Showing 10 items matching "adam hilger"
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The Ed Muirhead Physics MuseumSpectrograph, Double Prism Optical
... Engraved on brass cylinder: “Adam Hilger Ltd London England... on brass cylinder: “Adam Hilger Ltd London England” On end of brass ...Double Prism Optical Spectrograph made of standing L-shaped metallic base in grey enamel which supports a brass collimator/telescope abutting a wooden box containing two prisms and camera. Tradition has it that it was designed by Laby but there is no supporting evidence.Engraved on brass cylinder: “Adam Hilger Ltd London England” On end of brass cylinder: “Screw = 5m/m Adam Hilger Ltd London England No. F31.301/25403” -
Federation University Historical CollectionEquipment - Object, Stereo-viewer and Solid State Models, c1928
... adam hilger... of the daguerreotype era, and originals are quite rare. stereoscope adam hilger ...This folding viewer for individual stereoscopic pictures has a cut-out between the lenses to accommodate the nose of the user. The original folding viewer was patented by J. F. Mascher of Philadelphia in March 1853 and was designed to hold stereoscopic portraits using the daguerreotype process. This was at the very end of the daguerreotype era, and originals are quite rare.Metal stereo viewer and many cards including stereoscopic photographs of crystal modals (Bragg's Crystal, Fluorspar, caesieum chloride, zinc-blende, iron pyrites, quartz, Tellurirumetc), and Dr Mullers Universal X-Ray Spectrograph. stereoscope, adam hilger, sir william bragg, w.i. bragg, dr muller, x-ray, crystal, spinel, bismuth, diamond structure, tartaric acid, naphthalene -
The Ed Muirhead Physics Museum
X-Ray Spectrograph, Laby/Hilger
... was manufactured by ADAM HILGER Ltd. to the design of Professor Laby...-Ray spectrum analysis. The instrument was manufactured by ADAM ...The spectrograph employs the principle of single crystal Bragg X-Ray Diffraction to measure wavelengths by interpolation from accepted standard lines. It is suitable for the identification and determination of the charateristic emissions of elements and thus for X-Ray spectrum analysis. The instrument was manufactured by ADAM HILGER Ltd. to the design of Professor Laby and is the best preserved instrument surviving from his research activity. A full description is given in the Hilger Pamphlet with the instrument; alternatively see duplicate in Appendix A5,A6 in Vol 2 of Laby ‘s COLLECTED PAPERS.Laby Bibliography by R W Home “Physics in Australia 1945” pp 106-08; also reproduced by permission as Appenix C in “A Man Ahead of his TImes”By E G Muirhead References. nos 45, 41, 47, 52, 53 -
The Ed Muirhead Physics MuseumX-Ray Spectrograph, Laby/Hilger
... was manufactured by ADAM HILGER Ltd. to the design of Professor Laby...-Ray spectrum analysis. The instrument was manufactured by ADAM ...The spectrograph employs the principle of single crystal Bragg X-Ray Diffraction to measure wavelengths by interpolation from accepted standard lines. It is suitable for the identification and determination of the charateristic emissions of elements and thus for X-Ray spectrum analysis. The instrument was manufactured by ADAM HILGER Ltd. to the design of Professor Laby and is the best preserved instrument surviving from his research activity. A full description is given in the Hilger Pamphlet with the instrument; alternatively see duplicate in Appendix A5,A6 in Vol 2 of Laby ‘s COLLECTED PAPERS. -
City of Greater Bendigo - Civic CollectionInstrument - Theodolite, E. R. Watts & Sons, c 1930
... amalgamating with Adam Hilger Ltd to form Hilger & Watts in 1948.... amalgamating with Adam Hilger Ltd to form Hilger & Watts in 1948. Lands ...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 -
Flagstaff Hill Maritime Museum and VillageRangefinder, E R Watts & Sons, 1930-1945
... % of Adam Hilger and the microscope maker James Swift and Son Who...% of Adam Hilger and the microscope maker James Swift and Son Who ...E. R. Watts and Son, makers of theodolites and other surveying instruments, of 123 Camberwell Road, London. The company was established in 1856 by Edwin Watts at twenty-three he had saved £100 from his earnings to start the business with his staff consisting of one boy and later Alexander Clarkson as an apprentice with the workshop a small room over a Bemondsey stable. Watts' first order was from Negretti and Zambra for a mining dial Alexander Clarkson In the early days the firm worked mainly on marine compasses. Edwin Watts would go down to the Docks to adjust the compasses once they had been installed on the ships. In May 1873 the business moved to larger premises a house with a garden. The workshop was also the home of Mr and Mrs Watts and their five sons and three daughters. By now there were fifteen to twenty men employed by the firm. The company were commissioned to supply the Theodolites and Levels for the construction to the Canadian Pacific Railway in 1881. Towards the end of the century, the firm began to make heliographs continuing to produce them for the government until just before the Second World War when