USRE13889E - Walter e - Google Patents

Description

W E GOFFIN GOUPLING SHANK AND YOKE CONNECTION.

APPLICATION FILED FEB, 2,1915.

Reissued Mar. 9, 1915.

,originar No. 1,097,533,

WALTER. E. COFFIN, 0F CLEVELAND,

UHIO, ASSIGNR TO THE NATIONAL MALLAILE CASTINGS COMPANY, 0F CLEVELAND, OHIO, .A CORPORATION OF OHIG.

COUPLING-SHANK AD YOKE CONNECTION. f

T0 all whom it may concern Be it known that I, WALTER E. COFFIN, of Cleveland, Cuyahoga county, Ohio, have invented a new and useful Improvement in Coupler-Shank and Yoke Connections, of which the following is a full, clear and eX- act description, reference being had to the accompanvingr drawings, forming part of this specification, in whichl Figure 1 is a view, partly in side elevation and partly invertical section, of a device embodying my invention; Fig. 2 is a plan view of the same; Fig. 3 is a view partly in side elevation and partly in vertical section, showing a portion of the device on a larger `scale than in Fig. 1; Fig. 4 is a plan view of a portion of the device, showing means for locking the connecting .pin or bolt; Fig. 5 is a plan -view of the rear end portion of the coupler shank and showing a slight mod'- iication thereof, and Fig. 6 is a vertical `connecting pin or section of the rear end portion of the coupler shank.

My invention has relation to means of improved character for connecting the coupler shanks of car couplers to draft rigging yokes, and is designed to .provide a simple and convenient -form of connection in which the parts can be readily disconnected either by a straight rearward movement of the yoke or by a forward movement of the coupler shank, in order to facilitate/ear repairs, as hereinafter more fully described.'

In the accompanying drawings. the numeral designates the yoke, which is of the usual U-form. open at its forward end. Both forward ends of the yoke'are inthe form of enlarged bosses greater vertical depth than the thickness of the arms of the yoke, so as to provide a substantial bearing area for the body of the bolt 4. Extending forwardly from each of the bosses 3 is a flange or ledge 5, which is rounded at its forward edge to aradius whose center is coincident with the center of the pin or bolt 4. These ledges or flanges are overlapped b v upwardly and rearwardly extending lips 6,

which are formed at the upper and lower sides of the rear end of the coupler shank. and Whose rear edges are similarly rounded Specication vof Reissued Letters Patent.

3, which are of.

Rcis'sued Mar. l), 1915.

dated May l, 1914, Serial No. 667,346. .application for reissue le 'February 3,

1915. Serial Na. v

so that the yoke is free to have an angular movement relative to the coupler shank moving about the pin or bolt #i as a'pivot. The purpose of the lip and ledge engagement of the shank and yoke is to prevent the two Aarms of the yoke, which are not connected at their forward ends, from spreading, and thereby throwing so great a bending moren ment upon the pin or bolt as to cause it to bend'. y

The parts can be readily asernbled., and the construction is a very convenient one :in facilitating ear repairs. After removing the pin or bolt 4, the yoke and coupler can be disengaged either by a straight rearward movement of the yoke, ,or by a forward movement oi the coupler shank. This enables the draft gear to be disengaged and dropped down from the car frame Without lremoving the coupler entirely from its posi- Ition, and simply by sliding the coupler forrward to an extent suilieient to disengage il; from the yoke.V4

7 designates a bushing for the pin or bolt, seated in the rear end portion rof the'coupler shank. To prevent the pin from turning, its head may be flattened on two sides. and

these fiat sides engaged by lugs or lips 8,

as shown in Fig. 4.

ln Fig. 5I have shown aslight modification. in which the rear end portion 9 of the coimlershank is of tapered or aring form.

That I claim is: In ak coupler shank and yoke connection, a draft rigging yoke having upper and lower armsz a vertical portion connecting' said arms at their rear ends,l the forward end s of said arms having enlarged bosses of greater vertical depth than the thickness of the arms; nin-holes in said bosses: a cou pler-shank adapted to angle laterally with said voke and to seat between said bosses and having a pin-hole registering with the holes in said bosses, the bosses being rounded at their forward ends; projections on the top and bottom of the coupler shank, having concave vertical faces. said projections being adapted to'overlie said bosses and prevent soi-ending of the arms: plane longitudinal bearing surfaces upon thetop and bottomof the coupler-shank to the rear of said con `cave vei'tcai faces; and engaging plane 1onf gtudinaliy-extending bearings onthe inner faces of said bosses, whereby longitudinal movement of eithelyoke or couplet-shank, 5 after removal of the pin, will permit the disengagement of said coupler.

In testimony whereof, I have hereunto set my hand this 25th day of January, 1915.

WALTER E. COFFIN.

HARRY E. 0R11, HUBERT L. SPENCE.

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