US2101799A - Brush - Google Patents

Description

Dec. 7, 1937. G. ROWLAND 2,101,799

BRUSH Filed Jan. 16, 1935 Q\\1\ \\\k r&\\\\\\\ m Patented Dec. 7, 1937 UN1TED NSTATES BRUSH Clarence G. Rowland, Newington Junction, Conn., assignor to The Fuller Brush Company,

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Hartford, Conn., a corporation of Connecti- Application January 16, 1935, serial No. 2,073

5 Claims.

My invention relates .to the class of articles above mentioned, and an' object of my invention, among others, is to provide a means for economically forming the backs to receive the brush material and in which backs said material will be tightly held in a. very efficient manner. One form of a brush embodying my invention and in the construction and use of which the objects herein set out, as well as others, maybe attained is illustrated in the accompanyingdrawing in which Figure 1 is a plan view of my improved brush blank. f

Figure 2 is a view in cross section through the same.

Figure 3 is a similar view showing a slightly modified form of construction.

Figure ,4 is another similar view showing an-y other modied form of construction.

'Figures 5, 6 and 7 are detail views showing the final form of brushes embodying. the blanks shown in Figs. 2, 3 and 4.

In the accompanying drawing the numeral 8 denotes a strip of metal having ribs 9 bordering the strip on opposite sides, leaving a space i which extends lengthwise of the strip and as shown in Fig. 1 of the drawing. This strip is folded lengthwise into a shape shown in Fig. of the drawing, with the bristles Ii projecting from within the backs through the slots I2 created by the bending or folding operation. The strip 8 may be of indefinite length and the folding or bending operation may be accomplished by means of a machine, which machine also inserts the bristles and folds them so that at the endof the operation V said bristles are securely bound and pinched between the lips I3, the ribs 9 providing a restricted pressure neck lying on opposite sides of the mouth of the groove and between which the bristles are-securely held in place. These lips are rounded as at i4 so that the bristles, as they are flexed in use, will have o. long bend over the rounded corners and therefore be prevented from breaking oif at this point.

If desired a holding rod i5 may be inserted in the folds of the bristles within the backs. this rod serving an additional means for retaining the bristles in place. f.

In that formrof structure shown in Figs. 3 and 6 the essential characteristics are substantially the same as just described, the ribs, however. be-

ing composed of a folded edge I6 at opposite borders of the backs I1, this piece when folded functioning in practically the same manner to hold the bristles as in the device shown in Figs.A 1. 2 and 5.

In the structure shown in Figs. 4' and 'I the ribs i8 are beveled on opposite sides, as shown in Fig. 4, so that when the strip i9 is bent to the final shape shown in Fig. 7 with the bristles secured therein the latter will pass through the narrow throat outside of which there is a. mouth with sloping walls 2| to receive the bristles and thereby preventsharp bending and consequentbreaking thereof. Y

. In accordance with the provisions of the patent statutes I have described fthe principles of operation of my invention, together with the device which I now consider to represent the best 'embodiment thereof; but I desire to have it understoodthat the device shown is only illustra tive and that the invention may be carried out by other means and applied to uses other than those above set out within the scope'of the appended claims.

I claim:

1. A brush back comprising a strip of material having a lengthwise groove and having a continuously thickened edge extendinglengthwise thereof to provide a restricted pressure Vneck to retain the bristles in place.

2. A brush back comprising a strip of material of substantially uniform thickness and having a lengthwise groove having its edge border shaped to create continuously thickened edges extending lengthwise thereof to provide a restrictedpres-- sure neck to retainV the bristles in place.

3. A brush comprising a back formed from a strip of material of substantially'l uniform thickness thickened continuously along its opposite edges and having a groove extending lengthwise to provide a restricted pressure neck, and bristles secured within said back and projecting with their free ends outwardly through said pressure neck. Y

4. A brush comprising a back formed from a strip of material of substantially uniform thickness formed lengthwise at opposite edges to provide continuously thickened borders extending lengthwise thereof, said strip having a groove extending lengthwisel and said borders comprising a restricted pressure neck, and bristles selengthwise center extending continuously therealong and beveled in opposite directions, said strip having a groove extending substantially along its lengthwise center to create a restricted pressure neck formed byrsaid ridges, and bristles secured within said back and projecting with their free ends outwardly through said pressure neck.

, CLARENCE G. ROWLAND.

cured within said back and projecting with their

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