US1253088A - Spring draft-rigging. - Google Patents

Description

J. F. OCOIJNORn SPRING DRAFT HIGGING.

APPLICATION HLED Aue.25.1916.

Patented Jam. 8, MMS.

INVENTOR. 'Ja/Q11 FM@ MJU JOHN F. OCONNOR,

0F CHICAGO, ILLINOIS, ASSIGNOR T0 WELLIMPI MMWR, 0.?

CRAZY, NEW YORK.

SRING DRAFT-RIGGING.

il ,253,tl88.

Specification of Lettere tratent.

Patented dan.. t, 1918.

Application :filed August 25, 1916. Serial No. 116,772.

To all whom, it may concern."

Be it known that l, JOHN F. OCoNNon, a citizen of the United States, residing at Chicago, in the county of Cook and State .of Illinois, have invented a certain new and useful Improvement in Spring Draft-Rigging, of which the following isa full, clear, concise, and exact description, rference being had to the accompanying drawings, forming a part of this specification.

This invention relates to improvements in spring draft rigging.

One object of this invention is to provide a spring draft gear which may be cheaply manufactured and easily applied and wherein the pulling and buliing shocks are transmitted to the sills of the car by means of a single fixed key.

In the drawing forming a part of this specification, Figure 1 is a vertical longitudinal section of a portion of adraft rigging showing my improvements in connection therewith. Fig. 2 is a horizontal sectional view taken substantially on the line 2 2 of Fig. l and showing the parts of the draft rigging in Anormal position. Fig. 3 is a transverse, vertical sectional view taken substantially on the line 3-3 of Fig. 1. And Fig. 4 is a broken detail view'of the forward portion of one of the yoke arms.

In said drawings, 10-1O denote channel shaped center or draft sills of a car between which the parts of the gear are mounted. The gear proper preferably comprises a front follower 11, rear follower 12, vertical twin arranged springs 13-13 separated by aA spacer block 14, the under draft by means of a horizontal yoke A. The gear proper is held in position by means of a tie plate 15 which is detachably connected to the lower flanges of the sills by means of clips 16 and bolts 17.

The front follower 11 is prevented from forward movement by means of a fixed, horizontally extending wide key 18 mounted in correspondingly shaped slots in the sills 10-10, the front follower 11 normally engaging the rear edge of said key 18. As also appears from Fig. 2, the key 18 passes through suitable slots provided in the side arms of the yoke A.. Each of the side arms of the yoke A is slotted at its forward end in the manner most clearly indicated in Fig. 4.- Each slot comprises a rectangular 'portion 19 with a rearwardly extended, centhe rearward gear being operated trally located narrower portion 20, the latter being to accommodate the forward movement of the yoke .d on the fixed key 18, as will'appear from an inspection of Fig. 2. The draw bar 21 has the butt thereof transversely slotted, the slot comprising a wide section 22 near the center, a forwardly eX- tended narrower section 23 which permits movement of the draw bar relatively to the fixed key 18, and a rearwardly extended narrower section 2i to accommodate the key 18 and permit forward movement of the draw bar. 'l he wider portion of the slot in the draw bar is provided to accommodate two narrower keys 25 and 26 arranged respectively above and below the fixed key 18. Said keys 25 and 26 pass through the enlarged portions 19 of the slots in the arms of the horizontal yoke and normally engage against the forward edges of said slots. The yoke arms are preferably provided with laterally extended reinforcing flanges 27 at the forward ends of the slots therein and against which the keys engage. As clearly indicated in Fig. 2, the upper and lower portions of the slotted butt end of the draw bar are connected by a rectangular brace 28 which is accommodated in an elongated slot 29 in the'key 18. The sides of the draw bar are provided with reinforcing fianges 30 surrounding the slot in the draw bar, the shape and contour of said reinforcing ianges being clearly illustrated in Fig. l.

As shown in Fig.'3, the keys 25 and 26 are of similar construction and each has a flanged end 31, thekeys, when inserted being oppositely arranged as shown in Fig. 3, `whereby' the flanges 31 overlap the ends of the fixed key 18. The keys 25 and 26 are maintained in position by any suitable means such as the cotters ,32-32.

In operation, upon buthng movement, the yoke A is prevented from rearward movement since it engages the fixed key 18. Consequent] y, the rear follower 12 is prevented from rearward movement by the yoke A and as the draw bar moves inwardly over the fixed key 18, the rear face of the draw bar butt will engage and operate the front follower 11, thus compressing the springs. The amount of compression is or may be limited by the spacer 14, the length of which can be varied as desired. In draft, the front follower 11 is held stationary by the xed key lll@ readily assembled and disassembled and mayy be employed in standard sill spacing. Furthermore, the gear proper may be inserted and removed from below .without disconnect- -ing or disturbing the draw bar and yoke.

I claim:

1. In a draft rigging, the combination with a draw bar, a yoke, and shock absorbing mechanism within the yoke, of two movable keys, and a fixed key, all of said keys extending transversely through the draw bar and the yoke, the fixed key acting aslfa front stop for said mechanism and prevent ing rearward movement ofthe yoke, the movablekeys connecting the draw bar and yoke under draft.

2. In a draft rigging, the combination with a shock absorbing mechanism including a front follower and a rear follower and a horizontal yoke, of a fixed key arranged to prevent forward movement of the front follower, said key being extended through slots in the arms of said yoke and arranged to prevent rearward movement of the latter, but permitting forward movement thereof, and means for operatively connecting said yoke with the draw bar under draft, said means including a pair of keys located one directly above and the other directly below said fixed key. a

3. In a draft rigging, the combination with a draw bar and a horizontally arranged yoke, of means for operatively connecting the draw bar and yoke under draft, shock absorbing mechanism insertible from below and between the arms of said yoke, and

means for preventing rearward movement of the yoke whereby the latter acts as a rear stop for the shock absorbing mechanism, said means including a fixed key passing through a slot in the draw bar.

4. vIn a draft rigging, the combination with a draw bar, and shock absorbing mechanism including a front follower against which the butt of the draw bar normally bears, a fixed key extending through the draw bar and also normally engaging said frontfollower and preventing forward movement of the latter, and means connect ed with the draw bar for actuating the shock absorbing mechanism under draft, said means acting as a rear stop through the intermediary of said xed key under buff. 5. In a draft rigging, the combination with draft sills, a fixed key extending horizontally -between said sills, a horizontal yoke slidable forwardly with respect to said key, but prevented from rearward movement thereby, shock absorbing mechanism insert.- ible from below between the arms of said yoke, said key acting as a front stop for the shock absorbing mechanism under draft, a draw bar, and means operatively connecting the draw bar and yoke under draft, said means comprising a pair of keys slidable with respect to the fixed key.

6. In a draft rigging, the combination with a draw bar, a yoke, and shock absorbing mechanism, of three transversely extending keys all located forwardly of thev shock absorbing mechanism, certain of said keys being fixed and adapted to prevent rearward movement of the yoke and act as a front stop for said mechanism, the remainder of said keys being movable and adapted to operatively connect the yoke and draw bar under draft.

In witness that I claim the foregoing I have hereunto subscribed my name this 22nd day of August, 1916.

JOHN F. OCONNOR.

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