US374682A

US374682A - Cliffoed f

Info

Publication number: US374682A
Authority: US
Publication date: 1887-12-13
Anticipated expiration: 1904-12-13

Description

(No Model.)

O. P. KENDALL.

MILL STOCK FEEDER.

No. 374,682. Patented Dec. 13,1887.

D 12 tuba n u I WWW UNITED STATES PATENT OFFICE.

CLIFFORD F. KENDALL, OF STOCKTON, CALIFORNIA.

MILL=STOCK FEEDER.

SPECIFICATION forming part of Letters Patent No. 374,682, dated December 13, 1887.

Application'filed January 6, 1887. Serial No. 223,625. (No model.)

To all whom it may concern.-

Be it known thatl, CLIFFORD F. KENDALL, of Stockton, San Joaquin county, State of California, have invented an Improvement in Mill- Stock Feeders; and I hereby declare the following to be a full, clear, and exact description of the same.

My invention relates to that class of devices used for feeding mill-stock of various kinds to rolls, purifiers, 8tc.; and myinventiou consists in the construction and combination of devices, which I shall hereinafter fully describe and claim.

The object of my invention isto provide a simple and effective mill-stock feeder.

Referring to the accompanying drawing for a more complete explanation of my invention, the figure is a vertical section of my mill-stock feeder.

A. is the shell or housing of the feeder.

B is the box or hopper from which the millstock passes to the directing-chute G.

D is the receiver, into which the spout or chute directs the stock. The receiver, which consists of an open-backed casing, is pivoted to and suspended by abracket, E, at each end,

which is itself adj ustably secured to the housing of the feeder by means of the bolts 6, pass ing through the elongated slots 0, so that by adjusting the bracket at each. end the receiver may be set up accurately, as I shall hereinafter explain.

F is the rocker, consisting of acurved faced head, f, forming the rear wall of the receiver, to which is attached the shank f, pivoted at J, and adapted to receive a vibratory motion on its pivotal center by means of the hanger f having at its upper end an eccentric-strap, f, fitted over an eccentric, f, on the drivingshaftf. A spring), connected with the end of the shank and with the frame above, holds the hanger to its-position on the eccentric and prevents any lost motion. The curved head of the rocker is concentric with its pivot f and fits within the open back of the receiver, the lower edge or lip, d, of which bears by gravitation against the face of the rocker. In order to vary the degreeor force of this contact or pressure, and consequently to regulate the feed of the stock, I have secured to the lower front face of the receiver an arm, G, which carries a sliding weight, W, provided down.

with a set-screw, w, whereby said weight may be set at any given position on the arm,thereby changing the center of gravity of the receiver and causing it to bear against the rocker with more or less force, so that the passage of the stock may be morc or less retarded.

The face ofthe rocker is solid; but its sur face is preferably roughened by a wire-netting tacked to it for the purpose of rendering its action on the stock more certain as it feeds it H is a shaking-table mounted under the rocker and receiver. It has a straight or level portion, h, and an inclined portion, h.- It is secured at its upper end to the lower end of the rocker by means of a hinged joint, here shown as a flexible strap, h", secured to each. The lower end of the shaking-table is connected with a fixed block, I, by means of a hinged joint, such as is represented by the strap h, secured to said block and to said table.

In the upper portion of the shaking-table, and'directly under the feed-aperture through which the stock passes, is a screen, J.

The operation of my feeder is as follows: The stock passes from the box or hopper B into the chute G, from which it is discharged into the receiver D. Its weight in the receiver causes the separation of its lower edge, (I, from the face of the rocker, thereby forming a feedaperture through which the stock is forced by the vibrating rocker.

shaking-table, from which it is delivered to the rolls or other machinery. The width of the feed-aperture is determined in the first instance by the amount of stock in the receiver, and the effect of the weight of the stock upon the width of the feed-aperture is accurately adjusted and regulated by means of the sliding weight W upon the arm G, and which defines the ease of movement of said receiver under the weight. of the stock therein. The adjustable brackets E are for the purpose of accurately adjusting the receiver at each end,-so that its lower edge or lip, (1, throughout its length shall bear against the rocker. Theuneven or roughened face of the rocker, due to the attachment of the wire-netting, renders its operation certain and effective. It will be seen that as said rocker moves through an arc of a circle it imparts no motion to the receiver, which remains steady against its face. The

It then falls onto the vibratory motion of the rocker produces a corresponding vibration or rocking in the Shaking-table H, which moves upon its lower hinge, h where it is connected with the fixed block. There is a great advantage in this particular movement and arrangement of the shaking-table, in that its motion all takes place about its lower or delivery edge asa center, so that where the stock passes off from the table to the rolls or other machinery it is not agitated, but flows along in a steady and even sheet. The stock dropping from the dischargeaperture between the rocker and receiver and falling upon the screen J in the shaking-table is so sifted and broken up as to avoid all lumps. The vibratory movement of the table at its upper end causes the stock to spread out over its entire surface, and where it drops over the angle onto the inclined part 71. itpasses down in an even stream, being less agitated and less broken up as it approaches its discharge, at which point there is no motion of the table.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is- 1 p 1. In amill-stock feeder, afeed-hopper and a swinging receiver having its back open and forming a pocket in communication with the feed-hopper, in combination with the curved faced vibrating rocker operating in the open back of the pocket and against its lower edge, substantially as herein described.

7 2. In a mill-stock feeder, the combination of the pivoted gravity-receiver D, into which the mill-stock is directed, the vibrating rocker F, operating in the open back of the receiver receiver D, into which themill-stock is directed, and the vibrating rocker F, operating against it, as described, in combination'with the underlying shaking-table H, connected with the rocker at its upper or receiving end, and the block I, to which its lower end is secured, substantially as herein described.

4. In amill-s'tock feeder, the pivoted gravityreceiver, into which the mill-stock is directed,

and the vibrating rocker F, operating as described, in combination with theshakiiig-table H below, the flexible strap h between the upper end of said table and the lower end of the rocker, the block I, and the flcxible strap between the lower end of said table and said block, substantially as herein described.

5. In a mill-stock feeder,the pivoted gravityreceiver and the vibrating rocker operating in the open back of the receiver and against the lower edge, in combination with the block I, the shaking-table hinged at its upper end to the rocker and at its lower end to said block, and the screen Jin said table, substantially as herein described.

In witness whereof I have hereunto set my hand.

CLIFFORD F. KENDALL. \Vitnesses:

T. N. MOORE, R. E. VVILnoIT.