US991677A

US991677A - Ore-feeder.

Info

Publication number: US991677A
Application number: US61190811A
Authority: US
Inventors: Enos A Wall
Original assignee: Individual
Current assignee: Individual
Priority date: 1911-03-02
Filing date: 1911-03-02
Publication date: 1911-05-09
Anticipated expiration: 1928-05-09

Description

E. A. WALL.

ORE FEEDER- APPLICATION FILED 11511.2, 1911.

991,677. Patented May 9;; 1911.

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To all whom it may concern:

UNITED STATES PATENT OFFICE.

ENOS A. WALL, OF SALT LAKE CITY, UTAH.

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Specification of Letters Patent.

Patented May 9, 1911.

, Application filed March 2, 1911. Serial No. 611,908.

' plunger will be forced slowly forward to feed the oreand then given a quick return movement.

A further object of the invention is to,

provide means for regulating the length of stroke of the plunger, and also to regulate v the force of its return movement.

or washer 0, while in rear of the These objects I accomplish by the construction shown in the accompanying drawing, in which-the figure is a sectional side elevation of a feeder containing my improvements. I p

A designates a frame provided with a hopper A, for the material to be fed. The bottom of the hopper inclines down to the outlet chute A v c B, designates an inclined plunger working across the outlet at the chute A, to push out through the chute the material descending thereon, as shown in the drawing.

The plunger rod, B, passes rearwardly through a guide G mounted on. the framework, and 1s rovided in front thereof with a bumping co ar 0, having a rubber facing guide'C the plunger rod is provided with a he retractin spring D, bearing against the guide an against a. hand-nut D, by means of which its tension may be regulated.- To the rear end of the plunger rod is connected by nuts 6, b, a vertlcally disposed yoke 13*, through the apertured opposite end of which yoke extends freely the threaded outer plunger rod member B provided within the yoke with a strong helical spring 6 held between a collar or nut b, on the inner end. of the %lunger member B and the end of the yoke The plunger member 13* is provided against the outer side of the yoke B with a handnut b by turning which the member B may be adjusted in and out oi the yoke to shorten or.len hen the plunger rod as.

a whole. The spring I) .is strong enough to hold the nut 6 against the yoke at all times so that there will be no relative movement during ,the reciprocation of the plunger; the

- purpose of the spring I) being to hold the parts rigidly connected while at the same time permitting of adjustment of the member B by the nut b even when the machine is in operation. The lower bar of the yoke B works in a guide recess a, in a cross-bar A, of the. frame, which holds it from turnmg.

The outer end of the plunger member B, is provided with a suitable head 6, against which works the rotary cam E, mounted on a shaft E, having a driving pulley E.

It will be seen that I have provided a construction specially adapted to the rapid feeding of ores, owing to the quick return of the plunger. This spring retract-ion, instead of retracting by an eccentric, of the plunger effects a more nearly continuous feed to the crusher, and this return movement may be regulated while the machine is in operation, by the hand-nut D. The amount fed by the plunger may be regulated by turning the nut b to lengthen or shorten the throw of the, plunger.

- he plunger rod is sectional and extensible so as to regulate the throw of the plunger, but its two sections are rigidly held against any relative movement except when the nut 6 is turned.

What I claim is:

1. The combination, with a hopper having between the member B and the yoke B member or section extending freely through the opposite end of the yoke, a spring on the inner end of the outer lunger rod member and bearing at one en against the inner side of the yoke, and at its other end bearing against a part on the said outer section, a nut on the outer plunger rod section against the outerside of the yoke, by turning which the plunger rod may be lengthened or shortened, a retracting spring for the plunger rod, and a cam enga the outer end of the plunger-rod to move it-m against its retracting spring and suddenly release it.

2 The combination, with a hopper having .an outlet at its lower end, of a plunger-working across said outlet, a two-part plunger rod, a guide for the outer rod member, a bumper on the 'rod member to cushion its inward movement, a retracting-spring on H said rod member, a nut on the said rod mem-' her to compress the spring against the outer side of the guide, a yoke-fixed to the'outer end of the inner rod-member and through the opposite end of which the opposite rod member freelypasses; a collar on theou'ter jecting-spring and suddenly release-it.

3. The combination, with a hopper having anoutlet, of a plunger working across said outlet, a sectional extensible plunger rod having a spring tending normally to move the sections together, an adjustable nut on one section holding it from inward movement by;the spring, on the other section, and

In testimony whereof I affix my signature in presence of two witnesses.

ENOS A. WALL.

Witnesses:

R. M. PARKINs, GEO. H. EVANS.

said spring being strong enough to hold the rod-sections together to work as a single rod, 'and means for actuating the plunger rod.