US470595A

US470595A - Fence-staple extractor

Info

Publication number: US470595A
Authority: US
Publication date: 1892-03-08
Anticipated expiration: 1909-03-08

Description

(No Model.)

. J. T. POMEROY. FENCE STAPLB lEXTRAG'IORl No. 470,595. Patented Mar. a, 1892,.

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. UNITED STATES PATENT OFFICE.

JULIUS TAYLOR POMEROY, OF EDGERTON, VISCONSIN.`

FENCE-STAPLE EXTRACTOR.

sPEoIEIoATIoN forming part ef Letters Patent No. 470,595, dated Meren s, 1892.

Application tiled February 13, 1891. Serial No. 381.398. (No model.)

To all whom it may concern: Be it known that I, JULIUsTAYLoR POME- ROY, of Edgerton, in the county of Rock and State of Wisconsin, have invented a new and Improved Fence-Staple Extractor, of which the followinggis a full, clear, and exact description. Y

My invention relates to improvements in fence-staple extractors; and the object of my invention is to provide a simple and efficient device that will quicky and easily extract fence-staples without damage to the fencewire or the staples. I obtain these result-s by the combination, with nippers, of a togglejoint and lever, as illustrated in the accompanying drawing, which is a perspective ViewM of said device.

The nippers have steel jaws A A, suitably formed for grasping the staples and have short but heavy arms B B. The jaws are united by two solid flat links C C, one above and the otherfbelow the jaws, which are pivoted near their outer ends to the center of the jaws at D D. On the inner faces of the jaws and inline with the pivots and opposite to each other are semicircular recesses E E, the two forminga cylindrical hole through the pair, into Which a metal cylinder F is placed to hold the jaws in proper relative positions. A coil wire spring G extends between the nipper-arms and forces them apart for the purpose of closing the jaws.

The toggle-joint is composed of tive solid fiat links, four of which H H H H are pivoted at their inner ends in pairs at I I, one on the upper Asideand the other on the under side of the front endof the fifth link Said fifth link is a solid flat link at its front end and slotted at its rear end to receive the lever K. Each pair of links is pivoted at its outer ends to the outer ends of the nipper-arxns L L, one on the upper side and one on the under side of each Dipper-arm. Upon the inner ends at the front sidesof said toggle-links acute angles S S are formed for the purpose hereinafter specified. The lever'K K is a bar'of suitable length provided with a handle at the rear end M and bent at an angle near the front end where it enters the slot N in the fifth link j and is pivoted thereto at P.

The device is operated as follows: The right handgrasps the handle of the lever, the left hand clasps around the nippel' arms and presses them together, thus opening the jaws for the reception of the staple. l The jaws are then placed one on either side of the staple, the left hand releases its grasp, and the coilspring forces apart the Dipper-arms, causing the jaws to grip the staple. the lever is now brought in contact with lthe fence-post and the handle borne down upon. The force thus exerted extends through the The front end of link j to the toggle-joint, tending to straighten the links and spread the nipper-arins and fixing the jaws into the staple. serves a double purpose, that of extracting the staple and at the same time to increase and securethe grip upon the staple. The grip increases with the extracting power until the acute angles upon the inner ends of the opposing toggle -links meet. The extracting force may be continued until the staple is removed.

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

l. In a fence-staple extractor, the combination, with nippers, of toggle-joint and lever, asshown, and for the purpose specified.

2. In a fence-staple extractor, the combination, with nippers, of toggle-joint and lever, the opposingtoggle-links having formed on their inner ends and front sides acute angles S S, as shown, and for the purpose specified.

3. In a fence-staple extractor, the combination, with nippers, of toggle-joint and lever, the outer ends of toggle-links pivoted to the outer ends of nipper-arms L L, the fifth link of toggle-joint pivoted at the slotted end to the lever P, the lever bent atan angle, as y.

shown, and for the purpose specied.

JULIUS TAYLOR POMEROY. Vitnesses:

J. W. LINDLEY, F. A. TALMADGE.