STREET RAILROADa 



after another ail venturous trip of a runaway car on 

 Broadway. " In this acndmt." says the 

 Ami i . car behaved a> iii the other case 



that is to say, it was carried along the trm k irre- 

 sistibly, and' the gripraan was unable to release the 

 grip so as to stop the car. Aft. r the power house 

 baa been signaled and the engine stopped, an ex- 

 amm . the con. hi it showed that 



one of the ' thr cable bad been broken. 



rigidly attached to a crosshead on the track frame 



;cul -hank- of plate steel. M M. 



:* always curried t a lixed le\el. The upper 



jaw, 1 ed by a shank. 1.. which i.- ra;-.-.i ..r 



depressed by the action f I. ...1 to the 



crosshead and < . i he -ripman. 



' jaws are each provided with t\\<> l-.n-itmli- 

 nl grooves, so that the cable may IT taken up mi 

 either side of the grip. \\ h- n the ear i- 



' 



and the cable, in hiding through the grip, pushed the cable run- in in the lower jaw, 



back the strand until I..TWI feet ,.f .t had been piled the car is started by depressing the upper jaw and 



KCKKl) CAK. 



up upon the cable, the strand th laek 



upon the cable occupying a space of -''<> feet be- 

 hind the grip. 



-Thisaccidei. i delay of >.-v.-ral hour-. 



There was no remedy for the delay, a- the span- 

 cable had not U-en laid in the conduit. Traffic had 

 to be suspend ed until the cable could be put into 

 running condition, which was done by removing 

 the loosened -fraud." 



slou S,M^| Cable ( ..r I. rip. The adoption of 



vice shown in this article f<r |N-rinittin^ tfie 



reduction of cable-car sjx-.-d .,u ( -ur\.- i- the out- 



cotne of popular agitation in I < ity !.- 



nmndin^ an adequate remedy f..r > iigers 



at several places along the lir'oadway rout.-, noiahly 



e curve, corner of liroad Powrteentb 



Street, where the cars turn into I'tiion S. 



" remedies were numerous, -<>m< pnictical. 



many impracticable for ..in- ,,r m..n- n-a- 



Tbe remedy ultimately chosen meets every re- 

 quirement, and can be applied at will. - Th 

 struct i< -it <f the onlinury forn -ar grip is 



such thai if a stop is made in the middle of a curve 

 and Uw cable is released it will I, av,. tin- -rip and 

 spring toward the center of the curve. II. : 

 order to traverse a runre the griptnan taken a firm 

 bold oa the cable an ; e nert 



tangent at full ",^-d. This full speed is much 

 greater than iallowe,i forcanwitirintfeeefty liniits. 

 and is so rapid as to be extremely dangerous to pe- 

 d. -tnan- at the , -P .1 



In the illustration snowing per* f -^p. 



with retaining h.ioks attacherl. - the parts marked 

 II II are loose hook*, which keep the cable in the 

 grip when the upper jaw, B. is raised to release the 

 cable. The grip consists of a lower fixed jaw. C, 

 and an upper movable jaw, H. The lower jaw is 



the ruble. fcl 



h-d by the pn ure of the grip. At full speed 

 the cable i- held perfect ly si at ioiiary in t IM 



aad at slower speed it ie allowed U> sUp soaewhac, 



the car bring carried along by the friction between 

 the jaws and the cable. 



"The cable i- thrown out of the grip altogether, 

 or Mripped.' by rai .pi.' .f wrdge> whirli 



i fried by link-. K. bracket. 1'. and the two 

 plate-. K I 1,-vi-r 



on the ear. Tin- plate-. K K. an pro\ ided witli 

 Stops, which, a- the plates are lifted, engage the 

 shank. L. and rai-e the top jaw. 1',. 



"The trouble with the old form - that 



when the up|K-r movable jaw. H. was rai-ed when 

 traveling a curve the cable would spring out to the 

 in-ide of the curve and be 'lost.' To remedy this 

 the hook-. II II. who- that 



of t he upper jaw. B. are him- by link-. < J. to 1 1, 



:id-. and ' i'ti<-al 



unit than the jaw. When the latter i- r 

 sufficiently to release the cable, the hook-. II I 

 main down in place and k able from 



( oiiipn-xM-il \ir a- a Moii\e I'owrr. T! 

 -s<>d air as a motive power for < ii 

 face roads was brought [.rominently t. notice in 

 arjy part of 1804 by use of that sy-tem for 

 propul-ion on the Nantes tramways and on the line 

 from Paris to No-reni-^i. the latter 



line < h ! -ted storage reser- 



voirs fixed underneath the ear body, containing air 

 at a pressure of HK)p<.und- to 17<5 pound- per -<| I)art ' 

 inch. Three of the reservoirs form a re-ervc in cases 

 of erner-ency. The air is heated on it- 

 the motor by 1 which at .starting has a 



temperature of 300 1 . 



