US527295A

US527295A - Elevator

Info

Publication number: US527295A
Authority: US
Publication date: 1894-10-09
Anticipated expiration: 1911-10-09

Description

(No Model.)

J. W. SHAVER.

ELEVATOR.

No. 527,295. Patented Oct. 9, 1894.

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- UNITED STATES.

PATENT OFFICE.

JOHN W. SEAVER, OF ALLEGHENY, PENNSYLVANIA.

ELEVATQ R.

SPECIFICATION forming part of Letters Patent No. 527,295, dated October 9, 1894.

Application filed January 10, 1894. Serial No. 496,429. (No model.)

To whom it may concern.-

Be it known that I, JOHN W. SEAVER, of

Allegheny, in the county of Allegheny and State of Pennsylvania, have invented anew and useful Improvement in Elevators, of

wherein a movable leg is employed to carry the elevator chain or belt, and its object is to prevent the breaking of the coal as it is fed from the upper end of the conveyor.

To that end, it consists in an elevator having a movable leg, a carrier upon the log, a stationary chute near the upper end of the carrier, and a movable chute which is moved along the stationary chute as the elevator leg rises and falls.

It also consists in the construction and arrangement of parts as hereinafter more fully described and set forth in the claims.

In the drawings, in which similar numerals indicate corresponding parts, 2 represents the frame of the elevator-tower to which the movable leg 3, carrying the endless conveyor, is hung upon a pivot 4:, which passes through a slot in the leg and is supported in the frame work. To move the leg into the position shown in dotted lines in Fig. 1, I provide the tackle 5, which is fixed at the outer end of a hinged boom 6 and passes about a pulley 7 carried upon the movable leg, thence around a sheave 8 at the end of the boom, and thence to a Windlass 9. The upper end of the leg is provided with a receiving hood 10, into which .the material lifted from a boat 11 is discharged, andfrom which it passes through a lateral opening 12, shown in dotted lines in Fig. 1, into an inclined chute 13. This chute passes beneath rollers 14: carried upon one side of the elevator leg and is supported upon a brace 15 which extends between guide-rolls 16 secured in the frame-work, it having supporting struts extending from the lower end of the brace and secured to the end portions of the chute. To hold this chute in constant relation to the hood 10, I provide the tackle 17, which is secured at one end to the framework, passes thence over a sheave 18 at the lower end of the brace, and thence over suitable pulleys to a counterweight 19. This weight is sufficiently heavy to hold the chute constantly against the rollers 14:, and as the leg moves up and down this chute moves in lines parallel to the chute 13, into which it discharges, so that in no position is there any considerable fall for the coal or other material. The chute13 is open at its lower end, and is provided with two valves 22 opening over the

hoppers

26 and 27 and with a cross valve 23, the hoppers being provided with valves 24; opening over the conveyor 25.

If the material is not to be weighed, the central valve 23 of the chute is opened and the material passes directly to the conveyor through the chute 20.

If it is desired to weigh the material, one of the valves 22 is opened and the hopper which rests upon a scale platform 21 is filled. The valve is then closed and the other valve 22 opened and its hopper filled and weighed. The valve of the first hopper is then opened and the operation repeated.

The conveyor and spouts are so proportioned as to have a greater carrying capacity than the lifting capacity of the elevator, so that the material in the first hopper, can be weighed and discharged before the second hopper is filled, and the chutes are curved at their lower ends to reduce the velocity of the coal or other material sliding thereon.

The advantages of my invention will be appreciated by those skilled in the art, since in all positions of the leg the mouth of the movable chute is close to the stationary chute, and hence there is no breaking of the coal, while it is easily and quickly weighed without delaying the lifting or delivery of the material.

Many variations may be made in the form and arrangement of the parts without departure from my invention; since What I claim is- 1. The combination, in an elevator, of aleg ICO movable in a vertical direction and car-:- in

v y g elevator buckets,- a movable chute along which v the discharge end of the leg moves, a stationary chute, and means for moving the movable chute along the stationary chute as the elevator leg rises or falls;fisubstantially as de scribed.

2. The combination, in an elevator, of a stationary inclined chute, an inclined chute 10 bodily movable in a direction parallel therewith, and an endless conveyer having its delivery end movable relatively to the movable chute; substantially as described.

In testimony whereof I have hereunto set my hand.

JOHN W. SEAVER.

Witnesses: I

' W. B. OoRWIN,

H. M. GORWIN.