Developed in the 1940s or 1950s for Bell System automatic switching, by R.M. Bozorth (CIT 1922). Mfg. Bell Labs.
ID number
ST-ME-02
Title
Microscope in wood box
Abstract
Mfg. Spencer Lens Co., Buffalo, NY. Two extra eyepieces. Belonged to Edward Hughes.
ID number
ST-MU-15
Title
Voltmeter
Abstract
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.
ID number
ST-PH-02
Title
Compass with pocket string sundial
Abstract
Signed and dated. See “Scientific Instruments Ancient and Modern.” Mfg: Ulrich Schniep, Munich, Germany.
ID number
ST-WA-02
Title
Telescope from George Ellery Hale
Abstract
With a 4.25 in. objective lens and a focal length of 40 in., the refracting telescope was probably first used by Hale for solar work. In his advancing years Hale used it at his private observatory. Reportedly, it was later used in the site search for the Palomar telescope and also in optics courses at Caltech through the late 1950s. With wooden stand. Manufacturer: John Byrne, New York, 1885.
ID number
ST-AS-01
Title
Weights set
Abstract
Mfg. Christian Becker Inc., NY.
ID number
ST-BI-01
Title
Transformer
Abstract
Given to Chemical Engineering Division by A.A. Noyes in 1931.
ID number
ST-CH-01
Title
Ion chamber used by Millikan and Bowen
Abstract
Smallest cylindrical electroscope. Used in Texas in 1922. Sent up to about 15.5 kilometers by balloon. Clock and photographic drum missing as of 5/20/70. See Phys. Rev. 27:353(1926). Mfg. CIT Physics Shop.
ID number
ST-CR-01
Title
Slide rule in leather case
Abstract
Log Log Duplex. Mfg. Keuffel & Esser Co.
ID number
ST-EN-01
Title
Altimeter in leather case
Abstract
Instrument was used by Heinz Lowenstam in field work in Palestine in the 1930s. It was given to him by Von Drigalsky, who had had it on the German Antarctic expedition. See Lowenstam oral history, p. 24. Mfg. German-made.
ID number
ST-GE-01
Title
Cathode ray tube, German
Abstract
German-made. Recovered by Col. A.H. Warner (CIT 1927) near Regensburg, Germany. Mfg. R&M Eigentum.
ID number
ST-ME-01
Title
Microscope, handmade English
Abstract
Mfg. Baker, High Holborn, London. Brass, 21” high. No box.
ID number
ST-MU-01
Title
Microammeter, Volta Meylan d'Arsonval
Abstract
Mfg: Gaiffe-Gallot & Pilon, Paris.
ID number
ST-PH-01
Title
Plumb bob, Egyptian
Abstract
Diorite with bronze ring. See “Scientific Instruments Ancient and Modern.”
ID number
ST-WA-01
Title
Two mineral samples
ID number
ST-GE-04
Title
AIR-1 fuze
Abstract
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).
ID number
ST-RK-1
Title
AIR-3 fuze
Abstract
For 7.0” chemical warfare rocket (CWR), modified from AIR-2. 2.9” long, steel and brass (missing burster tube). About 600 manufactured by Caltech for testing but never standardized. The rocket for which it was disigned was replaced by the 7.2” CWR, which used the AIR-5 (Mk147) fuze.
ID number
ST-RK-3
Title
AIR-4 fuze
Abstract
For fast-burning 4.5” barrage rocket. About 3.7” long, steel and brass with Bakelite propeller (loose). 400 made for testing but the rocket for which it was intended was never standardized.
ID number
ST-RK-4
Title
AIR-6 fuze
Abstract
For fast-burning, short-range 4.5” barrage rocket. 4.2” long. Steel and brass, with Bakelite propeller. Since the fast-burning, short-range 4.5” barrage rocket was not standardized, this fuze was not standardized for production. 1,200 were manufactured by Caltech and delvered to Army Ordnance in June, 1944, for tests in a demolition rocket.
