US576866A

US576866A - Brush

Info

Publication number: US576866A
Authority: US
Publication date: 1897-02-09
Anticipated expiration: 1914-02-09

Description

(No Model.)

P. N. LOUK. BRUSH.

No. 676,666.v Patented Peb. 9, 1897.

UNITED STATES PATENT VOFFICE..

'i 'FRANK N. LOOK, OF NORTHAIWIPTON, MASSACHUSETTS.

BRUSH.v

SPECIFICATION forming-.partof Letters Patent No. 576,866, dated February 9, 1897.

Application filed August 22, 1894. Serial NoA 521,039. (No model.)

To @ZZ whom t may concern:

Be it known that I, FRANK N. LOOK,a citizen of the United States, residing at Northampton, in the county of Hampshireaud State of Massachusetts, haveinvented certain new and useful Improvements in Brushes, of which the following is a specification, reference being had therein to the accompanying drawings.

VMy invention relates to ybrushes of that class in which the body of the brush consists of a metallic shell, the latter usually being constructed in two parts or shells, namely, an upper portion or half, which is termed the back, and a lower portion or half, which is termed the face, the latter being perforated for the reception of bristles. Brushes have hitherto been made in which the back and face shells comprising such a body-shell are secured together by overlapping or interlocking the edges or flanges of the back and face shells without the employment of solder or other securing means. Such brushes have also been reinforced by placing Within the back and face shells suitable reinforces of wood or composition, the wooden reinforce being secured to the said shells by the use of an adhesive, such as shellac.

My present invention has for its object to provide a strong and durable brush of the class mentioned of simple and inexpensive construction and which will embody the desirable features of the brush above mentioned.

In the drawings, Figure l is a partial cross-section of a hair-brush embodying my invention. Fig. 2 is a similar section showing a slightly-modified form. Figs. 3 and 4 are similar sections showing other modilications.

At 1 in the drawings is shown the upper portion or back of a two-part metallic bodyshell, and at 2 the lower portion or face thereof. The shell for the face is perforated for the reception of the tufts of bristles 3. The

Y inner ends of the tufts of bristles project inside said shell, and are shown as enlarged by burning in the well-known manner. For the purpose of holding them securely in place, as also of stiffening and reinforcing the shell for the face, said shell is lled or partially filled with a mass of composition 4, which is placed in the shell in a plastic condition and is then allowed to set and harden. Various well-known compositions may be employed for this purpose. The composition when placed in the shell flows around the inner ends of the tufts of bristles, which become embedded therein, and are thereby held firmly in place. The shell for the back, after being molded or formedl to the shape required by dies or the like, is provided with a reinforce of Wood 5, which is formed to the required shape and is applied thereto and molded therein under pressure, the shell being preferably placed in a die and the wood being molded therein to conform to the shell. In the molding operation the Wood is also densified and forms a firm but comparatively light reinforce for the metal shell, which stilfens the said shell and prevents it from collapsing and being indented. Before the wooden reinforce is placed in the shell the contact-faces of the shell and wood are preferably covered or coated with an adhesive, such as shellac or the like, so that after the molding operation the metal shell and wooden reinforce are firmly secured together.

The wooden reinforce 5 and the mass of composition laV preferably fill the shells, so that when the two latter are placed together to form the completed brush the edges of the metal shells will abut, as shown in Fig. l. For the purpose of securing the parts,namely, the face and the back, firmly together I employ a series of` nails 6, preferably screwnails, which are passed through the face and enter the wooden reinforce 5. The heads of these nails lie closely upon the surface of the face of the brush, the most of them being among the tufts of bristles, and do not interfere with the use or appearance of the brush, while they form a positive and strong means of rmly securing the parts together, which may be rapidly applied in the construction of the brush without the aid of skilled workmen.

As will be. obvious, the contour of the reinforce 5 may be made to conform to any contour of shell, and the contours of the shells will dier with the character of the brushA which is to be constructed. In the case of hair-brushes having a handle the reinforce may be extended into the handle.

lOO

In the modification shown in Fig. 2 the edges of the shells do not abut, but the upper shell 19 is formed of larger size than the lower, and its edge extends beyond the surface of the wooden reinforce 5. Then the parts "are placed together, this projecting portion of the edge of the shell 19 of the back is turned inwardly over the curved edge or side of the shell for the face. The construction improves the finish of the side of the brush and forms an additional feature of stength, tending to strengthen the brush and to secure the parts together more firmly.

In the modification shown in Fig. 3 the construction is the same as that already described for Fig.V 1, with the exception of the securing-nails 6. In this modification these nails `are replaced by clowels 7, which are located wholly within the shells and are inserted into the composition 4, preferably while said composition is in a plastic .condition. lThe upwardly-projecting ends of said dowels are adapted to enter sockets or holes provided for them in the wooden reinforce 5. These dowels 7 vmay be either formed of wood and glued into the holes or sockets formed for them in the reinforce 5 `or they may be of metal, in which case the back por-v tion of the -brush may be forced onto them, so as to embed the dowels in the wooden reinforce of the said back portion and thus secure the parts together.

In the modification shown in Fig. 4 the reinforces 4 and 5, of composition and wood, respectively, ,do not quite fill the face and back shells, but the edges of the shells project slightly beyond the said reinforces. An intermediate reinforce S, of wood orsimilar material, is .employed and is secured by dowels 9, which project from the upper and lower faces thereof into the

reinforces

4 and 5, respectively, when the parts of the brush are secured together. `The edges of the shells,

when the parts of the brush are thus secured together, overlap the edges of the intermediate reinforce, but do not abut, there being preferably a slight space between the said edges. The joint thus formed between the said shells is then finished by covering it with a strip or bead 10, preferably curved in sec` tion. This strip is preferably secured in place by means of nails ll, which may either pass through holes in the bead and between the edges of the back and face portions and enter the intermediate reinforce or may be soldered to or formed integral with the said bead and adapted to project inwardly between the edges of Ythe said shells and into the said intermediate reinforce, as shown in Fig. 4.

1. A brush comprising two metallic shells, one for the face and one for the back, the shell for the face being perforated and having bristles in the perforations, a mass of composition securing the bristles in place and reinforcing the shell for the face, Aa reinforce of wood or similar material for `the shell for the back, securing means engaging with the under side of the wooden reinforce and holding together the said reinforce and the composition at intermediate points in the width of the brush, substantially as set forth.

2. The brush comprising two metallic portions or shells, one for the face and one for the back, the shell for the face being perforated and having bristles in the perforations,

a mass .of composition securing the bristles in place and reinforcing the said face, a reinforce .of wood or similar material for the shell for the back, and securing vdevices passing through the face shell and 4composition and entering the Wooden reinforce, said devices serving to hold .the part-s rigidly together, substantially as set forth.

In testimony .whereof l affix my signature in presence of two witnesses.

` FRANK N. LOOK.

lVitnesses:

JOSEPH E. WINCHELL, S. W. WARREN.