- 1602 (x)
- Individuals (x)
- Scientific Instruments (x)
- Search Results
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Title
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Galvanometer, thermo, Duddell patent
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Format
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photograph: negative
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Description
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Has serial #46280. Original instructions and test results in file. Mfg: Cambridge & Paul Instrument Co.
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Title
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Voltmeter
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Format
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photograph: negative
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Description
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According to Bridge Lab. inventory, manufactured by Cambridge and Paul, although no maker’s mark is attached. Written on the scale: “Ayrton Mather E.S.V. No. L2864.” With wooden stand, possibly shop-made. Mfg: Cambridge & Paul Instrument Co.
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Title
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Temperature gauge
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Format
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photograph: negative
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Description
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Was used with a thermocouple to measure temperature. On dial inside: “Charles Engelhard Inc., 30 Church Street, New York City”.
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Title
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Voltmeter, multicellular electrostatic (A)
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Format
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photograph: negative
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Description
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Has model or serial number 2900. Wooden box. See exhibit catalog, “Scientific Instruments Ancient and Modern,” for more information. Mfg: Kelvin & James White, Ltd.
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Title
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Potentiometer, International OHM
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Format
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photograph: negative
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Description
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Serial no. 6680. Very similar to ST-MU-06, but larger. Calibration record inside top is dated Nov. 1947. Imported by James Biddle, Philadelphia. Mfg: Otto Wolff, Berlin.
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Title
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Mk140 fuze
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Format
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photograph: negative
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Date
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1942
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Description
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For 7.2″ shipboard rockets (Mk8, 10, 15) and Hedgehog ammunition for Mk10 and 11 projectors. 5.982″ long. Steel, plus steel, brass and Zamak die-casting alloy, copper diaphragm seat gasket. Designed to replace Mk135, Model 2, and other fuzes. Development begun July 1942. Difficulties in arming and firing performance halted production; none issued for service use.
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Title
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Compass in brass box
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Format
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photograph: negative
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Description
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Inscribed in Arabic. See “Scientific Instruments Ancient and Modern.”
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Title
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Vacuum circuit breaker
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Format
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photograph: negative
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Description
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WWII vintage. Patent by R. Millikan and R. Sorenson. Mfg. General Electric.
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Title
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Travelling ruler
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Format
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photograph: negative
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Description
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The “London” side is scaled in inches divided into normal halves, quarters and eighths. The “Paris” side is scaled in “inches” equal to approximately 1 and 1/8″ and divided in halves, quarters and twelfths. This does not reflect a metric scale. Appears to be solid ivory. “London” side has address: West 1 St. James’s Street. Mfg: English-made.
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Title
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Keuffel & Esser Alidade
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Format
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photograph: print
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Description
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Keuffel & Esser Alidade, Model N5095A. Serial #130610. Housed in wooden case.
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Title
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Beam compass
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Format
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photograph: print
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Description
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C. Riefler, Nesselwant u. Munchen beam compass, 1 metre.
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Title
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Ion chamber in green box
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Format
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photograph: negative
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Description
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Went up in a satellite. Inscribed by Victor Neher “Number 36 header/has front porch.” Box is labelled “Hugh Anderson.” Mfg. CIT Physics Shop.
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Title
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Ion chamber, early
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Format
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photograph: negative
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Description
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Smallest cylindrical electroscope with clock and photographic drum. Used by Millikan and Bowen in 1922. See Phys. Rev. 27:353 (1926). Mfg. CIT Physics Shop.
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Title
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Diffraction grating, photo negative of
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Format
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photograph: negative
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Date
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-9769
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Description
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Photo negative of a diffraction grating. Ruled by Lewis Rutherford in April 1873. Glass plate measures approx. 2″x2.5″.
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Title
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SIR (Mk139) fuze
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Format
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photograph: negative
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Description
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Model 0: for a variety of 7.2″ rockets. 4.190″ long. Brass alloy, brass rod, steel, die-casting alloy, manganese-bronze, flexible fiber gasket. SIR (“spring-arming, impact-firing rocket”) fuzes were designed for retro-bombing in antisubmarine warfare. Developed in 1942-1943, they were not produced in large numbers because of the abandonment of retro-bombing. “A”: cutaway version; “B”: complete version.
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Title
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Spectrophotometer, quartz
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Format
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photograph: negative
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Description
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Serial D-282. Phototube housing and lamp housing directly attached to main unit. Attached by cord is undistinguished light gray metal box (power supply regulator?) Mfg. National Technical Laboratories, South Pasadena, CA.
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Title
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PIR-22A fuze
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Format
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photograph: negative
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Date
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1945
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Description
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There is no information on how this fuze differs from PIR-22. PIR-22 was made for the 5.0″ HVAR and was 6.02″ long. It was built to be more impact-resistant and more reliable than PIR-20 (Mk164). Preliminary tests were done in September, 1945.
