US1405938A - Brush and method of making same - Google Patents

Description

G. RASMESEN, In.

BRUSH AND METHOD OF MAKING SAME.

APPLICATION FILED APR- 3, I919.

Patented Feb. 7, 1922.

2. SHEETSSHEET 1.

G. RASMESEN, JR.

BRUSH AND METHOD OF MAKING SAME.

APPLICATION FILED APR. 3. 1919.

1,405,938. Patented Feb. 7, 1922.

2 SHEETS-SHEET 2.

UNITED STATES GEORGE RASIIESEN, JR, OF WINNETKA, ILLINOIS.

BRUSH AND METHOD OF MAKING SAME.

Application flied April 3,

To all whom it may concern:

Be it known that I, GEORGE RASMESEN, J r., a citizen of the United States of America, and a resident of Winnetka, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Brushes and Methods of Making Same, of which the following is a specification.

The main objects of this invention are to provide an improved wire brush particularly adapted for use in quickly and easily removing hard scale or coatings from various surfaces or objects; to provide an improved method of forming a number of strands of wire into a tuft of bristles; to provide an improved form of brush stock for supportin the bristles; to provide an improved meth of fastening the wire tufts in the base of said stock; to provide an improved form of handle for said brush; and to provide improved means for securing all of the parts of said brush in their assembled relation and the tufts of wire against displacement.

Illustrative embodiments of this invention are shown in the accompanying drawings, in which Fig. 1 is a perspective view of one form of brush constructed according to this invention.

Fig. 2 is a transverse sectional view of the brush showing the improved manner of securing the parts of the brush in their assembled relation.

Fig. 3 is a fragmentary view of the base and cover members of the stock.

Fig. 4 is a view, partly in section, of a tuft showing a modified form of means for securing the tuft to the base of the stock.

Fig. 5 is a view, partly in section, showing one of the bristles mounted in the modified form of fastening means shown in Fig. 4.

Fig. 6 is a view similar to Fig. 5, showing the position of each brlstle as the tuft is being inserted into the fastening means.

Fig. 7 is a bottom view of one of the tufts of bristles.

Figs. 8 and 9 are diagrammatic plan and sectional elevation views, respectively, of means for following out the improved method of forming the tuft of bristles.

Figs. 10 to 14 are diagrammatic views of the several successive steps followed in forming a tuft of bristles.

In the specific embodiment of this invention illustrated in the drawings, the brush comprises a stock 1 supported on a handle 3 Specification of Letters Patent.

Patented Feb. 7, 1922.

1919. Serial No. 287,144.

and having a plurality of tufts 2 of wire bristles secured to one face or end of said stock.

The stock 1 comprises a pair of members of cylindrical form constituting a base 4 and a cover 5, the annular flanges 7 of which are arranged to have telescoping engagement. A plurality of apertures 8 are drilled or otherwise formed in the base member and provide outwardly disposed burrs 9. The flange 6 of the base member 4 has a pair of recesses 10 (see Fig. 3) extending inwardly from the outer edge thereof at diametrically op oslte points.

ach of the wire tufts 2 is formed of a bunch of strands of spring wire doubled or bent upon themselves to form a head 11 and then bent outwardly to form a contracted neck 13, and whereby the bristles 12 extend outwardly away from each other. After being thus doubled upon themselves and bent outwardly, the bristles are then preferably arranged in two groups with the doubledover part of one group disposed transversely of the doubled-over part of the other group, substantially as illustrated in Fig. 4.

The improved method of forming these tufts of wire is diagrammatically illustrated in Figs. 8 to 14, inclusive. For the purpose of illustration, the machine is shown in said views as comprising a block or base 16 having a slot or groove 17 formed in the face thereof and a reciprocating member 18 mounted so as to move a pin 19, carried by said member, into and out of said slot. In forming the tufts, a bunch of wires is placed on the block 16 across the slot 17, the middle of said bunch of wires being located directly above said slot, as shown in Fig. 10. The reciprocating member 18 is then set in motion so as toforce the pin 19 downwardly into the slot 17 in the block 16, thereby doubling the wires upon themselves as shown in Fig. 11 and forming the head 11 with the two sets of free ends disposed substantially parallel to each other. While the members 16 and 17 remain in this position. the two sets of bristles are bent outwardly away from each other, transversely to their upright position as shown in Fig. 12, thereb forming a contracted neck portion 13 a. jacent to the head 11 and causing the bristles to extend outwardly away from each other. The bristles are then bent or spread transversely to their last-mentioned position, as indicated by Fig. 13, so that the abrading ends are substantially uniformly spaced apart in arcs. The bristles are next flexed so as to bring the abrading ends together to permit the bristles to be passed into the binding member, as shown in Flg. 14. The member 18 is then retracted so that the tuft may be removed from the pin 19 and the binding member shifted down around the contracted neck 13, as shown in Fig. 5. As this is done, the wires as a rule have a tendency to arrange themselves in two groups, with -.the doubled-over ends of one group disposed transversely to the doubled-over end of the other group, as more clearly illustrated in Fig. 4. This is due to some peculiarity developed in the bending of the tuft of wires. If this transverse disposition of the wires into groups does not take place automatically it may be effected manually by merely shifting some of the wires so as to be transversely disposed to the others. By virtue of this transverse disposition of the wires, the final result is that the abrading ends form themselves into a circle as indicated in Fig. 7. This circular formation of the abrading ends is facilitated by reason of the fact that the apertures in the binding members are likewise circular.

