US724633A - Bolster. - Google Patents

Description

'UNITED STATES PATENT OFFICE.

v [JOHN C. WANDS, OF ST. LOUIS, MISSOURI.

SPECIFICATION forming part of Letters Patent No. 724, 33, dated April 7, 1903;

Application filed December 18, 1902. Serial No. 135,801. (No model.)

To all whom it may concern.-

Be it known that I, JOHN C. WANDS, a citizen of the United States, residing at St. Louis, Missouri, have invented a cortainnew and useful Improvement; in Bolsters, of which the following is a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, forming part of this specification, in which Figure l is a top plan view, partly broken away. Fig. 2 is a side view, partly in vertical section. Fig. 3 is an isometric perspective view of one head-block shown cast upon the end of the tension member. Fig. 4 is an end View of one head-block, and Fig. 5 is a plan view of one end of a tension member.

This invention relates to a new and useful improvement in bolsters designed for use as transoms or truck-bolsters, as maybe desired.

The object of the invention is to provide a light and strong bolster with 'a head-block which is cast upon the tension member in one integral piece, so as to form in the finished bolster an integral end-portion adapted to receive the compression member.

Referring to the drawings, 1 is the compression member of the bolster, in the form of a channel slightly cambered at its middle portion and provided with the downwardly-depending flanges 2.

3 is the tension member of the bolster, in the form of a fiat plate. 4 represents headblocks cast upon the ends of said tension member; but as both ends of the bolster are provided with head-blocks identical in form, for convenience only one will be described herein. 7

Upon the lower face of the head-block are spring-seats 5, above which the block is cored out at 6, the openings thereof extending to the end of said head-block, which is provided in casting with the vertical members 6 there being a plurality of such members, as illustrated in Fig. 4, wherein are shown two, though three or more may be provided, if desired. The head-blocks are also provided at their upper side with shoulders 7, against which abut the ends of the compression member 1, while vertical side channels 8, between the outer walls 9 and the central portion 10,

upon which restthe ends of said compression member, are provided for the flanges 2 of the compression member, the ends of which com.- pression member are preferably flush with thehead-block, as best shown in Fig. 2, the head-block thus forming a thrust-block to take up end thrusts of the said compression member. Projecting-upwardly from the face .10 are lugs 11, adapted to fit into correspondhead-block is cast upon theend of said tension member in such manner thata portion of the metal of said head-block fills the openings 12 of the tension member and the parts are held firmly together thereby, the end portion of the tension member extending well within the head-block and preferably at such angle with relation to the compression member that lines drawn longitudinally through the tension member and compression member will meet within the head-block.

13 is a strut or king-post secured in position between the compression and tension members and provided with a passage therethrough for the king-bolt.

14 is a central bearing riveted to the upper face of the compression member, and side bearings (not shown) may be secured to the compression member, if desired,while bolster column-guides 15 are provided at each side of the head-block.

I am aware that minor changes in the construction, arrangement, and combination'of the several parts of my device can be made and substituted .for those herein shown and described without in the least departing from the nature and principle of my invention.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, isv 1. In a bolster, a compression member, a tension member provided with a series of openings therethrough, and head-blocks cast on the ends of said tension member with a portion of the metal thereof within the axial line of said tension member; substantially as described.

2. In a bolster, a compression member of channel form, a tension member formed of a fiat metal plate provided with a series of openings therethrough, and head-blocks cast on the ends of said tension member with a portion of the metal thereof within the axial line of said tension member; substantially as described.

3. In a bolster, a compression member, a tension member provided with a series of openings therethrough, and head-blocks cast on the ends of said tension member with a portion of the metal thereof within the axial line of said tension member, the said compression member and said tension member being so disposed within said head that a line ,drawn longitudinally of the compression member to the outer edge of the head-block will intersect a similar line through the tension member, within said head-block; substantially as described.

4. In a bolster, tension and compression members, a cast-metal head-block formed upon the ends of the tension member thereof and having integral retaining-lugs thereon, engaging the compression member, a chamber formed in said head-block below the tension member, and a spring-seat below said chamber; substantially as described.

5. In a bolster, tension and compression members, a cast-metal head-block formed upon the ends of the tension member thereof and having a seatin its upper portion for the compression member, upwardlyextending retaining-lugs thereon, a chamber formed in said head-block below the tension member, and a sprin -seat below said chamber; substantially as described.

In testimony whereof I hereunto afiix my signature, in the presence of two witnesses, this 16th day of December, 1902.

JOHN G. WANDS.

Witnesses:

G. A. PENNINGTON, FREDERICK I-I. GIBBS.

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