US882101A - Car-replacing wheel. - Google Patents

Description

No. 882,101. I PATENTBD MAR. 17, 1908.

v 0. T. DOUGHBRTY.

GAR REPLACING WHEEL.

APPLICATION FILED JUNE 28.1907. 1

TI E2 "ll-w IllI-III @pmc Gamma OWEN THOMAS DOUGI'lER'lY, OF MINNEAPOLIS, MINNESOTA.

CAR-RE PLACING WHEEL.

Specification of Letters Patent.

Patented March 1'7, 1908.

Application filed June 28, 1907. Serial No. 381.307.

To all whom it may concern:

Be it known that I, OWEN THOMAS DoUcn- ERTY, citizen of the United States, residing at'Minneapolis, in the county of Ilcnnepin and State of Minnesota, have invented certain new and useful Improvements in Car-lieplacing WVheels, of which the following is a specification.

My invention relates to car replacing wheels, and has for its object the construc tion of car wheels provided w ith annular projecting portions eccentrically disposed with regard to the journals.

The projecting portions are adapted to come into contact with the tread of the rail after any wheel has left the track, and, as it continues to revolve the wheel is gradually lifted until its face is in position to again roll upon the track as the car is drawn forward.

Wheels constructed in accordance w ith my invention are employed in the customary manner on each truck, and, by the use of my invention should the wheels of any truck leave the track, by reason of spreading rails or from other cause, the eccentric projecting portions will, as the car proceeds, come into contact with the top of the rail and almost immediately replace the truck, with no serious results or damage to the rolling gear in the majority of instances.

The particular car-wheel construction embodying my invention is set forth in the accompanying drawings, of which Figure 1 represents a circular side view of a Wheel constructed in accordance with one form of my invention and provided with an eccentric circular series of lugs. Fig. 2 is a similar view showing an eccentric ring or flange projecting from the side of the wheel instead of the lugs. That is a modification of my invention. Fig. 3 is an edge or face view, the wheel and rail being shown in cross section. In this view the wheel is shown having in contact with the rail the lug or that portion of the extended inner circular side of the wheel which is even with the tread of the wheel. Fig. 4 shows a vertical section through the axis of the wheel. In this view the wheel is shown as having left the rail and having the lug nearest the center of the wheel in contact with the rail. Fig. 5 is a side view of a portion of a rail. At one end of the rail a wheel is shown as off the rail and the lugs just engaging the top of the rail as indicated in Fig. 4. At the other end of the rail the wheel has been raised until it is in position to again take. the track, as illustrated in Fig. 3.

Like reference letters are employed to designate like parts throughout the description and drawings.

The rail is designated by the letter A and the wheel by the letter B. Upon the outer circular side of the wheel are the spaced lugs C disposed circularly, the center of the circle being eccentric with regard to the center of the wheel. At that point where the lugs arc furthest from the center of the wheel, they a proach and coincide with the face of the w eel, and at the point where the lugs are nearest to the center of the wheel, they are distant from the face of the wheel a little more than the height of the rail. 'lhereforc, when a Wheel leaves the track it may descend as far as the wheel has which is shown at the right in Fig. 5. If it is assumed that the wheel in that figure is moving towards the left, it will be understood that the wheel will be gradually lifted without shock until it is in position to roll again upon the track as shown. IVhere the spreading of the rails is slight, yet sufficient to let the wheel down is it is of ordinary construction, when the trucks are equipped with my invention the rapid revolution of the wheels replaces them as the spreading portion of the track is passed with hardly noticeable disturbance.

Fig. 2 represents a modification of my invention. Instead of the circular series of lugs, there is a projecting ring or flange of metal. The operation is precisely the same. The lugs and ring may Within the purview of my invention be formed integrally with the Wheel, or secured thereon. The integral con struction is preferred.

Having now described my invention and explained the mode of its operation, what I claim is 1. A car-replacing wheel comprising a carwheel having a flange on the inner side of its tread, the outer circular side of the wheel being extended and successive peripheral portions thereof being located upon the circumfercnce of a circle eccentric to the axis of the car-wheel, substantially as described.

2. A car-replacing wheel comprising a carwheel having its outer circular side provided with a plurality of extensions, the ends of said extensions being located upon a curved line and arranged at different distances from the center of the wheel, substantially as described.

3. A car-replacing Wheel comprising a carwith the tread of the Wheel and the ends of the wheel having its outer circular side provided remaining extensions being located. at difi er- With aplurality of extensions and one end of ent distances from the center of the careach extension. being .located upon the cir- 3 wheel, substantially as described.

5 curnference of circle eccentric to the axis In testimony whereof I affix my signature 15 of the car-Wheel, substantially as described. in presence of two Witnesses.

4. A car-replacing Wheel comprising a car- OWEN THOMAS DOUGHERTY. Wheel having its outer circular side provided Witnesses: 1 with a plurality of extensions, the end of one IRVING A. DUNsMooR, 10 of the said extensions being arranged even THOMAS WVA'rTs.

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