by agreement assigned their manufacture to another firm. 1904 The first dividing engine was completed by George William Watts. It was so remarkable an instrument at the time and for years afterwards, In 1907 Arthur Ames went to Canada and started an organisation in Winnipeg in 1909 this became a separate company called E. R. Watts and Son Ltd. of Ottawa. This firm developed considerably and was eventually with the co-operation of three other instrument companies (Cambridge Instrument Co, Ross, and Negretti and Zambra), were reconstituted as ”Instruments Ltd” of Ottawa and Toronto. During the next ten years, the firm expanded greatly to include glass grinding, leather work, dividing and engraving, testing, adjusting and packing. This expansion was continued during the First World War when workshops were completed and the machinery installed and running within eleven weeks from the start of construction. During the war, a Sergeant Coles, among the rats, lice and mud of the trenches, fitted various bits of scrap into his cocoa tin and made the first Flash Spotter for plotting the positions of enemy guns. Coles was rushed home to the firm's factory where he and George William Watts designed a spotter not made out of a cocoa tin and as a result, the Watts Vertical Force Variometer was developed during WWI. Other Watts instruments made in the First World War included the Light Mountain Theodolites which were taken on Mt Everest expeditions. In 1919 ER Watts and Sons was incorporated as a limited company and in 1939 G. A. Whipple joined the Board of Directors. Shortly afterwards, Frank Charles Watts died having been Chairman of the firm for over 37 years and seen it through the First World War with all its expansions and difficulties. He was succeeded by his brother George William Watts with the vacant post of Managing Director being filled by G. A. Whipple. During the Second World War, the company expanded further and the number of employees rose to well over 1,300. In 1946 Watts acquired 78% of Adam Hilger and the microscope maker James Swift and Son Who were Manufacturers of Theodolites, Levels, Alidades, Meteorological Instruments, Variometers, and many other types of scientific instruments Then in 1948 the company amalgamated with Adam Hilger as Hilger and Watts which was then incorporated as a public company.Naval Rangefinder with a vertical wooden handle, and an arrangement of optical lenses. Three reversible brass inserts calibrated on both sides in yards, correspond to various base heights, (20 and 25 feet, 30 and 35 feet and 40 and 50 feet). They are fitted along the axis of the instrument. When the scale for the appropriate base height is selected and inserted, the carriage can be slid for coincidence and the distance read at the index mark on the sliding carriage.inscribed "Rangefinder Cotton Type Mk II" Calibrated scale up to 5000 yds (50 ft), 5000 yds (35 ft), 4000 yds (25 ft) made by E. R. Watts & Son.flagstaff hill, warrnambool, shipwrecked coast, flagstaff hill maritime museum, maritime museum, shipwreck coast, flagstaff hill maritime village, great ocean road, rangefinder, cotton type, e r watts & sons, naval range finder, marine equipment -
The Ed Muirhead Physics Museum
Rotating Anode X-ray Tube
... by Adam Hilger Ltd. (see cat. No. 38). School of Physics... by Adam Hilger Ltd. (see cat. No. 38). School of Physics ...The investigation of the x-ray appears early on to have been a priority research topic at the University of Melbourne’s School of Physics. This interest was sparked by the appointment in 1889 of Professor T.R. Lyle. Lyle, who was head of the school until 1915, is thought to have been the first person in Australia to have taken an x-ray photograph. A copy of this photograph can be found in the School of Physics Archive. For this particular experiment Lyle actually made his own x-ray tube. His successor, Professor Laby, continued to work with x-rays. During the 1920s Laby worked on the x-ray spectra of atoms and in 1930 he co-published with Dr. C.E. Eddy, Quantitative Analysis by X-Ray Spectroscopy. Also with Eddy, Laby produced the landmark paper Sensitivity of Atomic Analysis by X-rays. Laby went on to have an x-ray spectrograph of his own design manufactured by Adam Hilger Ltd. (see cat. No. 38). School of Physics, the University of Melbourne Cat. No. 22. Jacqueline Eager Student Projects Placement, Cultural Collections 2005 A modern X-ray tube differs little from the original Coolidge tube. A minor modification is the rotating anode type that extends the life and increases the available power of the tube by presenting a new portion of the anode when required. “P125/20/40/NrF038803 (?) SIEMENS-REINIGER-WERRE AG ERLANGEN Eigen filleung (?) mind. 0,7 mm AL” On rotating shaft: “FO/33803” On cathode: “23C” -
The Ed Muirhead Physics Museum
Gas X-ray Tube
