339 Bourke Street, Melbourne, Victoria, Australia. Thomas Gaunt established Melbourne's leading watchmaking, optical and jewellery business during the second half of the 19th century. Gaunt arrived in Melbourne in 1852, and by 1858 had established his own business at 14 Little Bourke Street. Around 1869 he moved to new premises in Bourke Street on the corner of Royal Arcade, Gaunt's shop quickly became a Melbourne institution. Gaunt proudly advertised that he was 'The only watch manufacturer in the Australian colonies'. While many watches and clocks may have had Gaunt's name on the dial, few would have been made locally. Gaunt did make some watches for exhibitions, and perhaps a few expensive watches for wealthy individuals. Gaunt's received a telegraph signal from Melbourne Observatory each day to correct his main clock and used this signal to rate and repair ship's chronometers and good quality watches. Thomas Gaunt also developed a department that focused on scientific instrumentation, making thermometers and barometers (from imported glass tubes), telescopes, surveying instruments and microscopes. Significance: With the rapid urban expansion, one of the most important needs of the new colony was to survey and map the landscape of the Australian Colony’s interior. Theodolites, such as this one, made by Troughton and Simms, who were significant scientific instrument makers of the 19th century were instrumental to the colony's surveyors and would have played an important part in their everyday work. This transit theodolite remains of national significance due to its pioneering role in Australian science and its association with Australia's earliest surveyors and astronomers. It is also significant for its association with nineteenth-century surveying instruments and instrument makers. Theodolite, Vernier repetition theodolite with enclosed horizontal circle (of about 130 mm diameter). Vertical circle exposed and somewhat corroded (diameter about 115 mm). Plate level 20" per division. Altitude bubble 20" per division. Horizontal and vertical circle intervals 20". Original (blue/grey) paint. Altitude bubble setting screw disabled. Tribrach allows movement of theodolite by 15 mm inside tribrach (for centering).Inscribed on the inner mounting plate,“Specially made in England for T Gaunt & Co Melbourne” and inscribed a little lower “Troughton & Simms London”flagstaff hill, warrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, theodolite, t. gaunt & co, troughton & simms, scientific instrument, measuring instrument, surveyor's instrument

Theodolites are a highly accurate instrument that measures angles between designated visible points in the horizontal and vertical planes. The theodolite has a long history, with the term first found in 1571 in a surveying textbook 'A geometric practice named Pantometria' by Leonard Digges. (source https://en.wikipedia.org/wiki/Theodolite). Cooke Troughton & Simms began when John Troughton starting selling products in Fleet Street, London in 1782. He went into partnership with his brother Edward in 1807 who expanded the business considerably. William Simms, a former apprentice with the company was taken as a partner and then manager after Edward died in 1835 and the company became Troughton & Simms. By 1887 the company was able to produce all the parts necessary for their instruments and the company employed nearly 200 people and was one of the most well respected firms of instrument makers of the 1800's. James Simms, son of William who had inherited the company died in 1915 and the company was turned into a limited liability company by his two sons William and James. Things however were not so easy for the two sons and in 1922 the business was brought out by their rival T. Cooke & Sons becoming Cooke, Troughton & Simms. Theodolites are used by surveyors as part of their everyday work and although there is no specific information regarding the provenance of this particular one it is assumed it was used locally by the City of Bendigo and / or the Lands Department.A grey theodolite no 39161 made by Cooke, Thoughton & Simms. Various moving parts showing signs of extensive use particularly on the uprights on the main body and around knobs and dials where the paint is worn back to brass.Cooke, Thoughton & Simms Ltd / York. England / No 39161. Sticker; DPS - Asset No / (barcode) / 0010173city of greater bendigo administration item, lands and survey department bendigo

Theodolite part of survey setequipment, ww2, army, surveying

Troughton & Simms - Londontheodolite, scientific instruments, troughton & simms, spirit levels, guages

8475.1 - Naked brass and painted black Theodolite.- Stanley, London 114269 patent

