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- Search Results
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Title
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Air Flow Meter with Variometer
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Format
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photograph: print
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Description
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Air flow meter, with a German made variometer or vertical velocity indicator. Probably used on a glider owned by Paul B. MacCready. MacCready would later development an advancement for the variometer that is now known as the “MacCready ring.”
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Title
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Spring balances (2)
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Format
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photograph: negative
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Description
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Two identical balances with same identifying marks.
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Title
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AIR-2 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 4.5″ barrage rocket. Designated by the navy as Mk137. 2.965″ long, brass and steel. About 42,000 manufactured by Caltech for the navy in 1943. Prototype for several later fuzes. “A”: cutaway model with 10-vane propeller. “B”: standard model with 8-vane propeller, cutaway. “C”: Model 2, 10-vane propeller; minor alterations over the original model were made by the Bureau of Ordnance (Buord).
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Title
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Electroscope, quartz fiber
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Format
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photograph: negative
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Description
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Patent no. 2022117, model 1, serial no. 404. Set up on a wood box, containing battery cell. This instrument was acquired and modified by Wilfred Mann (the accused “fifth man” of the Philby spy ring) when he was at Chalk River. Later it was used by Mann in the radiation dept. of the NBS. Designed by C.C. and T. Lauritsen. Mfg: Fred C. Hensen Co., Pasadena, CA.
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Title
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Geiger counter
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Format
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photograph: negative
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Description
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There is no information available for this item. Mfg: CIT Physics Shop.
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Title
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Mk156-158 fuze
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Format
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photograph: negative
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Description
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For several 7.2″ shipboard rockets (Mk156) and for 7.2″ projector charges (Hedgehogs) (Mk158). 7.345″ long. Steel, brass, stainless steel, die-casting alloy. These were underwater vane-arming fuzes. Both mark numbers treated as one fuze, developed from prototypes Mk131 and 136. Cutaway version.
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Title
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Box, hand-made, grey-printed, wooden
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Format
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photograph: negative
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Description
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Probably an attachment for the DU spectrophotometer, possibly a hydrogen lamp unit. Given with the spectrophotometer, but so far unidentified. Housing is probably shop-made at CIT.
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Title
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pH meter, Model G
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Format
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photograph: print
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Description
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Serial no. not shown. With plate from Braun Coporation (manufacturer or distributor?). Similar to ST-BE-18 and ST-BE-20 but original case is wood with lid (detached, no hinges or handle); lower door missing. Lacks instructions and date.
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Title
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Electroscope, quartz fiber
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Format
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photograph: negative
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Description
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Manufactured by Fred C. Henson Co., Pasadena. Design by C. C. Lauritsen. Physics.
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Title
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Cylindrical calculator
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Format
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photograph: print
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Description
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Nestlers Rechen-Walze cyclindrical calculator mounted on wooden base.
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Title
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Slide rule
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Format
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photograph: negative
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Description
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Belonged to Lyman Bonner. Mfg: Keuffel & Esser Co., NY.
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Title
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Microscope
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Format
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photograph: print
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Description
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Set of three field microscopes, with crosshair calibration, to be used in conjunction with deformers. Encased in oak box.
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Title
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AIR-1 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 first model of Caltech 4.5″ barrage rocket; modified army M52 point-detonating fuze. 3.95″ long, steel and aluminum. Stamped 2706. 6000 were manufactured between Aug.-Dec., 1942. Replaced in early 1943 by AIR-2 (Mk137).
