US1480630A - Car truck of the six-wheel or three-axle type - Google Patents

Description

Jan. 15 1924. v

C. L. ORR ET AL CAR TRUCK OF THE SIX-WHEEL 0R THBEE AXLE 'IYllil Filed Jan. 18 1923' 2 Sheets-Sheet 1 wucntoz:

Jan. 15, 1924.

.C. L. ORR ET AL cm TRUCK or THE SIX-WHEEL 0R THREE-AXLE TYPE Filed Jan. 18,

1923 2'Sheets-Sheet 2 lll llll Patented Jan. 15, 1924.

UNITED STATES PATENT OFFICE.

CLAUDE L. ORB AND GEORGE '1. JOHNSON, OF COLUMBUS, OHIO, ABSIGNOBS TO THE BUCKEYE STEEL CASTINGS COMPANY, OF COLUMBUS, OHIO.

CAR TRUCK OF THE SIX-WHEEL OB THREE-AXLE TYPE.

Application filed January 18, 1923. Serial No. 613,440.

To all whom it may concr'rn 7 Be it known that we, CLAUDE L. ORR and Gnonon T. JOHNSON, citizens of the United States, and residents of Columbus, in the 5 county of Franklin and State of Ohio, have invented certain new and useful Improvements in Car Trucks of the Six-Wheel or Three-Axle Type; and We do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

Our present invention relates to car trucks of the six wheel or three axle type and par- 1 ticularly to that form of six-wheel truck in which there are three equalizin members, each having an axle box, and a side hearing or bridge member connecting the truck bolsters and arranged at the outer side of the equalizing members. While these trucks have been operated successfully and have proven satisfactory, it has been found that sometimes the bolster-connecting bridge member would rock laterally and eventually lose its alinement, assuming a ermanent inclination inwardly or outwar ly relative to the side of the truck. It is the object of the present invention to provide a construction whereby the bridge will be connected to the bolsters in such a manner as to prevent the lateral rocking and maintain the alinement of the bridge member throughout the life of the same. This object and other incidental objects which will appear in the course of the following description are attained in the construction and arrangement illustrated in the accompanying drawing and hereinafter fully set forth.

In the drawing, Figure 1 is a planview of one side of a truck embodying our present improvements;

Figure 2 is a side elevation of the same;

Figure 3 is an enlarged lan view of the bridge member, the centra portion thereof being broken out and omitted;

Figure 4 is a side elevation of the bridge member, the central portion being broken out;

Figures 5 and 6 are detail plan views of ends of the truck bolsters.

The sides of the truck are duplicates in construction and each comprises two end equalizing members 1 and 2, and a central equalizing member 3, the end members being offset to form long arms which overlie and are pivotall I connected with the relativel far ends 0 the central member 3. Eric membcr carries a journal box 4 for an axle 5 and the end members are also constructed with seats 6 for springs 7 on which the ends of the bolsters 8 rest. The bridge member 9 is disposed at the outer side of the equalizing side frame members and is constructed at its ends with depending jaws 10 which span the ends of the respective bolsters and snugly embrace them so thatno bolts or other means of attachments are needed to secure the bolsters and bridge together. By reference to Figures 3, 5 and 6, 1t will be noted the jaws of the bridge member present end edges 11 and 12, and that the bolsters are recessed on their sides, as at 13, to receive the jaws of the bridge and present vertical shoulders 14 and 15 to oppose and form guides for the edges or faces 11 and 12 respectively. It will also be noted, upon reference to Figure 1, that the parts are so proportioned that the edge or end portions or faces 12 of the bridge form guides for the outer sides of the equalizing members or side frames. The guides for the inner sides of the side frames are furnished by the vertical shoulders 16 on the bolsters.

It will be readily noted upon reference to Figures 1 and 2 that the shoulders 14 and 15 on the bolsters provide guides for the bridge which extend the full height of the bolsters and efl'ectually resist any tendency of the bridge to rock transversely of the truck so that the alinement of the brid e is maintained and all needed flexibility 1n the truck is retained. The construction of the bridge and the bolsters is such that they effect an interlocking engagement so that the bridge cannot get out of alinement.

Having fully described our invention what we claim as new and desire to secure by Letters Patent, is 1- 1. In a six-wheel truck of the type described, the combination of the bolsters and a bridge engaging the ends of the bolsters and interlocking with the latter, whereby the use of bolts or similar means of attachment other than the interlocking connection is obviated.

2. In a six-wheel car truck of the type described, the combination of bolsters having recesses in their sides, and a bridge proyided at its ends with depending jaws to engage in said recesses whereby to maintain its alinenient. i

3. In a car truck of the type described, the combination of a bridge member having depending jaws at its ends, and bolsters fitting between the'jaws and having spaced vertical shoulders to engage the end surfaces of the jaws.

4. In a car truck of the type described, the combinationof a bridge member having depending jaws at its ends, and bolsters fitting between the jaws and provided at their outer ends with guides for the jaws whereby to maintain the alinement of the bridge.

5. In a car truck of the type described including equalizing side frames, the combination of bolsters passing transversely through the side frames, and a bridge engaging the ends of the bolsters, the inner side of the bridge constituting guides for the side frames of the truck.

6. In a car truck of the type described including equalizing side frames, the combination of bolsters engaged transversely in the side frames, a bridge engaged over the ends of the bolsters and constituting guides for the side frames, and guides or the bolsters for the bridge maintaining the alinement of the bridge. I i

In testimony whereof, we hiu'esigned this specification 1n the presence of two subscribing witnesses.

CLAUDE L. ORR. GEORGE T. J OHNSON Witnesses:

JACOB C. LARSEN, JOHN S. MGPrmnsoN.

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