US841406A - Dump-wagon. - Google Patents

Description

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N. 4146. 8 0. E. KAUFMAN.

DUMP WAGON.

APPLICATION FILED JUNE 30. 19 05.

PATENTED JAN. 15, 190i 2 SHEETSSHEET 2.

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CARL E. KAUFMAN, OF ROSEDALE, KANSAS.

DUMP-WAGON.

Specification of Letters Patent.

Patented Jan. 15, 1907.

Application filed June 30,1905. Serial No. 267,782.

To all whom it 771/6111] concern:

Be it known that I, CARL E. KAUFMAN, a citizen of the United States, residing at Rosedale, in the county of VVyandotte and State of Kansas, have invented new and useful Improvements in Dump WVagons, of which the following is a specification.

My invention relates to improvements in dump-wagons.

The object of my invention is to provide a dump wagon having a construction by which one person may easily tilt the loaded bed for the purpose of dumping the load therefrom and then as readily retract the bed to its original horizontal position.

My invention provides a construction in which the bed when tilted for the purpose of dumping the load will have its center of gravity disposed forward of the rear axle of the wagon, thus preventing when dumping the load lifting of the forward wheels.

My invention provides, further, means by which a crank-shaft rotated in opposite directions on the bed-support carried by the running-gear will alternately and positively move the bed rearwardly and tilt it and then retract the bed to its original position.

My invention provides, further, a bedsup port carried by the runninggear, a bed movable rearwardly on said support to a certain position and then pivotally engaging the support so as to be swung to'a tilted position thereon, a drum rotatively mounted on the support, and flexible means connected with the drum and with the bed in a manner such that when the drum is rotated in one direc tion the bed will be drawn rearwardly and tilted and when the drum is rotated in the opposite direction the bed will be retracted to its original position.

Other novel features are hereinafter fully described and claimed.

In the accompanying drawings, Figure 1 is a longitudinal vertical sectional view showing the bed in the tilted position. Fig. 2 is a side elevation view of the bed and bed-support, the bed being shown in the horizontal position. Fig. 3 is a top view of the bedsupport, the chain bracket attached to the bed, and the two bearing-plates adapted to engage the fulcrums on the support. Fig. 4 is a top view of one of the bearing-plates and one of the fulcrums and parts connected therewith. Fig. 5 is a vertical section taken on the dotted line a b of Fig. 4.

Similar characters of reference denote similar parts.

1 denotes the bed of the ordinary rectangular form.

2 and 3 denote, respectively, the forward and rear axles of the running-gear.

4 denotes a horizontal frame supported at its forward and rear ends upon the axles 2 and 3 and having at its rear end two rollers 5, adapted to support the rear end of the bed 1 when the bed is in the horizontal position. Supported upon the bed-support 4 in front of the rollers 5 are two forwardly and downwardly inclined runways 6, adapted to support two rollers 7, rotatively mounted upon the lower side of the bed upon opposite sides thereof. Upon the rear end of the support 4, located one at each side thereof over the rear axle and adjacent the rollers 5, respectively, are two projections 8, having upper curved peripheries which form fulcrums upon which the bed 1 may be tilted. Two bearing-plates 9 are secured upon opposite sides of the bed near the bottom thereof and are provided, respectively, with curved recesses for pivotally engaging with the fulcrums 8 when the bed 1 has been moved rearwardly to a position in which the bearing-plates 9 will strike the fulcrums 8.

Secured upon each side of the support 4 are two forwardly and downwardly inclined runways 10, supporting, respectively, thereon two rollers 11, mounted upon the forward end of a brace, the rear end of which is pivotally secured to the bed 1. Said brace comprises a transverse rod 12, on which are rotatively mounted the rollers 11 and to which are secured the forward ends, respectively, of two arms 13, the rear ends of which are pivotally connected in any suitable manner to opposite sides of the bed in front of the bearing-plates 9, respectively. When the said brace is moved rearwardly, the bed will be moved therewith to a position in which the bearing-plates 9 will strike the fulcrum 8, after which continued movement rearwardly of the brace will force the bed to swing upon the fulcrums 8 into-the tilted position shown in Fig. 1.

