US1123371A - Razor-blade. - Google Patents

Razor-blade. Download PDF

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Publication number
US1123371A
US1123371A US68685912A US1912686859A US1123371A US 1123371 A US1123371 A US 1123371A US 68685912 A US68685912 A US 68685912A US 1912686859 A US1912686859 A US 1912686859A US 1123371 A US1123371 A US 1123371A
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US
United States
Prior art keywords
blade
razor
blades
corrugations
rigidity
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US68685912A
Inventor
Alfred W Proctor
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gillette Co LLC
Original Assignee
Gillette Safety Razor Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gillette Safety Razor Co filed Critical Gillette Safety Razor Co
Priority to US68685912A priority Critical patent/US1123371A/en
Application granted granted Critical
Publication of US1123371A publication Critical patent/US1123371A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B26B21/54—Razor-blades
    • B26B21/56—Razor-blades characterised by the shape
    • 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

Definitions

  • This invention relates to razor blades of a type now widely used and made of thin sheet steel, as distinguished from forged blades.
  • the facility with which such blades can be manufactured because they do not require forging in order to bring them to shape and because many of the grinding processes incident to the production of a forged razor are unnecessary, has brought them into wide use.
  • Blades made from such thin sheet steel however, have aninherent flexibility which requires, or at least, makes it desirable to employ With them a holder which embodies a backing, this holder operating to support the blade and impart a certain degree of rigidity to the cutting edge.
  • Such holders are however expensive to make and are undesirable for various reasons.
  • the invention consists in an improved razor blade as hereinafter set forth.
  • Figure 1 is a front or face view of a razor blade embodying the principles of this invention
  • Fig. 2 is an end elevation
  • Fig. 3 is a perspective view of a form of holderwhich may be em ploved with a blade in position therein.
  • the blade is stamped or otherwise formed from comparatively thin sheet steel, that is to say. a steel which is so thin that the blades formed therefrom lack the necessary or desirable rigidity to eflicientlv stand up under the duty imposed upon them during the shaving operation.
  • the blade will be of uniform thinness.
  • the blade has corrugations impressed thereinto, the corrugations being arranged in such a way as to stiffen the blade transversely and iongitudinally.
  • These corrugations act as stiffening agents in the direction of their length and by'having the corrugations extend in different directions, the blade is well stiffened.
  • corrugations are illustrated arranged in a sort of double pointed arrow form which gives diagonal, transverse and longitudinal bracing.
  • the blade made of sheet metal is marked A, and B designates corrugations.
  • the form and arrangement of these corrugations may of course be varied. but as illustrated they include four V shaped ribs, two of which point in one direction and the other two of which point in the other direction. the two middle Vs being connected by a longitudinal rib or corrugation which may further have lateral branches.
  • These ribs are preferably formed while the sheet steel blade is being hardened and while it is at a temperature corresponding to a cherry red heat.
  • the steel is soft and workable at this temperature and readily takes'the contour of any dies. which will at the same time harden the material in the known or usual manner.
  • the steel is subsequently drawn or tempered as usual.
  • the blade may be used in a wire frame such as C which operates merely as a holder and does not impart a'nv appreciable degree of support to the blade.
  • a razor blade of very thin steel so thin and flexible as to have no inherent rigidity bv reason of the thickness of the metal.
  • said blade having a pluralitv of embossed ribs extending out at an angle on one side of a longitudinal center line mid wav between the edges of the blade, part of said ribs being at an angle to the other part as well as to the center line. and a similar series of ribs branched out along the other side of such center line, and a rib along such center line New York and State of New York, this 27th melc'lging lingo allllthebothfir ribs substantially day of March, A. D. 1912.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Description

