US2064949A - Brush - Google Patents

Description

' Dec. 22,1936. E. ROLKER 2,064,949

BRUSH Original Filed Aug. 17, 1954 Ema l!" Patented Dec. 22, 1936 UNITED STATES PATENT OFFICE BRUSH Edwin Rolker, Baltimore, Md.

Application August 17, 1934, Serial No. 740,347 Renewed May 13, 1936 2 Claims. (Cl. 15-192) This invention relates to a brush which can shown. The part 5 of the cap which fits against be made in quantity at very low cost, and which the face of the base has a longitudinal slot 5 is strong and serviceable. The details of the inwhich permits the cap to be passed downward vention will be clear from the following specifiover the handle, as indicated in dotted lines in 5 cation taken in connection with the accompany- Fig. 2, onto the base, the width of the slot being 5 ing drawing, in which, slightly greater than the diameter of the wire Fig. 1 is a perspective view of the brush; and the length of the slot being such that when Fig. 2 is a side view, the brush head being the cap is fitted onto the base of the brush head shown in section on the line 2-2 of Fig. 1, and, the end portions of the slot will fit closely against 10 Fig. 3 is an edge view of the brush, the brush the end portions l of the handle. The cap, thus 0 head being shown in section on the line 3-3 of fitting closely around the base and against the Fig. 2. handle ends, strengthens the connections be- Referring to the drawing, the brush head a tween the handle and the base of the brush. If comprisesa tuft of bristles I embedded at one desired the sides of the cap may be indented end in a fiat oblong base 2 of vulcanized rubber. slightly so as to interlock with the brush head 15 The handle b of the brush is composed of a wire, to keep the cap from coming loose. doubled somewhat sharply upon itself as shown The handle is flattened at the bend 3, as at 3 and from the bend 3 the two arms 4 of the shown, and this strengthens the handle against wire are bowed oppositely to form a gripping lateral spreading of the arms 4 and facilitates 2O portion, said arms coming close together near manufacturing of the brush by preserving proper the brush head, as shown at 4 thence diverging, spacing of the arms until the rubber has been as shown at 4 and the end portions 4 of the vulcanized. handle thence extending parallel with one an- What I claim is: other into the base 2 near the ends of the latter, 1, A brush comprising a fiat oblong base of 5 h ends of the a being flattened a u vulcanized rubber, a single tuft of bristles, subened. as indicated t so a o in rlock with stantially co-extensive with the length and width the rubber base. of the base, having one end embedded in said In making the brush. e b e a e p ima y base and projecting at one side thereof, a handle assembled in a close tuft by suitable mechanism projection from the opposite side of the base and and by cementing the coarse ends of the bristles comprising a wire doubled upon itself and hav- 30 together with rubber cement and. allowing this ing its ends spaced apart and embedded in to dry. The handle is arranged in a suitable the base near the ends of the latter, and a metal frame with the flattened ends uppermost and cap fitting closely around the edges and against projecting above the frame and a layer of raw the face of the base and having a longitudinal rubber of suitable thickness to form the base is slot through which the end portions of the han- 5 pressed downwardly over the projecting ends of dle extend, the end portions of said slot fitting the handle so that they become embedded in the closely against the end portions of the handle. rubber. The cemented end of the tuft of bristles 2. A brush comprising a flat oblong rectanguis then pressed downwardly into the raw rubber lar base of vulcanized rubber, a single tuft of and while the parts are in these positions and bristles, substantially co-extensive with the 0 the rubber is confined at its edges to give it the length and width of the base, having one end required shape, the assemblage is placed in a embedded in said base and projecting at one vulcanizing oven and the base is vulcanized. side thereof, a handle projecting from the oppo- The brush is finished by placing over the base site side of the base, said handle comprising a wire a sheet metal cap or ferrule c of oblong rectanbent sharply upon itself and flattened at the 45 gular form adapted to fit closely around the bend, forming arms, the ends of said arms beedges of the base as well as against its face ing spaced apart and embedded in the base. which forms the end of the brush head, as EDWIN ROLKER.

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