Item belonged to Maxwell Lennox MATHESON 418447 RAAF. Refer Cat No1959 for his service history. The two items were put together to make a home made Theodolite.Metal, glass construction consisting of an eye piece from a bomb sight eye piece with several adjustments fitted to an ASTRO Compass MKII and rotates on a base"AM ASTRO Compass MKII Ref 6A/1174 3.C"surveying-terrestrial, compass

This theodolite was used by `Mr Dawson' (presumably William Tennant Dawson c.1820-1873) who `surveyed much of the area around and beyond Stratford'. It was damaged by the fire which burnt the original Roseneath home in 1921, when the Macleods were in residence. (Mrs W.T. Dawson was a Macleod). One little boy aged 3 years was given the job of saving everything on the kitchen table when the fire started at breakfast time. The theodolite was possibly in use by Dawson when he laid out St Kilda Road.This theodoite consists of a bottom plate, which is damaged and has melted metal. This rises to a ball joint, on which is pivoted another plate on which were housed four screws, of which three remain, to adjust the level. Above this is another plate, with compass markings and melted glass."Troughton and Simm's/London" in fine engraving on upper plate.surveyors, instruments

Surveying instrument for measuring horizontal and vertical anglesmetal instrument in boxsurveying equipment

Sighting compass / surveyors compass used in conjunction with theodolite for accurate readings of angles between designated visible points in the horizontal and vertical planes.Brass surveyors cross with original box. Used in conjunction with theodolite to take compass readings. Architects' / N. H. SEWARD / Instrumentscity of greater bendigo surveying

Used to measure the rate of rise of helium balloons The telescope is mounted on two movable axes. One axis (vertical) rotates to change elevation, the other (horizontal) azimuth. There are vernier scales and in some cases micrometres that give precise readouts of the relative position of the telescope to each axis. The instrument is set up so that it is level and it is pointed towards true north with both scales reading 0 degrees exactly. A balloon is released in front of the theodolite. It is sighted at timed intervals (usually one minute apart) and the position of the theodolite's telescope (azimuth and elevation) is recorded. It can chart the direction and velocity of winds at various altitudes The rate of ascent of a balloon is mostly dependant on the balloon's drag and its "free lift" (the vertical pull of the balloon). There is some degree of control over these these factors, and as a result, it possible to know approximately how high our balloon will be at any given time after its release. Given a known height and an angular direction (read off the theodolite) to the balloon, a fix is made of the horizontal movement component of the balloon's travel as it moves through different altitudes. The horizontal movement is due to the winds blowing the balloon around at the altitudes that the balloon is traveling throughTheodolite used to measure the rate of rising helium balloons The rate of rise is used in atmospheric calculations such as upper winds and determining inversion layersforests commission victoria (fcv), bushfire, weather

