US870899A - Wagon-elevator. - Google Patents

Description

No. 870,899. I PATENTED NOV. 12, 1907. E. H. OVERHOLT.

WAGON ELEVATOR. APPLICATION NLRB 001e, 1906.

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PATENTED NOV. 12, 1907.

E. H. OVERHOLT. WAGON ELEVATOR.

ABPLIOATION FILED 001. e. 1906.

2 SHEETS-SHEET 2.

- M/JTNEEEE EDWARD H. OVERHOLT, OF GALESBURG, ILLINOIS.

WAGON-ELEVATOR.

Specification of Letters Patent.

Patented Nov. 12, 1907.

Application filed October 6, 1906- Sorial No.. 337.'778.

To all 'whom it may concern:

Be it'known that I, EDWARD H. OVERHOLT, a citizen of the United States, residing at Galesburg, in the county of Knox and State of Illinois, have invented a certain new and useful Wagon-Elevator, of which the following is a specification.

My invention relates to wagon elevators, and particularly to that class or type thereof which are employed for raising the forward end of the wagon, whereby the, contents thereof will, upon the end-gate or tailboard being raised or removed, by gravity automatically fall or slide from the wagon-box or body into a hopper or like receiver, from which said contents are transported'by an elevator to a place of storage. Heretofore objections have been found in the employment of such devices, such objections being that they were of such size and such construction as to be difficult of transportation from place to place, inconvenient to handle, that they were expensive because of too much mechanism and material, that they required too much space, thaton account of their height they could not be used in-corn-cribs or storage-barns provided with low rafters or ceilings, that the cost of production has been such that they were not readily salable, that they could. not be used in narrow driveways, that they couldinot be conveniently shipped or freighted without being knocked'down or taken apart, that it has heretofore been generally necessary to provide an elevated platform uponwhich the front wheels of the wagon might be driven, and that in elevators or hoists ofthe classor type herein referred to and hcreinafter considered,-such being those which hoist the forward. end of the wagon by means of a chain or like expedient adapted to engage the hubs of the front wheels thereof-it has been necessary to provide an overhead mechanism.

To the end of overcoming these objections the principal objects of my invention are to produce a device which is of such size and construction that it is of light weight andwhile durable and strong, is economic of manufacture, readily handled, capable of being taken into narrow and low roofed driveways, which may be folded for the purposes of shipment or for local transportation, into a small compass, one in which i n elevated platform or driveway is not required for the wagon wheels, and in which the posts of the jack or derrick are ofless height than the top of the wagon boxor body 'when elevated.

Subsidiary objects of the invention will presently appear.

To theend of carrying out these principal objects of my invention, it consists in certain novel features ofconstiuction and combinations of parts, as will be hereinafter fully described and pointed out in the claims hereto appended. The preferred construction of parts and arrangement thereof is illustrated in the accompanying drawings, in which:

Figure 1 is a front elevation; Fig. 2, a-perspective; Fig. 3, an elevation of the operating mechanism, seen from the central line, 17, of the device, and Fig. 4, a detail of the clutch.

Referring now to the drawing by numerals, the same one indicating the same part in the different figures, 1 represents a low base or platform comprising substantially parallel longitudinal members 2 spaced a distance apart for a purpose hereinafter described. which members are held rigid by cross bars 3 at their ends. Fixed to the platform members 2 longitudinally thereof are cleats 4 to which are pivoted converging. normally upright bars 5 united at their upper ends by cross pieces 6 to which are bolted or otherwise securcdkeepers 7 for a purpose hereinafter described At each end of the platform a standard 8 is hinged at 9 to one of the sills or crossbars 3 and its upper end projects loosely through th' keeper 7. A pin 10, preferably provided with means for re'adily grasping it, is, when the wagon is being, and is elevated, and thus held, projected through an orifice registering through the keeper and standard and extending into the cross-piece 6 for a purpose which will presently be described.

Mounted on and supported by the cross pieces 6 are journal brackets 11 in pairs, in the bearings of which are seated journals 12 carrying pulleys 13 which are traversed by a hoist-chain 14 provided at each end with hub-loops 15.

16 represents a pulley fixed to a leg of one of the bars 5.

Astride the longitudinal opening 17, which is for the passage of the hoisting-chain 14, and near each end thereof are brackets 18, in the bearings of each of which is mounted a sheave 19 below which said chain passes.

