4 in 1 Single Edge Razor with Four Edged Blade
Filed Tuesday, 23rd March 1920
Published Tuesday, 22nd November 1921
Inventor William Dwyer
Owner Four-in-One Safety Razor Company
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
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, William Dwyer, a citizen of the United States, residing at Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented new and useful Improvements in Safety-Razors, of which the following is a specification.
This invention relates to safety razors, and more particularly to a razor specially adapted for use by travelers.
One of the main objects of the invention is to provide a razor of simple construction which may be quickly and easily assembled or disassembled. Another object is to provide a razor which will occupy a minimum of space when assembled and can be readily carried in a pocket of the user's vest. A further object is to provide a blade having a plurality of cutting edges and means for covering and protecting all but one of these edges, this means having a handle whereby the razor may be readily gripped for use. Further objects will appear from the detailed description.
In the drawings :—
Lower clamping member or plate
A square blade
The top of casing
As will be understood, changes in details of construction and arrangement of parts of the invention may be resorted to without departing from the field and scope of the same, and I intend to include all such variations, as fall within the scope of the appended claims, in this application in which a preferred form only of my invention is disclosed.
What I claim is:
1. In a safety razor, a polygonal clamping plate, a polygonal casing having a depending flange and open at one side, said plate being positioned within the flange of the casing, a polygonal blade positioned between the plate and the casing and fitting within the latter, said blade being sharpened on all of its edges and projecting beyond the casing at the open side thereof, and means for forcing the plate and the casing toward each other, said flange providing an element for gripping the casing between the fingers when using the razor, the flange also serving to protect the user's fingers from being cut by the blade and to protect the unexposed edges of the blade from injury.
2. In a safety razor, a polygonal clamping plate, a polygonal casing having a depending flange, said casing being open at one side, a polygonal blade positioned between the plate and the casing, said blade being sharpened on all of its edges, the plate and the blade fitting snugly within the casing and being held in centered relation to each other and to said casing by said depending flange, and means for forcing the casing and the plate toward each other.
3. In a safety razor, a flat clamping plate of rectangular shape, a substantially flat casing fitting over the plate and about three sides thereof, the casing being provided at one side with a guard element, a blade within the casing and projecting beyond the plate at the edge thereof adjacent to the guard element, a screw stud carried by the plate and projecting through the blade and the casing, a nut threaded on the stud above said casing, a handle having spaced arms pivoted to the top of the casing, said arms being disposed to straddle the nut when the handle is lowered, said handle being adapted to fit against and substantially within the outline of the top of the casing when lowered, and means for locking the handle raised.
In testimony whereof I affix my signature.