US2003645A - Mine car bumper - Google Patents

Description

' June 4, 1935. w. T. DALTON 2,003,645

MINE CAR BUMPER 7 Filed Oct. 17, 1934 2 sneets sneet 1 W. T. DALTON MINE CAR BUMPER June 4, 1935.

2 Sheets-Sheet 2 Filed Oct. 17, 1934 .D a 'L tOrb,

7Q A /4 2 W /7 r M T? A z w 7 q f 2 M W w r u I 7 Z Patented June 4, 19.35 V i it T D smts PATEN OFFICE,

. .....i:::::.::.:i;";.::':;:.:i:.... 90mm. (01. ass-'55) f This invention relates to improvements in car ward the other cross member, compressing the g construction and particularly to the bumper and sp n s and akin p the buillng strains. 'Likedraft ri ging of cars of'the industrial type, such wise, under draft strains one of the cross memasmine cars. bers goes solid against the fixed sills and the One object of the invention is to provide a other oss member is n a d y th va s bumper and draft rigging unit wherein bumng $1118 to compress the Springs h interposed and draft strains will be uniformly distributed. b w the we c o b the'm'evement 9 Another object is to simplify the construction the Several DBrtS vSimply b61118 t reverse to those of such'a unit whereby it may beproduced at a under bumhg Stmlnsj 1o comparatively low cost-due not only tothefacil- R f rr particularly F 8 5 and 5 t 10 ity with which it maybe assembled,'but ,1 t fixed sills l0 constitute the sides of the present the factthat a minimumof parts and material unit and located intermediate said sillsbut spaced is employed. I laterally therefrom'and laterally from each other A further object is to combine the bumper and e t e ovab e sills ll wh che rry th bump 1 draft rlsgingin a more .or less unitary assembly. I2. The several sills and the bumper maybe of 5 The invention also contemplates a combined any desired construction b Pr ly th $1118 bumper and draft rigging for mine ears wherein are made of channel cross-section, as illustrated. all wear is imposed on a minimum number of The bump r als p fe a ly has upp d partsany oneor all of which are readilyreplacelower plate-like portions each formed with openm able. r ings l3 inregistry with openlngsil'in a drawbar With these and otherfobjects'in view, the in- IS, these several openings being adaptedto re vention consists in certain details of construcceive the 'usual coupling pin. As shown, the tion and combinations and arrangements of parts, bumper serves the purpose of tying together, so all as will hereinafter -be more fully described to speak, the movable sills and the plate-like porand the novel features thereof particularly pointtions thereof engaging the flanges of the fixed edoutinthe appended claims. j sills,zunder bufl'lng" and draft strains, tend to In the accompanying drawings illustrating a steady the several parts during movement there preferred'embodimentof the present invention, of under such conditions. i

Figure 1 is a plan view of the combined bumper Extending transversely of the unit are floatin o anddraft rigging unit; I cross members i6, it. These cross members F18. 215 a side elevational view; project through elongated openings or slots i1 F18. 3 18.1% longitudinal sectional view on the in the intermediate movable sills Ii and their line 0 8- i a v endsengage inways or guides in the flxed'sllls P18- 4 18 8 milar View n the l n 4-4 01' llLsuch vways or guides being preferably con- 18- stituted by slots 18. The ends IQ of said slots 85 5 is a o t sectional v ew on the l constitute stops for limiting the movement of the 5 0 E-' a I cross members longitudinally of'the flxedsllls;

Fig. 6 is a transverse vertical section on the line The cross members are provided, t their s, 8-. f F sthis-view. and the other sectional with suitable means such as clips or locksfll for 40 views b ing taken in th dir ion ind cated by preventing accidental lateral displacement of the 40 the NW 111 the Several W cross members l6, 16. To reinforce the webs of G y, the comprises at least tWO Pairs the several sills, cheek platesll may be provided of sills. h individual s s being paced at l y on the webs of the several members. These cheek of t structure and one p ir b in ovable plates not'only tend to stiffen the webs of the 5 relatively longitudinally of the other. The fixed sills, but they also give a greater area against' sills av ways n w i h ss m b rs may sl d which the cross members it, It", abut during and these cross members engage the movable sills operation of the draft gear. At the end of the in such fashion that the latter can move relatively unit opposite the bumper, the fixed sill members to th cross members. Sp terposed beare tied together by a shield 22 which may be tween the cross members yieldingly urge them made of any desired shape, although preferably 50 away from one another,-but when buillng strains an angle bar is'utilized. One angle of said bar are imposed on-the bumper which is carried by is secured to the sills and the other angle projects the movable sills, one cross member goes solid rearwardly, as shown in Figs. 1 and 3. On the against the fixed sills while the movable sills vertical angle of said bar 22, there is attached a 66 engage the other cross member and move it toguide member 23 for the inner ends of the movable sills H. The shield 22, therefore, serves as a support for the guide 23 and, in addition, eliminates pockets inside the car body and protects the working part of the draft gear from being filled'with foreign material from the car. It also, of course, lends strength to the sill members.

