US22381A

US22381A - Brush

Info

Publication number: US22381A
Authority: US
Publication date: 1858-12-21
Anticipated expiration: 1875-12-21

Description

UNITED STATES PATENT OFFICE.

REUBEN SHALER, OF MADISON, CONNECTICUT.

BRUSH.

Specification of Letters Patent No. 22,381, dated December 21, 1858.

To all 'whom it 'may concern:

Be it known that I, REUBEN SHALER, of Madison, in the county of New Haven and State of Connecticut, have invented certain Improvements in Brushes, the construction and operation of which I have described in the following specification and illustrated in its accompanying drawings with sufficient clearness to enable competent and skilful workmen in the arts to which it pertains or is most nearly allied to make and use my invention.

My said invention consists in, first, the motie hereinafter described of constructing the brush by drawing the bristles of which it is composed into a spiral groove around a cylindrical or polygonal handle and secur ing them in place by means of a wire or its equivalent by which the cost of the brush is very much reduced and a better brush is made from cheaper stock; second, in the mode hereinafter described of cementing the bristles in place by which they are prevented from being drawn out, and the tension which it would otherwise be necessary to give the wire which holds them in place is Very much reduced.

My invention is represented in the drawings which accompany this specification as follows t* Figure l is a longitudinal section of the brush in a state of completion. Fig. 2 is a like view of the handle showing the spiral groove filled with cement, preparatory to the introduction of the bristles. Fig. 3 is a side view of the handle alone. Fig. 4t is an end view of the brush.

A is the handle which is made by first turning a piece of wood in a lathe the proper form and size required to make the brush intended. It may be cylindrical, conical, or curved to suit any convenience though it is supposed that the cylindrical form will be chiefly used. After this handle is turned it has a spiral groove a cut in it as shown in the drawings. After this is done I fill said groove with cement as shown at Z) in Fig. 9, this cement being made of 7 parts by weight of common resin combined with one part of drying oil, or in about those proportions, though its composition may be slightly varied to suit the weather or other circumstances of the case. After this is done, the

l wire B is attached at one end of the handle A, and the bristles C being laid into place winding the wire around the cylinder in said groove, the bristles being laid on as the work progresses, and the wire being drawn down so tightly as to force the bristles down into and through the cementnearly or quite to the bottom of the groove, the plastic nature of the cement at the time it is applied being such as to allow this to be done. The composition of said cement is such that it will dry in a short time and hold the bristles firmly in their place. The peculiar adhesiveness of this composition, its slowness of drying, and its difiiculty of solubility when dry lits it peculiarly for this purpose. After the bristles are all laid on, the end of the wire is permanently secured when the brush is complete and as soon as the cement has dried is ready for use. Brushes may be made in this way at a very triiiing cost, and are very convenient, firm, and durable.

The handle may be polygonal instead of cylindrical, or a cord may be used in place of the wire B, but the construction I have described I deem best.

Having thus fully described my said invention, I deem it proper to say that I am aware that brushes have been made inwhich the bristles have been attached to a cylinder in tufts spirally arranged in rows around it. I make no claim to such a form of arranging the bristles. I am also aware that bristles have been secured in position after they have been attached to the handle by pouring rosin upon their ends, or by filling the end of the brush with glue. I do not claim these modes of cementing in the bristles.

The particular device which constitutes my said invention, and which I claim as hav ing been originally and first invented by me as a new article of manufacture, is-

A brush, the bristles of which are secured b v winding them into a spiral groove and Vitnesses:

JAS. F. GRIDLEY, THos. P. How.

fastening them in the manner described; or

over the groove a are drawn into place by