USRE125E - Improvement in hinged plows - Google Patents

Description

G. JARTLETT.

Plow.

' Reissued Nov 7, 1848'.

WASHINGTON. nv c.

m M m m W UNITED STATES PATENT OFFICE.

GEORGE BARTLETT, OF SMITHFIELD, RHODE ISLAND.

IMPROVEMENT l N HINGED PLOWS.

Specification forming part of Letters Patent No. 4,976, dated February 20, 1847; Reissue No. 125, dated November 7, 1848.

To all whom it may concern:

Be it known that. I, GEORGE BARTLETT, of Smithfield, in the county of Providence and State of Rhode Island, have invented, constructed, made, and applied to use a new and useful improvement in the mode of connecting plows together, called George Bartletts Improved Plow, and my said invention or improvement is by me plainly and fully specified in the words and figures following, to wit, reference being had to the annexed drawing:

Two plows, A and B, of the ordinary construction, (or differing from the ordinary construction in having but one handle each, and that on the landside of the plow, the handle of-the forward plow, A, of such length and form as to be even with the handle of the hack plow, B,) are connected by means of a frame and iron joints in the manner described as follows: A frame is made, in the form represented in figure F, of four sticks of timber three inches by four in size. Two of these sticks, each two and a half feet in length, are joined together by two others, each of a length equal to the width of the furrow which one plow will cut, firmly mortised into the two long sticks at right angles with them. The forward part of the frame is attached to the plow A at 9, near the end of the beam, by two iron bolts connected by a joint, as represented by the drawing J, the joint being on the up per side of the beam. The back part of the frame is connected with the same plow, A, by means ofthe large iron rod i, three-fourths ofan inch in diameter, bent as represented in the drawing, so as to allow the plow to roll. This long bent rod is connected by a joint to a short bolt, which passes through the lower end or the plow-handle. The forward part of the near-side piece of the frame is attached to the back plow, B, at it, near the end of the beam, by means of a joint, as represented in the drawingKj. Thisjointis formed of twopieces of iron, one fastened firmly to the lower side of the frame by screws or bolts, and so bent as to pass down below the beam and allow the beam to roll. A bolt connected with this rod of iron by ajoint immediately below the beam passes up through the beam and is secured by a not on the upper side of the beam. As the team must be attached to the back plow at a point lower than that to which it is attached to the forward plow, this joint is thus located to place it near the line of draft. If therefore, from any cause, the team is connected with the back plow at a point above the mid dle of the beam, thejoint should be constructed as described for the forward plow and placed on the upper side of the beam. The back part of the frame is attached to the plow B in the same manner as to the plow A.

hen plows of the ordinary construction are used the bent rods at the back part of the frame may be connected with the plows by means of ajoint, as represented a t.

The handles are connected at m by means of a stiff rod with a joint at each end, as represented in the drawing a.

The team is attached to the middle of a chain, which is hooked at the ends into the two shackles at the ends of the beams.

The point of the back plow, B, should be even with the back part of the forward plow, A.

When more than two plows are used the width of the frame is increased and the additional plows are connected with it in the same manner as those already described.

For marking or furrowing ground to plant, the frame is made of suitable width, and the plows may be placed even with each other, or at the same distance from the team.

Although the before-described frame, jointrods, and links for the purpose of hinging and connecting the plows together are simple in their arrangement and will operate well, yet I do not intend to confine myself to this precise construction and arrangement of parts, for it may be found advisable to connect the lower parts, handles, and beams of plows by means of hinges variously formed and arranged toadapt them to different purposes, which it ji' obvious may be done without any deviati from the principle of the invention, provid d the free rolling motion and parallelism 9f th plows are maintained. These different hi I do not deem it necessary here to describ as they are common devices, which will be readily suggested to the mind of the mechanic whenever an occasion arises upon which he is called to make them.

The several parts of the apparatus may be made of wrought or cast iron or any other suitable material the eonstructer may deem it expedient to'use.

WhatI claim as my invention, and desire to secure by Letters Patent, is

Connecting the handles and beams or lower parts of plows placed parallel and adjacent to each other by means ofjointed rods, links, or

hinges, when the same are arranged in such a manner as will admit of a free oscillating or rolling motion of the plows, and at the same time preserve their parallelism in both their height and. length in all positions within the arc of their vibration, whether the several parts be made and arranged as herein set forth or in any other substantially similar manner by which the same results are produced.

In testimony whereof I have hereunto set my hand.

GEORGE BARTLETT. Witnesses WILLIS 000K, BAILEY E. BORDEN.

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