US450346A

US450346A - House

Info

Publication number: US450346A
Authority: US
Publication date: 1891-04-14
Anticipated expiration: 1908-04-14

Description

(No Model.)

A. E. WOODHOUSE.

GRAIN BINDER.

N0. 450,346. Patented Apr. 14,1891.

INVENTOR UNITED STATES PATENT Prion.

ALBERT ERNEST YVOODHOUSE, OF AMBERLEY, NEW ZEALAND.

GRAIN-BINDER.

SPECIFICATION forming part of Letters Patent No. 450,346, dated April 14, 1891.

Application filed April 10, 1890- Serial No. 347,393. (No model.) Patented in New Zealand April 17, 1889, No. 3,644, and in England August 9,1889, No. 10,716.

To all whom it may concern.-

Be it known that I, ALBERT ERNEST WooD- HOUSE, asubject of the Queen of Great Britain, and a resident of Amberley, in the Provincial District of Canterbury, in the Colony of New Zealand, have invented certain new and useful Improvements in a Grain-Binder, of which the following is a specification.

My invention relates to an improved knotter for twine-binding in reaping and harvestin g machines; and it consists in a single piece or part mounted upon an intermittently revolving or vibrating shaft and provided with a suitable slot or opening for engaging the twine.

This invention has been patented to me in New Zealand, No. 3,644, dated April 17, 1889, gtnjdsigigGreat Britain, No. 10,716, dated August Referring to the drawings, Figures 1 to 4 are side views of my improved knotter, illustrating four stages in the formation of a knot, and Fig. 5 is a front end view.

The knotting cylinder or head'B is mounted upon the end of a shaft A and extends 1aterally therefrom at substantially a right angle with the shaft. The shaft A receives an intermittent rotary or vibratory motion from a wheel or sector-gear in the usual manner. Asthere are numerous well-known forms of driving mechanism for this purpose, I have thought it unnecessary to illustrate any, as my invention does not relate thereto.

The knotting-cylinder B is preferably circular in section and tapered or conical at its outer end. A transverse groove or slot is formed in the side of the cylinder at or near the point where it begins to taper. This slot is of such size in cross-section that two strands of cord will nearly or quite fill it withoutprotruding. In its longitudinal direction it is preferably spiral or inclined upwardly away from the shaft A, supposing the shaft to extend vertically from the head B, for purposes of description. The upper end of the slot terminates in the tapered upper surface of the head. The bottom of the slot is preferably made wider and deeper at its upper end, as shown 'at 3, so that the strands of cord within the slot at this point may ofier no resistance to the passage of the loop over them.

In its transverse direction the walls of the slot are inclined away from the shaft and toward the tapered end of the head, thus forming an undercut portion or lip 4 upon its outer side.

The operation of tying the knot may now be understood. In Fig. 1 the position of the cord is shown just after the needle has encircled the gavel and delivered the cord to the grasper or holder and before the knotter has begun to revolve, the strands m w of cord lying over the knotting-cylinder between the slot- 2 and the shaft A. Fig. 2 shows the position of the parts after the knotter has made a half-revolution, the strands m being twisted or turned once around the shank of the cylinder. In Fig. 3 the knotter is shown as having completed its revolution, coming back to the position shown in Fig. 1. During the. latter half of the revolution the strands of cord between the cylinder and the grasper or cord-holder are caught under the overhanging lip 4 and forced into the slot 2. While the cord is in this position it is severed by the cutter, and the ejector begins its operation in the usual manner. Fig. 4 represents the knot being stripped from the knotter, the free ends of the cord formed by the action of the cutter being still held by the hook 4, which causes them to be drawn through the loop of the knot The tapering form of the end makes it very easy for the knot to slip off from the cylinder as the gavel is being ejected.

My invention is particularly applicable to machines in which the knotter makes a complete revolution forward and then backward, instead of always revolving in the same direction, as the backward movement aids the ejector in stripping the knot from the knotting-cylinder and-releasing the cut ends from the slot, it being understood that in the forward movement the slotted side of the knotter is in front, and vice versa. v

Without limiting myself to the precise construction shown, I claim- 1. The combination, Wi th an intermittentlyrotating shaft, of a knotting-head having a transverse slot in one side thereof, said slot being inclined away from said shaft to form a lip 4, substantially as described.

2. The combination, with an intermittentlyrotating shaft, of a knotting-head having a spirally-disposed slot in one side thereof, said slot being inclined away from said shaft to form a lip 4, substantially as described.

3. The combination, With an intermittentlyrotating shaft, of a knotting-head having a tapered end and a transverse slot terminating at one end in the tapered portion, said slot being inclined away from said shaft to form a lip 4, substantially as described.

4;. The combination, With an intermittentlyrotating shaft, of a knotting-head having a