To a sill and one end of a member 2 of the base 1 is fixed in any preferred manner a duplex bracket comprising a horizontal base 20 and vertical walls 21. In suitable bearings in this bracket is seated the driveshaft 22, either end of which is adapted for engagement with a source of motive power, for instance, the tumbling-rod of a horse-power. v

The train of gear shown at Fig. 3 serves a double purpose, the first being to increase or accelerate the lifting power of the device, and the second being to raise the forward end of the wagon at such degree of regulated speed that the contents thereof will be discharged at a rate equal to the capacity of the elevator. Fixed to or integral with the shaft 22 is a master pinion 23 which meshes with a spur 24 loosely mounted on a shaft 25.

Integral with the spur 24 is a pinion 26 which meshes I with a spur 27 loosely mounted on a shaft 28. Integral with thespur 27 is a pinion 29 which meshes in a spur 30 fixed to a winding drum 31 to which one end of the hoisting chain is fixed. The drum 31 is mounted on a shaft 31 one end of which is seated in the bracket 21 and the other end attached to a portion of the platform or in any preferred and suitable place.

The master pinion is geared with relation to the spur 24 as about 1 to 3, the latter spur driving its integral pinion 26, which is in relation thereto as 3 to 1; and said pinion 26 driving the spur 27 in aratio of 1 to 3, said spur 27 driving the pinion 29 in a ratio of 3 to 1, said pinion 29 driving the spur 1 revolution to 27 of the pinion 23. The drum 31 is about one-third the circumference of the'spur 30, thus giving a lifting power of about 81 times that normally transmitted from the master pinion.

Integral with the master pinion is a clutch member 32 provided on its periphery with ratchets 33. Loosely mounted on the shaft 25 is a pawl 34. Mounted by means of a feather 35 on the main shaft 22 is another clutch member, 36. Fulcmmed on a bracket 37 is a lever 38, the lower end of which constitutes a brake-shoe 39 to contact the clutch member 32 and near its upper end is provided with a rod 40, the distal end of which connects with a pawl 34, the other end of which is carried by the shaft 25. Fulcrumed at 42 is a lever 43 provided with a sleeve 44 which engages the clutch member 36 to throw it in or out of gear with its fellow.

The operation is as follows: A team of horses being driven across the narrow platform 2, will be stopped with the front wheels of the wagon resting on the points 2, the clutch members being in operative connection. The draft animals being then detached from the wagon, the loops 15 will thereupon be placed about the hubs of the front wheels thereof, whereupon the op erator will start the power, whether horse or otherwise, it being applicable for attachment to the shaft 22, which as hereinbefore stated may be attached from either side of the device. The power being further applied, the forward wheels of the wagon and thereby the front end of the body will by means of the hoist chains in an evident manner be raised to any desired height to dump its contained load into the hopper, it now being understood that the power may be applied at any desired speed. The required height or elevation being arrived at, the source of power stopped andthe load having been dumped into the hopper, it becomes desirable to return the wagon to a normal position. The operator will then, by releasing the lever 38 also release the brake-shoe 39 which contacts the member 32 and by the same operation throw the pawl out of engagement with the wheel 33. The weight of the wagon on the hoist chain 14 will cause the latter to be wound about the Windlass or drum 31 to cause the gear hereinbefore described to revolve in a direction contrary to that last described.

To a certain extent the mechanical advantages of the present invention have been set forth in connection with the statement of the purposes and objects thereof and the detail description of the mechanism; but concisely stated, the leading benefits secured thereby are as follows:

First: Because of the fact that the legs of the derrick may be folded outwardly, the hubs of the wagon may pass through the space heretofore occupied by them. A much narrower driveway may therefore be utilized.

Second: Because of its being foldable, it may be shipped or freighted without being knocked down or taken apart.

Third: An elevated platform on which the front wheels of the wagon are supported is dispensed with.

Fourth: In the type of device herein shownthat in which a chain hoist for-the hubs is employedan overhead mechanism has heretofore been indispensable, but is not required in the one herein shown and desciibed. 1

Fifth. It is lighter and more portable than any other.

Sixth: It is more economic of manufacture than any other.

Seventh: It is simpler in construction, and therefore easier of manipulation than any other.

Eighth: It may be employed in cribs or barns having very low rafters or ceilings.

Having thus described my invention and set forth its merits, what I claim as new therein and desire to secure by Letters Patent, is

1. A wagon elevator including a base, bars pivoted there to at each end thereof and adapted to fold longitudinally thereof in either direction, and a single means traversing said bars and base for supporting one end of a wagon.

2. A wagon elevator including a base, independently foldable bars pivoted thereto at each end thereof, and a single means traversing said bars for supporting one end of a wagon.

3. A wagon elevator including a platform, bars pivoted thereto at each end thereof and adapted to fold longitudinally thereof in either direction, and means traversing said bars and platform for supporting one end of a wagon.

