US1685526A - Lather brush - Google Patents

Description

Sept. 25, 1928.

O. D. EARON LATHER BRUSH Filed 001;. 18, 1926 Patented Sept. 25, 1928.

- UNITEDSTATES PA-TENT OFFICE.

' ORVILLE D. Anon, or MONTCLAIR, NEW JERSEY, ASSIGNOR TO I I MONTCLAIR, NEW JERSEY. 1

ISABEL BARON, OF

. LATHER BRUSH.

Application filed October 18 1926. Serial No. 142,262.

The inventionv relates to round rubberset brushes, and moreparticularly to lather or shaving brushes.

It is now common practice in the manufacture of brushestoset the butt end of a knot of bristles in rubber, and then draw the knot through a metal ring of smooth bore,'until the butt end is flush with the outer edge of the ring. The knot and ring are then placed 10 upon a steam table and the rubber vulcanized. After the latter operation, the working end of the knot of bristles is passed through a ferrule made'ofpyroxylin or any other suitinexpensive and novel provision is made for. securing the knot of br1 stles against rotation.

and longitudinal movement in the ring and 25 for securing the ring against rotation 1n the ferrule.

The invention consists in the several novelfeatures hereinafter set forth and more par- 'ticularly defined by the claims at the con- 80 clusion hereof. i

In the drawing: Fig. 1 is an elevation of a brush embodying the invention, parts being shown in section. Fig. 2 is a section taken on line 2-2 of 1. Fig. 3 is a perspective of the ring in which the bristles are secured. F ig. 4 is a. perspective of the ferrule.

In the manufacture of brushes, according to the present invention, a knot or group of bristles 4: is set in rubber or any other suitable and similar material, and then drawn through a cylindrical metallic ring 5 until the end of the bristles set in the rubber is flush with the outer edge of the ring. This ring is formed of slightly resilient material end, a pair of teeth 6 and a pair of teeth 7. The teeth of each pair are V shape in cross section and extend longitudinally. Teeth 6 extend inwardly and are disposed diametrically opposite each other. Teeth 7 extend outwardly and are disposed at right angles to teeth 6. The inner edge of ring 5 is flared inwardly as at 8. To set the bristles, the rubber is vulcanized by applying steam to to the ring and the butt end of the knot. Durand has indented therein adjacent its outer ing the vulcanizing processthe rubber flows around teeth 6 and into the cavities 9 of teeth 7. The rubber also flows between the flared portion 8, and the inner ends of teeth 6. When the rubber hardens, the portion ofthe setting wh ch extends into the cavities 9 and around the teeth 6 will securely-lock the knot against rotation in the ring, andthe porion of the setting which. extends between the flared portion 8 and the inner ends of teeth 6 will securely lock the knot against longitudinal movement. To complete'the brush, the vulcanized knot is inserted into a ferrule or annular brush body 10 which is formed of pyroxylin or any othersuitable material. The knot is for'ced through until the ring is positioned in the ferrule,'fas shown in Fig." 1. T heupper end of ferrule 10 has a, bore which corresponds to the outer periphery of ring 5, and the lower end of the ferrule is constricted, as at 11, to form a seat or shoulder for the flared portion 8 of the ring 5 so that the ring can not pass through the ferrule. During the forcing operat-ion,-teeth 7 dig into and imbed themselves in the sides of the ferrule so as to secure the ring in the desired position and to hold Y it against rotation in the ferrule. After ring 5 has been forced into position, a suitable adhesive or cement is poured into the ferrule and a handle 12 which has an extended portion, is secured therein. V

The invention exemplifies a lather brush in which novel provision is made for securing the knot and ring against relative rotation and longitudinal movement, and for securing the ring against rotation in the ferrule or brush body.

This application is, in part, a continuation of an application Serial No. 57,500,filed by me September 21, 1925.

The invention is not to be understood as restricted to the details set forth, since these may be modified within the scope of the appended claims, without departing from the spirit and scope of the invention.

Having thus described the invention, what I claim as new and desire to secure by Letters Patent, is: p

1. In a lather brush, the combination of an annular body, a ring in the body, a knot of bristles having one end thereof in the ring, said ring being provided with an outwardly extending tooth imbedded in the body to rigidly secure the ring against rotation relative- 7 body.

1y to the body, and a handle seeu'red'to the 2. In a lat-her brush, the combinationofannularbody, aring in the body, 3,;kn0t of bristles having one end thereof in the ring; said ring having indented therein a pair or outwardlyextending teeth the teeth beingiixn" bedded in the body to secure the ring against rotation relatively to the'body, anda handle secured to the body.

' 3; Ina lather bragnthe combination of'an annulanbody, a mag in the body, a knot of br stles; having one end thereof 1n the ring,

said ring having indented thereii'ia longitu ,dinally extending tootn, the tooth be ngzvannular body, a ring in the body, bristles having'one' end thereof secured together 'byb'inding material and disposed in the ring, said,

ringhaving an outwardly extendingtooth and an inwardly extendil'i'gg" tooth, the outwardly extending tooth being iinb'edded in the body to secure the r ng against rotat1on,the inward- 1y extending too'thbe ing;- 'i inbedded in the material' to 's 'eeurethe brie'tle s'afg'ains't rotation, anda'handles'eeuiedtothe body.

' 5.11m. lather brush, the combination of an annhlar body, a ring in the body,' biistles hav ing one end thereof secured together by bindmg material and disposed in the ring, said ring havrng ndented thereln a pa1r ot-out- V Wardly extending teeth and a pair ofinwardly e'Xte'nding teeth, said pairs of teeth extending.

at right angles to each other, the outwardly extending teth being imbedded in the body tosecure thering against rotation, the in tv ard'ly extending teethbinfiiihbedded in the inatria-l to secure the bristles against rotation, and a handlesecured to tliebody: i a

V 6. In a latliefbru sh; theeoihbin'atmii of an annular body, a'ring' in the ,body,-bri'stles s e- Curjed together at one end by'binding inaterial, said one end of the bristles being" disposed in the ring", ring ha ing struck therein an outwardly extending tooth, said tooth being ,iinbfe'dded in the body to secure the ring against rotation, a Portion of theinaterial extending into the eayity'in the ring resultingi fronithe for nationof the tooth tos eeureth'e brieflesagainst rotation relatively to the ring. and a handle secured to the body. A

Signed at Montelair, New Jersey, this 13th day o fOCtober, 1926.

ORV'I'LLE n; macaw.

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