US1280972A

US1280972A - Hair-cutting device.

Info

Publication number: US1280972A
Application number: US21940918A
Authority: US
Inventors: William S Dignam
Original assignee: Individual
Current assignee: Individual
Priority date: 1918-02-27
Filing date: 1918-02-27
Publication date: 1918-10-08
Anticipated expiration: 1935-10-08

Description

W. S. DIGNAM.

HAIR CUTTING DEVICE. APPLICATION FILED FEB.27.19|8.

1 ,280, 972. Patented Oct. 8, 1918 [NY ENTER onncn.

WILLIAM S. DIGNAM, OF BARBIE, ONTARIO, CANADA.

HAIR-CUTTING DEVICE.

Specification of Letters Patent.

Patented Oct. s, 1918.

Application filed February 27, 1918. Serial No. 219,409.

To all whom it may concern:

Be it known that I, WILLIAM STANLEY DIGNAM, of the town of Barrie, in the county of Simcoe, Province of Ontario, Canada, have invented certain new and useful Imrovements in Hair-Cutting Devices, of which the following is a specification.

My object is to devise an implement which will enable an unskilled person to successfully cut his own or some one elses hair.

I attain my object by clamping to a comb some distance back from the points of the teeth a thin razor blade. The comb teeth are preferably inclined to the edge of the aforesaid blade, and the device is used with the cutting edge of the blade at the side of the comb nearest the head.

The device is constructed in detail substantially as hereinafter more specifically described and illustrated in the accompanying drawings in which- Figure 1 is an elevation of the device;

Fig. 2 a cross section on an enlarged scale; and

Fig. 3 a longitudinal section of the same on the same scale as Fig. 2. 2

In the drawings like numerals of reference indicate corresponding parts in the different figures.

1 is a comb, preferably provided with a handle 2. The teeth of the comb, it will be seen, are set at an angle to the back, preferably inclining from the back in the direction of the handle.

To one or both sides of the comb is ap-' plied a thin fiat razor blade 3, which is held in place by means of a suitable clamp with an exposed edge substantially parallel to the points of the teeth and set back a substantial distance from the points of said teeth.

While any suitable clamp may be employed, a preferred arrangement is shown in which a tubular spring 4 is adapted to embrace the back of the comb and to engage a pair of jaws 5 provided with finger grips 6 projecting through slots in the tubular spring. This type of clamp is quite commonly employed as a paper clip and is well known in the art.

To assist in holding the blades in position, each blade is preferably formed with a longitudinal slot and a wire loop 7 is provided of substantially the same length as the slots and is slipped over the teeth of the comb as shown. The blade which is at the side of the comb next the scalp is the blade which effects the cutting, the device being used by drawing the comb through the hair with the points of its teeth in contact with the scalp. The length to which the hair is cut depends on the inclination of the comb to the scalp.

The sides of the tubular spring 4 act as guards to prevent the comb lying so flat on the scalp as to cause the cutting of the hair too close to the head.

The inclination of the teeth causes the hair to be brought against the blade at an angle to effect a shearing cut which causes the device to cut smoothly and easily. As the blades are double edged, four cutting edges are provided, two of which are in position for use at any time so. that they are used alternately as the device is shifted from one hand to the other. The blades, being formed entirely separate from the device,

are easily renewed at any time.

Owing to the ease with which the length of the hair cut can be gaged by the method of holding the device, it is quite easy for an unskilled person to successfully cut either his own or some one elses hair.

What I claim as my invention is:

1. In a hair cutting device, the combination of a comb; a razor clamped against the side of the teeth of said comb; means positively securing the blade against lateral and upward sliding movement of said comb; and a clamping means securing said, blade against 'outwarl movement from said comb, said clamping means extending laterally from said comb to determine the angle of said comb to the surface of the scalp when the device is in use.

2. In a hair cutting device, the combination of a comb; a slotted razor blade adapted to lie against the side ofthe teeth of said comb; blade positioning means frictionally slidable over the teeth of said comb, to engage said slotted blade; and a spring guard to clamp said blade in engagement with said means.

3. In a hair cutting device, the combination of a comb; a razor blade adapted to lie against the teeth of the comb at one side and having a longitudinal slot formed therein; a wire loop of substantially the same length as the slot embracing certain teeth of the comb; and a tubular spring clamp embracing the back of the comb and clamping the blade against the teeth.

4. In a hair cutting device, the combination of a comb; a razor blade adapted to lie against the teeth of the comb at one side and having a longitudinal slot formed therein; a Wire loop of, substantially the same length 5 as the slot embracing certain teeth of the comb; and a spring clamp adapted to hold i said blade in place and formed to serve as a guard adjacent the back of the comb at the other side to hold the teeth at an angle to the 10 scalp. A 5. In a hair cutting device, the combination of a comb; a razor blade adapted to lie against the teeth of the comb at one side and having a longitudinal slot formed therein; blade positioning means engaging in the slot 15 and With the teeth of said comb to assist in holding the blade in position; and a spring clamp adapted to hold said blade in place and formed to serve as a guard adjacent the back of the comb at the other side to hold 20 the teeth at an angle to the scalp.

Signed at Toronto, Canada, this 15th day of February, 1918.. 7

WILLIAM S. DIGNAM.