[J. J. De Moore, California Street Railway superintendent, displaying a device designed to detect damaged cable car cable]

[]Details

Local identifier: AAC-8039
Title: [J. J. De Moore, California Street Railway superintendent, displaying a device designed to detect damaged cable car cable]
Date: 1947 Mar. 20
Issuance: monographic
Collection: San Francisco Historical Photograph Collection
Type of Resource: still image
Physical Description: 1 photographic print: b&w.
Form: graphic
Use and Reproduction: Permission to use this image must be obtained from the San Francisco History Center, San Francisco Public Library: www.sfpl.org/permissions.
Note: Folder: S.F. Transportation-Cable Cars-Powerhouse-Cables.
On back: "ELECTRIC GUARDIAN--This simple little gadget, pointed out by J. J. De Moore, California Street Railway superintendent, gives warning if the cable has a broken wire. If even one of the 104 steel wires in the cable breaks, the frayed end touches the ring through which it passes and sets off an alarm. Then the cable has to be repaired with a 60-foot 'long splice' so skillfully done that the diameter of the cable is not changed at the splice."
LCSH Subjects: San Francisco (Calif.)--Photographs
Cable cars (Streetcars)--California--San Francisco
Engine houses (Railroads)--California--San Francisco
Bibliographic Number: .b10228962
Handle: http://hdl.handle.net/20.500.12352/islandora:137892