This is a set of 1photographs of surveyors in the field measuring distances using chains, taking observations using theodolites and operating electric distance measurement equipment. They were probably employed in establishing mapping and geodetic control operations or the surveyors may have been in training. The photos were most likely taken in the 1950s and 1960s. Photos .1P to .6P feature personnel setting up geodetic survey chaining equipment to measure distances. The surveyor in Photo .5P is LTCOL Howard Angus Johnson MBE who served from 1936 to 1954. The RA Svy surveyor in photos .7P to .12P were using a theodolite to take angular measurements. They were usually supported by an observer who recording their readings on a booking form. The surveyor in Photo .10P and .11P is LTCOL Jorge Gruszka, who served from 1955 to 1985. He was CO of the Army Survey Regiment from 1982 to 1985. The surveyor in photo .13P is cutting an identification blaze on a tree using a hammer and chisel. The tellurometer in Photos .14P to .16P was a MRA1 microwave Electronic Distance Measuring instrument (EDM) introduced in 1958. It and later models 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. The surveyor with the slouch hat is Colonel James ‘Jim’ Leslie Stedman, who served from 1941 to 1978. He 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.This is a set of 17 photographs of surveyors in the field measuring distances using chains, taking observations using theodolites and operating 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) - Photo, black & white, c1950s, unidentified personnel using geodetic survey chaining equipment. .2) to .4) - Photo, black & white, c1950s, geodetic survey chaining equipment. .5) – Photo, black & white, c1950s, Jim Stedman using geodetic survey chaining equipment to measure distances. .6) - Photo, black & white, c1950s, Unidentified personnel geodetic survey chaining equipment. .7) – Photo, black & white, mounted on card, c1950s. Unidentified surveyor undertaking observations on a coral reef using a theodolite. .8) – Photo, black & white, c1950, unidentified surveyor undertaking observations with a Tavistock theodolite. .9) – Photo, black & white, mounted on green card, c1950s. Unidentified surveyor undertaking observations using a plane table. .10) – Photo, black & white, c1955, Jorge Gruszka undertaking observations with a theodolite. 7/55 Basic Survey Course Balcombe. .11) – Photo, black & white, c1950s, Jorge Gruszka undertaking observations with a theodolite. .12) – Photo, black & white, c1946-1948, unidentified surveyor undertaking observations with a theodolite to gain control for the mapping of the Snowy Mountain Diversion Scheme. .13) – Photo, black & white, c1950s, unidentified surveyor cutting a blaze in a tree. .14) and .15) – Photo, black & white, c1960s, Jim Stedman demonstrating EDM equipment. .16) – Photo, black & white, c1960s, L to R: Jim Stedman (probably) and unidentified surveyor demonstrating EDM equipment. .17) – Photo, black & white, 1956, Operation Cutlass - Surveyors SPR W. Crane and J.A. Campbell undertaking observations with a theodolite in extreme conditions..1P on back - First Order Chaining Equipment .2P on back - First Order Chaining Equipment .3P on back - Full catenary 1800 – 1960 replaced by EDM .4P on back - First Order Chaining Equipment .5P on back - H.A. Johnson, Benambra baseline? 1st Order Chaining .6P on back - Chaining .7P on front - Difficult observing conditions especially when the tide is in. The station is sighted (sic) on a coral reef. .8P on back - Tavistock. .10P on back of duplicate in Photo Folder 14 – George (sic) Gruszka 7/55 Basic Survey Course Balcomme (sic) 1955/56 .14P and .15P on back - Jim Stedman demonstrating early EDM equipment.royal australian survey corps, rasvy, army survey regiment, army svy regt, fortuna, asr, surveying

The author, Bennett H. Brough was an associate of theRoyal School of Mines, a member of the COuncil of the Institution of Mining Engineers, a fellow of the geological society and of the Institute of Chemistry, a member of the Mining Institute of Cornwall, and a former instructor of mine-surveying at the Royal School of MinesRed had covered book 372 pages - part of Griffin's Mining Series. Contents include general explanatinos of surveying, an historical sketch, mineral deposits, mining terms, measures of length, measurement distances, the chain, rods, steel bands, measuring wheel, Miner's Dial, Magnetic needle, Fixed needle, German Dial, theodolite, traversing underground. Surface-surveys. plotting the survey, calculation of area, leveling, Telescope, Setting out, Mine-Surveying Problems, Mine Plans, Photographic Surveying, examination Surveying. Illustrations include: Whitelaw's Dial (Fig 22), Theodolite of the American Type with Hoffman tripod head, (fig 37a)mining, surveying, miner's dial, chain, survey, theodolite, scientific instruments

An A5 Booklet containing information on the Australian Army as at 2007 produced by Defence Public Relations. The first section describes "Defence Policy" and the organisations of the Army. This is followed by descriptions of the various Corps with the Australian Army including the Royal Australian Survey Corps. 6403.2 shows Cpl Grant Mcguinness (RASVY) with a theodolite and tripod.An A5 sized booklet of 20 pages plus light cardboard covers. Gloss paper with coloured printed images and supporting text, stapled in the centre. 6403.1 is the front cover has a photo of an infantry soldier in battle camouflage DCPU and pack with a machine gun. 6403.2 is an extract of page 17 describing RASVY showing Cpl Grant Mcguinness (RASVY) with a theodolite and tripod.royal australian survey corps, rasvy, fortuna, army survey regiment, army svy regt, asr

