US115261A - Improvement in car-trucks - Google Patents

Description

y iti Which- UNI'rEDS'rArEs PATENT 'OEEIcE ""EEUBEN winsLow, on Loox HAVEN, PENNSYLVANIA, AssreNoE 'ro HIM.

SELF `ANDEEUBEN wINsLow PETEIKAN, 0E sAME PLAGE.

l WIM PRovEM ENT IN `CAR-TRUCKS.

i l Specification forming part of Letters Patent No. 115,261, datedMay 23,1871.

" .To all whom 'it may concern:

`Be it knownthat I, REUBEN WrNsLoW, of

State` of Pennsylvania,` have invented a new f and Improved Railroad-Gar Running-Gear; i andI do hereby declare the following to be a full, clear, and exact description of the same,

referencebeing.had` to the accompanying drawing,inaking a part of this specification,

Figure l is a side elevation of a truck. Fig.

i 2 is an end view; Fig. 3, a partial top view.

Fig. 4 is aside view `of oneof the axle-boxes A', the suspending-bands b, and the sustaining-bar c. the line B C, Fig. l, and Fig. 6, a horizontal section in the line E F, Fig. l.

This invention has for its object to adapt the journal-bearings of the axles of a car-truck to oscillateor have a fore-and-aft motion, for

l the twofold purpose of practically increasing the diameterlof the outer' wheels when passing around a curve, and also enabling the locomotive to moreeasily overcome the inertia of acar or train of cars at starting, or when the speed is increased during the `movement of the same.

` To this end I; provide journal-boxes or blocks, connected -with the lower part of the pedestals of a truck by means of straps or The journals of the axles of these wheels enter boxes A. The boxes A are provided with side anges, a, which enter correspond ing grooves n, made in the inner sides of `the f. pedestals 1whichin`close said boxes on the i top and at each side.

Elliptical bands b inclose the boxes A inside of the pedestals d. Both the pedestalsfcl and the boxes A rest on short bars e, which are placed 011 theA long barsic' e', `extending from one axle to the otherat each side of the truck, and forming, in conjunction with braces g, supportingframes.

`Through these `bands b pass bars c-i. e., between the bands and bars e e-and thus i form the sole means of" supporting the weight Fig. 5 is a longitudinal section inof the car. This, however, leaves the boxes A' free to vibrate fore and aft within the pedestals d independently of each other.

When a car provided with running-gear of the above-described construction passes from the tangent ot'` a curve upon the curve itself, the anges of the outer wheels naturally seek the outer rails, and the ilanges of the inner wheels are consequently drawn correspondin gly away from the inner rails, as in ordinary trucks; but the axles being suspended in independently adjustable bearing-blocks, they assume a position approximating parallelism with different radiuses of the circle, ,and the outer wheels may thus approach closer to the outer rail of the curve than they could otherwise do. Thus the diameter of the outer wheels is practically increased, and that ofthe inner correspondingly diminished. It therefore results that the binding and excessive friction ordinarily attending the passage of cars around a curve are obviated or reduced to a minimum in. my invention.

While the axles of the same truck may not always be perfectly parallel to different radiy uses of a curve, they will, as before stated,-

tend to approximate them. In this they are aided by the flanges of the outervwheels crowding againstthe outer rail of the track, so that the tendency is to throw the inner wheel some` what backward.

It is also evident that when a train composed of a locomotive and one or more cars provided with my improved running-gear is started, the inertia of the cars will lirst be overcome independently of the axles and wheels, and the slight momentum thus acquired be transmitted to them. 4This advantage is one ot' the minor results of my invention, but practically of considerable value in the wear and teanof rollingstock l Having thus described my invention, what l claim as new, and desire to secure by lietters Patent, is

A car-axle having the car or truck frame suspendedupon it in such a manner as to enable the axle-boxes to lvibrate fore and aft, substantially as specified.

EEUBEN wINsLow.

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