US219403A

US219403A - Improvement in pruning and grafting implements

Info

Publication number: US219403A
Authority: US
Publication date: 1879-09-09
Anticipated expiration: 1896-09-09

Description

C. M. KINGSBURY. Pruning and Grafting Implement.

No. 219,403. Patented Sept. 9,1879.

. with the cutter.

UNITED STATES PATENT OFFICE.

CHARLES M. KINGSBURY, ()F TAMA CITY, IOWA.

IMPROVEMENT'IN PRUNING AND RAFTING IMPLEMENTS.

Specification forming part of Letters Patent No. 219,403, dated September 9, 1879; application filed January 2, 1879.

To all whom it may concern:

Be itknown that I, CHARLES M. Knvesnonv, of Tama City, Tamacounty, Iowa, have invented a new and Improved Pruning and Grafting Implement for N urserymen; and I hereby declare the following to be a full, clear, and exact description thereof, reference being bad to the accompanying drawings, making part of this specification, in which- Figure l is a perspective view of the instruinent. Fig. 2 is a view of the blade to be used Figs. 3 and 4' are details to be referred to.

The object of my invention is to provide a cutting implement for grafting and pruning wherein the blade can be actuated by a system of levers, so as to gain great power and make a clean cut; and it consists, first, in two pivoted arms, one bearing a curved end, against which the cut is made, and'on which are bearings for a sliding bolt, which bears the knife on its end, the other arm bearing a link-rod, which operates a toggle-lever, by which the knife-bolt is thrust forward and the cut made.

In order that those skilled in the art may make and use my invention, I will proceed to describe the manner in which I have carried it out.

In the said drawings, A is a forging, having at one end the handle a, and at the other end a three-sided bend, b c d, and a bearing, 6, and

a slot, f.

Pivoted to A at g is another forging, B, provided with a handle, I2), and a bifurcated end, i, in which is pivoted oneend of a link, D. The other-end of link D passes through slot f, and is pivoted to a toggle-joint lever, E F, as shown. One arm, E, is pivotedin bearing 0, and the other arm, F, has its end pivoted to the end of a sliding bolt, H, which carries the knife K, the said bolt having its supports or bearings in i and a hole, h,'in b.

The knife is fastened in any desirable manner to the end of the bolt, so that its cuttingedge will project toward the side d of the bent end, which serves as an anvil or block against which to cut, and which may be shielded by a veneer block, layer of straw-board, or other means to protect the edge of the knife.

The operation is as follows: When handles a and h are brought together by grasping them tightly, the link D is brought down, and with it the togglejointed lever is straightened, the bolt is forced forward, and the cut is made.

A coiled spring, 50, serves to withdraw the knife-bolt after the cutting by forcing the bandles apart.

It is evident from the construction that the out of the knife may be readily and easily reversed by simply knocking out pivot-pin 17, Fig. l, turning the bolt H halfway round, and reinserting the pin.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-- In a grafting implement, the piece A, provided with handle a and bent end 12 c d, and the pivoted jaw or lever B, in combination with the link D, toggle-joint lever E F, sliding bolt H, and a knife, K, substantially as set forth.

CHARLES M. KINGSBURY.

Witnesses E. S. CARMICHAEL, W. 0. MURRAY.