US 595056 A
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Description (OCR text may contain errors)
W. L. FRENCH.
No. 595,056: Patented Dec. 7,1897.
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UNirEn STATES PATENT OFFICE.
\VALTER L. FRENCH, OF BROCKTON, MASSACHUSETTS.
SPECIFICATION forming part of Letters Patent No. 595,056, dated December 7, 1897.
Application filed August 19, 1897. Serial No. 648,779. (No model.)
To all whom, it may concern:
Be it known that I, WALTER L. FRENCH, of Brockton, Plymouth county, Massachusetts, have invented certain Improvements in Dum pin g-Wagons, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, making part of this specification, in which-- Figure l is a side elevation of a clumpingwagon constructed in accordance with my invention with its body resting in its loaded or horizontal position upon its truck; Fig. 2, a vertical section representing the body in its inclined dumping position; Fig. 3, a plan of the wagon-truck detached; Fig. 4, a transverse section on the line as at of Fig. 3, the body being supposed to be resting thereon; Fig. 5, a transverse section on the line y y of Fig. 3 with the body thereon; Fig. 6, a sec tional detail representing one of the guiderods and the guide-roll under which it travels and which is not revealed to View in Fig. 2; Fig. 7, the device for locking the body when seated upon its truck.
The aim of my invention is to so construct a wagon (or four-wheeled vehicle) that its body may be readily transposed from its ordinary horizontal or loaded position to one inclined to the truck in order that the load may be instantly discharged by gravity instead of removing it by successive operations; and this invention consists in a wagon-body made separate from and adapted to slide upon its truck and to be tipped at an angle thereto and to be returned to its original horizontal position by means of the construction hereinafter to be described and claimed.
In the said drawings, A represents a wagontruck, and B B B B its four wheels. This truck consists of a series of parallel longitudinal stringers a a a a, Fig. 3, equidistant from each other and secured at their ends by transverse cross-bars Z) I), supported in the usual way on the axles c 0. Located in apertures out through the stringers and turning freely on axial rods or pins are a series of friction-rolls (Z (Z, &c., the upper portion of each projecting above the horizontal plane of the stringers, the rolls cl (1, &c., at the rear end of each also projecting beyond its stringer, Figs. 2 and 3, which is cut away to admit of the same. These end rolls d d, &c., revolve on a common axial rod 6, which extends transversely from side to side of the truck. Beside these end rolls cl cl are two grooved guiderolls h h, also turning freely on the rod 6 and each located between an outer and the contiguous stringer, and near the forward end of the truck are two transverse rods 1; 2', to be further referred to.
C is a wagon-body of a length exceeding that of the truck, so that when seated on the friction-rolls of the latter it will project beyond the rear of the truck. (See Fig. 1.) At the rear of the body and extending down from the inside of each of its outer longitudinal sills 71) is a bent rod Z, of the form seen in Figs. 2, 5, and 6, its longer portion 12 being parallel to the length of the sill and its two ends 13 and 14 bent at right angles thereto. This rod serves as a guide, and when the body is seated on the truck or tilted down at its rear and during its movements from one position to another the path of this guide-rod lies in the vertical plane passing through the groove in the guide-roll h, thus insuring the proper registration and position of the wagon-body at all times, Figs. 1 and 6.
WVhen the Wagon-body is tilted down to the rear into the position for its load to slide out therefrom by gravity, the bottom on, Fig. 2, rests'upon the ground, being limited in its angular descent by the bent portion 13 of the guide-rod.'
n n are wedge-shaped hooks secured, respectively, to the insides of the outer sills near their forward ends. WVhen the body is in a horizontal position and is slid forward on its seat, these hooks catch under the transverse rods 1' 1. and draw the body snugly down thereon, and to retain it in this its loading position I employ a vertically-sliding bolt 17, mounted in a casing secured to the outside of one of the stanchions of the body 0, the lower end of the bolt entering a staple secured to the outside of the truck A beneath. WVhen the body is to be slid backward on its seat, the bolt is raised by its knob until its lower end is liberated from the staple, when the bolt is given a partial revolution and the knob enters a recess at the side of the casing and supports the bolt in its unlocked position,
the body being then free to be pushed to the rear.
The number of the sills 7c of the body corresponds to those of the stringers a of the truck, and in order to reduce the friction and Wear of its movement on the rolls the under side of each sill is sheathed With metal, Figs. 1, 4, and 5. The advantage of a dumpingwagon over an ordinary two-Wheeled tip-cart is the greater capacity of the Wagon for carrying loads.
From the foregoing it Will be seen that for general usefor instance, in farmwork or carrying earth, stones, &c., employed in the formation of roads, &c.-a dumping-Wagon constructed in accordance with my invention is an invaluable aid in facilitating the progress of the Work.
WALTER L. FRENCH.
In presence of N. W. STEARNs, LORING W. PUFFER.