US734638A - Truck-bolster. - Google Patents

Description

PATBNTED JULY 28, '1903.

o. VANDBRBILT.

` TRUCK BOLSTBR. APPLICATION FILED JULY 2B. 1902.

N0 MODEL.

WITNESSES:

me Nunms varias co, PHoroLm-ao. wAsmNsm No. 'yemas'.

'Patented July 2s, 190e.

PATENT OFFICE.

CORNELIUS VANDERBILT, OE NEW YORK, N. Y.

TnUoK-BoLsTEu.

I SPECIFICATION fornng part of LettersPatent No. 734,638, dated July 28, 1903.

Application filed July 26,1902. Serial No. 117,073. (No modelf;

To a/ZZ' whom it may concern:

Be it known that I, CORNELIUS VANDER- BILT, a resident of the borough ofManhattan, city and State of New York, have invented certain newand` useful Improvements in specification.

Certain features of the inventionherein set Truck-Bolsters, ofwhich the4 following is a forth and claimed are broadly claimed in myv application, Serial No. 110,139, filed June 4,

`a side elevation, partly in section, and Fig.

3 an endelevation, of one form of truck-bol ster embodying my invention. Figs. 4 and 5 show, respectively, a plan and a side elevation, the latter partly in section, of a modified or alternative form of truck-bolster.

In both of the forms of truck-bolster described in this application and shown in the accompanying drawings the bolster usually consists of a single casting preferably, though not necessarily, of cast-steel. The center bearing l, side bearings 2 2, and column-` guides 3 3 are all integral with the body of which in the forms shown comprise top and bottom webs 4 and 5 andfront and rear walls 9 9, thus forming a hollow beam. The upper and lower webs being con-A also that in both forms of bolster the depth, as well as the width, of the bolster diminishes from its center toward its ends. By this construction a bolster is produced 4of V.minimum weight, since a large amount of metal is dispensed with, thereby lessening the initial cost, while at the same time a strong bolster i ,continuous at their centers, thus giving the ,bolster greatest strength at its center, where the stresses are greatest, the parts 1l performing the functions of struts between the upper web 4 and the lower web 5.

In both forms of truck-bolster herein illustrated the top web 4 and the bottom web 5 unite at both ends to form the webs 6 6.

It will be observed that the point of junction of the webs 4 and 5 is beyond the side bearing 2-that is to say, at that portion of the bolster upon which the side'bearings arelocated the top and bottom webs are separated from each other. This feature gives the bolster much greater strength to resist `the stresses transmitted by the side bearings than would be the case if the side bearings were located above or beyond the place of union of the webs 4 and 5, where there is but a single web. The ends 7 7 of the webs 6 6 are turned down, as shown, for the purpose of forming recesses or pockets 8 8, within which the ends of the springs upon which the bolster rests are held against displacement. The front and rear walls t) 9 are joined at the top and bottom to the upper and' lower Webs 4 and 5, as shown, and preferably extend the entire length of the bolster, joining the parts 7 and forming front andrear walls for the recesses 8.l

The central portion of the bolster maybe, and preferably is, strengthened by the vertical partitions 12 and 13, (shown in Figs. 4 and 5;) but'these may be omitted,` if desired. 1n case they are used, however, it will be evident that those portions of the side IOO walls 9 9 which are between the upper and lower webs 4 and 5, asillustrated in the drawings, may be dispensed with, if desired.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-

1. A truck-bolster, comprising top and bottom webs, which are widest at their centers and taper toward their ends, said webs being united at their ends, and separated at their intermediate portions, transverse braces between said intermediate portions, and a longitudinal brace uniting said transverse braces, substantially as described.

2. A truck-bolster having top and bottom webs gradually converging untilv they unite at their ends, said ends being turned downward, transverse braces between the webs intermediate their united ends, and a longitudinal brace uniting said transverse braces, substantially as described.

3. Atruck-bolster, comprising top, bottom, front and rear walls, and side bearings, said top and bottom walls being united at their being turned downward, substantially as de-f scribed.

5. A truck-bolster, comprising side bearings with spaced walls, and top and bottom Webs separated at their centers and gradually converging toward their ends until they unite, said ends being united beyond said side bearings, substantially as described.

6. A truck-bolster, comprising side bearings with spaced walls, and top and bottom webs separated at their centers, and gradually converging toward their ends until they unite, said ends being united beyond said side bearings, and the ends of the united portions being turned downward, substantially as described.

7. A truck-bolsterhaving top, bottom, front and rear walls and side bearings, said top and bottom walls being united at their ends beyond said side bearings to form horizontal webs, the ends of said webs being turned downward, the said front and rear walls extending from one of said downturned ends to the other -downturned end, substantially as described.

In witness whereof Ihave hereunto signed my name this 21st day ot' July, 1902.

CORNELIUS VANDERBILT.

In presence of Louis ASHEPARD, WILLIAM W. CLoUsER.

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