US1451350A - Method of constructing brushes - Google Patents

Description

Apr. '10, 1923.

W. UNGER METHOD OF CONSTRUCTING BRUSHES Filed Jan. 5, 1922 E va/7Z0 5 a. sm am I Patented Apr. 10, 19230 WILLIAM uncan, or woosrna, 'oln o METHOD" or oonsmaucrrne BRUSHES.

Application filed January 3, 1322'. Serial 110,526,800;

To all whom it may concern:

Be it known that IVILLIAM UNGER, a citizen of the United States, residing at WVooster, in the-county of WVa yne and State of Ohio, have invented a new and useful Method of Constructing Brushes, of which the following is a specification.

Myinvention relatesto improvements in brushes, and particularly to improvements in method of construction. Its principal object is to provide a novel method of' constructing brushes of all kinds for painting, calcimining, and other kindred uses, by the elimination of head bands or ferrules, and nails or other fastening means heretofore employed in their construction, for fastening bristles in the brush block or head; secondly, to simplify and cheapen manufacture, and make the bristles more compact within the block and the brush more durable.

My improved method is particularly described in the following particulars, and stated in the appended claims.

My invention is illustrated by the accompanying drawings in which similar'letters and figures of reference indicate like parts. Referring thereto, Fig. 1 is a sectional side view of a brush showing my improved method of securing the brush material within the brush block. Fig. 2 is a view of one of the bunches of brush material, detached; 'Fig. 3 is perspective view of an assembled line of brush material for insertion in the brush head;

Fig. 4: is a horizontal cross section of Fig.

1 on the dotted line 22; and Fig. 5 is a vertical cross section of the brush block for a single line of brush material.

block, one of which is empty.

In the drawings, A is the brush blockso called, B an assembly of brush material, and C the ordinary brush handle. The form of block and handle is immaterial, except the furrow or channel D therein, which is out about three eighths of an inch deep, and of width sufficient to receive a single line of assembled brush materialsuch 00 as shown in Fig. In connection with the block A having one or more channels cut therein as aforesaid, I use the following novel method of assembling and securlng teri al B. p i

A quantity of brush material such as.

Fig. 4 also shows two furrows in the Y in the channel's D the mass of brush ma bri'stles or the like", is, laid out in afiat. mass er; sufficient thicknesstoshugly fill the channel D, the but't ends of t-h'e"bris"tles ior other brush material are trimmed off even ly, and in stitches of about one fourth of an inch in width, are sewed together by a strong cord cl at a distance from the adjacent ends of the bristles b of about one fourth of an inch, so as to bring the line of the cord' stitches just below the top of the channel D, when the brush is completed.

After sewing, the body of the brush has the appearance of an assembly of bunches of brush material, as shown singly in Fig. 2, the cord cl being drawn tightly around each bunch from opposite sides, as therein shown. n

Thus assembled, the sewed together bunches b 6 lie closely against each other in a. continuous row, as shown in Fig. 3.

The length of the stitch of the sewing cord may be varied to suit the needs of the material used in the brush. After sewing, the

several knots of brush material 00111131156 nel, and the brush is then set aside in a kiln until thoroly dried when it is ready for immediate use.

Thus it is apparent, a brush is construct ed without the use of either ferrule or nails or other fastenings heretofore employed in manufacture.

The tightly enveloping cords of the seam holding together the individual knots of brush material,

sembled asaforesaid, when hardened, produce a very elastic and durable brush. The

and the saturation of cement in and about the several knots asthickness of the brush may be increased to a any. desired size by making additional channels inthe brush block, and,in such'case the several channels may unite at their respective ends, to give a better finish to the brush, and the several parts may be modiassembled brush material, saturating the butt ends of the brush material assembled with a liquid cement, and, finally, inserting and pressing the line of sewed together butts into the channels, respectively, partly filled with a liquid cement, and then dry hardening the cement.

2. The herein described method of constructing a brush, comprising the insertion and pressing into a channel of a brush head or block, of a fiat line of brush material sewed together with a strong cord seam across the butt ends of the line, after filling the channel with a liquid cement, and then dry hardening, substantially as set forth.

I15 witness whereof, I hereunto set my han WILLIAM UNGER.

, In presence of two witnesses:

L, H. NIssER, HIRAM B; SWARTZ.

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