A. W. PROCTOR.
RAZOR BLADE. I APPLICATION FILED MARZS, 1912 1,123,371. Patented Jan.5,1915.
@% M Wqfl unrrnn snares rarnn orricn.
ALFRED W. PROCTOR, OF BROOKLYN, NEW YORK, ASSIGNOR TO THE GILLETTE SAFETY RAZOR COMPANY, A CORPORATION OF MAINE.
RAZOR-BLADE.
Specification of Letters Patent.
Patented Jan. 5, 1915..
Application filed March 28. 1912. Serial No. 688.859.
T 0 all whom it may concern Be it known that I, ALFRED W. PRooToR, a citizen of the United States, and a resident of Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Razor Blades, of which the following is a specification.
This invention relates to razor blades of a type now widely used and made of thin sheet steel, as distinguished from forged blades. The facility with which such blades can be manufactured because they do not require forging in order to bring them to shape and because many of the grinding processes incident to the production of a forged razor are unnecessary, has brought them into wide use. Blades made from such thin sheet steel, however, have aninherent flexibility which requires, or at least, makes it desirable to employ With them a holder which embodies a backing, this holder operating to support the blade and impart a certain degree of rigidity to the cutting edge. Such holders are however expensive to make and are undesirable for various reasons.
It is the object of this invention to produce a thin sheet metal blade having sufficient inherent rigidity so that it may be self-supporting, thereby obviating the necessity of using with it a holder which is constructed to afford rigidity to the cutting ed e of the blade.
To this end the invention consists in an improved razor blade as hereinafter set forth.
In the drawings,Figure 1, is a front or face view of a razor blade embodying the principles of this invention; Fig. 2, is an end elevation, and Fig. 3, is a perspective view of a form of holderwhich may be em ploved with a blade in position therein.
In carrying the invention into effect the blade is stamped or otherwise formed from comparatively thin sheet steel, that is to say. a steel which is so thin that the blades formed therefrom lack the necessary or desirable rigidity to eflicientlv stand up under the duty imposed upon them during the shaving operation. In the best constructions. furthermore, embodying the invention the blade will be of uniform thinness. In
order to impart the necessary or desirable rigidity referred to the blades will be given a configuration which affords such rigidity so that the blades because of their configuration are stiffened.
In what is regarded as the best form for carrying the invention into effect, the blade has corrugations impressed thereinto, the corrugations being arranged in such a way as to stiffen the blade transversely and iongitudinally. These corrugations act as stiffening agents in the direction of their length and by'having the corrugations extend in different directions, the blade is well stiffened.
In the drawings the corrugations are illustrated arranged in a sort of double pointed arrow form which gives diagonal, transverse and longitudinal bracing. The blade made of sheet metal is marked A, and B designates corrugations. The form and arrangement of these corrugations may of course be varied. but as illustrated they include four V shaped ribs, two of which point in one direction and the other two of which point in the other direction. the two middle Vs being connected by a longitudinal rib or corrugation which may further have lateral branches. These ribs are preferably formed while the sheet steel blade is being hardened and while it is at a temperature corresponding to a cherry red heat. The steel is soft and workable at this temperature and readily takes'the contour of any dies. which will at the same time harden the material in the known or usual manner. The steel is subsequently drawn or tempered as usual.
The blade may be used in a wire frame such as C which operates merely as a holder and does not impart a'nv appreciable degree of support to the blade.
What is claimed is:-
A razor blade of very thin steel. so thin and flexible as to have no inherent rigidity bv reason of the thickness of the metal. said blade having a pluralitv of embossed ribs extending out at an angle on one side of a longitudinal center line mid wav between the edges of the blade, part of said ribs being at an angle to the other part as well as to the center line. and a similar series of ribs branched out along the other side of such center line, and a rib along such center line New York and State of New York, this 27th melc'lging lingo allllthebothfir ribs substantially day of March, A. D. 1912. as escri e w ere y t e blade is adapted to be supported at its ends and stiffened ALFRED PROCTOR' against bending along any axis lying in the Witnesses: plane thereof. GRACE T. DIXON,
Signed at New York, in the county of E. S. SINGER.
US68685912A 1912-03-28 1912-03-28 Razor-blade. Expired - Lifetime US1123371A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US68685912A US1123371A (en) 1912-03-28 1912-03-28 Razor-blade.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US68685912A US1123371A (en) 1912-03-28 1912-03-28 Razor-blade.

Publications (1)

Publication Number Publication Date
US1123371A true US1123371A (en) 1915-01-05

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US68685912A Expired - Lifetime US1123371A (en) 1912-03-28 1912-03-28 Razor-blade.

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE739561C (en) * 1941-04-27 1944-04-19 Wilhelm Mueller razor blade

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE739561C (en) * 1941-04-27 1944-04-19 Wilhelm Mueller razor blade

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