US882147A - Bumping-post. - Google Patents

Description

110.882,14?. l PATENTBD 111111.17, 1908.

G; HOPSON.

BUMHNG POST.

APILIGATION PILEDAJULY l, '1907.

Snowdon PATENT OFFICE.

GEORGE HOPSON, Ol? DICKSON, TENNESSEE.

BUMPING-POST.

Application filed July 1. 1907.

To all whom it may concern:

Be it known that l, Geenen HoPsoN, a citizen of the UnitedStates, residingI at Dickson, in the county of Dickson and State ol Tennessee, have invented new and useful Improvements in Bumping-Posts, et which the following is a specification.

This invention relates to lnlmping-posts.

The object of the invention is to provide an apparatus of this character which shall be thoroughly effective in receiving and absorbing ars due to impact between it and a railway car, and in such manner that no damage will accrue to either from a blow. Furthermore, 'to construct and assemble the parts of the post in such manner as that they shall be best adapted for resisting strains, and for remaining in operative condition for an extended period, irrespective ol atmospheric or other conditions.

With the above and other objects in view, as will appear as the nature oi the invention is better understood, the same consists in the novel construction and combination oi parts of a bumpingpost as will be hereinafter fully described and claimed.

ln the accompanying drawings forming a part of this specification and in which like characters of reference indicate corresponding parts, Figure 1 is a view in perspective of a bumping-post constructed in accordance with the present invention. Fig. 2 is a top plan view. Fig. 3 is a Aliront elevation.

The bumping-post embodies a base comprising two sill beams 1 and Z connected near their forward ends by an interposed cross beam 3 and near their rear ends by a superposed cross beam a. Secured, in this instance, eXteriorly o'l the sill beams are two standards or upright-s 5 which are stayed and rendered rigid by pairs of angularl y disposed brace bars 6 and 7 which are secured respectively to the sill beams and to the upper portions of the uprights. To the front edges of the uprights are secured two guide' bars S and Q that not only subserve the vfunction that their names indicate7 but also the lurther function of bracing the uprights against liability oi yielding to lateral strains. Each of these guide bars is provided with an oriliee in which work slide rods 10 that are secured in any suitable manner to a bumper or bull'er 11. Secured to the builer v11 is a plunger 12,

l rear portion oi which is provided with e bars 13 that are adapted to work in Specification of Letters Patent.

Patented March 17, 1908.

Serial No. 381,685.

orifices in a guide bar 14 secured betwe n the rear brace bars, and held against liability oi'` yielding to downward pressure by a pair or' uprights 15 rigidly secured to the sill beams 1 and 2 and to the brace bars. T he guide bar 141 is further braced against liability of yielding to impact by an angularly disposed brace bar 16, one end oi" which is secured in any suitable manner to the guide bar 14 and the other end to the cross beam 4.

Mounted upon the two sets ol: slide bars 10 and 13, and adapted to engage respectively with the bu'll`er and. the guide bars 8 and 9 and rear portion of the plunger and guide bar 11 are coiled springs 17, which may be constructed to present any desired resistance to shocks, whereby to render the apparatus thoroughly ellicient in use.

ln order to guide the buil'er in movements, and also to relieve strain from the slide bars and the parts with which they coact, the lower end oli' the bull'er is provided with ajlin 1S that is adapted to engage a groove 19 in a bar 2O secured respectively to the cross beams 3 and 4. It will be seen by reference to F ig. 3 that the coaction between the [in 18 and the groove 19 will be such that any tendency on the part of the plunger' to have lateral movement as from strains or shocks will be positively precluded so that lighter slide bars may be employed than would otherwise be required.

As shown in Fig. 2, the rear end of the plunger is bilurcated to lorm two arms, each oi which is adapted to carry one of the slide bars 13, and this arrangement is adapted lor the purpose el reducing weight ol the plunger, but it will be apparent that this is not essential, as the plunger may be made solid throughout and still be in the scope ol` the invention.

lt will be seen from the foregoing description that although the improvements herein defined are simple in character, that they will cooperate in the production ol a thorougly e'llicient bumping-post, and further that provision is made whereby destructive strains will be prevented.

' That l claim is:

1. A bumping-post comprising a base, uprights carried thereby, guide bars carried by the uprights and provided with openings, a

l plunger carrying slide bars engaging openings in one ol' the guide bars, a buil'er carried by the plunger and having slide bars to engage the openings in the other guide bars, and springs carried by the slide bars to retain the bumper in yielding position.

2. A bumping post Comprising a base, guide bars su ported upon the baseI a springoontrolled pfiinger Carrying slide bars extending through one of the guide bars, and a spring-controlled buffer carried by the plunger and having slide bars extending through the other of the guide bars.

3. A bumping post comprising guide bars, supporting means therefor, one of said guide bars arranged forwardly of the other, a plunger carrying slide bars extending through the rearward guide bar, a buffer carried by the plunger and having slide bars extending through the forward guide bar, and oompression springs mounted upon the slide bars.

4. A bumping post comprising a base, guide bars supported upon the base7 a springoontrolled plunger carrying slide bars extending through one of the guide bars, a

upon the rearward extensions of the plunger and the rearward extensions of the buffer, combined with supporting means.

In testimony whereof I aflix my signature in presence of two witnesses.

GEORGE HOPSON. Witnesses:

WILL HALL, B. G. PETTY.

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