US826871A - Railway-car truck. - Google Patents

Description

N0- 826,871. BATENTED JULY 24, 1906. S. OTIS.

RAILWAY GAR TRUCK. ABPLIOATION FILED Dno.ze,1eo5.

UNITED STATES PATENT OFFICE.

SPENCER OTIS, OFCHICAGO, ILLINOIS, ASSIGNOR TO NATIONAL PATENT HOLDING COMPANY, OF RAPID CITY, SOUTH DAKOTA, A CORPORA- TION OF SOUTH DAKOTA.

RAlLWYAY-CAR TRUCK.

Specicaton of Letters Patent.

Patented July 24, 1906.

To all whom it may concern.-

Be it known that I, SPENCER Oris, a citizen of the United States; residing at Chicago in the county of Cook and State of Illinois,

have invented certain new and useful Improvements in Railway-Oar Trucks, of which the following is a speciiication.

My invention relates to railway-car trucks, and has for its object to improve and sim- IO pliy the construction thereof, whereby the parts are strengthened and the truck rendered more efficient.

`In the accompanying drawings, Figure 1 is a side elevation, partly in section, of one I 5 end of a car-truck embodying my invention; and Fig. 2, an end elevetion, partly in section, taken on line 2 of Fig. 1 looking in the direction of the arrow.

Referring to the drawings, a represents the zo upper'arch-bar or compression member of a car-truck, l) the tie member, and c lower end bars having substantially horizontal ends c and a substantially horizontal intermediate portion c2, secured to the compression and tie members, as by bolts d, d', and d2, all as is usual and well known.

It will be understood that both ends of the truck are alike. I have illustrated, therefore, but one end and will describe only this end.

3o The arch-bars are formed of channeled metal,

as shown. This adds strength to these memf bers. Resting in the outer end c oi the channeled lower arch-bar c and upon the journalboX casting is a supplementary brace c, hav- 3 5 ing an upturned outer end e', against which the ends of the lower arch-bar and the upper arch-bar or compression member bear. `This supplementary member has also a downturned inner end e2 resting against the side of 4o the journal-box casting. Bolts d and d pass through the upper arch-bar, the lower archbar, the brace member, and the journal-box casting and are properlyl secured thereto by nuts or otherwise to-securely hold the parts togethero It will beseen that the strain upon the upper-member arch-bar is a compression strain tending to carry the end of this member outwardly in the direction indicated by the arrow in 'Fig'. 1. This strain is usually wholly 5o taken up by the bolts d and d; but by the use of the supplementary brace member, having upturned and downturned ends, as described,

I provide a means wherebya part oi this compression strain is taken by the upturned end 5 5 c of the supplementary brace, thus relieving the bolts of a part of the strain. It will also be seen that I provide a longer and better bearing for the bolts by the use of this supplementary brace member. My invention, therefore, though simple, is of great efficiency in strengthenin the parts of the truck, ren dering it more urable in service.

I claim- 1. The combination in a railway-car truck having the usual journal-boxes, of a compression member, a channel tension member,

a supplementary brace member resting in the channel brace member, said supplementary brace member having a downturned inner 7o end bearing against the journal-box, and an upturned outer end bearing against the ends of the compression and side brace members.

2. The combination in a railway-car truck having the usual j ournal-boXes, of a compression member and a channeled tension member, a supplementary brace member resting inv the 'channel brace member, said supplementarybrace member having a down-4 turned inner end bearing against the journal- 8o box, an uptuined outer end bearing against the ends of the compression and side brace members, and bolts passingthrough the compression, tension, both brace members and journal-box casting for securing the parts together.

SPENCER OTIS. Witnesses:

ANNA L. SAvoIE,

JENNIE A. MAcEDwAnD.

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