US297617A - Alfeed s - Google Patents

Description

3f NITED STATES PATENT OFFICE.

ALFRED s. MILES, or BROOKLYN, NEW YORK.

H BRUSH- BRlDL E.

SPECIFICATION forming part of Letters Patent No. 297,617, dated April 29, 1884.

Application filed April 18, 1883.

To aZZ whom it may concern:

Be it known that I, ALFRED S. Mines, of

Brooklyn, county of Kings, and State of New York, have invented certain new and useful Improvements in Brushes, of which the following is a full, clear, and exact description, ref erence being had to the accompanying drawings, and to the letters of reference marked thereon. I

My invention has relation to bristle-brushes, and especially to such as are used for varnish ing and painting; but, as will be understood from the following explanations, my improvements may be applied in connection with brushes used for any analogous purpose.

The object of my invention is to provide the brush with a simple, durable, and cheap appliance, which, when the brush is new and in use, will prevent undue spreading of the bristles at the edges. or margin, whereby the bristles are gradually worn away in the center of the brush and the brush otherwise unfitted for use, and which appliance may be readily detached when the brush is worn away enough, so as no longer to require support at the edges or outer margin. To accomplish this, my invention involves the application to the socket for the bristles of a stifiening-piece of metal formed and applied, as will be herein first fully explained, and then pointed out in the claim.

In the accompanying drawings, forming part of this specification, Figure 1 is a front elevation, and Fig. 2 an 'edge view, of a flat brush having one form of my improved device applied in connection therewith. Figs. 3 and 4 are similar views, showing a stiffening or holding appliance constructed and arranged to .opcrate on the same principles as the corresponding device shown in Figs. 1 and 2, but made of flat metalinstead-of wire. Fig. 5 is a perspective of the wire-support shown in Figs. 1 and 2, as it appears when detached from the bristle-holder; and Fig. 6 is a similar view of the flat-metal support shown in Figs. 3 and 4, all in accordance with my invention or improvements.

In all these figures like letters of reference, wherever they occur, indicate corresponding parts. I

In the use of fiat brushes of the character to which my improvements are applicable, it is (No model.)

found that the central part of the brush wears away faster than the edges, leaving the end of the brush hollowed out in themiddle, and this results from the fact that, the bristles at the edges are more free to spread out under the pressure 'upon the brush, the bristles at the center being supported in a great measure by those surrounding thecentral part, and thus rendered less elastic. When the brush is so worn, it is difficult to. apply the varnish or paint with it evenly in all parts of the stroke, the central part carrying and delivering much more material than the edges, thus leaving streaks,-which require frequent brushing to re move. So, too, with a flat brush worn as above explained, it is difficult to reach into corners and produce uniform work, because the brisa ties at the edges, being longer than those at the center, will bend too much and not deliver the required amount of paint, rendering frequent brushings necessary. When the round or ey lindrical brush is employed, the exterior bristles spread in the same way, and much care is required of the operator to so handle his brush when it is new that it will wear away so as to leave a swallow-tail or wedge-shaped end. Otherwise it will wear to the form of a cone, and thus be'practically useless for spreading the paint evenly, as required. To avoid this in round brushes, painters have a habit of bridling the brush with a bit of string, which is liable to slip and to interfere with the proper use of the brush, and oval brushes have been made with a view to preventing the formation of the conical point, but without obviating the spreading of the exterior bristles. With my adjustable metallic bridle the round brush may be compressed to oval form, if desired, and in any event the brush may be stiffened the same as the fiat brush.

I11 the drawings, A represents the handle of any brush, B the socket for holding the base of the bristles or brush, and O the brush itself. These of course may be of any size or general pattern. I have chosen to represent that class of brushes wherein the socket employed is made of metal; but obviously the socket might be of any required material. At or near the outer margin of the socket I attach a supporting-wire, as D, Figs. 1 and 2. This being of inetal is, in the case of the fiat brush, most conveniently attached to the metal socket by use of a small quantity of solder, or by the method known as tacking. It is attached so securely that there will be no danger of its being displaced during ordinary use of the brush, and it is made stiff enough to firmly hold the bristles at the edges of the brush. For this purpose the support D is made to extend beyond the margin of the socket, and far enough to insure proper bearing against the marginal bristles, so that they shall be supported quite as effectively as are those in the center of the brush.

The attachment of the wire, Figs. 1, 2, and 5, is of such a character that it can, by use of a knife or other tool, be easily detached from the socket, so that when the brush is worn down considerably it can still be used by removing the supporter or bridle. \Vhen so worn, the edge bristles will, being shorter than before, be much less yielding and less liable to spread, wherefore the brush can be used until all the bristles are worn down to the limit of their usefulness, whereas heretofore when the brush became too much hollowed out in the central part it had to be cast aside as useless.

Instead of makingthe rigid supporter in the form of a wire, it may be made of ilat metal. as indicated in Figs. 3, 4, and 6, of two piecesone for each edgethe pieces being tacked up 011 the socket, and arranged to sustain the edge bristles and to be easily detached, the same as in the case of the wire supporter.

Being thus constructed and arranged, the improved appliance will be found to admirably answer all the purposes or objects of the in vention as previously set forth, to obviate all the disadvantages named in connection with the use of old forms of fiat and cylindrical brushes, and to render the brush more efficient, more lasting, and more easy to be used for the purposes intended.

I am aware that it has heretofore been proposed to employ a hinged frame for supporting the brush-bristles. This frame, besides being applicable upon only particular sizes of brushes and expensive to make, is disadvantageous in that it forms pockets at its lower margin, which become filled with paint or varnish when dipped in the pot, and this runs down upon the handle when the brush is raised for use. In my construction the supporting-pieces make a close joint at bottom with the bristle-socket, and are soldered in place in amanner to avoid the formation of the paint-collecting pockets above referred to. I make no claim to this old form; but,

Having now fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

The herein-described bristle-supporter soldered to the bruslrsocket, extending up to support the bristles at the margin of the brush, and arranged to be detached, substantially in the manner and for the purposes set forth.

In testimony that I claim the foregoing I hate hereunto set my hand in the presence of two witnesses.

ALF. S. MILES.

Vitnesses:

J OHN B UCKLER, Woirrn Oseooii.

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