US498329A - Fourths to jerome f - Google Patents

Description

(No Model.)

W-TOMPKINSQ I DRAW BAR FR CARS.

Patented-Maj s01893.

Unire STATES A'rnNr anion.

GEORGE W. TOMPKINS,'OF CHICAGO, ILLINOIS, ASSIGNOR OF THREE- FOURTHS TO JEROME F. VARES, OF SAME PLACE;

DRAWBAR FOR CARS.

SPECIFICATION Aforming part of Letters Patent No. 498,329, dated May 30, 1893.

Application led December 15, 1891. "Serial No. 415,103. (No model.)

To all whom it may concern:

Be it known that I, GEORGE W.'I`oMPK1Ns, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Drawbars, of which the folfollowiug is a specification.

My invention relates to draw-,bars forrailway cars, and has reference more particularly to improvements in the draft mechanism by which the draw bar proper is held securely to the draft timbers, with capability of going and coming sufficiently to relieve the shock of buffing or of a sudden draft.

The great difficulty' with draw-bars as heretofore constructed has been, that the lugs against which the follower plates of the drawbar proper abut, and which are usually bolted to the inner sides of the draft timbers, are incapable of withstanding severe buffmg of the cars withoutfracturing or snappingod the bolts which hold them'to the timbers;

The prime object of my invention therefore, is to so construct and arrange and secure the said lugs, as to make themv practically as strong as' the follower plates themselves so as to be capable of withstanding even unusually severe shocks.

With this ultimate end in view, my invention consists in certain features of novelty in the construction and arrangement of parts as hereinafter fully described with reference to the accompanying drawings and more particularly pointed out in the claims.

In the said drawings-Figure l, is a plan view of the draft timbers showing .my improvement appliedv thereto. Fig. 2, is a longitudinal sectional View of the same taken onv the line 2, 2, Fig. l, showing one of the timbers and the lugs with their tie-straps in side elevation, and Fig. 3, is a perspective view showing the relative positions of certain parts l hereinafter more fully explained.

In the drawings, A, A, represent the draft timbers of any usual construction, between the inner ends of which is securely clamped a solid block B, whose under side, as well as the under sides of the timbers A, A, is cut away on the profile shown in Fig. 2, for the attachment of the transom. This block B, extends from the rear or aft lugs, which will be presently described, to the tail ends of the draft timbers, and is securely held in place by means of transverse bolts which pass through it and the timbers, thus forming a Iirm abutment for the rear lugs, and 4making the timbers practically of a solid piece at their tail ends. I

Arranged between the timbers A, A, at their forward ends, is the draw-bar proper D, of any well-known and suitable construction, upon the king bolt E, of which are sleeved two follower plates F,G, and between these plates upon said bolt E, is located any suitable form of draft spring H, the bolt E, being held against withdrawal from the follower plate G, by means of a tail pin I, in the ordinary manner. Arranged fore and aft the follower plates F. G, are lug castings K. L, respectively, secured to the inner side of each of the draft timbers by means of transverse bolts M. Each of these lugs as more clearly shown in Figs. 2 and 3, is provided with two countersinks or depressions N, through which are formed ythe horizontal bolt holes O, for the passage of the bolts M, such countersinksV being preferabh` of sufficient depth to wholly receive the heads of the bolts M, so that the latter will be flush with the face of the lug in order that they may not be struck by the draw-bar proper.

P, are tie-straps which pass from the tops of the fore lugs to the tops of the aft lugs respectively, and are secured to such lugs by 'means of vertical bolts Q, which pass through them and through each end of each of the lugs, and also through similar tie-straps R, passing from the bottom of the fore lug to the bottom of the aft lug the horizontal bolts being arranged between the vertical bolts whereby the one set of bolts will reinforce the other when either bufng or draft strains are produced. These tie-straps as shown in Fig. 2, are preferably bent over at their ends so as to form angular bends S, which embrace the corners of the lugs and relieve the bolts Q, of considerable strain. The tie-straps, however, if desired may be formed of asingle piece as-shown in Fig. 3, passing from the fore lug over and under that is to say, around the rear lug and back againV to the under side of the fore lug, and being secured to each lug by means of two bolts Q, as in the form shown in Fig. 2. This change simply involves the connecting loo together of the angular bends where they pass around the lugs at one end, as shown on the right in Fig. 3-such union of the angular bends being preferably eifected by forming the two straps integrally. The follower plates F, G, iitbetween the upper and lower tiestraps on both sides, and are adapted to abut against the fore and aft lugs K, L, respectively, and thus impart movement to the draft timbers.