4. A wagon elevator including an elongated base upon which a wagon is adapted to be drawn transversely thereof, bars pivoted at each end of the base and adapted to fold in directions toward or from the sides of the wagon, and means traversing said bars for supporting one end of a wagon.

5. A wagon elevator including an elongated base upon which a wagon is adapted to be drawn transversely thereof, bars pivoted at each end of the base and adapted to fold in directions toward or from the sides of the wagon, and means traversing said bars for supporting one end of a wagon, its other end being adapted to rest on the ground.

6. In wagon elevators including -a platform, derrick members pivoted thereto at each end thereof and adapted to fold longitudinallyv thereof in either direction.

7. In a wagon elevator, at base, converging bars pivoted thereto at each end thereof and adapted to fold thereon and therefrom, means for holding said bars in upright positions, and a single means traversing said bars for elevating one end of a wagon.

8. In awagon elevator, a base, converging bars pivoted thereto at each end thereof and adapted to fold thereon and therefrom, standards hinged to said base and keepers for engaging them with said bars to normally support them in upright positions.

9. In a wagon elevator, a base, converging bars pivoted thereto at each end thereof and adapted to fold thereon and therefrom, standards hinged at the ends of said base, keepers for removably engaging their upper ends with said bars, pulleys positioned at the upper ends of the bars, a drum, and a chain fixed thereto, its extremities traversing said pulleys.

10. In a wagon elevator, a base, converging bars pivoted thereto at each end thereof and adapted to fold thereon and therefrom, standards hinged at the ends of said base, keepers for removably engaging their upper ends with said bars, pulleys positioned at the upper ends of the bars, a drum, 2. chain fixed thereto, its extremities traversing said pulleys, and means for driving said drum from either side of the platform.

11. In a wagon elevator, a base, converging bars pivoted thereto and adapted to fold thereon and therefrom, means for normally supporting them in upright positions, pulleys positioned at the upper ends of the bars, a drum, a chain fixed thereto, its extremities traversing said pulleys, and a multiplying gear driving said drum.

12. In a wagon elevator, a base, converging bars pivoted thereto and adapted to fold thereon and therefrom, means for normally supporting them in upright positions, pulleys positioned at the upper ends of the bars, a drum, a chain fixed thereto, its extremities traversing said pulleys, and a multiplying gear driving said drum, said gear including clutch members.

13. In a wagon elevator, a base, converging bars pivoted thereto and adapted to fold thereon and therefrom, means for normally supporting them in upright positions, pulleys positioned at the upper ends of the bars, a drum, a chain fixed thereto, its extremities traversing said pulleys, and a multiplying gear driving said drum and including clutch members and a brake.

14. In an elevator, the combination with a base, of folding bars pivoted thereto at each end thereof, pulleys positioned on said bars, a winding drum mounted on said bars, and a hoisting chain fixed to said drum and adapted to traverse said pulleys.

15. A gear for wagon elevators including clutch members, means for. throwing them into and out of engagement, a ratchet wheel, a pawl adapted to engage the teeth thereof, a brake shoe adapted to contact said teeth, and a lever uniting said shoe and pawl.

16. In combination in a device of the character described, a base, a derrick comprising a plurality of sections adapted to fold thereon and therefrom, other means hinged to the base for normally supporting said derrick sections in upright positions and a keeper fixed to said means whereby said hinge means may be detached from said sections.

17. In a device of the character described and in combination, a base, a derrick supported thereby, said derrick comprising sections located at the ends of the base, means hinged at said base for normally supporting said derrick in a substantially vertical position, and means fixed to said derrick whereby the supporting means may be slidably secured thereto.

18. In a device of the character described and in combination, a base including parallel longitudinal members spaced apart, pulleys uniting said members, a derrick comprising converging bars, the members of said derrick pivoted to said base to told one upon the other, pulleys surmounting said derrick, means for retaining said derrick members in normally upright positions, a drum, -a chain fixed thereto its ends adapted to traverse said last named pulleys and its median portions to traverse the pulleys on the base, and means for imparting motion to said drum.

19. In a device of the character described and in combination, a base including parallel longitudinal members spaced apart, pulleys uniting said members, a derrick comprising converging bars, the members of said derrick pivoted to said base to told one upon the other, pulleys positioned on said derrick, means for retaining said derrick members in normally upright positions, a drum, a chain fixed thereto, its ends adapted to traverse said last named pulleys and its median parts to traverse the pulleys on the base, means for imparting movement to said drum, means for stopping said motion, and means for throwing said starting and stopping means in and out of gear.

In witness \vherof I have hereunto set my hand.

EDWARD H. OVERHOLT.

Witnesses:

L. M. RICHARDS, .T, H. Minnnn.

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