. American engineer and railroad journal . Railroad of New Jersey, at Jersey City, N. J., for the purposeof eliminating the delay and labor of renewing broken is designed so that it can be fitted without removing the truckfrom beneath the car and hence without the necessity of puttingthe car on the repair track. The bolt holes are slotted and a lipis provided for fitting down over the outer side of the arch barand it can be applied by simply loosening the column bolt nutsand driving the bolt up slightly to permit slipping it into place. NEW RATCHET JACK. The rapidity of operation h
. American engineer and railroad journal . Railroad of New Jersey, at Jersey City, N. J., for the purposeof eliminating the delay and labor of renewing broken is designed so that it can be fitted without removing the truckfrom beneath the car and hence without the necessity of puttingthe car on the repair track. The bolt holes are slotted and a lipis provided for fitting down over the outer side of the arch barand it can be applied by simply loosening the column bolt nutsand driving the bolt up slightly to permit slipping it into place. NEW RATCHET JACK. The rapidity of operation has made the ratchet type of jackvery popular device up to the limit of its capacity, which has. is reached, and this type of jack is usually used under this loadonly in case of necessity. Recognizing these limits, the Buda Foundry & Mfg. Co., Rail-way Exchange Building, Chicago, has designed a new ratchetjack, shown in the accompanying illustration, which has a verylarge factor of safety under 15 tons and is capable of lifting20 tons with perfect safety. The change made in this design, inaddition to the use of the best materials, heavier general con-struction and very accurate workmanship, consists of specialpawls which have triple teeth and thus divide the stress overthree teeth in the rack and produce a comparatively light strainon each. Considerable improvement has also been made in thedesign of the fulcrum pin, which has not only been enlarged andconstructed of tempered high carbon steel, but is arranged witha bearing of special design to assist in resisting the shearingstress. The lower part of the lever, through which the pin ex-tends, is arranged to contain a shoulder
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