T o retract the brace, the followingdescribed mechanism is provided: Forward of the fulcrums 8 a transverse drum 14 is rotatively mounted at its ends in the frame 4. One or more chains 15 are connected to the drum 14 and to the brace, so that when the drum 14 is rotated in the proper direction the chain or chains 15 are wound thereon. The chains 15 are preferably secured at their forward ends, one to each arm 13. On the under side of the bottom of the wagonbed is secured a bracket 16, to which is secured the rear end of a chain 17, the forward end of which is secured to the drum 14 in a manner such that when the drum is rotated in a direction such that the chains 15 will be unwound the chain 17 will be wound on the drum. Acrank-shaft 18is rotatively mounted parallel with the drum 14 in the bed-support 4. Rotation is imparted I from the crank-shaft 18 to the drum 14 by means of a pinion 19, rotatable with the crankshaft 18 and meshing with a spur gear-wheel 20, mounted on and rotatable with the drum 14. Rotation is imparted to the crank-shaft 18 by means of a crank-arm 21, secured to one end thereof. Releasable means for locking the crank-shaft 18 against rotation in either directioncomprises the following parts: Secured upon the crank-shaft 18 are two ratchet- wheels 22 and 23, respectively, the peripheral teeth of which face in opposite directions. Pivotally mounted upon the bedsupport 4, preferably upon a horizontal pin 24,

' providedon the outer side of the bed-support, are two pawls 25 and 26, which engage,

22 and 23. When the pawls 25 and 26 are both engaged with the ratchet- wheels 22 and 23, as shown in Figs. 2 and 3, the crank-shaft 18 is prevented thereby from rotation in either direction, thus holding the bed 1 against movement from any position in which it may be at such time. To limit the rearward tilting of. the bed 1, a hook 27 is mounted upon therod 12 in a position such that it will engage the crank-shaft 18 when the rod 12 has been moved rearwardly to a certain position.

When it is desired to dump the load, the pawl 26 is swung so as to clear the ratchetwheel 23, after which the 'crankarm 21 is turned clockwise, thus rotating the drum 14 through the intermediacy of the shaft 18, pinion 19, and gear 20in a direction such that the chains 15' will be wound upon the drum 14 and at the same time unwinding from the drum the chain 17. By the rearward drawing of the chains 15 as they are wound upon the drum 14 the brace, comprising the arms 13, rollers 11, and rod 12, will, with the bed 1, be forced rearwardly until the bearing-plates 9, strike the fulcrums 8, the bed in the meantime being supported upon the rollers 5, 7, and 11. WVhen the bearingplates 9 strike the fulcrums 8, continued rotation'of the drum 14 in the same direction will force the arms 13 still farther rearwardly and by reason of the bearing-plates 9 being against the fulcrums 8 will tilt the bed 1 in the position shown in Fig. 1, in which position the, center of gravity of the load and bed will be forward of the axle 3, thus preventing upward tilting of the forward wheels, due to the position of the load and bed. In the tilted position (shown in Fig. 1) the bed 1, sup port 4, and arms 13 will be positioned in the form of a triangle, the horizontal base of which will be the bed-support 4. By with drawing the end-gate 28 at the rear end of the bed the load may be dumped from the bed by gravity, after which the pawl 25 may be removed from engagement with the ratchet wheel 22 and a crank-arm rotated in a direction opposite that required for forcing the bed rearward, as hereinbefore described. The rotation of the crank-arm will cause the drum 14 to be rotated, by means of the crankshaft 18 and gears 19 and 20, in a direction such that the chain 17 will be wound upon 1 the pawls 25 and 26 with the ratchet- wheels 22 and 23, respectively.

My invention may be variously modified without departing from its spirit.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is

1. In a dump-wagon, the combination with i I o 5 a bed-support having at its rear end two fulcrums and in front of the fulorums two forwardly-inclined runways disposed one at,

each side of the support, of a bed movable horizontally rearward on the bed-support to a certain position and provided with means when in said certain position for engaging and swinging on said fulcrums to a rearwardly-tilted position, a brace pivoted at its rear end to the bed, two rollers mounted on the brace and running on the said runways respectively, a drum rotatively mounted on the bed-support, means for rotating the drum in two directions, releasable means for looking the drum against rotation in either direc tion, and two chains connected one to said brace and the other to the bed so as to move the bed in opposite directions when the chains are properly drawn by the drum, the chains being so connected to the drum that when one is wound thereon the other is unwound.

