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(81 - 100 of 247)
Microscope eyepiece, double
Title
Microscope eyepiece, double
Format
photograph: negative
Description
8.5″ high. This microscope part from an unknown manufacturer.
Telescope pattern, Palomar 200″ (B)
Title
Telescope pattern, Palomar 200″ (B)
Format
photograph: negative
Description
Wood pattern used to make the casting of the telescope’s declination slip clutch. Mfg. by CIT.
Wind direction plate with compass, Arabic
Title
Wind direction plate with compass, Arabic
Format
photograph: negative
Description
Inscribed in Arabic.
Cell compartment, DU spectrophotometer
Title
Cell compartment, DU spectrophotometer
Format
photograph: negative
Description
Black metal, heavy, trough-shaped, one end mounted and raised on adjustable legs. Not shown in Instruction Manuals for DU spectrophotometer as standard equipment. Possibly shop-made.
Claude Lorraine mirror in box
Title
Claude Lorraine mirror in box
Format
photograph: negative
Description
Nothing more in known about this item.
Transformer
Title
Transformer
Format
photograph: negative
Description
Given to Chemical Engineering Division by A.A. Noyes in 1931.
Galvanometer
Title
Galvanometer
Format
photograph: negative
Description
Damaged by all from the shelf during the 1-17-94 Northridge earthquake, two pins on side broke off, repairable. E. Leybold’s Nachfolger, Cologne.
Volt-ammeter
Title
Volt-ammeter
Format
photograph: negative
Description
Model 280. Patent dates are 1894, 1895, 1901. Mfg: Weston Electric Co., Newark, NJ.
Deformer apparatus
Title
Deformer apparatus
Format
photograph: print
Description
Pratt and Whitney deformer apparatus housed in mahogany box. Mechanical gauge for measuring movement in structures.
Balance with two glass pans
Title
Balance with two glass pans
Format
photograph: negative
Description
One of the glass pans is broken.
Rocket, Holy Moses, 3 pieces
Title
Rocket, Holy Moses, 3 pieces
Format
photograph: negative
Description
The Holy Moses was one of the rockets produced during WWII by the Caltech rocket project for the military.
pH meter, Model G
Title
pH meter, Model G
Format
photograph: print
Date
1957
Description
Serial no. 143220 (in lid; lid is detached). Manufacturer: Beckman Instuments, Inc., 1957. Similar to ST-BE-18. Original case is formica with lid (detached, no hinges or handle); lower door missing. With original instructions inside lid, dated January 1957.
Heer Levelling Telescope
Title
Heer Levelling Telescope
Format
photograph: print
Description
Peter Heer levelling telescope. Manufactured in Chicago Illinois. Housed in wooden case
Resistor
Title
Resistor
Format
photograph: negative
Description
Serial no. 2059. 10 Ohm resistor. Hartmann and Braun AG, Frankfurt, Germany.
Ion chamber used by Millikan and Bowen
Title
Ion chamber used by Millikan and Bowen
Format
photograph: negative
Description
Small cylindrical electroscope used in 1932 in Dallas, TX. See Phys. Rev. 44:246(1933). Mfg. CIT Physics Shop.
Potentiometer, type B high precision #2780
Title
Potentiometer, type B high precision #2780
Format
photograph: negative
Description
Serial #52904. Mfg: Rubicon Co., Philadelphia, PA.
Weights for electric balance
Title
Weights for electric balance
Format
photograph: negative
Date
1909
Description
Weights for ST-PH-22.1. Mfg: Kelvin and James White, Ltd.
Keuffel and Esser Le Roy lettering set
Title
Keuffel and Esser Le Roy lettering set
Format
photograph: print
Description
Used for drafting. Housed in wooden box.
Set of glass dewars
Title
Set of glass dewars
Format
photograph: print
Description
Named for its inventor Sir James Dewar (1841-1923). This set made at Caltech by the glassblower of the Low Temperature Physics group, Fred A. Wild.
pH meter, Model G
Title
pH meter, Model G
Format
photograph: negative
Description
Serial no. 3443. Mfg. by National Technical Laboratories.