These three photographs were most likely taken from the 1950s to the 1970s. The RASvy surveyor in each photograph was taking angular measurements with the observer recording their readings on a booking form. They were probably employed in establishing mapping and geodetic control operations or the surveyors may have been in training. Photo .1P was possibly taken at Mount Alexander in Central Victoria, a location close to Bendigo, as the stone cairn in the background of the photo appears to be identical to the cairn presently located on top of the mountain. Personnel and location have been confirmed on another photo in the collection with annotation. These three photographs are of surveyors in the field undertaking observations using theodolites. 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) - Photo, black & white, c1950s. Unidentified personnel undertaking observations with a Tavistock geodetic theodolite. .2) – Photo, colour, mounted on card, c1960s. Unidentified personnel undertaking observations with a Kern DKM2 theodolite. .3) - Photo, colour, c1970s. Unidentified personnel undertaking observations with a theodolite..1 – not annotated .2 –annotated on front “Kern DKM2, TOPO 10” royal australian survey corps, rasvy, army survey regiment, army svy regt, fortuna, asr, surveying

This is a set of five photographs of surveyors and support staff in the field undertaking duties in North Queensland and Torres Strait in 1961. The surveyors were employed in the establishment of mapping and geodetic control. In this era surveyors used theodolites to observe horizontal and vertical angles and tellurometers to measure base line distances between survey stations. In photo .2P Joe Farrington is seen taking survey observations using a Tavistock V500 Series Tavistock theodolite at a survey station between the Edward River and Aurukun in the Cape York Peninsula. The Gulf of Carpentaria appears in the background. From 1957 helicopter transport of survey parties revolutionised transport in remote areas. The civilian helicopter was hired from TAA. This is a set of five photographs of surveyors and support staff in the field undertaking duties in North Queensland and Torres Strait in 1961. 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) - Photo, colour, 1961. Andy Millar occupying a survey station on a hill in the Cape York Peninsula, QLD. .2) - Photo, colour, 1961. Joe Farrington taking observations with a V500 Series Tavistock geodetic theodolite at a survey station in the Cape York Peninsula, QLD. .3) - Photo, colour, 1961. Daryl Parker taking a break from survey observations on a hill located on Duaun Island QLD, in the Torres Strait, a few miles south of the PNG coastline. Hill height was 975 ft. .4) - Photo, colour, 1961. Three Torres Strait divers L to R: unidentified, Darku and Ray Mau Daryl standing behind a Tavistock geodetic theodolite on a hill located on Duaun Island QLD, in the Torres Strait, a few miles south of the PNG coastline. .5) - Photo, colour, 1961. Andy Millar holding meat from a small turtle on Duaun Island QLD, in the Torres Strait, a few miles south of the PNG coastline. An unidentified Duaun Island local appears in the background..1P to .5P annotated on back – personnel names, the year and the location. royal australian survey corps, rasvy, army survey regiment, asr, army svy regt, fortuna, surveying

Item .1 "Project Cutlass" - Project Report Mapping Control Survey of New Ireland (PNG) is a report by the Project Officer Major SW Snow RASvy Corps. The Project commenced in August 1956 and concluded 29 Nov 1957. Traversing and Base line measurement used vehicles and two ships and included nearby islands. Includes two photographs. Item .2 Photograph of Bob Skitch Project Cutlass 1956/57 with theodolite Item .3 Photograph of Chas Beach project Cutlass 1957 Patlangat West Base (cemetery). 6353.1 Manilla Folder containing 49 foolscap sized loose page paper report. 12 pages of Intital report followed by 37 pages of Annexes and Appendices. Last page is map of Project Area. 6353.2 B/W Photograph Bob Skitch with Wild T2 Theodolite Project Cutlas 1956/1957 6353.3 B/W Photograph Chas Beach PATLANGAT WEST BASE (Cemetary) Project Cutlass 1957"Aug 56" on front coverroyal australian survey corps, rasvy, fortuna, army survey regiment, army svy regt, asr

Tribrach, brass, an adjustment and levelling section of instruments such as a "Dumpy Level' or "Theodolite". There is a number 32 stamped on the base. One of the adjustment screws is missing.flagstaff hill, warrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village