US131033A - Improvement in neck-yokes and pole-couplings - Google Patents

Description

W. W. SKINNER.

Improvement in Neck-Yokes and Pole-Couplings.

No. 131,033, Patented sep.3,1a72.

- ating the several parts.

UNITED STATES PATENT OEEIcE.

WILLIAM W. SKINNER, OF DES MOINES, IOWA.

IMPROVEMENT IN NECK-VOICES AND POLE-COUPLINGS.

Specification forming part of Letters Patent No. 131,033, dated September 3, 1872.

- SPECIFICATION. Specification describing a certain Improved A Neck-Yoke and Pole-Coupling, invented by catch, a flange, and an ear, and combining and using the same with a neck-yoke and pole, in the manner hereinafter fully set' forth. Figure 1 of my drawing is a miniature perspective view illustrating the form of my coupling-pin. It is made of cast metal, complete in one piece, and may vary in size. a is the pin of tapering form. b is a catch on the upper side and near the rear end, and may vary in shape. c is an annular flange on the rear end. d is an ear standing upward and forward from the an ge c and rearA end of the pin b. f

Fig. 2 is a metal band or socket designed to encase the front end of the pole. cast complete in one piece and vary in form. e is a round opening in the center of the face with a slot or enlargement on the under side, designed to admit the passage of the catch b on the pin a. The form of the slot of the catch b.

Fig. 3 is a half section of the front end of a pole, and shows the manner of preparing the wood before the land B is attached. fis a bore designed to admit the pin a. The enlargement at the end of the bore provides a cavity, in which the catch b operates.

Fig. 4 is a miniature perspective view illustrating the manner of combining and co-oper- The dotted lines indicate the position in which the neck-yoke and coupling-pin are held when introduced to the pole. By turning the yoke to the position re- It may be quired for use the pin is also turned thereby, and the catch b brought to the top, where it will bear against the inside of the band B. This catch device for holding two separate parts together is in common use; but by the manner in which I use it, in combination with the bore in the pole and the long pin a, the ilange c, the ear d, and yoke C, a new and useful re! sult is accomplished. The long pin a andthe flange c form bearings to keep the neck-yoke in a proper position when in use, and at the same time admit of a swivel-joint movement in the coupling. To disconnect the yoke from the pole invert its position, as indicated by the dotted lines, and withdraw the pin.

My coupling is specially designed for culti# vators, but is equally well adapted for all kinds of carriages where a neck-yoke is required.

I am aware that a socket, a shank or pin,

vand a neck-yoke have been combined with a Claim.

I claim as my invention- The coupling-pin, composed of the parts u. b c d, as illustrated in Fig. 1, when combined and operated with a neck-yoke and pole, in the manner described.

-WILLIAM W. SKINNER.

Witnesses J oHN GOLDING, OHAs. S. ScoFIELn.

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