US472139A

US472139A - William henry newton

Info

Publication number: US472139A
Authority: US
Publication date: 1892-04-05
Anticipated expiration: 1909-04-05

Description

No. 472,139. Patented Apr. 5, 1892.

. anim/V60i UNITED STATES ATENT OFFICE.

WILLIAM HENRY NEWTON, OE DEOATUR, ILLINOIS, ASSIGNOR OF ON E-HALF TO ALBERT M. MCGEE, OE SAME PLACE. i

SPECIFICATION forming part of Letters Patent No. 472,139, dated Apr-i1 5, 1892. Application filed November 2, 1891. Serial No 410,665. (No model.)

To afZZ whom it may concern:

Be it known that I, WILLIAM HENRY NEW- TON, a citizen of the United States, residing at Decatur, in the county of Macon and State of Illinois, have invented a new and useful Dehorner, of which the following is a specification.

This invention relates to improvements in dehorning implements; and the objects in view are to provide an implement for the above purpose, the same being adapted to readily and cleanly cut 0E the horns f animals with but slight exertion upon the part of the operator. 1

Other objects and advantages of the invention will appear in the following description, and the novel features thereof will be particularly pointed out in the claims.

Referring to the drawings, Figure 1 is a perspective of a dehorning implement constructed in accordance with my invention. Fig. 2 is a longitudinal section. Fig. 3 is an elevation with one of the face-plates removed. Fig. 4 is a detail of the stationary knife.

Like numerals of reference indicate like parts in all the figures of the drawings.

1 1 designate a pair of similarly-constructed face-plateshavingasubstantially oblongshape and terminating at their lower or inner ends in outwardly-disposed bearing-ears 2, between which strengthening-arches are formed. Each of the face-plates is provided near its upper or outer end with a circular opening 3, and one of said plates has a removable section in which said opening is formed, and has the outer edge of its opening beveled to form a curved cutti 11g-edge 4. The plates are spaced apart by opposite side bars or strips 5, having at intervals perforated ears 6, which agree with corresponding ears formed at the edges of the plates, and through said ears bolts 7 are passed, whereby the two plates and the intermediate side strips 5 are securely bound together. Located in the plates for movement is a blade 8, provided at its outer end with a diagonal beveled cutting-edge 9, adapted to operate in connection with the cutting-edge 4 of the opening 3 and to form a shear cut upon a horn introduced through the openings 3. The plate is provided at its inner end with a double rack-bar 10, having a central longitudinal slot 11, which receives a transverse pin 12, passing through the two plates at their inner ends, and serving as a guide for the bar and knife.

13 designates a bell-crank lever, and 14 a companion lever of asimilar pattern. These levers are pivoted or fulcrumed by bearingbolts 15 between the pairs of ears 2 of the plates, and at their outer or forward en ds terminate in toothed sectors 16, which engage the opposite teeth of the rack-bar 10, and communicate reci procatory movement to the rackbar and knife. The

levers

13 and 14 are provided at their extremities with internal sockets 17, and into the same are inserted wooden handles 13. In bearing-ears 19, formed at the inner edge of the lever 13, near the fulcrum of the same, there is pivoted, as at 20, an intermediate lever 21, terminating opposite the handles 18 in a socket 22. Eyes 23, formed on the lever 14 near the free end of the same, are pivotally connected by a bolt 24 to a short link 25, the inner end of which is by a bolt 27 pivoted to ears 28, located upon the intermediate lever 21 at or near its center.

This completes the construction, and the operation is as follows: To sever a horn, the

levers

13 and 14 are spread, and, moving upon their fulcrums 15 through the medium of their toothed sectors and the engaged double rack-bar, draw the knife rearwardly 01 from over the openings 3. The openings 3 are now introduced over the horn and snug upon the same, so as to closely embrace it at the point immediately below where the cut is to be made. It now simply remains to draw the two

levers

13 and 14 together, the horn being severed by the united cutting of the cuttingopening 3 and the cutting-edge 9ct the blade 8 as the two are brought together. In this manner a shear cut, clean and free from splintering, is made, which clean cut is further promoted by the snug embracing of the horn by the hole 3 of the lower plate. If the horn is particularly tough and requires more than the power that may be conveniently applied through the medium of the two

levers

13 and 14,the handle 18 is removed from the lever 14 and applied to the end of the intermediate lever 2l. This lever and the lever 13 are now drawn together, and it will be seen that the inward movement of this lever will cause a greatly-increased force to be applied to the blade.

From the foregoing description, in connection with the accompanying drawings, it will be seen that l have provided a cheap and simple constructed dehorning device adapted to smoothly remove the horns without danger of cracking or fracturin g the same and that said device is designed to accomplish the operation with dispatch and with but little exertion upon the part of the operator.

Having described my invention, what I claim is l. In a dehorner, thecombinatiomwith the casing, the opposite walls of which are provided with openings, one of the same being beveled to form a curved cutting-edge, of opposite segmental levers fulcrumed at the inner corners of the casing and having their segmental portions provided with teeth, a blade mounted for sliding in the casing and terminating at its outer end in a cutting-edge, a rack-bar secured at its front end to the rear end of the blade and having opposite toothed edges and an intermediate longitudinal slot, said rack-bar having its teeth engaged by those of the levers, and a guide-pin passing through the walls of the casing and the slot of the rack-bar and serving as a guide for the same, substantially as specified.

2. In a dehorner, the combination, with the casing having the cutting-opening, the sliding knife, and the rack-bar, of the opposite levers fulcrumed at the inner corners of the casing, said levers terminating at their forward ends in toothed sectors engaging the rack-bar and in rear of the same in handles, an intermediate lever fulcrumed at its forward end near the inner end of one of the levers, and a link pivotally connected to the opposite lever, to which the intermediate lever is pivoted and to said intermediate lever be tween the ends thereof, substantially as specified.

3. In a dehorner, the combination, with the casing having the beveled opening and the opposite pairs of bearinglugs, the sliding knife mounted for movement in the casing, the longitudinally-slotted oppositely-toothed bar connected to the rear end of the knife, and the guide-pin located in the casing and passing through the slot of the bar, of the

angular levers

13 and 14, pivoted in the bearing-ears of the casing and terminating at their outer ends in sockets, handles removably mounted in the sockets, the intermediate lever 2l, pivoted at its forward end to the lever 13 and at its rear end terminating in a socket adapted to receive the removable handle 1S of the lever 14, and the link 25, pivotally connected to an intermediate portion of the lever 2l and to the rear of the lever 14, substantially as specified. Y

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses.

WILLI AM HENRY NEWTON.

lllitnesses:

G. W. LEI-IMAN, C. S. HAWKINS.