US1338507A - Hair-trimmer - Google Patents

Description

W. A. JAMES.

HAIR TRIMMER.

APPLICATION FILED APR. 18, 1919.

Patented Apr. 27, 1920.

WILLIAM A. JAMES, 0F PROFIDENCE, RHODE ISLAND.

HAIR-TRIMMER. I

Specification of Letters.Patent.

Patented Apr. '27, 1920.

Application filed April 18 1919. Serial No. 291,026.

To (ZZZ whom it may concern Be it known that I, WILLIAM A. JAMES, a citizen of the United States, residing at Providence, in the county of Providence,

and State of Rhode Island, have inventedv with its cutting edge so related to the comb.

teeth, as that by a suitable manipulation of the device, the blade is caused to trim the hair.

The invention is embodied in certain improvements in a hair trimmer of this character which I will now proceed to describe and claim.

Of the accompanying drawings forming a part of this specificatiom- Figure 1 is a top plan view of a hair trimmer embodying my invenion.

Fig. 2 is an edge View of the same.

Fig. 3 is an enlarged section on line 33 of Fig. 1.

Fig. 1 is a section on line 41- 1 of Fig. 2, looking toward the left.

Fig. 5 is a perspective view of a portion of the comb shown by the preceding figures.

Fig. 6 is a view similar to Fig. 2, illustrating the operation of the trimmer, a portion of the comb being shown in section.

The same reference characters indicate the same parts in all of the figures.

The blade-holder of my improved hair trimmer includes a substantially wedgeshaped comb comprising a base and body portion 12, and a plurality of teeth 13, integral with and projecting from the base portion, said base portion and teeth being preferably made from a material such as hard rubber. One of the oppositely inclined sides of the comb constitutes a blade seat, and the opposite side constitutes a runner, adapted to slide in contact with the head, as indicated by Fig. 3, where the dotted line w:v may represent a portion of the contour of a human head or scalp. The apex of the wedge-shaped comb is formed by the points of the teeth 13, these being in alinement with each other.

14 represents a bladewhich, as here shown, is a safety razor blade of the double edge type. It will be understood, however, that my invention is not limited to a blade of this type. The blade 14 rests on the blade seat, with its cutting edge 15 extending substantially parallel with the apex of the wedge-shaped comb, and perferably spaced from said apex, as shown by Figs. 1, 2 and 3. V i

I have provided means for releasably securing the blade to the comb, said means being preferably embodied in ajlever 17, formed as a plate adapted to cover the greater portion of the blade, and provided with cars 18 projecting over opposite ends of the base portion 12 of the comb, and pivotally connected therewith by screws 19, constiuting the fulcrum of the lever. The cars 18 are between the forward and rear ends of the lever, so that the latter has an outer arm projecting over the blade 14, and an inner arm projecting rearwardly from the base of the comb.

The clamping lever is preferably adjusted to cause its outer arm to either clamp or release the blade 14 by means of an eccentric 21 formed on a handle 22, which is adapted to rotate on a cylindrical shank 23 fixed to and projecting rearwardly from the base of the comb, as shown by Fig. 3. The inner arm of the lever 17 is arranged to bear on the perimeter of the eccentric 21. When said eccentric is turned to the position shown by Figs. 2, 3 and 4, it exerts outward pressure on the inner arm of the lever, and thus presses the outer arm of the lever against the blade 17, so that the blade is clamped between the lever and the blade seat. When the eccentric is turned from the position shown, the pressure of the lever on the blade is released and the blade is removable.

To prevent backward movement of the cutting edge 15 of the blade from its operative position, I provide the blade seat with a stop, which engages the blade to prevent such backward movement. Said stop is preferably a shoulder 24, arranged to abut against the inner edge of the blade, as shown by Fig. 3. If desired, a plurality of stops may be provided, as shown by Figs. 3 and 5, three stops being shown by Fig. 3, and two stops by Fig. 5. These stops permit the employment of blades of different widths, as will be readily seen.

The trimmer is adapted to be used as shown by Fig. 6, in which the curved line a, a indicates a portion of the surface of a human head, and the broken lines at the left of said line indicate hairs being trimmed. The inner side of the comb is formed to slide on the surface a, a, and to hold the blade 14 seated on the outer side of the comb in a position inclined relatively to said surface. The elongated teeth 18 extend inwardly from the cutting edge 15 far enough to permit the hairs to project between the teeth into the path of the cutting edge, so that the outer ends of the hairs are severed, the trimmer being moved in the direction indicated by the arrow. The handle 22 is arranged to permit the comb to slide operatively on the surface a, a, the handle being preferably substantially in alinement with the comb teeth, so that the handle is inclined outward from the surface of the head, as shown,

when the trimmer is in use.

.I claim: 7 v r V 1. A hair-trimmer comprising a comb having elongated teeth and a shank fixed to and projecting rearwardly from the back of the comb, a blade bearing on said seat with its cutting edge spaced backwardly from the points of the teeth, a two-armed lever fulcrumed on the comb, the outer arm of said lever projecting over the blade seat, and adjustable means carried by said shank and cooperating with the inner arm of said lever to push the outer arm against the blade and clamp the blade against said seat.

2. A hair-trimmer comprising a substantially wedge-shaped comb, one of the oppositely inclined sides of which constitutes a blade seat, and the opposite side a runner, the apex of the wedge being formed by the points of the comb teeth, a cylindrical shank fixed to and projecting from the base of the comb, a handle rotatable on-said shank and provided with an eccentric, a two-armed clamping lever fulcrumed on the comb base, the outer arm of the lever projecting over the blade seat, and the inner arm contacting with said eccentric, and a blade clamped against the said seat by said outer arm.

In testimony whereof I have afiixed my signature.

WILLIAM A. JAMES.

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