US502380A - Thill-coupling - Google Patents

Description

(No Model.)

' G. W. POST.

THILL' GOUPLING.

No. 502,380. Patented Aug. 3.

UNITED 'STATES PATENT OFFICE.

GEORGE POST, OF FOND DU LAC, WISCONSIN.

THlLL-COUPLING.

SPECIFICATION forming part of Letters Patent No. 502,380,dated August A1, 1893. Application filed February l, 1893. Serial No. 460,533. (No modela .To a/ZZ whom it may concern.-

Be it known that I, GEORGE W. POST, a resident of Fond du Lac, in the county of Fond du Lac and State of Wisconsin, have invented certain new and useful Improvements in Thin-Couplings; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same. p

My invention relates to an improvement in thill couplings,-the object of the invention being to construct the device in such manner thatthe thills will be automatically held in an upright position when it is desired.

A further object is to so construct a thill l `coupling in such manner that a single spring will be employed for preventing the rattling of the thills and holding the same in an upright position when raised.

With these objects in view the invention consists in certain novel features of construction and combinations and arrangements of parts as hereinafter set forth and pointed out in the claims.

In the accompanying drawings: Figure lis a view illustrating my invention, showing the thills raised. Fig. 2 is Va similar View showing the-thills in working position. Fig. 3 is a detail view of the spring.

A represents an axle, to which the clip B is secured. From the clip B, two arms or ears B project, and between these the iron C of the thill D is mounted, said thill iron being provided with a curved recess a, for a purpose which will be presently explained. A spring D is insertedbetween the ears or arms B of the clip, and provided Vwith shoulders b, to project above and below said arms 'ofr the thill iron, where it is provided with.

a curved knob or enlargement ct', adapted,

when the thill isf raised, to enter the curved .recess ain the thill iron` C, and thus retain materially aecting the functions of the def vice.

The device above described is exceedingly simple in construction, cheap to manufacture and effectual in the performance of its functions.

Having fully described my invention, what 'I claim as new, and desire to secure by Letters Patent, is-

l. The combination with a clip, and thill iron adapted to be attached to the clip, of a springthe ends of which are approximately parallel with each other and adapted to beinserted between and bear outwardly against the clip and the ihill iron, and one end of the spring provided witha projection adapted t0 enter a notch in the thill iron whereby the latter is locked against turning, substantially as set forth.

2. In a tliillcoupling, the combinationwith a clip, and a thill iron having a notch formed therein, of a detachable spring, said spring having shoulders thereon adapted to overlap the upper and lower edges of the arms or ears of Vthe clip and the opposite end provided with a projection adapted to enter the notch in the thill ir0n,whereby to hold the thill iron in an elevated position, substantially as set forth. Y

3. Ina thill coupling, the combination with a clip and arms or ears projectingtherefrom, of a thill iron mounted between said arms or ears and having a recess therein, a spring located between the arms or ears of the clip and having shoulders to project over and under the same, and a knob or enlargement at the free end of said spring adapted to enter the recess in the thill iron, substantially as set forth.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

GEO. W. POST. Witnesses:

B. L. SHEPARD, FRANK J. WoLFF.

ICO

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