US2252628A - Hair trimmer - Google Patents

Description

Aug. 12, 1941. J. GRACHAN 2,252,628 HAIR TRIMMERv A F'il`ed April l0, 1939 Patented Aug. 12, 1.941

um 'rmMMEn Joseph Grachan, Johnstown, Pa., assignor o! one-half to Walter Good, Johnstown, Pa.

Application April 10, 1939, Serial No.`26"!,101

4 Claims.

My invention consists of a hair trimmer for self use. I am, of' course, aware that many attempts have been made to perfect a practical trimmer of this kind, but without success. After much experiment, I have found that it is necessary to maintain a variable relationship between the hair feeder and hair cutter to conform to miscellaneous operating conditions including differences in hair lengths, hair textures, maintain a predetermined cutting depth, etc. With the device of my invention the desired relationship between the hair feeder and cutter may be obtained by a simple manual operation, completely within the controlof the user, permitting accurate and positive cutting without sole dependence on the skill of the operator.

It is also an object of this invention to provide a simple and inexpensive trimmer which may be manufactured at a low cost, the trimmer including a standard type razor or other blade which may be readily removed, at the option of the user, for sterilizing, sharpening, etc:

Other objects of the invention will be manifest from the following description of the present preferred form of the invention, taken in connection with the accompanying drawing, wherein:

Fig. l is a side elevational view of a trimmer constructed in accordance with my invention, a portion of one of the trimmer guides being broken away to disclose details, the cutter'being shown fragmentarily,

Fig. 2 is an end elevational view of the trimmer made in accordance withthis invention, and

l'l'ig. 3 is a transverse vertical sectional view taken on the line 3-3 of Fig. 1.

In the drawing in order to illustrate the application of this invention, a portion of a conventional type of razor 4 is shown, the razor being provided on one edge with the usual reinforcing lange 5. It is, of course, understood that other forms of cutters may be employed, the razor being illustrated herein to show one form of invention.

The trimmer includes, essentially, a hair feeder 6, which comprises a body of any suitable contour and made of any suitable material, one edge thereof being provided with teeth l. The body of the feeder .6 is provided with a longitudinally extending opening 8 which communicates with slots 9, the latter being formed adjacent the opposite terminals of the feeder body.

For the purpose `of holding the cutter Il in contiguity with the feeder Ii, I employ suitable means fio I0 which in the present instance is shown to consist of a pair ofsubstantially U-shaped yieldable guides slidably arranged over the body of the feeder 6. One leg of each guide is extended to provide a presser finger II. These fingers engage the outer face of the cutter 4, as illustrated K mately its jointure, with the leg of the guide,

with a set screw I2. Under influence of the yieldable guides I0, the hair feeder and cutter are held in engagement, but their relative positions may be varied so as to change the position of the cutting edge of the razor with respect to the free terminals of the teeth 1.

In order to provide suitable means for sliding the razor on the hair feeder and for holding said razor in a predetermined position, I employ an operating shaft or rod I3 which is mounted in the opening B and extends through the latter, the terminals of the rod projecting beyond the ends of the body of the hair feeder. One of said extended ends is provided with a knurled knob I4 by which the rod or shaft may be rotated. The rod or shaft is equipped with suitable means such as toothed wheels I5 which co-act with the guides I0 to relatively move the latter on the feeder 5. This movement correspondingly of course moves the cutter on the hair feeder. In the form of invention illustrated in the drawing, each toothed wheel I5 engages complemental teeth or ribs I6 formed on the guides I0. Ihe wheels I5 are arranged in the slots and are keyed to the shaft or rod I3 to rotate simultaneously with the latter.

' It is manifest that in use of this invention the relative position of the cutter and the hair feeder may be varied by rotating the shaft I3 through the instrumentality of the knob I4. In addition the cutter is held in a fixed position on the feeder by the meshing engagement of the rollers l5, with the teeth I5. This is effected with facility and positiveness in the present invention by reason of the yieldable character of the guides I0, the teeth or ribs of which latter normally ex inwardly in the direction of the toothed rollers I5. Consequently, there is no danger of 'casual displacement of the cutter on the hair feeder, yet thecutter may be quickly and easily moved by the simple manual operation referred to above. While I have herein shown and described a preferred form of my invention, it is, of course,

to be understood that various changes may be made in the details of description, proportion and arrangement of parts within the scope oi' the claims hereto appended.

Whatis claimed is:

1. A hair trimmer comprising a toothed body, a cutter slidabiy mounted on said body, means for holding said body and cutter in contiguity, and

an operating member extending through the adjustably mounted on the comb, means to hold 20 the comb and cutter together, and operating means extending through the comb and engaged with the first said means for relative adjustment of the comb and cutter, the operating means engaging the iirst means, near each end of the comb, to eiect uniform adjustment throughout the length of the comb. I

4. A hair trimmer comprising a toothed body movable through the hair, a cutter slidably mounted on said body, and yieldable means embracing said body and cutter to normally hold the body and cutter in engagement, said means being movable for relative adjustment of said body and cutter, with the addition of operating means carried by the toothed body and co-acting with said yieldabie means to effect movement of the latter for correspondingly effecting said re1- ative adjustment of the cutter and body.

JOSEPH GRACHAN.

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