US595617A

US595617A - Thomas m

Info

Publication number: US595617A
Authority: US
Publication date: 1897-12-14
Anticipated expiration: 1914-12-14

Description

(No Model.)

T. M. GALLAGH'ER. 1 GAR'TRUGK. No. 595,617.

UNITED v STATES PATENT Enron.

THOMAS M. GALLAGHER, OF ST. LOUIS, MISSOURI, ASSIGNOR TO THE SHIOKLE, HARRISONv da HOWARD IRON COMPANY, OF SAME PLACE.

CAR-TRUCK.

SPECIFICATION forming part of Letters Patent No. 595,617, dated December 14,1897.

Application led May 24, 189'?.v Serial No. 637,863. (No model.)

To all whom it may concern:

Be it known that I, THOMAS M. GALLA- GHER, a citizen of the United States, residing at the city of St. Louis, in the State of Missouri, have invented a certain new and use ful Improvement in Oar-Trucks, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification.

My invention relates to a car-truck frame consisting of side or -pedestal members and a cross or transom member, these parts being preferably formed of cast-steel. Each one of these three members is made in the form of anI-beam, so that each has a compression and a tension member united by a strengthening-Web.

My invention consists in features of novelty hereinafter fully described, and pointed out in the claims. y

Figure I is a top or plan view illustrative of my invention, part of the transom member being shown in section. Fig. II is a side view, partly in section. Fig. III is a front view. Fig. IV is a vertical section of the transom member, taken on line IV IV, Fig. I. Fig. V is avertical section of one of the side members, taken on line V V, Fig. I. Fig. VI is a an upward direction.

horizontal section of one of the side members, taken on line VI VI, Fig. II, and looking in Fig. VII is a vertical section taken on line VII VII, Fig. I.

Referring to the drawings, l represents one of the side members ofthe truck-frame, and 2 the other side member.

3 represents the cross or transom member of the frame.

4 are the axle-boxes, itting in the pedestals 5, that form part of the side members l and 2. Above the pedestal-openings that receive the boxes 4 are recesses or chambers 6, that form seats for the axle-box springs 7. Each side member is made in I-beam form-that is to say, with an upper or compression chord 8 and a lower or. tension chord 9, these two chords being connected by a strengtheningweb l0, thus providing a maximum amount of strength with a minimum amount of weight. In like manner the transom or cross member 3 is composed of a top or compression chord 11 and a bottom or tension chord l2, connected by a web 13. The transom is provided with the usual center bearing 14 and side bearing l5. The ends 16 ofthe transom fit against the inner faces of the webs of the side members of the frame, as shown in Figs. I and VII, and are secured thereto by bolts 17. The ends of the transom occupy the entire space between the compression and tension chords of the sides of the frame, as shown in Fig. VII, and they have shoulders 18, fitting against the inner edges of the compression and tension chords, as also shown in Fig. VII.

Toassist the bolts in holding the transom from horizontal movement with relation to the side'members of the frame, I provide the webs of the latter with ears or lugs 19, between which the ends of the transom fit, as shown inv Fig. I. By forming the cross or transom member with integral end 16, that fit up against the webs'of the side members, so as to be bolted thereto, a very rigid and strong frame is produced, and this rigidity and strength are further added to by the transom member having the shoulders 18, that receive the edges of the top or compression chords of the side members. The integral ends of the transom member it snugly between the upper and lower chords of the side members, as shown in Fig. VIII, and rest upon the lower chords, the result being that there is no shearing strain on the bolts 17,

that connect the ends of the transom member to the webs of the side members, the transom member being held by the upper and lower chords of the side members either from vertical `movement or from a twisting or torsional movement. *I

The side members and the transom are, as stated, preferably made of cast-steel, and the structure as a whole is strong and durable, as Well as comparatively light.

I claim as my invention- 1. A car-truck frame, consisting of side or pedestal members of I-beam form, and a cross or transom member; said cross member having integral ends resting upon the lower integral chords of the side members and formed to t against the webs of the side members and bolted thereto, substantially as set forth.

IOO

2. A oar-truck frame, consisting of side or or tension member, said.y cross member havpedestal members of I-beam form, a cross or ing integral ends formed to It between and transom member; said cross member having bear against the upper and lower integral integral ends formed to fit against the Webs chords of the side members,and to bear against 5 of the side members and bolted thereto, and the Webs of the side members to Which they i 5 having shoulders 1S that fit against the inner are bolted, substantially as set forth.

edges of the upper or compression Chords of THOMAS M. GALLAGHER. the side members, substantially as set forth. In presence of- 3. A oar-truck frame, consisting of side or E. S. KNIGHT,

ro pedestal members of I-beam form, and a cross E. C. MOORE.