US1363185A - Device for distributing sand - Google Patents

Description

J. MACGREGOR.

DEVICE FOR DISTRIBUTING SAND.

APPLICATION FILED OCT. 24. 1918. RENEWED NOV. 9. 1920.

Patented Dec. 21, 1920.

ATTORNEY UNITE STATES ATENT OFFICE.

DEVICE FOR DISTRIBUTING SAND.

Specification of Letters Patent.

Patented Dec. 21, 1920.

Application filed October 24, 1918, Serial No. 259,542. Renewed November 9, 1920. Serial No. 422,970.

To all whom it may concern:

Be it known, that I, JAMES MAoGRncoR, a citizen of the United States of America, residing at the town of Braintree, in the county of Norfolk and State of Massachusetts, have invented certain new and useful Improvements in Devices for Distributlng Sand, of which the following is a spec1fica non.

My invention relates to a device for uniformly spreading or distributing a layer of stone, screenings, sand, cement, lime, phosphate or any similar material where such is required and the object of my in vention is to provide a rapid and efliclent means for distributing a uniform layer of sand over the surface of a freshly oiled or tarred highway; together with such other elements and combinations as are hereinafter more particularly set forth.

I accomplish these objects by means of the mechanism illustrated in the accompanying drawings, in which:

Figure 1 is a plan view of my device.

Fig. 2 is a side view or elevation with the near side of the body removed to show the interior.

Fig. 3 is a rear view with the seat and crank shaft not shown.

Fig. 4: is a bottom view.

Fig. 5 is a detail view showing the method of moving the screen.

Fig. 6 is a detail view of the gears used to regulate the rate of distributlon of the material.

Similar numbers refer to similar parts throughout the several views.

The ordinary method of applying the blotting coat on a highway, with shovels, is slow and it is im ossible to secure a uniform distribution. y device will be particularly useful in cities where it is cus tomary to apply a thin layer of sharp sand on smooth pavements which, because of me or sleet thereon, make traflic precarious, and the farmer or gardener may use it 1 n spreading plaster or phosphate over his land.

1, represents the floor of a truck or wagon upon which my device may be constructed. 2, is the bottom of the hopper into wh ch the material is placed, one end of which may be elevated by the screws 3,.to g ve the proper slope. The bottom, 2, is hmged at the lower end by hinge, 22. 4 and 5, are

the. sides of the body of the wagon which may form the sides of the hopper.

At the lower end of the adjustable bottom, 2, the floor, 1, is cut away forming a rectangular opening extending across the bottom of the hopper. Beneath the opening 1s the screen or sifter, 6,-which slides horizontally in the guides, 7 7 Attached to the 7 forward end of the screen, 6, is the connectlng rod 8, operated by the crank shaft, 9, whlch 1s in turn revolved by the chains, 10, 10, driving the sprocket wheels, 11, 11, by means of the sprocket wheels, 12, 12, which derive their power from the rear wheels, 13, 13, of the truck or wagon to which they are attached.

It will appear from this arrangement that the rear wheels of the truck or wagon, revolving as the vehicle is drawn or propelled, Wlll transmit a reciprocating motion to the screen, 6, between the guides, 7, 7, and the material falling from the hopper on to the screen will be sifted through and fall upon the ground.

In order to regulate the rate at which the material fiowsfrom the hopper to the screen, 6, I provide the following means for controlling the width of the opening in the bottom of the hopper. 14, is a hand wheel for the operator, who sits in the seat, 15. Attached to the shaft of the hand wheel is a car, 16, which meshes with the ears, 17, 1 on either side. The gears, 17, 1 are attached to and operate screws, 18, 18, which thread into a fixture, 19, attached to slide, 20.

It is apparent that by turning the hand wheel, 14, the slide, 20, will be raised or lowered by the screws 18, 18, and thus regulate the opening in the bottom of the hopper.

In order to protect the controlling gears and screws, I provide a hood or cover, 21, which is placed over them.

It is to be observed that any size mesh can be placed in the screen, 6, so that the device may be readily adapted to distribute coarse or fine material.

What I claimas my invention and desire to secure by Letters-Patent is:

1. In a device of the character described, a running gear; a body having a hoppershaped bottom mounted upon said running gear; a discharge opening in said hopper bottom; means for varying the size of said discharge opening; means for varying the incline of a major portion of said hopper bottom; a perforated screen slidably mounted beneath said opening; a crank shaft rotatively mounted on the under-side of said body; a connecting rod joining said screen to said crank shaft, whereby the rotation of said crank shaft Will impart a reciproeating motion to said screen; and means for operating said crank shaft from the Wheels of the running gear.

2. In a device of the character described, a body having a hopper bottom mounted on said running'gear; a discharge opening in said hopper bottom, one portion of said hopper being hinged near said opening and provided with means for changmg the angle of incline of said hinged portion; a slide adapted to vary the size of said opening; means for operating both ends of said slide simultaneously from a single hand Wheel; a perforated screen slidably mounted beneath said opening; bearings attached to the underside of said body; a crank shaft rotatively mounted in said bearings; a connecting rod joining said screen and said -c r ank shaft, whereby the rotation of said crank shaft Will impart a reciprocating mo tion to said screen; sprocket Wheels mounted on the ends of said crank shaft; sprocket Wheels mounted on an axle of the running gear and adapted to be driven by the Wheels of said running gear; and sprocket chains connecting the sprocket Wheels on the crank shaft With the sprocket Wheels on the axle, substantially as described.

In testimony whereof I have aflixed my signature.

JAMES MACGREGOR.

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