US1576148A - Paintbrush - Google Patents

Description

H. SHULMAN March 9 1926.

PAINTBRUSH Filed June 11, 1925 2 v e r.

a INVENTOR v. fl/I/W) SHULMA/V MM ATTO dering.

Patented Mar. 9, 1926.

HARRY SHULMAN, OF NEW YORK, N. Y.

PAINTBRUSH.

Application filed June 11, 1925. Serial No. 36,315.

To all whom it may concern:

Be it known that I, HARRY SHULMAN, a citizen of the United States, and a resident of the city, county, and State of New York, have invented a new and useful Improvement in Paintbrushes, of which the following is a specification.

This invention relates to the manufacture of brushes and more particularly to paint brushes or the like.

The manufacture of paint brushes such as I used by artists andfor the finer grades of painting, it is desirable to produce a brush which will have a pleasing and symmetric, appearance and at the same time'have a maximum practical value.

Ordinarily when making a brush the bristles or tuft may be enclosed in a metal ferrule and vulvanized therein. This ferrule is then inserted in an outer casing having a handle. An edge of the casing is then crimped or headed to prevent outward movement of the ferrule which secures the bristles. The ferrule is further secured by sollVhen producing a brush without the use of an inner ferrule, the bristles are introduced into an outer casing and vulcanized therein. This method, however, although desirable from a manufacturing standpoint, requires the use of nails which pass through the casing and present a series of irregularities, thus marring the appearance of the outer surface of the casing and destroying the desirable unbroken surface thereof.

An object of the present invention is, therefore, to provide means for producing a brush, the bristles or tuft of which may be vulcanized directly in an outer ferrule or casing and held from displacement without the necessity of piercing the casing.

Another object of the invention is to provide a brush of a simple and practical construction having a ferrule or casing with a smooth outer surface.

A further object of the invention is to provide a brush ferrule having internal structure to which a tuft of bristles may tena-' ciously adhere when vulcanized.

A still further object of the invention is to provide a brush ferrule having locking members about which the bristlesof a brush may be vulcanized.

Other objects and advantages will be apparent as the description proceeds.

In practicing the present invention a ferrule is provided with relatively thin cross pieces preferably extending transversely of the ferrule' Ends of the cross pieces which may be termed locking members are suitably fastened to opposite interior surfaces of the ferrule. The bristles constituting a brush may then be insertedinto the ferrule and about the cross pieces and then vulcanized in the usual manner.

By reason of the present construction, the vulcanizing operation results in a bonding of the tuft of bristles to the cross pieces since the vulcanizing material adheres firmly to the cross pieces and to the adjacent bristles which are held in a hard solid mass.

The locking-members as provided by the present invention not only provide a better appearing brush than when nails are employed, but a further advantage is attained in the bonding of the cross pieces to the bristles. This is not possible when nails are used, since it is obvious that a nail driven through the vucanized portion of the tuft is disposed in an aperture slightly larger in diameter. than the nail and any pull tending to remove the bristles from the ferrule makes each nail a cutting edge since it has no union with the vulcanized portion of the brush.

The invention will be more fully understood by reference to the accompanying drawing, in which Fig. 1 is a side View of a brush embodying the present invention;

Fig. 2 is a transverse cross section taken on lines II-II in Fig. 1; and

Fig. 3 is a perspective view of a casing having locking members therein.

The present invention may be applied to various types of brushes. The one shown in the drawing includes the usual handle 5 attached to a ferrule or casing 6 in which a tuft of bristles may be vulcanized.

In accordance with the present invention the bristles are secured or locked from displacement by locking- members 8 and 9 which may bridge the space between the walls 10 and 11 of the casing 6. Any desirable number of locking members may be employed and as shown the two members 8 and 9 may be part of a continuous strip 12, a portion of which extends across a seam 13 of the casing. The said strip may be provided with lips or flanges 14- and 15. The

strip 12 may be of such proportions as to snugly fit the casing With the flanges 14 and 15 and the portion of the stripgopposite thereto in contact With the inner surfaces of the Walls 10 and 11 of the casing 6. The

strip may be secured in any suitable manneras by soldering.

When the end 16 of a tuft of bristles has been inserted in the casing,.th e,bri stles Willbe disposed along the sides of the strip. The portion 16 may then bevulcanized and it will be readily appreciated that when the portion 16 of the brush'is solidified in a compactmass about-the locking members 8 and 9, the adherence of the bristles to the-relatively largearea of the strips by reasonvof" the vulcanizing results in a strong bond and" the tuft of bristles is held from removal from the casing.

By reason of the present invention-I am able to makea brush of pleasingtappearance and at the same time retain th'e-re-.

quired ruggedness and durability.

Although a preferred embodiment of the invention is shown and described herein,- it

is to be understood that such modifications mayabe made therein as do'notdepart from the spirit or scope of the appended claims.

said opposite Wall and bristles secured in and projecting from said ferrule.-

2. A- paint brush comprising a split -tu-' bular ferrule, a locking member in said ferrule, said member comprising a bent metallicstrip having a relatively long section extending across and secured to the contiguous edges of the ferrule,-portions at opposite ends of said'section extending at right-angles from said section and to theopposite wall of the ferrule, said -portions havingfoot pieces integral therewith and secured to the said opposite Wall and bristlessecured in and projecting. from said ferrule.

In'testimon'y whereof, 'I have hereunto sub scribed my name this 3rd day of-June,- 1925.

' HARRY SHULMAN.-

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