. Electric railway gazette . In the accompanying illustrations Pig. 1 showsa side view of an improved form of street car truckdesigned by J. L. Levy of New York City, andFig. 3 is an enlarged side elevation of the end ofthe truck showing the auxiliary spring used. Among the specifio improvements claimed inthis design of truck Is a nest, or series of springslocated between an extension of the truck frameand the car body, or a like extension of the upperchord (If one is used). This nest of springs com-prises those which are adapted to come into playsuccessively as the car body sinks down; that i
. Electric railway gazette . In the accompanying illustrations Pig. 1 showsa side view of an improved form of street car truckdesigned by J. L. Levy of New York City, andFig. 3 is an enlarged side elevation of the end ofthe truck showing the auxiliary spring used. Among the specifio improvements claimed inthis design of truck Is a nest, or series of springslocated between an extension of the truck frameand the car body, or a like extension of the upperchord (If one is used). This nest of springs com-prises those which are adapted to come into playsuccessively as the car body sinks down; that isK) say, these graduated springs are intended tosupplement the usual car springs which are gen- , /^ ^iss^ JTD-. PIO. 1. CAB JACK. of the dynamo twice within fourteen seconds,during which the five-cent piece remainedbalanced on the cylinder head, showing the com-bination to be operating without noticeable vibra-tion. There are now between 30 and 40 HarrlsburgIdeal direct connected electric combinations insuccessful operation, nearly everyone of whichwas installed by the New York representatives ofthe Harrsburg Foundry and Machine Works, Fleming & Co., 303 Broadway, New York,and 630 Atlantic avenue, Boston. THE ACME CAB JACK. THE HILL SWITCH. rigidity, and keep all of the blades in properalignment while the switch is being operated. Bythe old method of securing the blades to the yoke(to which the handle is attached) by a single boltor screw In each blade, there was nothing to pre-vent the twisting of the blades, thus allowing oneto move in advance of the other, and as the twoor more poles would not break in unison, excess-ive flashing would result. To overcome this de-fect and produce a
Size: 2059px × 1214px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, bookidelectricrail, bookyear1895