... by Adam Hilger Ltd. (see cat. No. 38). School of Physics... design manufactured by Adam Hilger Ltd. (see cat. No. 38). School ...The investigation of the x-ray appears early on to have been a priority research topic at the University of Melbourne’s School of Physics. This interest was sparked by the appointment in 1889 of Professor T.R. Lyle. Lyle, who was head of the school until 1915, is thought to have been the first person in Australia to have taken an x-ray photograph. A copy of this photograph can be found in the School of Physics Archive. For this particular experiment Lyle actually made his own x-ray tube. His successor, Professor Laby, continued to work with x-rays. During the 1920s Laby worked on the x-ray spectra of atoms and in 1930 he co-published with Dr. C.E. Eddy, Quantitative Analysis by X-Ray Spectroscopy. Also with Eddy, Laby produced the landmark paper Sensitivity of Atomic Analysis by X-rays. Laby went on to have an x-ray spectrograph of his own design manufactured by Adam Hilger Ltd. (see cat. No. 38). School of Physics, the University of Melbourne Cat. No. 22. Jacqueline Eager Student Projects Placement, Cultural Collections 2005 The original X-ray tubes relied on low pressure operation. The electrons and positive ions are produced in the residual gas. Positive ions are accelerated towards the cathode and release electrons which on hitting the anode produce X-rays. These early gas X-ray tubes operated satisfactory only over a narrow pressure range. Stamped Label: “NATURAL PHILOSOPHY LABORATORY/ No/ UNIVERSITY OF MELBOURNE” Stamped: “90268 M. No. 5171[??]/No. 2156[??]/ M. No. 346585.” x-ray tubes, gas x-ray tube, laby, spectroscopy -
The Ed Muirhead Physics Museum
Gas X-ray Tube, Victor
... by Adam Hilger Ltd. (see cat. No. 38). School of Physics... design manufactured by Adam Hilger Ltd. (see cat. No. 38). School ...The investigation of the x-ray appears early on to have been a priority research topic at the University of Melbourne’s School of Physics. This interest was sparked by the appointment in 1889 of Professor T.R. Lyle. Lyle, who was head of the school until 1915, is thought to have been the first person in Australia to have taken an x-ray photograph. A copy of this photograph can be found in the School of Physics Archive. For this particular experiment Lyle actually made his own x-ray tube. His successor, Professor Laby, continued to work with x-rays. During the 1920s Laby worked on the x-ray spectra of atoms and in 1930 he co-published with Dr. C.E. Eddy, Quantitative Analysis by X-Ray Spectroscopy. Also with Eddy, Laby produced the landmark paper Sensitivity of Atomic Analysis by X-rays. Laby went on to have an x-ray spectrograph of his own design manufactured by Adam Hilger Ltd. (see cat. No. 38). School of Physics, the University of Melbourne Cat. No. 22. Jacqueline Eager Student Projects Placement, Cultural Collections 2005 The original X-ray tubes relied on low pressure operation. The electrons and positive ions are produced in the residual gas. Positive ions are accelerated towards the cathode and release electrons which on hitting the anode produce X-rays. These early gas X-ray tubes operated satisfactory only over a narrow pressure range. Manufacturer’s mark stamped: “PATENTED/ VICTOR/ TRADEMARK/ MADE IN BOSTON U.S.A./ TUNGSTEN” A white circular stamp, stamped near the manufacturer’s mark: “[illegible]TER WIGGH[illegible]” Stamped label: “NAT. PHIL. LAB./ No./ UNIV. OF MELB.” Inscription on the end face of the copper piece: “PAT. SEP 5’ 11 DEC. 30’13/ JUNE 23, 14 NOV. 30.15/ 43835” -
The Ed Muirhead Physics Museum
Coolidge X-ray Tube
... by Adam Hilger Ltd. (see cat. No. 38). School of Physics... design manufactured by Adam Hilger Ltd. (see cat. No. 38). School ...The investigation of the x-ray appears early on to have been a priority research topic at the University of Melbourne’s School of Physics. This interest was sparked by the appointment in 1889 of Professor T.R. Lyle. Lyle, who was head of the school until 1915, is thought to have been the first person in Australia to have taken an x-ray photograph. A copy of this photograph can be found in the School of Physics Archive. For this particular experiment Lyle actually made his own x-ray tube. His successor, Professor Laby, continued to work with x-rays. During the 1920s Laby worked on the x-ray spectra of atoms and in 1930 he co-published with Dr. C.E. Eddy, Quantitative Analysis by X-Ray Spectroscopy. Also with Eddy, Laby produced the landmark paper Sensitivity of Atomic Analysis by X-rays. Laby went on to have an x-ray spectrograph of his own design manufactured by Adam Hilger Ltd. (see cat. No. 38). School of Physics, the University of Melbourne Cat. No. 22. Jacqueline Eager Student Projects Placement, Cultural Collections 2005 In 1913 Coolidge overcame the limitation of the narrow operating range of the gas X-ray tubes with the invention of the vacuum X-ray tube. A filament heated by an electric current directly releases electrons by thermionic emission. In thermionic emission, electrons are emitted from a metal surface directly by the application of an electric current to heat a wire filament. The electrons accelerate to the anode and produce X-rays. The anode has associated cooling fins due to the high temperatures attained by the release of kinetic energy by the electrons on colliding with the anode. Internal Glass sleeve: “A941/L2593/2821”
