US478999A - Elevator - Google Patents

Description

3 Sheets-Sheet 1.

y(No Model.) Y v P. D. HARPER.

ELEVA'TOR.

No. 478,999. Patented July 19, 1892.

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P. D. HARPER.

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P. D. HARPER.

ELEVATOR.

No. 478,999. Patented July 19, 1892.

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AUrviTnn STATES PATENT OFFICEG PLEASANT DONOVAN HARPER, OF FULLERTON, ILLINOIS.

ELEVATOR.

SPECIFICATION forming part of Letters Patent No. 478,999, dated July 19, 1892. Application filed April 25, 1892. vSerial No. 430,561. (No model.)

To all whom t may concern:

Be it known thatl, PLEASANT DONOVAN HARPER, a citizen of the United States, residing at Fullerton, in the county of De Witt and State of Illinois, have invented certain new and useful Improvements in Portable Grain, Coal, and Vegetable Elevators by Lever- Power; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

My invention has relation to elevators; 'and it consists in the novel construction and arrangement of its parts.

My invention is designed to elevate a wagon-bed and dump its contents into a crib yor other receptacle.

In the accompanying drawings, Figure l is a front elevation of my invention with the wagon-body drawn to the top of the elevator. Fig. 2 is an end View of my elevator.- Figs. 3 and 4 are detail views. v

The following is a description of my invention. Y

The framework A is preferably of wood, and is constructed of beams and braces of sufficient length and strength to meet the desired ends. Between the two end upright beams and passing through the center upright is journaled in proper bearings au axle 03,011 which aud near each end are rigidly secured spools a', to each of which is attached one end The upper ends of said cables each pass over pulleys a3 a4, and are each secured to the center of the upper cross-pieces b, Fig. 3, of the wagon-bed lifter B. Said pulleys a3 a4 are secured in proper hangings, which are in turn secured to cross-pieces a5 in the upper part ot' the frame. Y

The wagon-bed lifter B is composed of fron and rear cross-pieces b', in the ends of which are pivoted elbows b2, provided with strengthching-braces b3, upper cross-pieces b, and side chains b4, the lower ends of which are secured to the lower outer ends of the elbows bwhile their upper ends are hooked to the outer ends of the pieces b. When the wagon is driven into the lower part of the frame, the front and rear pieces b are put under the body. The elbow-pieces b2, embracing the sides of the same and the chain h4, are hooked to the upper cross-pieces b, so that when the cables a2 are pulled on said braces clamp the wagonbody tightly and it is ready to be hoisted to the top of the frame.

The gearings which operate the cables are situated below and are described as follows: In addition to the spools d there are rigidly secured, one ou each side of the center upright E, ratchet-wheels c and levers d. (See Figs. l and 4.) Each one of said levers d is provided with a dog fl', adapted to catch into the teeth of said ratchet-wheel c. To the rear end of each of said levers d are pivoted short levers d2. To the lower free end of said short vers is pivoted the lower end of an arm cl3, while its upper end is pivoted to the dog d. In the upper end of said lever d2 is hooked one end of arod d4, the other end of which is hooked into the upper end ot' a lever d5,pivoted to the lever d, the arm d6 of said lever d5 being held up by a small spiral spring dl. The lower end of said lever is extended downward, forming a foot d8. Above the said ratchetwheel c and to the center beam E is secured a center bearing e and end bearings e. In said bearings is secured a rod e2, on which are pivoted dogs e3, the noses or" which are adapted to catch in the notches of the ratchet-wheels c and prevent said ratchet-wheels, andconsequently said spools, from turning backward when the levers Clare raised to take anew grip. Said dogs c3 are held down to their work by springs e4, the upper ends ot' which being secured to the braces e and theirlower ends to the said dogs by bolts e5. i

To the lower face of the cross-beam F are secured small pulleys f, and to the front face of the beam E are secured small pulleys f', and to each' side of said center beam E are pivoted levers f2, and to the center of each of said levers is secured one end of a cordf, the other end of which passes up over the pulleys f and f and down and are secured to the dogs e3.

