US270378A - Knotting mechanism for grain-binders - Google Patents

Description

Model.)

B. L. BRAGKEN.

KNOTTING MECHANISM PORGRAIN BINDBRS,

No. 270,378. Patented Jan. 9.1888.

WITNESSES INVENTOR war MCw/ j/o/af/ M CM/LW UNTTED STATES PATENT @FFIQE.

EDSON L. BRAOKEN, 0F DAWSON, ILLINOIS.

KNOTTING MECHANISM FOR GRAIN-BINDERS.

SPECIFICATION forming part of Letters Patent No. 270,378, dated January 9, 1883,.

(Modeh [0 all whom it may concern Be it known that I, Eosoiv L. BRAOKEN, of Dawson, Sangamon county, Illinois, have invented an Improvement in Knotting Mechanism for Grain-Binders, of which the following is a specification.

The. invention relatesto knotting mechanism having certain parts thereof combined and arranged as hereinafter described. I I

Figure l of drawings is a, side view of the knotter and an under side view of the disk, and Fig.2 an end elevation of the knotter. Fig. 3 shows the spindle detached and in side elevation. Fig. 4 is a cross-section of the spittdle on line a: 00 of Fig. 4. Fig. 5 shows a modifled forln of spindle in cross-section.

In the drawings, A represents the frame, having flanges a a on the upper part, with holes by which it may be attached to the hinder-fraine. I

I) represents a bearingfor the knotting-shaft, and 7c is rear flanges, apertured to receive the cord-clampingslide. fisan inclined cam-flange on the upper side of the hearing I); and U, a cam-flange above the hearing I), with a recessed cam-surface, as shown.

B represents the knotting-shat't, extended through the bearing 1) and flange U, and having a bevel-pinion, I, above the flange. This pinion rests upon a cam-disk, H, secured on flange U by a screw, s. The shaft B consists of two semi-cylindrical spindles, c (1, formed at their lower ends with bills 0 d, extending therefrom at right angles. At '1, on the spindle c, is a stud carrying a friction-ro1ler,tn, that travels beneath the cam-surface of the flange U. The pinion I is secured to the upper end of the spindle d, and ashoulder, w, on the spindle d, beneath the bearing b, serves, in'connection with the pinion, to prevent endwise movement of the spindle, While the spindle 0 is free to move endwise for opening and closing the bills 0 d. The spindle d is tightened to take up wear by the disk H, which is formed on its lower face with a beveled projection, h, working in a recess, 72 in the upper face of flange U, so that by turning and setting the disk any desired adjustment may be obtained.

D represents aslide, movable endwise in flanges it It, and having a right-angled arm at its upper end, and at its lower end an angular foot or projection, t. The arm 0 of the slide I) lies beneath the recess 9 of the cam U and in the path of the roller an, while the projection t is shaped to act with a shoulder on the flange k, and a shear-blade 02, also fixed on flange k of the frame A to sever the cord and hold the end. lisa U-shaped spring, fixed on frame A, and engaging the slide 1) to holdup and raiseit after the roller in has passed the flange e.

In starting the Operation the bills stand as shown in Fig. l of the drawings, and the cord, as shown atp, passes from the holder t, where the end is held over the bills 0' d, and the usual guide,0,to and around the bundle, thence back over the guides and bills, and then over .the holder-t. As the shaft B revolves, the bills are retained closed by the contact of roller m with the cam-flange U, and the cords being at the angle shown in Fig. 1, the bills pass over them and thus loop the cords around the bills.-

When the shaft B has made about a half-revolution the roller an, having reached the inclined cam-projection -f, is moved up into the arm 0 the slide springs up, the hand portion of the cord is thereby carried against the fixed spear and severed, and the end of the supply caught as the old end was. When the pressure on the bundle is released the loop is drawn from the bills by the expansion of the bundle and its removal. The loop is drawn over the ends held by the bills and the knotis tightened. The bills hold the ends until, the knot being tight, the strain releases them. The bills may be roughened, if desired, to prevent the ends from slipping of until the loop is drawn tight.

In Fig. 6 of the drawings I have shown a (yer-shaft with its principal spindle dgrooved jection f of the supporting-frame, as and for lengthwise to receive the sliding spindle c.

Having thus described all that is necessary to a full understanding of my invention, what I claim as new is 1. In a knotting mechanism for grain-binders, the revolving shaft B, composed of a relatively fixed and. movable spindle carrying respectivelya fixed and a movable bill,the movable spindle having, a lug, r, in combination with the spring-pressed slide D, having catch t and flange c, the cam-disk U, and cam-prol I I I the purpose specified.

2. In knotting mechanism, the disk II, having cam-projection h, in combination with shaft B, having shoulder w and pinion I, and

flange U, having recess h and bearing, I), as

and for the purpose specified.

EDSON LEE BRACKEN.

Witnesses J. H. CONSTANT, JAs. W, PATTON.

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