As is more clearly shown in Fig. 6, the flanges of juxtaposed sills I0, I l, are directed toward each other, thus substantially forming a housing for any desired number of springs which are interposed between the cross members l6, l6", and yieldingly urge said cross members away from one another. There is a follower plate 24 abutting against each of the cross'members l6, l8, and each follower has one or more projections 25 for retaining the springs 26 between the cross members l6, It. In the present instance, there is shown two sets of two springs each, but it will be understood that the number and size of the springs can be varied at will, the over-all dimensions of the unit being the determining factor. In some instances,.dimensional limitations may require that double or nested coil springs be used,

in orderto obtain the'desiredspring strength. The follower plates shouldbe recessed as at 21 to accommodate the cheek plate 2| on the fixed sills. The corners of the follower plates may be removed to insure free action. a

With the parts in the position illustrated in Fig. 5, assuming that bufilng strains are imposed on the bumper If, the cross member l6 remains stationary, but .the cross member l6, which is solid against the endsof the slots in the movable sill members II, will. be forced toward the cross member It, thus compressingthe springs. The length of the several slots I8 is such that this movement of the cross member l8 toward member I6 is limited and said member I will come into engagement with the opposite end'of its slots in the side sills Ill before the springs go solid. Upon termination of the application. of buillng'strains to the mechanism and assuming that at the termination thereof draft strains are imposed on the gear, cross member It moves in reverse direction until it engages the forward ends of the slots in the main sills Ill and, during this movement, the other crossimember It will be engaged by the movable sill members II and urged forwardly, thus compressing the springs to take up such draft strains until it comesinto engagement with the forward endof its slots, this occurring, of course, just as in the case of bufiing strains, before the springs go solid- It will thus be seen that the present bumper and draft gear isof very/simple construction. The bumper proper lends itself favorably towards a merger with other parts, thus reducing the total number of individual parts in completing the unit. It also ties together certain members of the bumper construction and furnishes a bearing for the coupling pin. The main, or side, bumper sills I I! serve as guides for other members of the bumper unit and also as a means of securing the bumper unit to the car body. The lateral disposition of the several sills and their coordination with ,the cross members l6, l6, present an ideal construction and arrangement for the distribution of the bufilng and draft strains that are imposed upon thernechanism.

What I claim is: v

1. A combined bumper and draft rigging for mine cars and the like comprising fixed'side sills, intermediate sills movable longitudinally of the side sills, a bumper carried by the. intermediate ingly urging said cross members away from each other.

2. A combined bumper and draft rigging for mine cars and the like comprising fixed side sills,

-intermediate sills movable longitudinally of the side sills, a bumper carried by the intermediate sills, a pair of cross members each extending transversely of all said sills, said cross members being free to move longitudinally of the side sills and the intermediate sills being movable relatively to the cross members, stops on the side sills for limiting the movement of the cross members relatively to said sills, and means for yieldllzgly urging said cross members away from each 0 er.

a 3. A combined bumper and draft rigging for mine cars comprising two pairs of parallel sill members, one pair of said members being movable longitudinally of the other, a bumper carried by-said movable pair, crossmembers slidably supported by said sills, means for limiting the sliding movement of said cross members, and means for yieldingly urging said cross members away from each other.

4. A combined bumper and draft rigging for mine cars comprising inner and-outer pairs of laterally spaced parallel sill members, one pair of said, sills being movable relatively longitudinally to the other, a. bumper carried by the movable sills, transversely arranged members extending through the inner pair of sills, said inner sills being movable relatively .to saidtransverse members, guide ways extending longitudinally of the outer sills for said transverse members, and a plurality of compressible elements interposed between the transverse members. i

5. A combined bumper and draft rigging for mine cars comprising a pair of fixed sills, a pair of draftmembers movable longitudinally of said sills, a bumper carried by said draft members, a drawbar attached to said bumper, ways in said sills, cross members slidable in said ways, said draft members being slidably supported on said cross members, springs interposed between said cross members yieldingiy urging the latter away from each other, and means for limiting the movement of said cross members in said ways.

6. A combined bumper anddraft rig ing unit for mine cars comprising a pair of fixed sill members, a pair of draftnmembers, all of said members having transversely alined slots therein, a bumper carried by said. draft members, a drawbar mounted on said bumper, cross members extending through the slots in said-sill and draft members and means yieldinglyurging said cross members-away from each other, said cross members being slidable longitudinally of the sill members in the slots in the latter-and said draft members being movable relatively to said sill and crossmembers.

7. A combined bumper and draft-rigging unit for mine cars comprising a pair of fixed sill members, a pair of'draft members, all of said members having transversely alined slots therein, a

bumper-carried by said draft members, a drawbar mounted on said bumper, cross members extending through the slots in said sill and draft members and springs carried by said cross members and yieldingly urging said cross membersaway from each other, said cross members being slidable longitudinally of the sill members in the slots in the latter and said draft members being movable relatively to said cross members longitudinally of the sill members.

8. In a combined bumper and draft gear for mine cars, the combination 01' main sills adapted to be attached to the car body, laterally spaced sills intermediate the main sills and movable longitudinally of said main sills, floating cross members carried by the intermediate and main sills, springs interposed between said cross members and yieldingiy urging them away from each other, a bumper carried by the intermediate sills, an end plate connecting the main sills, and a guide means on said end plate for the movable intermediate sills.

9. In a combined bumper and drait gear for mine cars, main side sills adapted to be mounted on said car, vertically spaced flanges on said sills, a bumper slidable between said vertically spaced flanges, intermediate sill members movable with said bumper; cross members carried by said intermediate sills and movable relatively longitudinally .ot the latter, springs yieldingly urging said cross members away from each other, ways in the main sills for said cross members, said ways comprising means ior limiting the movement oi said cross members, a plate connecting the main sills at their ends remote from the bumper, and guide means on said plate for said movable intermediate sill members.

7 WILLIAMS '1'. DALTON.

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