When the binding members for the tufts are formed separate from the member 4, as shown in Figs. 4, 5, and 6, the apertures 8 in the member 4 are of sufficient size and shape to enable said separate binding members or plugs to be forced into said apertures 8 and frictionally secured in the seats formed by the burrs 9. The tufts 2 are seated in apertures 15 formed in the plugs 14 in substantially the same manner as the tufts are seated in the apertures 8 of the construction shown in Fig. 2.

The handle 3 preferably comprises a strip of metal of substantially uniform cross-section throughout its length, said strip being bent to the form shown in Fig. 2 so as to embrace the flange 7 of the cover 5. The ends 15 of the handle are bent inwardly so as to extend through the recesses 10 and be located between the base and the cover members when the stock is assembled.

In assembling the stock, the two parts are partly filled with a solid substance 16, such as cement, and then fitted together, whereupon the stock is practically full of said substance. This solid substance fills in the interstices of the heads 11 of the tufts so that, upon hardening, the bristles are firmly secured in place. Likewise the parts 4 and 5 of the stock are secured together with the handle 3 in proper position.

It will of course be understood that the illustrations in Figs. 8 to 14 are diagrammatic. and that the bunch of wires is represented by a few lines which appear more regular in form than is the case in actual practice.

Although several specific embodiments of this invention have been herein shown and described, it will be understood that numerous details of the construction shown may be altered or omitted without departing from the spirit of this invention as defined by the following claims:

I claim:

1. A brush, comp-rising a tuft of bristles formed of a bunch of wires doubled upon themselves and the free ends of said bristles bent away from each other, some in one direction and some in another, adjacent to the doubled-over part and thereby causing the free ends of said wires to extend outwardly away from each other with the abrading ends thereof disposed substantially in the form of an annulus, and a stock for supporting said tuft of bristles.

2. A brush, comprising a tuft of bristles formed of a. bunch of wires doubled upon themselves, said wires being arranged in two groups transversely disposed to each other with the free ends bent away from each other, some in one direction and some in another, adjacent to the doubled-over part and thereby causing the free ends of said wires to extend outwardly away from each other with the abrading ends thereof disposed substantially in the form of an annulus. and a stock for supporting said tuft of bristles.

A. brush, comprising a tuft of bristles formed of a. bunch, of wires doubled upon themselves to form a head and bent .away from each other, some in one direction and some in another, adjacent to the doubledover part and thereby causing the free ends of said wires to extend outwardly away from each other with the abrading ends thereof disposed substantially in the form of an annulus, said bends forming a. contracted neck portion adjacent to said' head, and a comparatively thin apeitured plate adapted to support said tuft of bristles by having said contracted neck portion seated in said apertures, whereby said tuft of bristles is embraced by said stock only at said contracted neck part.

4. A brush, comprising a. tuft of bristles formed of a bunch of wires doubled upon themselves to form a head and bent adjacent the doubled-over part to cause the free ends of said wires to extend outwardly away from each other. said bends forming a contracted neck portion adjacent said head, a hollow stock comprising a pair of openended telescoping members, one of said members having an aperture formed therein of less diameter than said head and through which said tuftof bristles is adapted to be inserted, abrading ends first, whereby said member supports said tuft of bristles by having said contracted neck part seated in said aperture, and a concrete mixture substantially filling said member and adapted some in another, adjacent to the doubled over part and thereby causing the free ends of said wires to extend outwardly away from each other with the abrading ends thereof disposed substantially in the form of an annulus, said bends forming a contracted neck portion adjacent said head, a

stock having an aperture formed therein, and a thin apertured plug adapted to be secured in said aperture, said plug being adapted to support said tuft of bristles by having said contracted neck part seated in said plug aperture, whereby said tuft of bristles is embraced by said stock only at said contracted neck part.

6. In a Frush, a hollow stock comprising a pair 0 open-ended telescoping members, a tuft of bristles secured to one of said members, a handle having its ends embracing the edges of the other said member and extending inwardly from said edges, and a solid substance in said stock and imbedding the ends of said handle therein for securing'said handle and members in their assembled relation.

7. The method of making a tuft of wire bristles for a brush, which consists of doubling a bunch of wires upon themselves, then bending the free ends of said bristles adjacent said doubled-over part outwardly away from each other, then spreading said bristles transversely to their previous position, and then securing said wires together adjacent to said doubled-over ends.

8. The method of making a tuft of wire bristles for a. brush, which consists of douthen bending the free ends of said bristles adjacent said doubled-over part outwardly away from each other, then spreading said bristles transversely to their previous position, then effecting the arrangement of said bristles in two groups with the doubled-over parts of one group disposed transversely of the doubled-over parts of said other group, and then seeming said wires together adjacent to said doubled-over ends.

9. The method of making a. tuft of Wire bristles for a brush, which consists of dou bling a bunch of Wires upon themselves, then bending the free ends of said bristles adjacent said doubled-over part outwardly away from each other, flexing said free ends so as to bring them together and inserting them through an opening in a binding member.

Signed at \Vinnetka, 111., this 31st day of March, 1919.

GEORGE RAS-MESEN, JR.

'bling a bunch of Wires upon themselves,

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