Single Edge Razor for Double Edge Blades
Patent US1022623
Invention Safety-Razor
Filed Wednesday, 29th July 1908
Published Tuesday, 9th April 1912
Inventor Clifford E. Dunn
Language English
CPC Classification:For a full resolution version of the images click here
A PDF version of the original patent can be found here.
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, Clifford E. Dunn, a citizen of the United States, residing in the city of New York, borough of Brooklyn, county of Kings, and State of New York, have invented certain new and useful Improvements in Safety-Razors, of which the following is a full, clear, and exact specification.
My invention relates to improvements in safety razors and safety razor frames, the object being to provide a cheap, simple, and effective frame which can be easily constructed, and which will be simple in operation.
It is also the object of my invention to provide a frame wherein a double-edged blade can be used, each edge alternately, and wherein provision is made for protecting from injury the edge which is not being used.
Other objects of my invention will appear from the following description and accompanying drawings illustrating three forms thereof, wherein—
Like reference numerals indicate corresponding parts in the different figures of the drawings.
The blade
In the construction shown in
In the construction shown in
In the construction shown in
In these constructions, whether a single or double-edged blade is used the cutting edge is always forced forward into operative position with respect to the guard and the proper cutting condition of the razor is always insured.
In the forms illustrated in these drawings, the blade is formed of a thin, flexible piece of steel, and the blade-support and cap are slightly curved. With this formation the blade can be clamped very firmly in place and the tension of the parts will maintain them rigidly in operative position. It is obvious, however, that the blade may be of sufficient thickness to be incapable of flexure, and in this case the blade-support and cap may be formed flat.
It is obvious that many other modifications and changes may be made, in my invention without departing from the spirit thereof, and I do not mean to limit myself to the particular form described, but
What I claim and desire to secure by Letters Patent is:
1. A safety razor comprising a frame formed of a single piece of sheet metal, upon one end of which is formed a blade support and guard, blade-limiting stops adjacent to said guard, a handle formed from the middle of said piece of metal, a cap or backing formed from the other end of said piece of metal adapted to contact with the upper face of a blade on the support, and hooks formed on said cap adapted to engage the frame adjacent the guard to retain the backing in place.
2. A safety razor comprising a frame formed of a single piece of sheet metal, upon one end of which is formed a blade-support and guard, blade-limiting stops adjacent to said guard, a handle formed from the middle of said piece of metal, a spring tongue formed from said metal piece adapted to coöperate with a blade on the support and force the same against the stops, a cap or backing formed from the other end of said metal piece adapted to contact with the upper face of the blade, and hooks formed on said cap adapted to engage the frame adjacent the guard to retain the backing in place.
3. A safety razor comprising a frame formed of a single piece of sheet metal, upon one end of which is formed a blade-support and guard, blade limiting stops adjacent to said guard, a handle formed from the middle of said piece of metal, a blade, a cap or backing formed from the other end of said piece of metal adapted to contact with the upper face of the blade, and hooks formed on said cap adapted to engage the frame adjacent the guard to retain the backing in place.
4. A safety razor comprising a frame formed of a single piece of sheet metal, upon one end of which is formed a blade-support and guard, blade limiting stops adjacent to said guard, a handle formed from the middle, of said piece of metal, a blade, a spring tongue formed from said metal piece adapted to coöperate with the blade and force the same against the stops, a cap or backing formed from the other end of said metal piece adapted to contact with the upper face of the blade, and hooks, formed on said cap adapted to engage the frame adjacent the guard to retain the backing in place.
5. A safety razor frame formed from a single piece of sheet steel, comprising a blade-support, a guard, a handle, stops at the ends of said guard, a cap or backing adapted to contact with the upper face of the blade, spring hooks located at the outer ends of said backing and adapted to fit over the stops, the parts being so arranged that the blade is clamped firmly between the blade-support and backing, which latter supports and gives rigidity to its cutting edge, and a spring tongue adapted to coöperate with the blade to force it forward against the stops.
6. A safety razor frame formed from a single piece of sheet steel, comprising a blade-support, a guard, a handle, stops at the ends of said guard, a cap or backing adapted to contact with the upper face of the blade, spring hooks located at the outer ends of said backing and adapted to fit over the stops, a spring tongue adapted to coöperate with and force the blade forward against the lugs, registering apertures in the blade-support and cap within which the spring tongue is permitted to have a limited movement, the parts being so arranged that the blade is clamped firmly between the blade-support and backing, which latter supports and gives rigidity to its cutting edge.
In testimony whereof, I have hereunto set my hand in the presence of two subscribing witnesses.
Clifford E. Dunn.
Witnesses:
Charles A. Scheuber,
Adolph F. Diuse.