US1761109A - Plasterer's float - Google Patents

Description

PLASTERER S FLOAT Filed Dec. l, 1927 Patented June 3,A 1930 UNITED STATES ,mariee LEO s. DIETZ, or zIoN, ILLINoIs, AssIGNoR oF ONE-HALF TofFKRANz DIETZ, or Zion, ILLINOIS PLAsTERERs-.FLOAT This invention relates to plasterers floats and its principal object is to provide a more efficient float than has been heretofore produced for smoothing the surfaces of sand finish coatings such as are now applied to rough plastered Walls. With the use of the ordinary plasterers float, scratches are left on the surface of sand finish coatings, owing to the presence of the gritty substances,

small pebbles and the like. I have discovered that ay plasterers float equipped with a resilient, cellular or sponge rubber body, enables the skilled and the more or less skilled plasterers to perform the Work of smoothing the surfaces of sand finish coatings without leaving any scratches on the surfaces of the walls. The invention consists, therefore, in a plasterers float having a flat body or surface portion composed 20 of a resilient, cellular or sponge rubber material. It further consists in the several novel features hereinafter fully set forth and claimed.

The invention is clearly illustratedin thedrawing accompanying this specification, in

which:

Fig. l isa perspective view of a plasterers float embodying a simple form of the present invention; Fig. 2 is a perspective view of the float showing the same rinverted and Fig. 3 is a detail enlarged perspective view, l

in section, of' a fragment of the float.

Referring to said drawing, which illustrates a simple embodiment of the presentY invention, the reference character 5 designates the backing or back piece of the float, which is of rectangular form and as a preference is made of hard rubber, although it may be lmade of libre, wood, metal or 40 other suitable stifl:l material.

piece is secured a handle 6 of conventional form as is customary.

On the side of the back piece 5 opposite to the handle, is secured a relatively thin,

flat, rectangular block 7 formed of resilient, cellular material such as sponge rubber and of substantially the same size and shape as the back piece 5. The face 8 of the sponge rubber block is smooth and non-cellular or substantially so and in securing the sponge To the back rubber iblock tothe back piece, the smooth face 8 is cemented to -theface of the back piece `5 by a suitable cement, such as4 a rubber cement. yThe'face 9 of the sponge rubber block vis made flat as by cutting a larger 'block into itwo or more pieces with a sharp instrument. i

As is'wellknown spongerubber material contains a great multiplicity of air cells, and

is very light and resilient. It is preferred toA use a sponge rubber'block of fairly rm body so that it will not compress too easily.

The float is designed for use in smoothing sand finish coatings, and it has been found from actual experience that a perfectlyr flat and smooth surface without scratches may be made with the use of a plasterers iioat embodying the present invention and that the more or less skilled plasterers produce better Work with this float than can be obtained by any float now in use. In spite of the presence of the gritty substances and small pebbles which are foundv in sand fin.

ish coatings of plastered walls, no scratches Vare left on the surface of the walls but a smooth, even, flat surface results from the use of the iioat.v The sponge rubber block being cellular or porous, the air cells become fllled with plasteringV material, but after the days work has been done, the sponge rubber may be easily washed, thereby ridding the sponge rubber block of the accumulated material. yIt has been found that although the sponge rubber block Wears away with use, it wears away smoothly and evenly and theblock may be usedy until the greater part of the rubber has been worn away, when the remaining part of .the sponge rubber block may be removed and a new one cemented to the back piece.

The float'may be made ofvarious sizes and the thickness yof 'the sponge rubber block may be varied as desired.

By the term cellulari I desire it to be understood as referring'to material containing a great multiplicity of air-cells separated bythin Walls, and resilient and pliable, such as rubber spongebut not cork or the like. Cork is unsuited for the purpose to which a plasterers oat is used in dressing down sand finish coatings.

I claim as new, and desire to secure by Letters Patent:

l. A plasterers float Comprising zt relatively still flat back piece, a handle secured on one side thereof, and a flat, pliable, cellular rubber body portion cemented to the other side of said back piece.

2. A plasterers float comprising a hard rubber fiat back piece, a handle secured to one side thereof and a flat body of sponge rubber materiel cemented to the other side of said back piece.

3. A plasterers float comprising a hard rubber fla-t back piece, a handle secured to one side thereof and a flat, pliable, cellularrubber body formed With a, smooth imperforate surface on one side cemented throughout its entire extent to the Hat side o the back piece opposite the one on Which the handle is secured.

Y LEO S. DIETZ.

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