US258193A - brown - Google Patents

Description

(No Model.) v 3 SheetsSheet '1.

H. F. BROWN.

. FEED RBGULATING DEVICE.

No. 258,193. Patented May16, 1882.

by A w N4 PETERS Pholo-Lllhogmphar. Washkngion. D.'C.

(No Model.) v 3 Sheets-Sheet 2. H. F.. BROWN;

FEED REGULATING DEVIGE. No. 258,193. Patented Mayl6, 1882.

W Imew 4 MM 2x2.

N. PETERS, Fhulolilhognphen washimun. I18.

(No Model.) 3 Sheets' Sheet 3.

H. P. BROWN.

FEED REGULATING DEVICE.

No. 258,193. Patented May 1-6, 11-882.

UNITE STATES PATENT OFFICE.

HOMER F. BROWN, OF ELKHART, INDIANA, ASSIGNOR TO HIMSELF AND WILLIAM FORXVARD, OF SAME PLACE.

FEED-REGULATING DEVICE.

SPECIFICATION forming part of Letters Patent No. 258,193, datedMay 16, 1882,

Application filed December 31, 1881. (No model.)

To all zrhom it may concern:

Be it known that I, HOMER F. BROWN, of Elkhart, in the county of Elkhart and State of Indiana, have invented a. new and useful Improvement in Feed-Regulating Devices; and I do hereby declare that the following is a full, clear, and exact description ofthe same.

My invention relates to an improvement in automatic feed-regulators, intended especially for feeding middlings to a purifier, but adapted for use under all circumstances Where an uninterrupted and automatic feed is required.

The invention consists in the peculiar tension-adjusting devices in combination with an automatic feed, as more fully hereinafter described, and in the particular construction and arrangement of the various parts, all as fully hereinafter explained.

In the drawings, Figure 1 is a top view. Fig. 2 is a front view. Fig. 3 is a cross-section.

A represents the hopper, which is of the ordinary or any suitable construction; and B is thefeed-rollcr journaled in the bottom of the hopper, and partly filling the discharge-openingl of the same.

The valve or cut-0E O is pivoted by means of arms 2 in the end pieces, A, of the hopper, so as to completely close the discharge-opening when in its normal position, and is so placed as to open upward. The amount of resistance offered by the cut-off to the mass of material entering the hopper is partly regulated and its return to a normal position effected by a epilspring, 3, on the journal 4 of the arm 2, the free end of which spring is adapted to engage with the teeth of racks 5 5, secured to the end pieces of the hopper. Motion is given the cutoff bymeans of a pressure-board, D, and intermediate mechanism.

An opening, 7, is made in the inclined side of the hopper, and in this opening are bearings for a pintle, 8, which forms the pivot for a curved lever-arm, 9. The pressure-board may be attached directly to the inside end of this arm; butin order to render the said pressureboard adjustable at different angles, I prefer the attachment illustrated in the top view.

The inner end of the lever-arm 9 is formed into an eye, 10, having its inner surface filed into radial serrations or grooves.

The pressure-board is attached to a rod,11, having a similarly-serrated eye, 12. The eyes are centrally screw-threaded to admit a tightening-bolt, which clamps them firmly together, a locking-pin, 13, being inserted between them and held by the serrations, thereby preventing the pressure-board from turning independently of the arm 9. The removal of the locking-pin permits the pressure-board to be set at a different angle and locked there.

The curved arm 9 extends down outside the hopper, where it is formed intoa plane bearingsurface to operate in connection with the cut-ofl'.

A standard, 14, is secured to the cut-off, through which a screw-thread is tapped for the admission and adjustment of a screw-bolt-, 15, against which the lower end of lever-arm 9 bears. The resistance of the cut-oft'is gaged by' the screw 15.

The pressure-board is forced constantly upward against the pressure of the material entering the hopper by the tension of a stilfcoilspring, 25, one end of which is rigidly connected to the hopper, an d the other to a screw-bolt, 16, working in a thread tapped through the curved arm 9 at 19. A nut, 18, regulates the tension of this spring.

In the operation of the device the middlings falling upon the pressure-board depress the the same, and through the lever-arm. 9 raise ,the cut-off, permitting the material to flow through the discharge-opening. As the pressure-hoard is further depressed, the dischargeopening is widened, permitting a greater quantity to escape. Should the supply diminish, the spring 25 returns the pressure-board to its former position and the spring 3 to close either partially or entirely the discharge-opening.

It is evident that the facilities for adjustment in this device render the feeding exceedingly uniform and accurate. It may be accomplished either by changing the angle of the pressure-board and then altering the tension of the springs 25 and 3, or the angle of the board may be left unchanged and the tension altered accordingly. These various relative adjustments place the device entirely under the control of the operator, and by their means I accomplish the accurate, steady, and uniform feeding of the material.

Having thus described my invention, What I claim is 1. In a feed-regulating device, the combination of the hopper, the pressure-board, the pivoted lever 9, the tension-sprin g 25, and the pivoted cut-off having an independent tension device.

2; In a feed-regulatin g device, the combination of a hopper, a cut-off, a pivoted lever, a pressure-board pivoted independently to the said lever, and a locking device.

3. In combination, the pressure-board, the pivoted lever-arm 9, having the serrated eye, the arm 11, having the correspondiugly-serrated eye, the screw-bolt, and the locking pin.

4. In combination, the pressure-board, the

pivoted lever-arm 9, tl1e cutoff, the standard 14, and the bolt 15, substantially as described.

5. In combination, the pressure-board, the lever-arm 9, the pivoted cut-oft, the spring 25, attached to screw-bolt 16, and the nut 19.

6. A feed-regulating device consisting of a hopper, an adjustable pressure-board, a pivoted lever connected to the hopper, a spring to return said lever and board to normal position, a pivoted cut-oft, and a spring for closing the cutoff when the pressure-board is free.

In testimony whereofI have signed my name to this specification in the presence of two subscribing witnesses.

HOMER F. BROWN. Witnesses:

DELos N. WEAVER, 'I. N. CONRAD.

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