US18803A - Improvement in plows - Google Patents

Description

J. CASE.

I Wheel-Plow.

Patented Dec, 8, 1857.

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Llll, PHGTO-LITHD. CO, N-Y. (USRDRNE'S PROCESS.

UNITED STATES PATENT OFFICE.

JARVIS CASE, OF SPRINGFIELD, ILLINOIS.

IMPROVEMENT IN PLOWS.

Specification forming part of Letters Patent No. 18,803, dated December 8, 1857.

To all whom it may concern:

Be it known that I, JARVIS CASE, of Springfield, in the county of Sangamon and State of Illinois, have invented certain new and useful Improvements in Flows; and I do hereby declare the following to be a full, clear, and exact description of the construction and operation of the same, reference being had to the accompanying drawings, making a part of this specification, in which- Figure 1 represents aperspective View. Fig. 2 represents a side elevation, partially in section, and by red lines the position into which the several parts can be thrown by the weight of the driver mounted on the plow; and Fig. 3 represents a transverse section through the supporting-wheels, being centrally and vertically taken.

Similar letters of reference,where they occur in the several figures, denote like parts of the plow in each of them.

The nature of my invention relates to the so jointing of the beam and tongueof a plow and extending a lever (which in this case is the seat also) from one to the other as that the driver who rides upon the plow may throw up the plow or plows out of the ground to turn around at the ends of the furrow, and so supporting the beam on the wheels asthatthelatter in rising over any obstruction or dropping into any depression may not tend so much to throw the plow into or out of the ground.

To enable others skilled in the art to make and use myinvention, I will proceed to describe the same with reference to the drawings.

A represents the beam, stock, or frame of the plow, to the rear portions of which are attached the two plows B B. More or less than two may be used, In rear of the extreme front end of the beam a supporting piece, a, passes through it at about its center, the lower end of said supporting-piece a being slightly forked or curved out,as shown in Fig. 3, so as to straddle or rest upon the axle c of the supportingwheels 0 G.

On the axle c are secured two collars, e 6, between which the point or lower end of the piece a, which is made wedge-shaped at that end for the purpose, rests. The upper end of the piece a is bent over and forked, as seen at i, Fig.1, and these forks straddle a screw-rod,

f, between fast collars, or in a recess in said rod, so that by turning the winch .g the front of the beam A may be raised or lowered on the axle c, which would also raise or lower the points of the plows B B to regulate the depth at which they are to run.

On the sides of the beam A are arranged guide-pieces b b, which straddle the axle c and tend to keep said axle at right angles to the plow-beam, whilethe plow-beam maybe raised or lowered thereon at pleasure.

The front end of the beam is mortised out so as to receive the rear end of the-tongue D, said tongue being confined therein by the screw-bolt or rodd passing through said beam and tongue, but so that the tongue may play vertically,but be rigid, or nearly so, laterally. At the extreme rear end of the tongue,behind the rod d, is arranged a lever, E, which curves backward,and for convenience may have upon its extreme rear end a drivers seat, F, upon which the driver may shift his position to throw the plow or plows out of the ground when it is to be turned at the end of the furrow.

The end of the tongue is fastened to the horses necks or breasts in the common wellknown way, and when the lever E is in the position shown by black lines in Fig. 2 (which position is had by the driver moving himself forward on his seat) the plows and beam will be in the position shownin said figureby black lines. Now let the driver slip himself backon his seat until his weightdepresses the seat to the point shown by the red lines, and the several other parts of the plow will assume the positions shown respectively in red lines, the plows themselves being raised up out of the ground sufficiently to turn the plow around.

To prevent the fore end of the beam from going too low, an adjustable pin, h, may be placed through one of the holes 1 2 in said lever, which will stop against the ends of the beam A.

G are double-trees arranged on the dragbar H, which is pivoted to the tongue by the king-bolt a, the plow being shown as arranged for four horses, but may be arranged with one plow and single pair of horses.

The plows may be set to or from the land by means of keys at passing between the neck of 'plow.

the mold-board and the beam or stock, and by having a set-screw, 0, and slot 1", as seen in Fig. 1. A screw-bolt, 8, may also pass through the neck ofthe mold-board and beam for fur.- ther security.

Of the wheels 0 O,one of them should be loose upon the axle to facilitate the turning around of the plow. They have cutting-edges u u at their outer perimeters for scoringthe sod, or cutting stalks, weeds, &c., and these cutting-edges run immediately in front of the points of the plow, so that the furrows shall be'turned from the scores made by these outters. the depth at which the cutters shall penetrate the ground. Y

By supporting the beam A on the center of the axle 0 the wheels may rise and fall in passing over the ground without affecting materially the beam or the plows connected to it,

any motion they havefrom this cause being Vertical, and not rocking or rolling sidewise, which would throw the points into and out of ground and endanger the breaking of the The main tendency of the passage of The treads v t) on the wheels regulateas new, and desire to secure by Letters Patcut, is

"1. Hinging the tongue to the beam of a plow and extending a lever or lever-seat from oneto the other, so that the driver mounted on the plow may by said lever throw the plow or plows out of the ground, as herein set forth.

2. Supporting the front of the beam on the center of an axle, 0, supported in wheels 0 0,

so that said beam may be raised or lowered on said axle, but not affected by the passing of said wheels over the rough ground, as hereip set forth and explained.

JARVIS CASE.

Wiinesses:

' A. B. S'roUeHToN,

'lnos. H. UPPERMANS.

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