In order that the lugs K, L, may be held with greater security against longitudinal movement, I provide each of them With an upright cleat or key T, formed integrally therewith and fitting in complementary seats or sockets formed in the inner faces of the draft timbers.

Arranged on the under sides of the draft timbers, preferably midway between the lugs K, L, is a tie-bar or brace U, which extends transversely of the draft timbers, and is secured thereto by means of vertical bolts V. This bar U, not only greatly stiffens the draft timbers at this point, but serves for the further purpose of holding the draft springs up into position with their coils concentric with the openings in the follower plates, when the king bolt is withdrawn for repairs.

'lo prevent the follower plates from wearing into the draft timbers, I provide each of the latter with a'chaiing plate W, let into it so as to be iinsh therewith, and being secured in place by means of screws or bolts as shown.

\Vitl1 a draw bar thus constructed, the Strain of pulling or buiing is distributed uniformly throughout the entire length of both the fore and aft lugs, and it is very simple and durable and easily applied without necessitating any change in the construction of the draft timbers or draw-bars proper now in use.

Having described my invention, what I claim, and desire to secure by Letters Patent, 1s-

1. In a draw-bar, the combination with the draft timbers and the draw-bar proper arranged'between said timbers and having a follower plate thereon; of lugs secured to said draft timbers fore and aft said follower plate,

and tie-straps securing said lugs together, and passing around one of them substantially as set forth.

2. In a drawbar, the combination with the draft timbers, and the draw-bar proper arranged between said timbers and having a follower plate thereon; of lugs secured to said draft timbers fore and aft said follower plate, and tie straps formed integrally and passing around one of said lugs and being securedto the upper and lower edges of the other, substantially as set forth.

3. In a draw bar, the combination with the draft timbers, and the draw-barproper having a follower plate thereon; ot' lugs secured to the draft timbers fore and aft said follower plate, tie-straps extending from the upper and lower edges of the fore lugs along the upper and lower edges of the aft lugs having angular bends engaging the outer edges of said lugs, and bolts passing through said tiestraps and lugs, substantially as set forth.

4. In a draw bar, the combination with the draft timbers, the draw bar proper arranged between said timbers and having a follower plate thereon and lugs secured to said draft timbers fore and aft of said follower plate, of tie-straps securing said lugs together, having angular bends engaging the outer edges of said lugs at one end, and being bent around said lugs at the other end, substantially as set forth.

5. In a draw-bar, the combination with the d raft timbers, and draw-bar proper having the follower plates thereon, and a spring between said follower plates; of lugs secured fore and aft of said follower plates, tie-straps secured to said lugs, and the cross-brace U, passing under the spring and being secured to said draft timbers, substantially as set forth.

6. In a draw bar, the combination with the draft timbers, the draw bar proper having follower plates thereon, and lugs secured to said draft timbers fore and aft of said follower plates, of a solid block arranged behind the aft lugs and being securely bolted between the draft timbers, `substantially as set forth.

7. In a draw bar, the combination with the draft timbers, the draw-bar proper having follower plates thereon, and lugs secured to said draft timbers fore and aft said follower plates; of the cross-brace U, connecting the timbers together between said fore and aft lugs, and a solid block arranged against the aft lugs being securely bolted between the draft timbers, substantially as set forth.

8. In a draw bar, the combination with the draw bar proper having follower plates, and the draft timbers, of the two pairs of fore and aft lugs secured to said timbers respectively, each of said lugs having a vertical boltv hole through each of its ends, and a number of horizontal bolt holes arranged between said vertical bolt holes, bolts passing through said horizontal bolt holes and the draft timbers, tie straps arranged on the upper and lower sides of said lugs, and bolts passing through said tie straps and vertical bolt holes, substantially as and for the purpose set forth.

GEORGE W. TOMIKINS. Witnesses:

R. C. OMOHUNDRO, F. A. HOPKINS.

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