US120572A - Improvement in gang-plows - Google Patents

Description

S'Sheetsr-Sheet V2.

LUKE CHAPMAN Patented No\r.7,1871.v Improvement in Gang Flows.

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UNITED STATES PATET OFFICE.

LUKE CHAPMAN, OF COLLINSVILLE, CONNECTICUT, ASSIGNOR TO HIMSELF AND THE COLLINS COMPANY, OF SAME PLACE.

lNPROVEMENT iN GANG-FLOWS.

Specification forming part of Letters Patent No. 120,572, dated November 7, 1871.

To all whom it may concern:

Be it known that l, LUKE CHAPMAN, of Collinsville, in the county of Hartford and State of Connecticut, have invented an Improved Gang- Plow, of which the following is a specification:

This invention is an improved apparatus for agricultural use, for plowing with two or more plows at the same'time, turning two or more furrows in the earth at once. It is more particularly intended for use with steam traction-engines, though of course any other power ma-ybe applied.

Figure lis a side elevation, with the wheels and axle in an exactly reverse position from that of actual use for the purpose of better showing the form and arrangement of the various parts. Fig. 2 is a plan view of the gang-plow in the same position as in Fig. l. Fig. 3 is a detached view of the standard which rises immediately from the axle, together with the devices for lifting the plows, for reversing the sets of plows, and for oscillating them horizontally. Fig. 4 is a detached enlarged view of the reverse side of the parts shown in Fig. 3.

The letter a indicates the beam to which the` plows arehung, made preferably of ahollow metal tube, on one side of which is attached a set of two or more right-hand plows, al al. On the exactly opposite side is attached a similar set of lefthand plows, a2 a2. Both sets are attached to the beam at such an angle as will make their landsides point straight forward when the plows are at Work. As this beam is reversible, it is not positively necessary that the sets of plows should be opposed to each other, for it is manifest that the sets might be placed at right angles or other angles 5 but it is preferred that they should be placed opposite for the purpose of balancing each other. Neither is this invention limited to just the arrangement and kind of plows indicated above, for, with a reversible beam and the other combined mechanical devices, it is adapted to all kinds and degrees of plowing; forinstance, sets of alternate right-and-left-hand plows may be opposed to each other for the purpose of eultivating crops after the rst breaking, turning back-furrows, or in preparing soil specially for special crops; and suitable arrangements will also suggest thelnselves for trench, ridge, and other kinds of plowing, and for all kinds of work now done by double-furrow and shovel-plows and cultivators. rlhe beam c is hung in the swivel b,

which turns in the sliding block b1 running through the same, and collared upon either side thereof so that it cannot escape therefrom. he

worm-gear c forms the rear one of these col-- lars, and into it meshes the worm c1, which is upon the shaft c2, hung in bearings c3, att-ached to the upper corners of the sliding block, and actuated by the crank-arm c, by means of which the operator of the machine can reverse the positions of the two respective sets of plows and put either set at work, as he desires. The sliding block b1 slides vertically on ways in the open interior of the standard d. It is suspended from the top ofthe standard by means of a hydraulic liftin gjack, composed principally of the exterior parts. barrel d1, piston-rod d?, and handle d3. Of course this sliding block and its dependent plows might be suspended herein by a screw or other common lifting device of great power; but the de vice presented is the one preferred for its power and ease of operation. By means of this hydraulic jack the plows can be raised or lowered by the operator, as desired. The standard d at its foot rests on and is attached to the bed-plate f, which is pivoted horizontally on the axleplate f1, just beneath it, which latter is firmly fastened to the axle g. At one side, on the outer circumference of the bed-plate f, is hung the shaftf, actuated by the crank f3, and having a worm, f4, thereon, meshing into -the worm-teeth f5 attached to the axle-plate f1, whereby the operator may oscillate the bed-plate j', and with it the standard and plows, so as to make the beam c observe any desired angle with the axle g. On the outer circumference of the axle-platef1 are three stop-marks,z fil i2, which will be traveled over by the printed end f6 of the bed-platef when it is revolved horizontally on the axleplate f1. These three stop-marks indica-te the three positions which it is desirable for the beam a to observe with reference to the axle g at different times. When the pointer f 6 is on the stop, mark i1 the beam is at right angles to the axleand is in position for being drawn om one place to another, the drawing power being attached at the front end a3 of the beam. When the pointer f 6 is upon the stop-mark i and the set of righthand plows is undermost, the machine is in the proper position for putting this set of plows at work. When the pointer f 6 is upon the stopmark 2 and the set of left-hand plows is undermost, then the machine is in position for putting this set of plows Work. When the pointer f 6 is upon the stop-mark fil and it 'is intended to move the plor from one place to another, then the beam a should be turned so as to ha-ve both sets of ploWs project out horizontally therefrom. From the front end of the beam a the arc of a circle, o, extends, Whose center is directly over the pivot which attaches the bed-platef to the aXle-platef1, and on this arc slides the band 01, which can be set at any point on the arc by the set-screw o2, and to the front of which is attached a link, o3, to Which the drawing power is to be attached when the machine is at Work. nFrom the back of the band o1 a draw-rcd, 04, runs back to near the standard d and attaches to the beam a. Practically the bandol is set at such a point 0n the arc o that the draw-rod o4 Will be straight over the line of draft when the plovvs are at Work. Just in front of the ploWs is a gauge-Wheel, m, attached by the crank-arm m1 to thebeam ce, and its shaft m2 running through the beam a and firmly attached to the circular plate fn, Which has reversed. The axle g is hung belovs7 the centers oi' the Wheels a' by means of arms g1 g2. The parts are all of metal. I

I claim as my inventionl. The beam a, made reversible, and provided With sets of ploWs both before and behind the point of suspension, substantially as described.

2. The reversible beam a combined With the swivel b, sliding block p1, and standard d, and made rotary by means of the Worm-gear c and Worm c1, substantially as described.

3. The parts as clailned in the immediately pre1 ceding clause, combined With the lifting jack described7 substantially as described.

4. The standard d having a reversible beam a hun g therein, and made oscillatory sideWise upon the main axle g by means of the belt-plate f pivoted to the axle-plate f1, and the Worm f4 and Worm-teeth f 5, substantially as described.

6. In combination With a reversible plow-beam, a, the gauge-Wheel m, attached adjustably thereto, substantially as described.

7. A plow-beam, a, made reversible by mechanism substantially as described, made adjust able vertically and sidewise by mechanism substantially as described, and the Whole hung on a main axle, g, permanently sunk below the level ofthe centers of the supporting-Wheel, substantially as described.

LUKE CHAPMAN. Witnesses:

JASPER H. BIDWELL,

WM. E. SnvroNDs. (114)

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