2. In a dump-wagon, the combination with the bed-support, of the bedmovable forward and backward thereon, means by which when the bed has been moved rearwardly to a cer- .chain being comiected to the bed for moving it forward, and the other chain being connected to the brace for forcing the brace and bed rearwardly, a crank-shaft mounted on the bed-support, two ratchet-wheels mounted on the crank-shaft and having their teeth facing in opposite directions, two pawls pivoted to the bed-support and engaging respectively said ratchet-wheels, and gearing for imparting rotation from the crank-shaft to the drum.

3. In a dump-wagon, the combination with the bed-support having runways inclining forward, of the bed movable forward and backward on the support, means by which when the bed has been moved rearwardly to a certain position it may be rearwardly tilted on the support, a brace having rollers mounted on its forward end, the rollers being supported on said runways, said brace being pivoted to the bed at the rear end of the brace, the bed, brace and bed-support forming a triangle with the bed-support as a base when the bed is in the tilted position, a drum rotatively mounted on the bed-support, two chains connected to the drum so that one will be wound thereon when the other unwinds therefrom, the chains being connected one to the brace and the other to the bed for alternately moving the bed forward and backward and means for rotating the drum in both directions.

4. In a dump-wagon, the combination with the bed-support, having two pairs of forwardly and downwardly inclined runways, and, two rollers located to the rear of said runways, of the bed supported at its rear end when in the horizontal position upon said rollers and having two rollers adapted to rest upon one pair of runways when the bed is in the horizontal position, means by which, when the bed is moved rearwardly to a certain position it will pivotally engage said support, a brace pivoted at its rear end to the wagon-bed and having at its forward end rollers mounted on the other pair of runways, means connected with the bed-support and said brace for forcing the brace rearwardly together with the bed until the bed has pivotally engaged the support, and then forcing the bed to swing into a tilted position, and means by which, when said brace-moving means is reversed in operation, the bed will be retracted to its original position.

5. In a dump-wagon, the combination with a bed-support, of a bed movable rearwardly thereon, means by which, when the bed has been moved rearwardly to a certain position, it will pivotally engage the support, two chains movable simultaneously lengthwise of the support in opposite directions, means mounted on the support for so moving said chains,one chain being connected with the wagon-bed for drawing the bed forward on the support, and a brace connected to the other chain and rearwardly drawn thereby, the rear end of said brace being pivotally connected to the wagon-bed and the forward end of the brace movable forward and backward on said support, the arrangement of the parts being such that when the chain connected to the brace is drawn rearwardly the bed will be moved rearwardly into pivotal engagement with the support and then swung thereon into a tilted position, and when the chain-drawing means is oppositely operated, the bed will be retracted by the chain connected with it to its original horizontalposition on the support, after it has been swung downward from its tilted position.

6. In a dump-wagon, the combination with the two aXles, of the bed-su port mounted thereon, means by which wlien the bed is rearwardly moved to a certain position on the bed-support it will pivotally engage and may be swung thereon to a tilted position, a brace pivoted at its rear end to the bed at a point in front of the place of pivotal engagement of the bed with the bed-support, the forward end of the brace being movable lengthwise upon and supported by the bed,

support, a drum rotatively mounted on the bed-support, means for rotating the drum in two directions, means by which when the drum is rotated in 'one direction the brace will be forced rearwardly until the bed pivotally engages the bed-support and then forced to a position in which the bed will be tilted, the arrangement of the parts being such that when the bed is in the tilted position it will be supported wholly by the bed-support, and means by which when the drum is reversely rotated, the bed may be retracted to its original position.

7. In a dump-wagon, the combination with the two axles, of the bed-su port mounted thereon, means by which w en the bed is rearwardly moved it will pivotally engage the bed-support and may then be swung thereon to a tilted position, a brace pivoted at its rear end to the bed in front of where the bed pivotally enga es the bed-support, the forward end of the race being movable lengthwise upon and supported by the bedsupport, a drum rotatively mounted on the bed-support, two chains adapted to be wound on the drum, one being wound while the other is unwinding, one chain being connected to the bed and the other to the brace in a manner such that when the drum is'turned in In testimony whereof I affix my signature in presence of two subscribing witnesses.

CARL E. KAUFMAN.

one direction the bed will be forced rear wardly and tilted on the support and when the drum is oppositely turned, the bed will be retracted, the arrangement of the parts being 1 such that when the bed is in the tilted posil tion it will be supported wholly by the bedsupport.

Witnesses:

WARREN D. HoUsE, HENRY F. RosE.

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