USRE6024E - Improvement in sheep-shearing machines - Google Patents

Description

UNITED STATES PATENT OFFICE.

MARVEL C. DAVIS, OF GUILFORD, OHIO, ASSIGNOR TO BOSVVELL T. SMITH, JOSEPH K. PRIEST, JOHN G. BLUNT, AND WM. EARL, JR.

IMPRQVEMENT IN SHEEP-SHEARING MACHlNES.'

Specification forming part of `Letters Patent No. 53,277, dated March 20, 1866 reissue No. 6,021.1, dated v August 25, 1874; application filed July 3, 1873.

To all 'whom it may concern:

Be it known that I, MARVEL Guilford, in the county of Medina and State of Ohio, have invented certain Improvements on Machines for Shearing Animals; and I do hereby declare that the following is a full, clear, and exact Vdescription thereof, reference being had to the accompanying drawings making part of this specification, in which- Figure l is a side elevation of my improved machine, partly in section, as indicated by dotted line .r x. Fig. 2 is a top view.

Similar letters of reference indicate corresponding parts in the two figures.

The nature of my present improvement consists in certain combinations of parts, as hereinafter described, and as specifically claimed, whereby the first link of the jointed arm, to which the cutters are attached, is hung to the supporting-frame by a swinging hanger. The jointed arm has an additional movement in a -horiiontal plane,'and'the machine is adapted for shearingon two sides of the same frame at the same time, and may be used for shearing on only one side, as may -be desired.

The following description of my invention will enable others skilled in the art to understand it. j

In the accompanying drawings, A represents the upright portion of the supportingframe, and A A represent two horizontal beams, which are on top of the uprights A, and extend out therefrom, so that the cuttercarrying arms can be suspended beneath them, as shown in Fig. 1. Near the upper end of the upright portion of the frame is a horizontal transverse shaft, B, on which is keyed a spur-wheel, C, which engages with a pinion, D, on another horizontal transverse shaft, E, arranged below the shaft B. On

this shaft E there is also keyed a drum, F,

around which two belts, GG, pass, which are carried upward and outward and passed around pulleys H H on shafts I" I, the bearings of which are on arms J J, that are connected tol beams A by joints a a, so that their outer extremities can be moved vertically. The .arms J J have extensions b b secured to their inner sides, and these extensions are secured to shafts K, having their end bearings in the C. Davis, ofA

overhanging 'portions' of the beams A' A. The shafts K have levers L secured to them, by moving which the outer ends of the arms J J- can be raised or depressed, and when raised,jas shown on one side of the frame in Fig. 1, they can be rigidly fixed by turning over them the buttons M. The object of the adjustable arms J J is to allow the shafts I I to be depressed and the belts G G to be slackcned. By this means either one of the shearing devices can be thrown out of gear and its motion stopped.

The cutters and their arms-on both sides of the frame A are constructed precisely alike, for which reason I shall only describe those on one side of the frame. y

From the shaft I is hung a bar, O, which is composed of two sections connected by a swivel-joint, Q, which allows the lower section of this bar to oscillate about itsloug axis.

The bar O is allowed to swing freely on the shaft I, to which its upper section is permanently hung by a strap or hanger, I?, and the lower end of the lower section is connected .by a hinge-joint, It, to. a bar, S, which latter is also composed of two'sections connected by a swivel-joint, T. The outer end of the bar S is connected by a hinge-joint, U, to a la V, which latter joint allows the bars to work at right angles to the hinge-joint R, and the outer end of the bar V is connected by a hinge-joint, W, to a bar, X, the joint WLworking at right angles to the joint U, and, consequently, in a direction corresponding to the joint B. This arrangement of hinge and swivel jointsadmits a perfectly flexible connection of the bars O S V X, so that the cutters, which are attached to the outer bar X, may be unrestrainedly manipulated in any direction and passed over the body and limbs of an animal with great facility. The cutters or shears are composed of three or more stationary or fixed cutters, c, which are secured to the under side of the barX, and a pivoted vibrating cutter, Y, works over the upper surfaces ofthe fixed cutters. The cutter Y has an oblong slot, d, through its rear part, to receive a, pin, e,at the front end of a rod, f, which is attached to an arbor, g. An arm, h, projects from the arbor g, and is connected, by means of a rod, fi,

to a cranked wristlpin, j, on one end of the pivot ot' pulley Z, at the joint W. The pulley Z is driven by a belt, A2, from a pulley, B',

which is applied on the pintle or" the hingebar V with its guides k k, and bar X, jointed joint R, `and the pulley B' is driven by a belt, C', from the pulley N onV shaft I. The belt A2 passes between rollers k 7c at the outer ends of the bar S, which rollers prevent this belt slipping o' the pulley N. By these means it will be seen that a vibrating motion canfbe communicated to the cutter Y while it is moved about in any direction or passed over the body and limbs of an animal in shearing the same.v It will also be seen that two persons can work at the machine at the same time and shear two animals, while, if desired, either cutter may be stopped independent of the' other by simply releasing the lever L, which holds up the arm.

Having described Inyinvention, WhatI claim as new, and desire to secureby Letters'Patent, is

1. The combination of bar O with its hanger P and joint Q, shaft I, and the gearing N, B', and C', substantially as described.

2. The combination of the bar- O, bar S,

as described, and the gearing N, C', B', Z, and A2, substantially as and for the purposes described.

3. The combination of the pendent rod or link O, frame A, hinged arm J, and gearing G, F, N, B', H, and C', substantially as described.

Witness my hand and seal in the matter of my application for reissue of my Letters Patent for a sheep-shearing machine.

MARVEL C. DAVIS. [L. s.]

Witnesses:

J ENNIE E. DAVIS, J osEPH Ross.

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