US644041A - Draft-rigging for cars. - Google Patents

Description

No. 044,041. y Patented Feb. 20, |900.

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DRAFT BIGGING FOR CARS.

(Application filed May 21, 1897.) (No Model.) 2 Sheets-Sheet vI.v

WITNESSES INVENTQR mi Nomus PEfzRs cd., PNOTOUTHQ.. WASHINGTON, D. C.

No. 644,04l. Patented Feb. 2o, |900.

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DRAFT B'IGGING FR GARS.

Q. (Applicatiog led May 21, 1897.)

(N o M o d e 2 Sheets--Sheet 2,.

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VILLIAM CASE, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE NATIONAL MALLEABLE CASTINGS COMPANY, OF CLEVELAND, OHIO.

DRAFT-RIGGING FOR CARS.

SPECIFICATION formingpart of Letters 'Patent No. 644,041, dated February 20, 1900.

Application filed May 21, 1897. Serial No. 637,548. (No model.)

To all whom t may concern:

Be it known that I, WILLIAM CASE, of Chicago, in the county of Cook and State of Illinois, have/vented a new and useful Improvement in Draft Riggings for Cars, of which the following is a full, clear, and exact description, reference beinghad to the accompanying drawings, forming` part of this specication, in which- Figure 1 is a View, partly in bottom plan and partly in horizontal section, illustrating my improved device. Fig. 2 is a vertical longitudinal section on the line II II of Fig. 1. Figs. 3 and 4 are vertical cross-sections on the lines III III and IV IV, respectively, of Fig. 1; and` Figs. 5 and 6 show in section the application of my invention to a single spring and to tandem springs, respectively.

In the drawings,2 2 represent the draft-arms, between which the draft-rigging of the car is set, and which are shown in the drawings as hollow castings, though they may be cast of any suitable shape and strengthened by ribs or anges, if desired. These arms are connected by an integral connecting plate or web 3, which extends horizontally over and at the rear end of the draft-rigging and binds both arms into a single and strong self-bracing and compact structure. The connecting plate or plates are formed with a shoulder 4, which abuts against the end sill 5 of the car, so that the end sill serves directly to brace and take up the strain upon. the draft-arms, and from this shoulder the plate extends forwardly under and in contact with the bottom of the sill, thus serving as a chafing-iron to preserve the sill from wear. The center sills 6 6 of the car fit against the marginal portions of the connecting-plate, and the said plate is formed with longitudinal shoulders 7 7 which t against the inner sides of these sills and brace the arms laterally. At the front end the draftarms extend forwardly at the sides of the draw-bar 8, inclining inwardly toward the same and serving the function which in the common construction is performed by the end portions of the wooden draft-timbers when extended along the outer sides of the draftarms. The draft-timbers 9 9 need extend no farther forward than the rear end of the draftarms, for the latter have end sockets 10 10, open at the top and outer side, into which the timbers fit. By means of vertical bolts 11 and horizontal bolts 12 the timbers in these sockets can be drawn tightly together, so as to preclude all lateral or Vertical motion of the timbers. The conjoined d raft-arms therefore constitute in effect a prolongation of the drafttimbers, and being alsofconnected together laterally by the web or plate the timbers are tied together, and a very strong and compact construction is obtained.

13 is the carry-iron, and 13' is the usual strap or frame bolted to the under side of the draft-arms.

The draft-arms above described may be employed with springs arranged in tandem or side by side or with single springs, and is so claimed.

The draft-arms are provided with opposite lateral recesses B, within which the springfollowers may move, and at the ends of these recesses are shoulders 14 15, which serve as stops or abutments-for the followers. I show in Fig. 1 of the drawings two springs or sets of springs 16 and 17, arranged side by side, and each of the followers 18 and 19 is provided with two spring-sockets C D. Each follower is made externally of a shape to fit in the conjoined recesses between the draft-arms and is a single casting. The walls of the spring-sockets extend toward each other, as shown in Fig. 1, affording an intermediate space E, within which the followers can'move; but when either follower travels to the limit of that space and engages the wall of the other follower it is stopped thereby and its further motion is prevented. The followers therefore act, respectively, as stopping devices for each other and prevent compression of the springs beyond the desired limit.

The rear end of the draw-bar 8 abuis against the front end of the follower 18, and a strap 2l extends from the draw-bar under the connecting plate or web 3 and around and back of the rear follower 19, so as to make connection therewith, though such connection may be constituted by a tail-bolt, which is the wellknown equivalent of a strap.

In bufting the draw-bar forces back the fol- IOO lower 1S and compresses the springs against the follower 19, which is then held by the rear shoulders 15 on the draft-arms, and in pulling the strap 21 draws forward the follower 19 and compresses the springs against the follower 18, which is then held by the front shoulders 14 on the draft-arms.

To connect together the draft-arms at the opposite ends of the car, I employ a long tiebolt 20, which is attached to a lug 23 at the middle part of the connected draft-arms and extends thence between the vertical planes of the center sills to a similar lug on the draftarms at the other end of the car. The strength afforded to the construction in this way will be readily appreciated by the skilled carbuilder. In the drawings I show the lug 23, situated at the top of the conjoined draftarms; but while this location is desirable and is claimed by me specifically it may be varied by placing the lug at a lower plane.

In Fig. 5 I show in cross-section the application of my invention to a single springr 17', and in Fig. 6 I show in longitudinal section its application to tandem springs 17, arranged with suitable followers. The construction otherwise will be apparent from the foregoing description.

The connected draft-arms above described may be used in repairingr old cars as substitutes for draft-arms of the ordinary type. In

such case it is necessary only to remove the old draft-arms, out olf the draft-timbers to a length proper to enter the sockets 10, and

then lift the double draft-arm casting into place from below.

Within the scope of my invention as claimed herein not only may the device be modified in construction, but elements recited in individual claims may be used.in other combinations, since I regard as new not only the construction as a whole, but many of the individual parts thereof as well.

Instead of casting the draft-arms and connecting plate or web in a single piece I may within the scope of my broad claims make them in separate parts and assemble them by bolting or riveting.

I claim- 1. Draft-arms fixed together at the top and having at the rear ends shoulders against which the draft-timbers t, said draft-arms extending forwardly from the draft-timbers and constituting a conjoined continuation thereof.

2. Draft-arms having at the top a connecting web or plate, with shoulders adapted to lit between the longitudinal sills of the car, another shoulder adapted to fit against the transverse car-sill, and a portion of the plate extending forwardly under the sill.

In testimony whereof I have hereunto set my hand.

VILLIAM CASE.

'Vitnesses:

T. H. ROBINSON, J. S. CooNLEY.

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