US603978A

US603978A - William stephenson

Info

Publication number: US603978A
Authority: US
Publication date: 1898-05-10
Anticipated expiration: 1915-05-10

Description

(No Model.)

W. STEPHENSON. THRESHING MACHINE FEEDEIEL.

No. 603,978. Patented May 10,1898.

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'll'iarrn TATES WILLIAM STEPHENSON, OF MORRIS, CANADA.

. THRESHlNG-MACHINE FEEDER.

SPECIFICATION forming part of Letters Patent No. 603,978, dated May 10, 1898. Application filed March 17, 1897. Serial No. 628,038. (No model lPatented in Ganada January 28, 1896, No. 51,157-

To aZZ whom it may concern:

Be it known that I, WILLIAM STEPHENSON, a subject of the Queen of Great Britain, residing at Morris, in the county of Provincher, Province of Manitoba, Dominion of Canada, have invented certain new and useful Improvements in Threshing-Machine Feeders, of which the following is a specification, and for'which I have obtained Letters Patent in the Dominion of Canada on the 28th day of January, 1896, No. 51,157.

Myimprovements relate to an arrangement of conveyers which carry the bundles of grain to the threshing-machine cylinder and which are actuated through automatic speed regulating and checking devices, so as to prevent any choking of the machine in feeding. In the accompanying sheet of drawings, which forms a part of this specification, Figure 1 is a top view showing one end of a threshing-machine together with my automatic feeder. Fig. 2is a longitudinal section along the line 00 0c of Fig. 1. Fig. 3 shows the device for varying the speed of the lower conveyer.

The feeder consists of two suitably mounted and driven sets of endless aprons, each made up of belts and cross-slats and provided with knives or teeth. These aprons are located one above the other and convey the bundles of grain to the threshing-machine cylinder A. The lower apron B is the longer of the two. It consists of two sets of endless belts or chains 5 b, to which cross-slats s are attached. These slats have projecting teeth t. A slotted platen 19 covers and protects the carriers. The bundles of grain are placed upon this platen. The teeth of the lower apron project through the slots in the platen and engaging with bundles of grain move them under the upper apron G. This apron is shorter than the lower apron and travels more rapidly. It is also protected by a slotted platen p, which is below it. Knives 7c are carried by the slats of this apron and project downwardly through the slots in the platen. The framework which carries the upper apron is hinged at its rear end to the frame of the machine, the shaft 6, through which the apron is driven, serving as the hinge. At the front end the traveling apron and its supportingframework are free to rise or fall according to the amount of grain piled upon the lower apron and carried by it under the end of the upper apron.

The cylinder of the threshing-machine is driven by power in any suitable way. The upper apron is also driven by power. For convenience the power is taken from a small pulley g on the shaft of the threshing-machine cylinder by the belt h and pulleys v. and j on a counter-shaft 2' and belt to the shaft Z. The lower apron is driven through a pair of friction-wheels. Of these the upper one mis mounted on and rises and falls with the upper apron, as shown. The power to drive this wheel comes from the shaft Z and through the apron. The power may, however, be communicated to this wheel in any other way. The lower friction-wheel is formed of two disks n n, between which the rim of the upper friction-wheel is engaged. Both of the disks revolve with the shaft 11 by which they are carried; but at least one of them is left free to slide longitudinally and is pressed toward the other by a spring 0. From a pulley g on the friction-wheel shaft 10 the power is transmitted by a belt 0" to the shaft v which drives the lower apron B.

The operation of the feeder is as follows: The bundles of grain are placed upon the lower platen p and pushed forwardly by the teeth 15, projecting from the lower apron. These slide the bundles under the platen 0, when knives K,because of the greater speed with which they are carried by the upper apron C, out the bands of the bundles and cooperate with the lower apron to carry the grain forward to the cylinder of the threshing-machine, at the same time opening out the bundles. The normal speed of the lower apron is such that it will feed the grain in the right quantity when it is piled on the lower platen to such a depth that it will not lift the upper apron. When piled higher, the upper apron will be lifted, and this will vary the position of the friction-wheels, so that the wheel m will engage with the disks n nearer their periphery, and thus the lower apron will be I.

rengage the friction-wheels and again start the lower apron.

By mounting the band cutting knives K upon the apron 0 instead of upon a roller the bands are first cut and the knives moving with and faster than the grain through a considerable distance and close up to the threshing-cylinder thoroughly open up the bundles and deliver them to the threshing-cylinder. Thus the knives not only cut the bands, but feed the grain.

Having thus described my invention, what I claim is 1. In a feeder for threshing-machines, the combination with a feeding-apron, of an auxiliary feeder mounted over the apron and capable of moving therefrom, and a differential friction-gear for driving the apron and consisting of two friction-Wheels the relative position of which is varied by the position of the auxiliary feeder, whereby the apron is driven with a speed varying inversely with the distance separating the apron and the auxiliary feeder, substantially as described.

2. In a feeder for threshing-machines, the combination of two aprons between which the grain is fed, one of the aprons being movable whereby it may be moved away from the opposite apron by the grain, and a differential frictional gear driving one of the aprons and consisting of two friction-wheels, the relative position of which is varied by the position of the movable apron, whereby the apron is driven with a speed varying inversely with the distance separating the aprons, substantially as described.

3. In a feeder for threshing-machines, the combination of two aprons, between which the grain is fed, a, pivoted frame carrying one of the aprons, whereby it may be swung away from the opposite apron by the grain, a friction-wheel mounted on the pivoted frame and driven from the pivoted apron, and a frictiondisk bearing thereon and driving the opposite apron, whereby the relative position of the wheel and disk will be changed, and the speed of the apron driven thereby will be varied inversely with the distance separating the aprons, substantially as described.

4. In a feeder and band-cutter the combination of two traveling aprons, a pivoted frame for supporting one of the aprons, knives upon one of the aprons, means for driving one of the aprons, adifferential gear between i the two aprons, whereby one is driven by the other at a difierent and variable speed, the gear consisting of two friction-wheels the relative position of which is determined by the position of the frame, substantially as described.

5. In a feeder and band-cutter, the combination of two traveling aprons, a pivoted frame for supporting one of the aprons, knives upon one of the aprons, means for driving one of the aprons, a differential gear between the two aprons whereby one is driven by the other at a different and variable speed, the gear consisting of two disks and a wheel engaging therewith, the relative position of which disks and wheel is determined by the position of the frame, substantially as described.

b. Ina feeder and band-cutter, the combination of a lower apron, a pivoted frame mounted thereabove, an upper apron contained therein within the frame, knives upon the upper apron, and a differential gear consisting of two friction-wheels, the relative position of which is governed by the position of the movable frame, to communicate motion to the lower apron, whereby the lower apron is driven from the upper apron in a reverse direction, and at a speed slower than that of the upper apron, the speed varying inversely with the distance between the aprons, substantially as described.

7. In a feeder and band-cutter for threshingmachines, the combination with an upper and a lower apron, driven in opposite directions, of a frame pivoted at its rear end and carrying the upper apron, the grain being fed between the two aprons, cutting-knives upon and moving with the pivoted apron, and a differential gearing controlled directly by the position of the pivoted apron to drive the lower apron at a speed varying inversely with the distance separating the aprons, whereby the bands of the bundles will be cut and the bundles opened up and fed to the thresher, and the aprons will be separated upon excessive feed of bundlesto the lower apron, substantially as described.

Signed by me, at Toronto, Canada, this 29th day of January, 1897. 4

WVILLIAM STEPHENSON. Witnesses:

WM. LAIDLAW, FRED. LEAR.