US1070860A - Brush. - Google Patents

Description

Patented Aug.19, 1913.'I

A. "VANDERVELD.

BRUSH.

APPLICATION FILED IAN. 13, 1913.

#MAN e 4 if? @w1/huesca@ l UNTTED sTATEs PATENT EEtoE.

ANTHONY VANDERVELD, 0F GRAND RAPIDS, MICHIGAN.

BRUSH.

To all w/wm it may concern Be it known that I, ANTHONY VANDER- vELD, a citizen of the United States, and resident of Grand Rapids, in the county of Kent and State of Michigan, have invented a new and useful Improvement in Brushes, of which the following, taken in connection with the accompanying drawing, is a specifcation.

This invention relates to brushes and is especially related to the bristle setting and securing means by which the tufts of bristle are firmly secured to the brush blank or back. It is desirable in this connection that the bristle shall be securely held in the holes made in the back and that there shall be no probability of the bristle becoming loose so as to detach from the brush.

In this invention there is provided an absolutely safe and secure fastening or anchoring means which it is practically impossible to detach from the brush once it has been applied thereto without mutilating and destroying the brush, and one that holds the bristle securely in place by reason o-f this firmness of attachment to the brush. `Withal the fastening or anchoring means is very simple in construction and its cost of manufacture is a practically negligible factor.

@ther advantages will appear also, as the description of the embodiment shown in the drawings progresses.

In the drawings illustrating a .practical embodiment of my invention, Figure l is a side view of a brush in which the tufts of bristle are secured by my improved means, a portion being shown in section to disclose said securing means. Fig. 2 is a transverse sectional View taken substantially on the line a-a', Fig. 1. Fig. 3 is a longitudinal section of the brush, the section being on the plane of line 5 5, Fig. 2. Figs. 4 and 5 are, respectively, side and front views of the fastener or anchor used. Fig. 6 is a section through one of the holes in which a tuft of bristle is secured, showing the fastener immediately before it is bent to secure the bristle in place.

Similar reference numerals refer to similar parts throughout the several views.

The brush back 1 is of the usual shape and size and on its under surface, the brush in the drawings being shown as inverted, it is perforated in the usual manner to receive the tufts of bristle 2.

The fastener or anchor 8 is of the shape Specification of Letters Patent.

Application led January 13, 1913.

Patented Aug. 19,1913.

serial No. 741,832.

shown in Figs. 4 and 5, and it comprises a piece of metal longer than it is wide and flattened so that its thickness is much less than its width. At each end the fastener 3 is cut away leaving acute angular projections 4 and 5, and at one side a semi-circular piece is cut out as at (5, thereby weakening the fastenery centrally so that it will readily bend into the shape shown in Fig. 3. In applying this fastener to secure bristle tufts in the holes in back l, a tuft of bristle is centrally bent and placed between the downwardly projecting portions 5, lying in the angle formed between said projections. The tuft and fastener are inserted in a hole in the brush back and forced down until the bristle comes in contact with the bottom of the hole. It is then in the position indicated by Fig. 6. Pressure upon the top of the fastener, applied by means of a suitable tool or punch causes the fastener to bend at its weakened central section, and as the bristle bears against the sides of the fastener, the bending occurs in the direction of the width of the fastener. As the fastener bends, the angular projections 4 and 5 are forced from the vertical, and one of the projections 5 is forced into the wood at the bottom of the hole, while the projection 4 at the opposite corner of the fastener is forced into the wood at the side of the hole as shown in Fig. 3. At the same time, that portion of the fastener opposite the semi-circular recess 6 is forced against the side of the hole opposite the side into which part 4 is forced and under the pressure, presses into the wood as shown. The tuft of bristle is firmly secured under the fastener between it and the bottom of the hole, and it will be evident that it is impossible after the fastener is secured in the manner described, to get it out and thereby release the bristle without splitting and destroying the back 1. Any attempted straightening of a fastener caused in any manner as by apull on the bristle tuft will only the more firmly embed the parts 4 and 5 in the wood. It therefore is clear that a tuft of bristle attached to the brush back in the manner described is firmly and securely fastened and that it is practically impossible for it to become loose.

In the foregoing description, I have designated the angular projections on the fastener by different reference numerals but in shape and form they are identical.

I have disclosed a practical and fully operative construction embodying my invention. Such disclosure, however, though in specific terms, is merely diegramniiitic and illustrative of the invention, the proper scope of which is defined in the appended claims.

l/Vhzit claim and desire to secure by Letters Patent is tl. The combination of a brush back having an opening to receive bristles, and e festener having spurs et one end to embrace the middle of the bristles, and :ilse having :t spur at the upper end to engage' the wall of seid opening, said fastener being notched and bent et its middle and engaging the wall of the opening opposite to the upper spur, thereby secu-ring the fastener and bristles in the opening.

2. The Combination of t brush brick having an opening to receive bristles, ai fastener for securing bristles in seid opening, sai-1d `fastener consisting of :i flat metallic strip inserted lengthwise in the opening and hrw ing a recessed lower end and notched side,

it tuft of bristles centrally bentand inserted lin the opening under the lower end of the fastener, seid fastener being bent centrally opposite the notched side and engaging the wells of the opening.`

In testimony whereof I have hereunto set 30 i Copies of this patent may be obtained for ve cents each, by addressing the` Commissioner of Patents, Washington, 15. C.

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