US473976A - Mechanical movement for grain-binders - Google Patents

Description

(No Model.)

B. F. STEWART.

MECHANICAL MOVEMENT FOR GRAIN'BINDERS. No. 473,976. Patented May 3, 189.21.

A TTORIVE' UNITED STATES PATENT OFFICE.

BENJAMIN F. STEWART, OF CANTON, OI-IIO.

MECHANICAL MOVEMENT FOR GRAIN-BINDERS.

SPECIFICATION forming part of Letters Patent No. 473,976, dated May 3,1892.

Application filed February 26, 1890. $eria1N0.341,882. (No model.)

To all whom it may concern.-

Be it known that I, BENJAMIN F. STEWART, a citizen of the United States, and a resident of Oanton, county of Stark, State of Ohio, have invented a new and useful Improvement in Mechanical Movements for Grain-Binders, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, making part of this specification.

My invention relates to an improvement in mechanical movements for grain-binders and it consists in providing shafts and cranks constructed as hereinafter described and connected by a double pitman for the purpose of communicating a rotary motion from one shaft to another, both rotating in the same direction with a positive regular movement without the use of interjacent helpers or fulcrums.

The objects of my invention are to simplify the means of revolving the knotter-shaft in grain-binders, to lighten the structure, and reduce the initial cost.

With these ends in view my invention consists of the construction and combination of parts, as hereinafter described, and pointed out in the claim.

Figure 1 of the accompanying drawings is a view in perspective of a binder, illustrating my invention; Fig. 2, a side elevation, and Fig. 3 an end elevation.

Similar letters of reference indicate corresponding parts in all of the figures of the drawings.

As my invention is alike applicable to many of the well-known harvester-binders, I will proceed with the description thereof, referring to the binder parts only as conjunctional thereto.

A represents the binder-frame, in which is mounted parallel shafts B 0, having cranks D E on their outer ends, substantially as shown.

The shaft J will be known as the packershaft, 15 as the binder-actuating shaft, and O as the knotter-shaft. To provide a steady and uniform rotary movement of the knotter-shaft O a third crank F is provided, having its inner end loosely mounted on a stud G. The three cranks D, E, and F are of equal length, the wrist-pins at describing circles of equal diameter. A pitman H is provided, having one of its ends bifurcated or doubled, the prongs a adapted for a pivotal engagement with the cranks D F, and the other end for a similar engagement with the crank E on the knotter'shaft O.

In Fig. 1 I have shown my invention applied to a grain-binder where motion is transmitted from the packer-shaftJ to the binderactuating shaft B by means of cogged wheels K and L. The shaft J and wheel K, rotating over and out, as indicated by the arrow, for the purpose of giving the packers M the proper upward and outward movement, will rotate the wheel L and shaft B over and inwardly, as indicated by the arrow.

To rotate the knotter-shaft O in an opposite direction to the packer-shaft J and in the same direction of the binder-actuating shaft B, that the knotter wheel N may have the desired movement to tie the band and the discharge-arms O a downward and outward movement to discharge the bundles, the cranks D and F are provided, and the pitman or connecting rod H, adapted for and having pivotal engagement with said cranks D F and with the crank E, the rotary movement of the driving-crank D,through its connection with the pitman II, will rotate the crank E, which serves as a fulcrum to crank D, by which the driving-power is applied laterally, giving to the pitman an up-and-down and back-andforth movement and to the crank E and shaft C a rotary movement without the use of intervening helpers or fulcrums, the endwise movement of the pitman being parallel with the end portion a of the binder-frame A.

To rock the needle-shaft P to raise and lower the needle. Q, a crank R is mounted on the end of said shaft and is connected with the crank D by the link S.

In operation the driving-power is transmitted to the packer-shaft J, and the spurpinion K, which meshes into an external gearwheel L, connected by the shaft B to the crank D and by the forked ends of the pitman to the crank F, causing the cranks to revolve, which being connected by the pitman H to the crank E, which is rigidly connected to the knotter-shaft, the latter is caused to positively rotate in the same direction with the double cranks D and F, thus operating the knotter mechanism and the needle, whose thereof, a pitman H, having one end pivoted shaft is attached to the crank D by the crank to said crank and its opposite forked end piv- I 5 R and link S. oted to the cranks D and F, a needle-shaft P,

Having thus fully described the nature and a crank R, secured to the end thereof, and a' 5 object of my invention, what I claim as new, link S, pivoted to the crank R and to the end and desire to secure by Letters Patent, is of the crank D, substantially as set forth.

The combination of the packer-shaft J,pro- In testimony whereof I have hereunto set 20 vided with a gear-wheel, the binder-actuating my hand this 10th day of January, A. D. 1890. shaft B, provided with a gear-wheel in mesh BENJAMIN F STEWART 10 with the first-named gear-wheel, a stud G,

fixed to the frame, cranks D and F, secured Vitnesses: to the shaft B and stud G, respectively, a W. K. MILLER, knotter-shaft O, a crank E, secured to the end CHAS. R. MILLER.

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