US1817585A - Rubber brush - Google Patents

Description

Aug. 4, 1931. M. SAMUEL RUBBER BRUSH Filed F'eb. 12. 193g` Patented .Aug-4, 1931 i aux SAMUEL, or nos'rocx, ammini RUBBER BRUSH Application. med February 12,

The present invention relates to an improved brush for the cleaning of leather and the like or for a massage, the body of which is made ofsoft vulcanized rubber and is prol vided on one or more sides with rubber bristles or teet The action of such brushes improves with the sharpness of the bristle edges which come into action, for only these exercise a cleaning scrubbing action. Round bristles or teeth with semi-cylindrical very small cleaning power, but bristles and teeth of rectangular cross section with right angle edge angles have a better action.

According to the invention, a particularly good action is obtained by making the bristles or teeth in the form of three-edged prisms, so that the edges form acute angles. This shape of rubber bristles is preferably used 0 in such a manner that the longer bristles on one side are arranged in the form of vertiv cal prisms, whilst the shorter bristles on the opposite side and the teeth along the edges are arranged in the form of horizontal prisms. n The invention is illustrated by way of eX- ample in the accompanying drawings, in which y Figure 1 shows a construction of the brush, in which the hollow shaped body is pushed o over a stem or handle, in side elevation,

partly in section.- Figure 2 shows the brush in plan, and Figure 3 is a view looking from the bottom. Figure 4 shows another construction of the a5 brush without handle in side elevation, partly in section,l and Figure 5 is a view from the bottom, whereby only the left part of the brush is repreo sented.

The handle 1 of the brush shown by the Figures I-S is pushed with its flat end into a corresponding hollow space of' the brush body 2 which overlaps 'partly over thel shoulders of as to ensure a firm connection without the use cross section have al the handle 1 at 3 in such a manner 1980, Serial No. 427,879, and in Germany April 18, 1928.

the single rows of prisms being arranged in alternate directions if desired.

The lateral row 5 is set with small teeth 6 in the forni of horizontal three-edged members of prism-like shape.

On the side of the brush body of the longer bristles, are arranged bristles or'teeth 7 `which are pointed upwards and are of the shape of horizontal prisms.

.The brush represented by the Figures 4 and 5 consists of a full `haped body 8 having von the one side long bristles 9 formedas vertical three-sided prisms the bristles 10 of the opposite side being equal shaped, but shorter. The lateral row is set with small prism-like te'eth ll which are triangular in cross section, which give a sure holdfast foithe hand.

I claim:

opposite that.

y l. A brush consisting of an :integral body of rubber and 4rubber teeth thereon in the form of three-sided upright prisms.

2. A brush consisting of a substantially rectangular body of rubber and pairs of rows of rubber teeth in the form of upright prisms triangular in section, each pair of rows of prisims having their bases alined and back to ac c.

3. A brush consisting of a body of rubber and rubber teeth formed on the one side of the body as long, on the other as short threesided 'upright prisms.

4. A brush consisting of a body of rubber and rubber teeth formed on the one side of the body as long. on the other side as short three-sided upright prisms, the edges of the body having teeth of triangular cross-section with one side face attached to the body of the brush.

5. A brush consisting of a body with' long upright teeth on one side of the body, the other side and the edges having short teeth triangular in cross-section with one side face attached to the body of the brush.

In testimony whereof I aliix my signature.

MAX SAMUEL.

of further means. The longer bristles 4 ar-F ranged on one side of the brush body 2, are of triangular cross section and on the whole $0 have the shape of a' vertical three sided prism,

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