Circular Blade Razor
Patent US1035308
Invention Safety-Razor
Filed Wednesday, 10th May 1911
Published Tuesday, 13th August 1912
Inventor Royal L. Boulter
Language English
CPC Classification:B26B21/20
- B26B21/20
Safety razors with one or more blades arranged transversely to the handle involving blades with more than two cutting edges; involving disc blades - B
Performing Operations; Transporting - B26
Hand Cutting Tools; Cutting; Severing - B26B
Hand-Held Cutting Tools Not Otherwise Provided For - B26B21/00
Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor - B26B21/08
Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor involving changeable blades - B26B21/14
Safety razors with one or more blades arranged transversely to the handle
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, Royal L. Boulter, a citizen of the United States, residing at Los Angeles, county of Los Angeles, and State of California, have invented certain new and useful Improvements in Safety-Razors, of which the following is a specification.
This invention relates to safety razors.
My object is the provision of a safety razor of few parts, simple, neat, light, strong and durable construction, wherein provision will be made for securing a blade in a novel manner without requiring the provision of a screw-operated device and which will permit the rapid and easy placing of the blade in position and clamping thereof by a slight pressure and turn of the stem and quick detachment on giving the stem a twist.
A further object is to provide a safety razor having a concavo-convex or dished, circular blade adapted to be clamped or held so that its cutting edge may be presented to the face at different angles, thereby enabling the user to obtain a close or an easy shave and permitting the razor to be passed into the hollow places of the cheek, chin and neck and insuring a perfect shave without distortion of the face or drawing the skin tight with the fingers, besides affording a slanting cutting contact with the beard and obviating the zigzag stroke necessary with the old style razor.
The details of the preferred embodiment of the invention are set forth fully hereinafter and the novel features are recited in the appended claims, but it is to be understood that the disclosures in the drawings and specification are illustrative, rather than restrictive, of the scope of the invention which is susceptible of various modifications.
In the accompanying drawings:—
The head
The blade
The stem
Surrounding the connecting rod
Assuming that the parts are separated, as shown in
In making my razor ready for use, it is only necessary to slip the blade on the hub
Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is:—
1. In a safety razor, the combination with a stem and a convexed head attached thereto, of a completely circular permanently dished razor blade, a circular dished clamping plate, said head and plate conforming to and adapted for holding the blade between them with its entire circular edge exposed for use, and means for interlocking the stem and the clamping plate.
2. In a safety razor, the combination with a stem and a convexed head attached thereto, of a completely circular permanently dished razor blade, a circular dished clamping plate, said head and plate conforming to and adapted for holding the blade between them with its entire circular edge exposed for use, the stem and clamping plate having parts adapted to telescope with each other, and a locking device for locking the stem to the clamping plate.
3. In a safety razor, the combination with a stem and a convexed head attached thereto, of a completely circular permanently dished razor blade, a circular dished clamping plate, said head and plate conforming to and adapted for holding the blade between them with its entire circular edge exposed for use, means for locking the head and clamping plate together, and a circular guard adjustably carried by the head so that it may be moved toward and away from the blade.
In testimony whereof, I hereunto affix my signature in presence of two witnesses.
Royal L. Boulter.
Witnesses:
F. G. Hentig,
A. L. Jeffery.