- 1602 (x)
- Pacific Photo (x)
- Scientific Instruments (x)
- Search Results
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Title
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Surveying telescope
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Format
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photograph: print
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Description
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Telescope with level for surveying, includes attachment for mounting on tripod. With leather case labeled Throop College.
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Title
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Weights, 2 boxes, brass
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Format
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photograph: negative
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Description
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One box has complete set of ten; the other is missing two. Mfg. Christian Becker, NY.
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Title
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Potentiometer, type K-2
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Format
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photograph: negative
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Description
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Serial no. 279092. Appears to be Leeds and Northrup model K-2, with some modification to the dials on the right side. See L&N catalog E-50B(3), 1940. Mfg: Leeds and Northrup, Philadelphia, PA.
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Title
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Astrolabe
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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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Variable scale ruler
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Format
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photograph: print
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Description
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Manufactured by Gerber Scientific Instrument Company.
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Title
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AIR-7 (Mk148) fuze
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Format
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photograph: negative
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Date
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1943
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Description
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For 3.5″ and 5.0″ aircraft rockets. 2.96″ long. Steel and brass. Modification of AIR-2 (Mk137) fuze, designed to be used in combination with a base fuze. Could be used safe (unarmed) or armed at the pilot’s discretion. About 5,000 fuzes were manufactured and loaded for the navy by Caltech and delivered late in 1943. Also 25,000 sets of parts were made for assembly with parts from AIR-2 (Mk137). “A”: cutaway version with cap (shipping guard); “B”: has cap and adapter to accommodate different thread arrangement for fuze seat liner of the 5.0″ rocket.
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Title
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Chemistry models, plastic
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Format
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photograph: negative
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Description
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Part of alpha helix and a peptide or amide group. Mfg. CIT Instrument Shop.
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Title
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pH meter, Model G
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Format
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photograph: negative
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Date
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1957
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Description
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Serial no. 189522. Mfg. Beckman Instruments, Fullerton, CA.
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Title
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Potentiometer, standard resistance
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Format
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photograph: negative
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Description
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Model no. 6103. Oak, brass fittings, separate top. Sold by James Biddle, Philadelphia. Mfg. Otto Wolff, Berlin.
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Title
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Aviation altimeter
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Format
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photograph: print
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Description
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Kollsman war surplus aviation altimeter.
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Title
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Burt photo cell
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Format
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photograph: negative
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Date
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1928
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Description
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Developed in late 1920s by Robert Burt (CIT PhD 1926). Used in the study of photoelectric phenomena. Mfg. R.C. Burt Scientific Mfg. Co.
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Title
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Protractor (B)
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Format
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photograph: negative
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Description
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Wood case. Larger than ST-PH-17, but otherwise similar. Mfg: Keuffel and Esser Co., NY.
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Title
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Army air force bubble sextant
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Format
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photograph: print
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Description
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Battery operated, night reading, cylinder recording, bubble sextant for measuring latitude.
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Title
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Hygrometer
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Format
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photograph: negative
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Description
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Manufactured by Houston Glass Fabricating, and used by Max Delbruck. 16″ x 9″ 5″.
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Title
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Torsion seismograph
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Format
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photograph: negative
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Description
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Mfg. Fred C. Henson Co., Pasadena. 14.5″ tall. The full name of the instrument is the Wood-Anderson torsion seismograph. It was invented jointly by Harry O. Wood of the Seismo Lab and J.A. Anderson of the Mt. Wilson Observatory. Patent registered 9-1-25 in the name of the Carnegie Institution of Washington.
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Title
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Tower drafting set
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Format
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photograph: print
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Description
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Comprised of dividers and compasses. Manufactured in Germany.
