Swing-To-Open Single Edge Razor
FiledFriday, 31st August 1906
PublishedTuesday, 23rd July 1907
InventorFrederick H. Hoffmann
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, Frederick H. Hoffmann, a citizen of the United States, residing in Hoboken, in the county of Hudson and State of New Jersey, have invented certain new and useful Improvements in Safety-Razors, of which the following is a specification.
This invention relates to an improved safety-razor in which a thin blade sharpened at one edge is supported in a suitable holder and locked in position so that the required rigidity necessary for shaving is obtained, while the holder can be very readily released for removing the blade whenever required for cleaning or replacing the same; and for this purpose the invention consists of a safety-razor which comprises a blade, a holder for said blade composed of a guard-plate having guard-teeth at its front edge, a hinged covering-plate for said blade provided with downwardly-extending lugs having hook-shaped ends, and a handle-frame to which the holder is pivoted, said holder being provided with pins for interlocking with the hook-shaped ends of the covering-plate.
The invention consists further of the guard-plate of the holder which is provided with a flat spring, riveted to the guard plate, the ends of said spring being pivoted to the supporting handle-frame so as to impart the necessary spring action to the holder for permitting the locking or releasing of the same from the handle-frame.
The invention consists further in other novel features of construction and combinations of parts which will be fully described hereinafter and finally pointed out in the claims.
In the accompanying drawings,
Similar letters of reference indicate corresponding parts in the several figures.
Referring to the drawings,
When it is desired to remove the blade for cleaning or inserting a new blade, the holder is pressed in downward direction on the pivots of the spring
The advantages of my improved safety-razor are, first, that the blade can be readily removed from the holder and replaced in the same; second, that the construction of the parts is extremely simple, so that the safety-razor can be furnished at a low price; and, third, that the blade is rigidly held in position for shaving so as to comply with the requirements of the safety-razor.
Having thus described my invention, I claim as new and desire to secure by Letters Patent:
1. A safety-razor comprising a frame, a guard-plate, a flat spring by which said guard-plate is pivotally attached to said frame, a blade, and a covering-plate secured to said frame and acted upon by said spring to clamp said blade against said guard-plate.
2. The combination, with a frame, of a guard-plate, a spring connecting said plate to said frame, a covering-plate to coöperate with said guard-plate in positioning a blade, and fastening devices on said covering-plate and frame which are maintained in engagement by said spring.
3. A safety-razor comprising a frame, a guard-plate, a flat spring by which said guard-plate is pivotally attached to said frame, a blade, a covering-plate hinged to said guard-plate, and fastening devices on said covering-plate and frame which are maintained in engagement by said spring.
4. The combination, with a frame having upright end-portions, of a guard-plate, a flat spring carried by said guard-plate and connected at its ends to said end-portions of the frame, a covering-plate hinged to said guard-plate, and coöperating fastening devices on said frame and said covering-plate which are maintained in engagement by said spring.
5. The combination, with a frame having upright end-portions, of a guard-plate, a flat spring applied to the under-surface of said guard-plate and entering at its ends into openings in said end-portions of the frame, a covering-plate hinged to said guard-plate and provided with downwardly-extending ends, and means for detachably securing said ends to the end-portions of said frame in opposition to the action of said spring.
6. The combination, with a frame, of a guard-plate, a spring connecting said frame and guard-plate, a covering-plate hinged to said guard-plate, and interengaging fastening devices of said frame and said covering-plate, said devices being maintained in engagement, and said covering-plate clamped against the blade, by said spring.
7. A safety-razor comprising a blade, a holder for supporting the same, said holder being provided with downwardly-bent lugs having hook-shaped ends, a transverse spring attached to the holder and provided with pivots at its ends, and a
8. A safety-razor comprising a blade, a holder for supporting the blade, said holder consisting of a guard-plate having upwardly-bent lugs and guard-teeth between said lugs, a covering-plate, provided with downwardly-bent lugs having hook-shaped lower ends, a flat spring attached to the under-side of the guard-plate and formed with pivots at its ends, a frame to which the end-pivots of the spring are pivoted, and headed pins at the ends of the frame for engaging the hook-shaped ends of the covering-plate.
9. A safety-razor comprising a
In testimony, that I claim the foregoing as my invention, I have signed my name in presence of two subscribing witnesses.
Frederick H. Hoffmann.
Henry J. Suhrbier.