Stenberg Dry Razor
Filed Monday, 28th March 1892
Published Tuesday, 17th January 1893
Inventor John Andrew Stenberg
Language EnglishCPC Classification:
Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers of the rotary-cutter type; Cutting heads therefor; Cutters therefor
Performing Operations; Transporting
Hand Cutting Tools; Cutting; Severing
Hand-Held Cutting Tools Not Otherwise Provided For
Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
Parts not referenced in the text: None
Parts not referenced in the images: None
To all whom it may concern:
Be it known that I, John A. Stenberg, a citizen of the United States, residing at La Vergne, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Razors, of which the following is a specification.
This invention is designed to provide a tool for removing the beard which may be used in place of and which obviates many of the inconvenient and objectionable features pertaining to the ordinary razor. It has been devised more especially for use at home rather than by the barber in the barbershop, but it may be used by the barber upon others with good effect and without the injurious and painful results usually attending too close or too frequent shaving.
My improved implement embodies a spirally toothed or ribbed rotating cylinder, which acts in conjunction with a stationary blade to cut the beard very much in the way a lawn mower severe the grass. It also embodies a suitable device for rotating the cylinder, preferably a gear meshing directly with the cutting teeth or ribs of the former and adapted to be actuated by the thumb or finger, and a suitable handle in which the cylinder and motor device are properly housed and supported. A comb-like guard is also placed over the exposed portion, of the cylinder at the cutting point so as to prevent the skin from being caught between the cutting devices.
All the features are fully illustrated in the drawings accompanying this application and forming part thereof,
In said drawings
The spirally toothed or ribbed cutting cylinder is shown at
For operating the cylinder any suitable motor device or connection may be used, but I prefer to employ a gear
The operation of the device is as follows:— The user inserts two of his fingers, preferably the third and fourth, in the eyes
My device is well adapted to use without any preliminary softening of the beard in the customary way, removes only the beard instead of cutting away a layer of the skin with the beard after the manner of the ordinary razor, does not irritate or injure the skin in any way, is not dangerous to handle, can be used with safety on shipboard or a railway car, and does not quickly or early become dull. It is also light, compact and inexpensive to manufacture.
While the spiral character of cutting teeth upon the cylinder is more desirable than straight teeth would be, my invention ought not to be limited to the spiral feature. And it is obvious that instead of making the teeth themselves spiral, they may be straight and the opposing stationary jaw or blade can be made spiral instead. Either the teeth or the blade are however preferably spiral because when thus constructed they are adapted to sever only a few of the whiskers at the same instant, whereas if both were straight they might act upon so many at once as to require more power than could be well supplied in an instrument of this character. The teeth are also preferably undercut upon their forward side as shown in
It will be noticed that the cutting cylinder is entirely inclosed in my razor except at the operating point, thus avoiding catching and winding up of the hair or whiskers growing upon adjacent parts of the face which are not shaved, and also avoiding any accidental interference with or retarding of the cylinder by extraneous means other than such as is expected to be met with at the cutting point; also that the cutting devices are located in a projecting part and preferably upon the end of the implement, and as near the extremity as may be, the cylinder being placed just inside the angle formed by the convergence of the sides of the triangular housing
1. The improved razor consisting of a handle, a rotary toothed cutting cylinder an inclosing support for said cylinder, an opposing stationary blade, a guard
2. The improved razor consisting of a handle, a rotary toothed cutting cylinder an inclosing support for said cylinder, an opposing stationary blade, and a gear adapted to be rotated by a thumb or finger pressing upon its periphery and acting to give motion to the cylinder, substantially as set forth.
3. The improved razor consisting of a handle, a rotary toothed cutting cylinder, an opposing stationary blade, and a gear adapted to be rotated by a thumb or finger pressing upon its periphery and meshing with the cylinder, substantially as set forth.
4. The combination in a razor, of a rotating toothed cutting cylinder, and a gear for actuating the same meshing directly with the cutting-teeth of the cylinder, substantially as set forth.
5. The razor having a rotary cutting cylinder, means adapted to be actuated by the thumb for rotating said cylinder, and a handle having eyes for the fingers, whereby the thumb is left at full liberty to actuate the cylinder, substantially as specified.
6. The combination in a razor of cutting devices of the kind described, a suitable housing for the same, and a handle adjustably secured to the housing, substantially as set forth.
7. The combination in a razor, of a handle having eyes to receive the fingers, a gear supported in the handle and adapted to be rotated by the thumb, and a rotary cutting cylinder receiving motion from said gear, substantially as specified.
8. The combination in a razor of the adjustable handle, the cheeks
9. The razor the cutting devices whereof consist of the inclosed rotary catting cylinder and an opposing stationary blade or edge, substantially as specified.
John A. Stenberg.
H. W. O. Munday,
Lew. E. Curtis.