US367740A

US367740A - Draft-equalizer

Info

Publication number: US367740A
Authority: US
Publication date: 1887-08-02
Anticipated expiration: 1904-08-02

Description

(No Model.

W; H. BAKER.

DRAFT EQUALIZER. N0.'36 7,740. Patented Aug. 2; 1887.

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- UNITED STATES PATENT OFFICE.

XVILLTAM H. BAKER, OF OXFORD, ASSIGNOR OF ONEIIALF TO SAMUEL V. SMITH, OF PONTIAC, MICHIGAN.

DRAFT-EQUALIZER.

SPECIFICATION forming part of Letters Patent No. 367,740, dated August 2, 1887,

Application filed June 10, 1887.

To all whom it may concern.-

Be it known that I, WILLIAM H. BAKER, a citizen of the United States, residing at OX- ford, in the county of Oakland and State of Michigan, have invented certain new and useful Improvements in Draft-Equalizers; and I do declare thefollowing 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, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

This invention relates to draft-equalizers wherein two horses are hitched to a doubletree abreast; and my object is to so contrive a device that the horses will 'pull alike.

The invention which I have made will be fully understood from the following description, taken in connection with the annexed drawings, in which- Figure 1 is a top view of my improved device, showing the doubletree in a position at right angles to the line of draft. Fig. 2 is a similar view of the same parts, showing the doubletree oblique to the line of draft. Fig. 3 is a perspective view in detail, indicating the clevispin, by the aid of dotted lines, in two positions. Fig. 4 is an end View of one end of the doubletree, showing the slot and pinhole. Fig. 5 is a perspective view of the improved clevis without the fulcrum-pin.

.tcferring to the annexed drawings by letter, A designates a doubletree or eveuer-bar, which is pivotally connected to a draft-pole or other object at a by the usual kingbolt. Equidistant from this point a, I form slots f vertically through the said doubletree near its ends, and beyond these slots I make vertical perforations f. The slots on the perforations are equidistant from the central perforation, a.

I 110w employ clevises B, which are constructed as follows: Each clevis consists of a long loop having right-angular offsets d, which are perforated vertically and designed to receive through them a removable pin, b, which passes through the slots f in the doubletree. The holes f through the ends of the double- Serial No. 210.924. (No mo .el.)

tree A are for a purpose which will be here inafter described. The clevises have vertical fulcrum pins or bolts 0 at their rear extremities, which serve two purposes-to wit, they unite the rear ends of the longitudinal portions a of the clevises, and they also afford bearings against the rear edge of the doubletree when this tree is moved out of line, as indicated in Fig. 2 on the right'haud side of this figure.

When the horses are abreast and drawing evenly, the doubletree will be at right angles to the line of draft and in the position indicated in Fig. 1. Vhen the animals pull alike and it is desired to use the devices as ordinary clevises, the pins 1) are put through the holes f and f. \Vhen the animals do not pull evenly, the pins b are inserted through the lateral projections or arms (Z and through the slots f. The slots f are at right angles to the length of the doubletree, and when the pins b are passed through the arms (Z and through said slots they will move forward and backward and allow the vertical pins 0 to find a bearing on the posterior edge of the double tree, according to the draft exerted by the different draft of the animals pulling. For example, reference being had to Fig. 2 of the annexed drawings, it will be observed that the dotted line y indicates the common line of draft; the dotted line 3/ indicates the line of draft for the horse which pulls the strongest, and the dotted line y indicates the line of draft for the horse which is behind. This Fig. 2 is designed to representthe position of the doubletree with respect to the clevises when this donbletree is oblique to the line of draft, and it illustrates that the pin or bolt 0 on one end of the doubletree has been moved away from the rear edge of the doubletree, while the pin 0 of the opposite clevis has been moved toward and bears against the doubletree.

It will thus be seen that the leverage is compensating and automatically adjusting; that the rear pins or connectingbolts, 0, find a hearing against the rear edge of the doubletrce when the pins b are adjusted. in the position indicated in Fig. 3. It will also be seen from the above description that I am able to use the elevises B by a simple adjustment of the vertical fulcrum-pinscand perforated oflsetsd, 10

pins Z) for two horses which pull alike, or for and an interchangeable pin, 1), adapted for the two horses which pull differently. I several perforations through the elevises.

Having thus fully described my invention, In testimony whereof I affix my signature in 5 what I claim as new, and desire to secure by presence of two witnesses.

Letters Patent, is- XVILLIAM H. BAKER.

The combination, with a (loubletree perfo- Vitnesses: rated at f and transversely slotted at f, of J. C. BIRD, perforated loopshaped elevises provided with I JAMES XV. BERRIDGE.