US4976A

US4976A - Improvement in plows

Info

Publication number: US4976A
Authority: US
Publication date: 1847-02-20
Anticipated expiration: 1864-02-20

Description

G. BARTLETT,

How. I

No. 4,976. Patented Feb. 20,- 1847.

AM. PHOTO-LITHO. Cb. N.Y. (OSBDRNE'S PROCESS.)

UrvITED STATES PATENT OFFICE.

GEORGE BARTLETT, OF SMITHFIELD, RHODE ISLAND.

IMPROVEMENT IN PLOWS.

Specification forming part of Letters Patent No. 4,976, dated February 20, 1847.

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 Bartlet-ts 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 bad to the annexed drawings, 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 ofthe forward plow, A, ofsuch length and form as to be even with the handle of the back plow, B,)are connected together by means ofa frame and iron joints in the manner described as follows A frame is made, in the form represented in Figure F, 01' 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 ajoint, as represented by thedrawiu'g J, the joint being on the upper side ofthe beam. The back partot' the frame is connected with the same plow, A, by means of the long iron rod 1, three-fourths ofan inch in diameter, bent as represented in the drawings, so as to allow the plow to roll. This long bent rod is connected by a joint to a short bolt, which passes through thelower end ofthe plow-handle.

The forward part of the near-side piece .of the frame is attached to the back plow, B, at h, near the end of the beam, by means of ajoint, as represented in the drawings, K J. Thisjoint is formed of two pieces of iron, onefastened firmly to the lower side of the frame by screws or bolts, and s0 bent as to pass down below the beam and allow the beam to roll. A bolt connected with this rod of iron by a joint immediatel y below the beam passes up through the beam, and is secured by a nut 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 atra'ched to the forward plow, this joint is thus located to place it near the line of draft. It, therefore, from any cause, the team is connected with the back plow at a point above the middle 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.

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

The handles are connected at m by means of a stifi' rod with ajoint 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 itin the same manner as those already described.

For marking or furl-owing 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.

I claim The location of the joints near the line of daft, or, in other words, near the axis about which the plow should, and ordinarily does, revolve when rolled for the purpose of guiding it.

In testimony that theforegoingisa true specilicatiou of my said improvement I have hereunto set my hand this 1st day of February, in

the year of our Lord 1847.

GEORGE BARTLETT. In presence of- NATHAN STEVENS, WILLARD SAYLES.