Safety Razor with Curved Blade
Patent US842000
Invention Safety-Razor
Filed Saturday, 5th May 1906
Published Tuesday, 22nd January 1907
Inventor James T. McCann
Language English
CPC Classification:B26B21/18
- B26B21/18
Safety razors with one or more blades arranged transversely to the handle involving blades with two cutting edges - 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 - Y
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 - Y10
Technical Subjects Covered By Former Uspc - Y10S
Technical Subjects Covered By Former Uspc Cross-Reference Art Collections [Xracs] And Digests - Y10S76/00
Metal tools and implements, making - Y10S76/08
Razor blade manufacturing
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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, James T. McCann, a citizen of the United States of America, residing at Greensburg, in the county of Westmoreland and State of Pennsylvania, have invented certain new and useful Improvements in Safety-Razors, of which the following is a specification, reference being had therein to the accompanying drawings.
This invention relates to safety-razors; and its primary object is to provide a device of this character of simple and inexpensive construction in which the corners of the razor-blade as well as the cutting edges thereof are protected to prevent injury to the user.
A further object of the invention is to provide a safety-razor the parts of which may be readily assembled or taken apart.
The construction of the improvement will be fully described hereinafter in connection with the accompanying drawings, which form part of this specification, and its novel features will be set forth in the appended claims.
In the drawings,
The reference-numeral
The central portion
The end teeth
The handle
For the purpose of adjusting the edges of the blade with relation to the teeth of the shield I provide at either side of the shield an adjusting-screw
It will be apparent that the blade
Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is—
1. In safety-razors, a shield and a blade having the same transverse curvature to conform to each other, teeth formed on the longitudinal edges of said shield, a guard formed on each corner-tooth to receive the corners of said blade, the two corner-teeth of one longitudinal edge being extended beyond the remainder of the teeth of said edge, a roller journaled in said two projecting teeth, and end lugs carried by the shield to engage in notches provided therefor in the ends of the blade.
2. In safety-razors, a shield member and a blade member having the same transverse curvature to conform to each other, end lugs formed on one of said members to engage in notches provided therefor in the other of said members, teeth carried by the longitudinal edges of the shield member and having the two corner or end teeth of one edge projecting beyond the remainder of the teeth of said edge, and a roller journaled in said two projecting teeth.
3. In safety-razors, a shield member and a blade member transversely curved in the same manner to conform to each other, centrally-disposed end lugs carried by one member to engage in notches formed in the other member, teeth formed on the longitudinal edges of said shield member, the end teeth of one longitudinal edge being extended beyond the remainder of the teeth on the same edge, a roller journaled in said extended teeth, and guard-flanges carried by the end teeth of each edge to receive the corners of said blade member.
4. In safety-razors, a transversely-curved shield having teeth on both longitudinal side edges and having the end teeth on one longitudinal side edge projecting beyond the remainder of the teeth on the same edge, a roller journaled in said two projecting teeth, and a transversely-curved blade fitting on the shield the blade and shield having the same transverse curve, whereby the inner face of the blade contacts throughout its surface with the shield.
5. In safety-razors, a toothed shield longitudinally concaved centrally of its upper face and reversely curved at each side of the concave portion, a blade conforming in curvature to the shield and closely fitting on the upper face thereof, and means for securing the blade and shield together.
In testimony whereof I affix my signature in the presence of two witnesses.
James T. McCann.
Witnesses:
W. D. Morris,
Chas. A. McAndrews.