US1297361A - Sand-spreader. - Google Patents

Description

T. KERNER.

SAND SPREADER. APPLICATION FILED DEC. 21. 1918.

1 ,297,361 Patented Mar. 18, 1919.

sin a:

Assn

THEODORE KERNER, OF MILWAUKEE, WISCONSIN.

SAND-SPREADER.

Application filed December 21, 1918. Serial N 0. 267,760.

To all whom it may concern:

Be it known that I, THEODORE KnRNnR, a citizen of the United States, residing at Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented certain new and useful Improvements in Sand Spreaders, of which the following is a specification, reference being had to the accompanying drawing, forming a part thereof.

This invention relates to a tool or implement for applying sand or the like to walls or surfaces coated with paint or adhesive material. 7

The object of the invention is to facilitate evenly spreading sand ina thin layer on'a surface coated with an adhesive material such as paint, for the purpose of renewing or restoring stained or soiled walls or resurfacing the walls of old buildings in imitation of brick, tile or the like.

It consists in the construction, arrangement and combination of parts as hereinafter particularly described and pointed out in the claims.

In the accompanying drawing like characters designate the same parts in both figures.

Figure 1 is a front elevation of a sand spreading tool or implement embodying the invention, a part of the door of the filling opening being broken away; and Fig. 2 is a vertical section of the tool on the line 2 2, Fig. 1.

- The tool or implement comprises a sand receptacle open on the front side and having closed ends a, and a closed back I), which may be conveniently made as shown, of sheet metal.

To the inner sides of the ends a of the receptacle are pivotally fastened end plates 0,

by bolts cl and e. The end plates 0 correspond in shape with, but are somewhat narrower than the ends a of the receptacle, as shown in Fig. 2. The bolts cl pivotally connect'the plates 0 adjacent to their upper ends with the ends a of the receptacle, while the bolts 6 pass through transverse slots 7" in the ends a, as indicated by dotted lines in Fig. 2, so that the lower ends of said plates may be adjusted toward and from the back b.

An angular plate h, fastened at the ends to the plates 0, extends across the front and lower part of the sand receptacle, forming with the lower part of the back-b, an adjustable discharge slot 1', the back being inclined downwardly and forwardly toward the slot, as shown in Fig. 2.

Baffle plates is, fastened at the ends to the end plates 0, extend downwardly and backwardly from the front edges of the plates 0 toward the back 22, terminating at their lower back edges a distance from the back plate, as shown in Fig. 2. The baflie plates are preferably curved downwardly adjacent to their rear edges, as shown in Fig. 2, and are bowed upwardly at the middle, or inclined longitudinally downward toward their ends, as shown in Fig. 1, to distribute the sand with which the receptacle is filled .or supplied toward the ends.

A wire screen of the proper mesh to permit particles or grains of sand under a certain size to pass through it, is fastened at the ends to the plates 0 and extends downwardly and forwardly across the lower part of the receptacle to the inner or lower edge of a downwardly and backwardly inclined flange n on the plate h.

A downwardly and backwardly inclined hinge plate or bar 39 is fastened at the ends to the end plates 0 a short distance above and parallel with the flange a of the plate h, with which it forms an upwardly inclined opening Q for the removal of refuse separated from the sand in its passage through the screen on. The upward inclination of this opening 9 prevents sand from escaping through it when the receptacle is held in a normal upright working position, as shown in Fig. 2, but permits the removal of screenings therefrom when it is held front down ward.

The sand receptacle is preferably provided with a door 8, to close the filling opening into the upper'part of the front side of the receptacle, for confining sand therein when it is filled, although this is not indispensable to the successful operation of the tool if it is but partially filled. This door may be conveniently hinged at its lower edge to the plate or bar 20, and provided at its upper edge with a catch 25 for holding it closed by engagement with an opening or notch in the top of the receptacle, as shown in Fig. 2. The back 6 of the sand receptacle is formed with an extension or flange at below the discharge slot 2', and is provided with a flexible sand spreading flap 1) of some suitable material such as celluloid, having a hard smooth surface. An elastic backing strip w, of rubber or other suitable material, is adj ustably fastened with the spreading flap Q} to the flange u y, provided with nuts. The downward extenslon or flange a, projecting below the slot, is sufficiently flexible, due to the spring or resiliency of the sheet metal, to permit of its adjustment with the flap v and its backin strip w by the clamping plate 00, to a greater or less inclination to the front plane of the sand receptacle. The fiap o is adjusted and held normally, as shown in Fig. 2, at a downwardand slightly forward inclination toward its lower edge relative to the front plane of the sand receptacle, which is presented, in the operation of the tool, toward the'wall or surface to be coated.

