Razor with Square Blade
Invention Safety Razor
Filed Monday, 2nd May 1921
Published Tuesday, 27th April 1926
Inventor David H. Trevor
Language EnglishCPC Classification:
Safety razors with one or more blades arranged transversely to the handle involving blades with more than two cutting edges; involving disc blades
Performing Operations; Transporting
Hand Cutting Tools; Cutting; Severing
Hand-Held Cutting Tools Not Otherwise Provided For
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
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
Safety razors with one or more blades arranged transversely to the handle
General Tagging Of New Technological Developments; General Tagging Of Cross-Sectional Technologies Spanning Over Several Sections Of The Ipc; Technical Subjects Covered By Former Uspc Cross-Reference Art Collections [Xracs] And Digests
Technical Subjects Covered By Former Uspc
Technical Subjects Covered By Former Uspc Cross-Reference Art Collections [Xracs] And Digests
Metal tools and implements, making
Razor blade manufacturing
Parts not referenced in the text: None
Parts not referenced in the images: None
To all whom it may concern:
Be it known that David H. Trevor, citizen of the United States, and resident of Newark, county of Essex, and State of New Jersey, has invented certain new and useful Improvements in Safety Razors, of which the following is a specification.
My invention relates to safety razors and the object of my invention is to provide a razor that embodies four cutting edges formed on a single plate and means for identifying the respective cutting edges or blades.
A further object is to provide means to hold the blades in proper relation to the holder.
Referring to the drawings which form a part of this specification.
The top plate
The top plate is provided with pins
The razor plate
It will be observed that all the plates may be easily separated for cleaning and a new razor plate inserted when desired.
Having thus described my invention, I claim as new and desire to secure by Letters Patent :—
1. A safety razor comprising a handle, a blade member having a plurality of cutting edges, identifying numbers on the blade adjacent each edge thereof, a guard plate and a cap plate having an opening through which one of said numbers may be seen and means for clamping said blade member between said plates.
2. A safety razor comprising a handle, a blade having a plurality of cutting edges, identifying numbers on the blade adjacent each edge thereof, the blade having a hole adjacent each number, a guard plate having two openings therein and a cap plate having two projecting pins adapted to extend through the openings in the guard plate and two of the holes in the blade, said cap plate having an opening adapted to register with one of the numbers whereby the number may be seen.
Signed at the city of New York, in the county of New York and State of New York, this 30th day of April, 1921.
David H. Trevor.