US1380301A - Mine-car coupling - Google Patents

Description

I. MARTIN.

MINE CAR COUPLING. APPLICATION FILED FEB. 28. 1921.

Patented Maya, 1921.

ISAAC MARTIN, or PITTSBURGH, PENNSYLVANIA.

MINE-GAR COUPLING.

Specification of Letters Patent.

Patented May 31, 1921..

Application filed February 28, 1921. Serial No. 448,704.

To all whom it may concern:

Be it known that I, IsAAo MARTIN, a citizen of the United States, residing at Mount Oliver, Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented new and useful Improvements in Mine-Car Couplings, of which the following isa specification.

This invention relates to coupling devices, and more particularly to a couplingspecially adapted for use in connection with mine cars.

One of the main objects of the invention. is to provide a coupling of simple construction and operation which may be applied to mine cars for coupling the same together. A further object is to provide a coupling so constructed as to eliminate possibility of accidental uncoupling of the cars. Another object is to provide a coupling so constructed as to be well adapted to withstand the strains to which it is subjected in use. Further objects will appear from the detailed description.

In the drawings:

Figure 1 is a top plan view of a coupling constructed in accordance with my invention as applied.

Fig. 2 is a side view of the same.

Fig. 3 is an underneath view of the coupling.-

The coupling includesa body 1 of substantially elliptical outline which is formed of spaced side plates 2 each provided on its outer face with a loplgitudinally extending reinforcing rib 3. ooks 4 are pivotally secured by stud bolts 5 and nuts 6 between the plates, these bolts also serving to secure the plates together. Each of the hooks is provided with a hill 7 of substantially threequarter circular shape, the point 8 of this bill being disposed in substantial parallelism with body 4 of the hook. The bills 7 are adapted for engagement through links 9 inserted through loops 10 secured to the draw bars of the cars to be coupled.

Normally the tension on the hooks 4 serves to hold body 1 in substantial horizontal position and in alinement with loops 10, as illustrated. In the event that the cars tend to move together, the body 1 of the coupling member will be lowered out of alinement with the loops, the hooks 4 turning about stud bolts 5. As will be noted, these hooks are positioned closely adjacent to each other so that when turned into substantially vertical position they contact, the bills of the hooks being disposed vertically and remaining in engagement about links 9. This effectually prevents accidental uncoupling of the cars and when the cars again move apart the coupling member is returned to its original position in which casual displacement of the links from the bills of the hooks is prevented by the ends of body 1.

Plates 2 are provided in their upper portions with alined hand holes 11 to facilitate application and removal of the coupling.

The coupling constructed in this manner may be readily applied or removed and may be quickly and easily produced at small cost while being of sufliciently strong construction to effectively withstand the severe strains to which it is subjected in use.

What I claim is In a device of the character described, a body, and two oppositely disposed hook members pivoted in said body adjacent to the ends thereof and adapted for engagement through links secured to the draw bars of adjacent cars, said hooks being so relatively positioned within the body as to contact with each other when raised into substantially vertical osition.

ISAAC MA TIN.

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