.The tool isprovided at the back with a handle a, similar to the handle of a plasterers' trowel. V v

In the operation of. the tool, the receptacle being filled or supplied with sand and the door s'beingv closed and fastened by the catch t, the tool is'held by the operator with the flap 41 against the wall or surface to be coated, and carried upwardly with a sweeping movement which evenly spreads the sand in a thin layer or coating on the painted or prepared wall or surface, the receptacle being held and carried at an inclination to and out of contact with the wall or surface. The baffle plates 7c, which partially divide the sand receptacle into compartments, support the sand in the upper compartments, from which it gradually fiows into the lower compartments through the openings between the lower rear edges of the baffle plates and the back of the receptacle, thereby relieving the' sand in the lower compartment from which it is discharged through the slot i, of

the weight of the sand in the upper compartments, preventing the clogging of the discharge slot, and insuring an even flow of the sand through the slot until the supply in the receptacle is exhausted, whereupon it is replenished by opening the door 8 and holding the receptacle with its open front upward.

The openings between the rear lower edges of the baffle plates and the back 19 are preferably of diminishing area downward, asshown in Fig. 2, and by the adjustment of the end plates 0 with the baffle plates and cross plate h,the width of the discharge slot 2' and the lower'openings at the rear edges'of the baflle plates may be varied so as to regulate the flow of sand through the discharge slot. a

-Refuse such as shreds and coarse particles, that may be mixed with the sand, are separated therefrom. in its passage to the discharge slot 2' by the screen m, and may be removed from the receptacle through the upwardly inclined opening q by tipping the receptacle forward or holding it with its front downward, and if necessary, gently shaking it. p

Various changes in details of construction and arrangement of parts may be made without departure from the principle and scope of the invention as defined in the following claims.

I claim:

1. A sand spreader comprising a receptacle having closed ends and back, a discharge slot 'alongthe lower side of the front and a flexible fla below the slot.

2. A sand spreader comprising a receptacle provided with a handle and having a discharge slotalong the lower side or the fron and a flexible flap below the slot;

3. A sand spreader comprising a receptacle having closed ends and back, a discharge slot along the lower side of the front, and downwardly and backwardly inclined baffle plates.

4.. A sand spreader comprising a'receptacle having closed ends and back and having a discharge slot along the lower side of the front, a flexible flap below the slot, and downwardly and backwardly inclined baffie platesextendin from end to end.:

5. A sand sprea er comprising a receptacle having closed ends and back, a discharge slot along the lower side of the front, and downwardly and backwardlyinclined baffle plates adjustablyfastened to the ends of the receptacle.

6. A sand spreader comprising. a receptacle provided with a handle and having closed ends and back and a discharge slot along the lower side of the front, and a flexible flap adjustably attached to the receptacle andextending below and parallel'wlth ing strip to the downwardextension of the 7 back below the slot. V

8. A sand spreader comprising a receptacle having closed ends and back, a filling opening in the upper part and a discharge slot along the lower side of the front, baffle plates extending from the front downwardly and backwarclly and terminating at their rear lower edges a distance from the back, and a door for closing the filling opening.

9. A sand spreader comprising a receptacle having closed ends and back, a filling opening in the upper part and a discharge slot along the lower side of the front, and

baffle plates extending from end to end of the receptacle and from the front downwardly toward the back and inclined longitudinally downward toward the ends.

10. A sand spreader comprising a receptacle having closed ends and back and a filling opening in the upper part and a discharge slot along the lower side of the front, a flexible flap below the slot and a screen above the slot. a

11. A sand spreader comprising a receptacle having closed ends and back and an open front, end plates adjustab-ly fastened to the inner sides of the ends of the receptacle, baflle plates fastened at the ends to the end plates and extending from the front downwardly and backwardly toward the back, and a cross piece fastened at the ends to the end plates and forming with the lower part of the back an adjustable discharge slot.

In witness whereof I hereto affix my sig nature.

THEODORE KERNER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

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