US408645A

US408645A - House

Info

Publication number: US408645A
Authority: US
Publication date: 1889-08-06
Anticipated expiration: 1906-08-06

Description

(No Model.)

J. S. WOODHOUSE. KNOTTER FOR GRAIN HARVESTING MACHINES.

Patented Aug. 6, 1889'.

f L MW W I WHZMW 4 j a UNITED STATES PATENT OFFICE.

JOHN SENIOR VVOODHOUSE, OF AMBERLEY, CANTERBURY, NEW ZEALAND.

KNOTTER FOR GRA|N- HARVESTING MACHINES.

SPECIFICATION forming part of Letters Patent No. 408,645, dated August 6, 1889.

Application filed June 25, 1889- Serial No. 315,515- (No model.)

To all whom it may concern:

Be it known that 1, JOHN SENIOR W001 HOUSE, a subject of the Queen of Great Britain, and a resident of Amberley, provincial district of Canterbury, in the Colony of New Zealand, have invented certain new and useful Improvements in Knotters for Grain-Harvesting Machines, of which the following is a specification.

My invention relates to an improved knotter for twine-binding in reaping and harvesting machines.

My knotter consists of one piece or part only, which may be of steel or other metal or material of suitable hardness, its general form being cylindrical, and having slots and grooves varied to suit difierent machines, and it is operated in the same position relatively to the other parts of the machines as are the knotters now in vogue.

In the drawings, Figures 1 to 4 are side Views of my improved knotter, illustrating four stages in the formation of a knot. Fig. 5 is a front end view of'the knotter.

The shaftA is provided at itsend with the one-part knotting cylinder or head B, which extends at substantially a right angle from the said shaft.

The knotter receives an intermittent rotary motion in one direction from a wheel in the usual manner; and hence I do not deem it necessary to show the driving mechanism, as my invention does not relate thereto, but is applicable to any of the machines now in vogue.

The knotting-eylinder B is provided with a transverse opening or slot 1, preferably inclined somewhat to the longitudinal axis of the cylinder, and also with an inclined slot 2, opening from the top of the cylinder or the side toward its shaft into the opening 1 and inclined backward in a direction from the cylinder-point toward the heel. The two slots 1 and 2' form a hook 3, carried by the point or toe 4 of the knotting-cylinder,which .hook lies beneath the overhanging lip 5,which is above the slot 2 and back or in rear of the toe 4. I

6 6 are grooves formed in the outside faces of the solid toe 4 of the cylinder and extending from the ends of the opening 1 to the point of the toe. These grooves are by preference comparatively deep adjacent to the ends of the opening 1, but becoming shallower and broader as they approach the point of the toe. The upper side of the toe 4 is by preference sloping or curved downward toward its end, is nearly circular in cross-section, and tapers toward its point, though I do not consider these features essential.

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 strandsmcof cord lying over the knotting-cylinder between the opening to 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 as 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 5 and forced into the slot 2, and, by reason of the inclination thereof, into the opening 1 back of the hook 3. Vhile the cord is in this position, it is severed by the cutter, and the ejector begins its operation in the usual manthe grooves 6, in which the end portions of the cord lie, makcs it very easy for the knot to slip off from the cylinder as the gavel is being ejected.

As described, the grooves 6, onat least the one on the side of the cylinder shown in Figs. 1 and 3, is preferably deeper and narrower at its inner or rear end than at the end near the point of the knotter. The reason for this is to permit the portion of cord surrounding the knotting-eylinder to easily slip over the portions of the cord lying in the deeper parts of the groove or grooves, but to'be retarded by frictional engagement therewith as it approaches the end of the toe and thus tighten the knot.

The overhanging lip 5, extending, as it does, over the opening to the slot 2, insures that the cord, as it slips from the shank portion of the cylinder onto the toe, shall not slide into the slot, which would interfere with the formation of the knot and the delivery of the gavel.

The knotter which I have described dispenses with the use of all pivoted or sliding parts, and thus reduces the liability of disarrangemcnt and uncertain action, while at the same time it performs its work with eertainty, precision, and ease.

Vhat I claim is- 1. A knotter consisting of a cylindrical body projecting laterally from a revolving shaft an (1 having a transverse opening, and a slot extending from said opening in an inclined direction to the top edge, leaving a solid outer end having an inclined upper face, substantially as set forth.

2. A knotter consisting of a cylindrical body or head projecting laterally from a revolving shaft, with a transverse opening through the body thereof, and an inclined slot extending from the opening to the top edge, and having a solid end inclined at the top, with grooves at the opposite sides of the latter, substantially'as set forth.

I11 testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses. 4

JOHN SENIOR \VOODIIOUSE.

\Vitnesses:

.T. S. BARKER, G. P. KRAMER.