US496249A

US496249A - Otis l

Info

Publication number: US496249A
Authority: US
Publication date: 1893-04-25
Anticipated expiration: 1910-04-25

Description

UNITED STATES PATENT OFFICE.

OTIS L. DUNFEE, MONROETON, PENNSYLVANIA.

VEHICLE BOLSTER-PLATE.

SPECIFICATION forming part of Letters Patent No. 496,249, dated April 25, 1893. Application filed December 22, 1891. flerial No- 415,893. (No model.) i

To all whom it may concern.-

Be it known that I, OTIS L. DUNFEE, a citizen of the United States, residing at Monroeton, in the county of Bradford and State of Pennsylvania, have invented certain new and useful Improvements in Bolster-Plates for Vehicles; and I do 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 usethe same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

My invention relates to improvements in wagon bolster-plates, and consists of the pe-' culiar construction of the plates as hereinafter described and shown, and has for its object the production of plates that better subserve the purpose for which they are used than those now in use, and also to prevent the bolsters and sand-boards to which they are attached from splitting from the strains to which they are subjected while in use. I e

I illustrate my invention by the accompanying drawings, in which like letters represent like parts throughout.

Figure 1, represents a top plan view of a portion of a wagon bolster with myimproved bolster-plates attached thereto, and Fig. 2, represents a side view of portions of abolster and a sand-board of a wagon with my improved bolster-plates attached thereto. Fig. 3, is a central, vertical, longitudinal section of a portion of a bolster and sand-board, and the bolster-plates thereon, showing a side view of the vertical bolts, the section being taken on line X, X, Fig. 1.

A, is a top plate secured to B, is the bottom plate secured to the sandboard D.

F, is the king-bolt.

a, (1, indicate flanges or ears extending upward from the plate alongside of the bolster, and b, b, corresponding flanges extending downward from the lower plate alongside of the sand-board.

d, d, are horizontal bolts passing through the flanges a, a, and bolster C.

e, e, are horizontal bolts passing through the flanges b, b, and sand-board D.

the bolster C. I

ss V

in the plate B, so that they shall be flush with its upper surface, so that the plate A, shall slide over them without friction. The plates are corrugated in a circle about the king-bolt, the upper one being a counter-part of the lower. The sides of the plates opposite the king-bolt and between the flanges project laterally in a circular form, as indicated in Figs. 1, and 2.

By reason of my flanges being constructed so Wide as to extend over and beyond the surfaces of the bottom of the bolster and top of the sand-board, and by reason of being provided with the circular projections between the flanges opposite the king-bolt and the raised portions 0, c, and g, g, I obtain a large flat bearing for the bolster-plates, and thus prevent the bolster from tilting as it moves backward and forth around the king-bolt, and

What is true of the advantages of my bolster'plate as attached to the wagon bolster, is also correspondingly true of the lower plate as attached to the sand-board of the wagon. I provide the upper bolster-plate with an oiling hole a, which communicates with the cir-. cular corrugated surface around the king bolt, so that the plates are conveniently oiled to prevent friction.

Having thus described my invention, what sponding corrugations on plate 13, plate B hav- 1 claim, and desire to secure by Letters Pating flanges to embrace the sand board, subent, is-- stantialy as described.

In combination with a bolster, sand board In testimony whereof I affix my signature in 5 and king boll; of a wagon, bolster plates A, presence of two witnesses.

and B, plate having a flat upper surface on which the bolster rests, a central large circu- OTIS D UN F lar face, flanges a, a, embracing bolster, said Witnesses: face on its under side provided with circular C. T. SACKETT, [o corrugated projections to engage with cone I/VILL IV. MYER.