In the upper end ofthe frame isa chute G, the outer end of which is hinged to a crosspiece g, so that when not in use its inner end IOO will hang down in the traine. Said chute is wide enough to receive one end of the wagonbody H, and when the wagon-body is hoisted to its place a man ascends the ladder and raises the innen end of said chute by means of the hooks and chains Q and secures it in place by hooking the said hooks over the upper edges of the wagon-body. To the end of the said framework and just under the mouth of the chute G is secured an additional chute I, and to the rear end of said additional chute is attached by means of hooks and chains fi still an additional chute J.

The operation of my invention is as follows: The wagon is driven into the framework of my elevator. The body-hoister B is put in position, and the body of the wagon is then ready to be hoisted. The operator then presses down ou the levers d, which operation turns the spools a', winds the cables a2on the same, and draws the body up until it is sufficiently high. 'lhen a few additional strokes with the right-hand lever raises the frontend of the body and its contents are emptiediuto the chute G, thence into the chute I, thence into the chute J, and thence into the receptacle. l do not always use the chute J; but when it is not convenient to put the elevator sufficiently near the receiver I use said chute and may still use an additional one, il necessary.

The elevator may be made higher or lower, as circumstances may require, or the uprights may be spliced a short distance above the cross-beam F and secured by clamps, so that the same elevator may be adapted to receptacles with high or low openings.

A ladder maybe constructed by nailing cross-pieces to one of the uprights, or a scparate ladder may be used to ascend the elevator.

When the load has been emptied, the operator puts his feet on the free ends of the levers d5, which throw up the dogs d', and presses downward, which throw down the outer ends of the levers (l until the feet (ZS impinge against the free ends of levers f2 and presses them down, which operation, by means of the cords f3, raises the dogs e3. Thus by one opera-tion the dogs d' and ci are raised out of the notches of the ratchet-wheels C, so that the same may run backward, and thus allow the cables o, to unwind, and the wagonbody descends of its own weight.

llaving described my invention, what I erased claim as new, and desire to secure by -Letters Patent, is-ml. The combination of the frame A, spools a, rigidly secured on the axle a., ratchetwheels c, rigidly secured on said axle, levers d, pivoted on said axle and carrying the dogs d', levers d5, pivoted to the free ends of said levers d and provided with feet d8, levers cl2, pivoted to the rear ends of levers d, bar d", one end pivoted to the lower end of said lever (Z2 and its other end to the dog al', rods d4, uniting the upper ends of said levers d2 and d5, cables a2, one end attached to the spools a5 and their other ends passing over pulleys d3 and a4 in the upper end ot said frame, and a body-lifter B, substantially as shown and described, and for the purposes set forth.

2. The combination of the frame A, spools a', rigidly secured on the axle d, ratchetwheels c, rigidly secured on said axle, levers d, pivoted onv said axle and carrying the dogs d', levers d, pivoted to the free ends ot' said levers d and provided with feet d8, levers cl2, pivoted to the rear ends ot' levers d, bar d, one end pivoted to the lower end of said lever (l2 and its other end to the dog d', rods di, uniting the upper ends of said levers cl2 and d, axle c2, passing through central upright E and secured in position by braces e', dogs c, pivoted on said rod and working in the teeth of the ratchet-wheels c, levers f2, pivoted one on each side of the center upright E, cords f3, their lower ends attached to said levers and their upper ends passing over the pulleys f and f and secured to the dogs e3, cables a2, one end attached to the spools a and their other ends passing over pulleys a3 and a in the upper end of said frame, and the body-lifter B, substantially as shown and described, and for the purposes set forth.

In an elevator, substantially as shown and described, the body-lifter B, consisting of the upper cross-beam b, lower cross-beams b', elbow-braces i12, pivoted at their elbows, one at each end of said beams, and chains b4, attached to the outer ends of said braces and of the beam b, substantially as shown and described.

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

PLEASANT DONOVAN l IARPER.

"Witnesses:

WILEY C. CARGILL, GEORGE W. llamaron.

IOO

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