US1239651A - Draw-bar carry-iron. - Google Patents

Description

C. T. WESTLAKL DRAW BAR CARRY RON.

APPLICATION men SEPT. 30. 1915.

PatentedSept. 11, 1917.

lm mfr C/ldf/fj [Mai/Me r" ""1 II V UNITED STATES;

CHARLES T. WESTLAKE, OF ST.

LOUIS, MlISSOURI, ASSIGNOR T0 FLORY CARRY IRON COMPANY, 01' ST. LOUIS, MISSOURI, A CORPORATION OF DELAWARE.

DRAW-BAR CARRY-IRON.

Speclficatlon ot Letters Patent:

Patented Sept. 11, 1917.

Application filed September 80, 1915 Serial No. 53,880.

To all whom it may concern: 7 4

Be it known that I, CH RLES T. Wne'r- LAKE, a citizen of the United States, residing at the city of St. Louis, State of Missouri. have invented a certainnew and useful Improvement in Draw-Bar Carry-Irons, of which the following is a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, forming part of this specification.

his invention relates to certain new and useful improvements in draw bar carry iron for railway cars. and specifically is an improvement on the form of carry iron disclosed in my l 9. Letters Patent No. 1,125,- 420 granted January 19, 1915.

In the said Letters Patent is discloseda carry iron in the nature of a roller provided with eccentric trunnions at its ends which are mounted to roll on suitable supports, thus providing a roller support for the draw bar. The eccentric disposal of the trunnions ua'xis of the rarrv iron enables it to be disposed so that it will support the draw bar at different elevations, depending upon whether or not the carry iron is disposed with its maximum radius above or below the bearing point of the, trunnions upon the support.

My present invention has for its objects the provision of means which will insure the rolling operation of the carry iron under the butting and pulling movements of the draw bar, whichwill facilitate the centering of the carry iron on its support, and which will prevent the complete overturning of the roller.

out hereinafter,

In the accompanving drawings in which of a bolt 8, which,

Other objects will be obvious or pointed that the carry iron is shown in its inverted or high position;

ig. 4 is a 'rspeetive of the carry iron or roller; and

Fig. 5 is a perspective detail of one of the su ports.

eferring to the drawings in detail, it will be understood that the numeral 1 indicates a casting shaped to form a striking plate and-adapted for attachment to the end sill or dead block of a car. This striking plate is formed with depending supports 2 havins, inwardly presented horizontal ledges 4 adjacent their lower extremities. These supports 2 are apertured for the reception as is readily apparent from the drawing, and as will be understood .from my patent above referred to, is adapted to retain the carry iron or roller in position. A

This carry iron comprises a main body portion 5 having circular lugs or trunnions 6 at its ends. The roller has one curved bearing'face 5" which may be concentric with the trunnions, and a high hearing face. 5" which is on a considerablv greater radius so that it is further spaced apart from the axis of the truunions than is the low bearing face 5. As illustrated. these'bearing faces are disposed substantially opposite each other. The roller is formed with a longitudinal interior channel 7 of considerable width.

Formed on the supporting ledges 4 are up standing lugs 9, and provided in the tron-i nious 6 are apertures 10 of suitable size and shape to receive the lugs 9 when the tram nions are resting on the supporting ledges 4. In each of the trunnions one of these apertures 10 is disposed diametricallv opposite to the low bearing face 5, and another is disposed diametinnilv opposite to the high bearing face 5. When the roller is placed in operative position, the trun nions rest upon the supporting ledges 4, so that the lugs 9 register in the lower apertures 111a The bolt or pin 8 is then inserted through the a ertures in the supporting members 2 and the central channel 7 0f the roller. If it is iron in the lower position, the low bearing face 5 is disposed uppermost, while if it desired to supportthe carry l bar and the supports, thus permitting the movement of the draw bar with the least possible friction between the arts.

Due to the engagement 0 the lugs 9 1n the apertures 10, the carry iron is prevented from slippin on the supporting ledges l, as possibly might occur under certain conditions. Such slipping of the roller on the supports would result in its being displaced to the limit of its movement, or until the side of the channel 7 were brought up against the bolt 8. In this displaced position, it will be seen the roller would be incapable of any further movement in the same direction, and hence would cease to function as a roller-support. It will readily be seen how the interengagement of the roller and supports by virtue of the pro ections and apertures 9 and 10 obviates this undesirable possibility, as this interengagement holds the roller against sliding movement on the supportin ledges, with the result that it is compel ed to roll under all conditions. Thus relative displacement of theroller and its supports is prevented, and they will always bear the proper relationship, depending, of course, upon the position of the draw bar.

These interengaging portions on the suports and roller have a further valuable unction in that they provide meansrwhereb the roller may be properly centered when 1t is inserted, as the registering of the interengaging portions placesthe selected bearing surface in proper osition; furthermore,

the construction maintains the roller in roper alinement with the supports.

A still further function of this construction is that of preventing the overturning of the roller in case it is freed from pressure of the draw bar. It canbe seen how, if unhindered, the roller would naturally assume the position with the high bearin face down ward. When positioned with t e high bearjng face upward, theiroller is prevented whereb from overturning by the inter-engaging portions in coiiperation wlth the bolt 8, as when the roller reaches the limit of movement allowed by the bolt 8, the interenga ement of the projections 9 and apertures 1 will prevent its further rotation I am aware that the device illustrated and described is capable of various modifications, and that my invention is susceptible of embodiment in forms other than that herein disclosed.

What I claim is: I

1. A draw bar supporting device comprising a carry iron for supporting the draw bar, said carry iron being provided with trunnions at its extremities, supports spaced apart longitudinally of the carry iron and providing supporting surfaces upon which said trunnions are disposed to rock, means associated with the supports and the carry iron to limit the movemen of the latter to prevent its disengagement om the former, each support and its associated trunnion being provided with. interengaging portions the carry iron is maintained in proper alinement relative to the supports and held against sliding movement thereon.

2. A draw bar supporting device comprising a carry iron provided with terminal trunnions, supporting members spaced apart longitudinally of the carry iron and affording supporting surfaces upon which said trunnions are disposed to rock, said carry iron including a portion extending ecccntrically relative to the axis of the trunnions and arran ed for rocking coiiperation with the draw a1, said supports and trunnions being provided with interengaging portions adapted to maintain the carry iron 1n alinement relative to the supports and to'hold said parts against relative sliding move ment, and'a retaining member adapted for engagement with the carry iron to limit its rocking movement on theisupports, said retaining member coiiperating with said interengaging ortions to maintain the eccentric portion. oi the carry iron inoperative position relative to the sup orts.

In testimony whereo I hereunto afiix my signature in the rcsence of two witnesses, this 12th day) of uggst, L915.

HARI S T. WESTLAKE. Witnesses:

HAL C. Bannvnm, O. S. BUTLER.

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