US1894832A - Comb - Google Patents

Description

Jan. 17, 1933. c RQB|N$QN 1,894,832

COMB

Filed Jan. 8, 1932 INVENTOR 0471.601115]. Qehim Patented Jan. 17, 1933 JOHN CARTER ROBINSON, F PITTSBURGH, PENNSYLVANIA- coma Application filed January 8, 1932. Serial No. 585,406.

This invention relates to improvements in combs, and particularly to combs which are employed for straightening hair which 1s curled and kinked and for curling hair as 5 well.

In the accompanying drawing Fig. I is a view in side elevation of the comb of my invention; and Fig. II is a view of the comb in end elevation, drawn to enlarged scale.

The comb, borne on a suitable stem 1 (which may be provided with a hand-grip of heat-insulating material), is conveniently formed as an integral casting (it may be machine-finished, of course) of such material as steel, brass, or aluminum. It consists of a heel portion 3 and teeth 4. The heel is made relatively heavy, of much greater diameter than is ordinarily true of such combs, and this heel in the use of the comb becomes a roller, the curvature of whose surface is of relatively large radius, and whose bulk is such as to carry relatively large quantities of heat, and to remain heated when in use during relatively long periods of time. The curvature of the surface of the heel of the comb is on every cross-section continuous: There are no abrupt angles; and even in the spaces between the teeth the surface of the heel of the comb is continuous and uninter- 0 rupted, as is indicated by dotted lines. The teeth are tapered to blunt points, as is usual; but, additionally (and this is a new feature), the line of teeth presents on opposite sides concave surfaces whose curvature may be understood to correspond approximately to the curvature of the head upon which the comb in use is applied. The surface of the heel and the lateral surfaces of the line of teeth are arranged to lie in continuous lines of reverse curvature, as is sufficiently indicated in Fig. II. At the base the teeth are cut away, to form on the two sides grease grooves 5.

Preferably the comb is on its two sides nonsymmetrical,a feature apparent on a glance 5 at Fig. II. The concave surface of the line of teeth on the left-hand side is of much greater extent than on the other side; and, correspondingly, the heel of the comb is displaced to the right with respect to a central longitudinal plane through the teeth. This is an .chinery and in other heat-imparting tools.

adaptation of the instrument to conditions of use. Whether in the hands of a barber or in the hands of one who is engaged upon the hair of his own head, the comb will be used preponderantly on one side, and the other side will be used only in a supplementary'and less important way. Accordinglythepressing surface 6 is extended upon one side, and the roller surface of the heel of the comb is correspondingly displaced to the opposite side of the mid plane. v

For most effective use the hair to be straightened is prepared by rubbing in grease or wax, and the comb is heated. The comb is repeatedly applied over successive areas of 5 the head; the comb is passed downward and the surface 6 pressed snug againstthe head, and in this movement of the comb the hair is drawn straight and held taut. Then, without appreciable relaxation of pressure, the hot heel of the comb is rolled upon and'downward along the so straightened body of hair. Excess Wax or oil finds escape in groove 5, while the effect of heat and pressure is to give permanent set to the straightened hair.

When a user applying the instrument to his own head has thus by employing the lefthand side (Fig. II) and the heel of the comb operated on the hair over the crown the right side and the back of his head, he may apply to the relatively small remaining area the right-hand side of the comb.

Since it is heat applied to hair when imder tension which gives to the hair permanent set, the same instrument, useful in the manner described to straighten hair, may be employed to curl hair. A look of hair taken up by the comb and by the turning of the comb wound upon and drawn taut upon it, may, the body of the comb having previously been heated, by heat and tension receive permanent set, so that when released the curl will remain.

The comb, and particularly the heel portion, may be, and ordinarily will be, a solid 95 casting; or it may be hollow and thin-walled, and adapted to receive a separate and heated corean arrangement which needs no illustration, since it is a familiar one in fluting ma my hand Again, it is manifest that electrically heated coils may be arranged within a comb of hollow body, and so the desired heat may be suplied and continued at will. This also is a ea-ture of familiar use in curling-tongs and other heat-imparting tools.

I claim as my invention:

1. A comb consisting of a heel and line of teeth, the two opposite sides of the line of teeth being concave from base to ti and of a curvature corresponding to that o a human head, and the heel being of convex curvature.

2. The comb of claim 1, the curved side of the line of teeth bein of greater extent on one side than on the 0 er.

3. A comb consisting of a roller-like heel and a line of teeth, the opposite sides of the line of teeth being concave from base to tip and the heel being of convex curvature, the extent of the concave surface of the line of teeth bein eater on one side than on the other, an t e heel portion being laterally displaced from the mid-plane through the line of teeth toward the side on which the extent of tooth surface is less.

4. The comb of claim 1, the teeth being provided at the base with a grease groove.

5. The comb of claim 1, the curvature of the side of the line of teeth and the curvature of the heel lying in a continuous surface of reversed curvature, interrupted on the line of reversal of curvature by a grease groove at the base of the line of teeth.

In testimony whereof I have hereunto set JOHN CARTER ROBINSON.

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