US1559536A - Safety razor - Google Patents

Description

Nov. 3 1925. 1,559,536

W. H. ALDEN, JR

SAFETY RAZOR Filed Dec. 22, 1921 Patented Nov. 3, 1925.

UNITED STATES WILLIAM H. ALDEN, JR., OF'BRYN ATHY'N, PENNSYLVANIA.

SAFETY nnzon.

Application filed December 22, 1921. Serial No. 524,240.

To all whom it may concern:

Be it known that I, VILLIAM H. ALDEN,

J r., a citizen of the United States, residing at Bryn Athyn, in the county of Montgomery and State of Pennsylvanla, have invented certain new and useful. Improve-Q1 ]ect1on of a double edged safety razor em ments in Safety Razors, of which the following is a specification.

This invention relates to safety razors and is'particularly applicable to those of the double edged type.

The principal object of the invention is to provide a safety razor which is sharpened with a rake toward an end in combination with means enabling the operator to maintain a substantially constant relation between the direction of the rake and the beard on both sides of the face. Other objects of the invention are the provision of a double edged razor having both edges sharpened with a rake toward the same end, the provision of a razor having a double edged blade sharpened on both sides with arake toward the same end and provided with a holder adapted to receive the blade in a'fixed relation and the provision of a.

razor of. the character specified in which the holder is identified so that a given edge of the blade can always be applied to the same side of the face.

Before proceeding to describe my improved razor in connection with the accompanying drawing,'a brief statement with respect to the generally adopted practice in sharpening safet razor blades will be given. It shoul 'be understood that the edge of a safety razor blade when examined under a microscope presents an appearance much resembling a saw and as ordinarily sharpened the serrations project outwardly from the base or body of the blade in a direction which is substantially perpendicular.

to the longitudinal axis of the blade. In other words, the length of one side of a serration or tooth is substantially equal to the length of the other side. Normally, therefore, there is no rake of the cutting edge either to one end or to the other.

I propose to sharpen the edge sothat it has a decided rake toward anend and then to' draw the blade across the face in the direction of this rake because the cuttin value of a blade so shar ened and so move is very much greater t an that of a blade sharpened in'the normal and usual way.

My invention can be very conveniently embodied in the double-edged type of razor and I have illustrated it herein as so embodied and in connection witha safety razor as distinguished from the ordinary straight razor. p

In the drawing, Fig. 1 is an isometric probodying .my invention; Fig. 2 is a similar isometric projection of a blade occupying the same relative position with respect to the holder as is found in Fig.1 with portions of each edge thereof broken away and illustrated in magnified form substantially. as it would appear under a magnifying glass in order to illustrate the characterof the cutting edge; Fig. 3 is a plan View of a blade with portions of the edges magnified as in Fig. 2 and having arrows which-indicate the direction of the stroke for each side of the blade; Figs. l and 5 are respectively right and left side views of a mans face illustrating the manner in which the razor is to .be applied to each side and the direction in which the stroke is to be taken; and Fig. 6 is a diagrammatic figure illustrating a manner in which the edges of a double edged blade could be sharpened on a hone in order to roduce the rake desired.

eferring first to Figs. 2 and 3, it will be seen that I have shown aportion of each edge 1 and 2 of the blade 3 as it would ap-, pear enlarged under a microscope or mag-. nifying' glass.

These portions I have marked 4 and 5. The edges 4 and 5 have been sharpened so as to have a decided rake toward'the end 6 of the blade. -Theblade is provided with a circular hole at the center 7 and a triangular hole 8 at one side, the triangular hole in this instance being toward the end 6 or in a direction from the central round hole which corresponds to the direction of th rake. Attention is called to this fact not because it is of importance in same relation to the holder would equally well answer the purpose.

The holder illustrated is what has become so well known in the art as the Gillette type in the blade. It will be seen, therefore,

ber 11. The cap orvcover member 11 is provided with a circular projection 12 adapted to extend through the opening 7 in the blade and with a triangular projection 13 adapted to extend through the triangular opening 8 that it is impossible to place the blade in the holder in any except one given or fixed position. If the blade were reversed'or inverted the triangular projection 13 would not fit into the triangular hole 8. 1

The cutting effect of a blade sharpened-as.

herein specified is much greater if the bl'ade be'drawn substantially in the direction of the rake of the sharpened edge as indicated by the arrows in Fig. 3 as well as in Figs. 4

and 5 and somewhat diagrammatically in Fig. 1. It will be seen, therefore, that to 'get ,an equally effective cut on both sides of the faceit will be necessary to use one side of the blade on one side of the face and the other side always on the other sideof the face. To this end I have marked the end plate member 11 with the le ends Left and Right as indicated in and all that it is necessary for the operator toremember is to place the left side of the razor always against the left side of the face and the right side-of the razor always against the right side of the face. The .average person when shaving I normally draws the razor across the face in the rections indicated by the arrows in Figs. 4 and- 5 and I have shown my invention as adapted 'to this normal and usual stroke. Other strokes can-be used but in order to make them all equally effective they should be in the directions'indicated by the arrows onjthevplate member 11. For instance in.

drawing the razor substantially upwardly across the face as'is SOmetimeS done in shaving, the angle of the stroke would have to be substantially opposite to what it was when drawing the razor substantially downwardl across the face.

- In ig. 6-1 have indicated very diagrammatically a method of sharpening which inincense locking means between the blade and the holder insuring mounting of the blade upon the holder with the rake always in the same direction, and means to indicate to the user the direction in which said rake extends.

2.. In a safety razor of the hoe type the combination of a holder and a double-edged blade, the blade having both edges sharpened with a rake toward the same end, and interlocking means between the blade and the holder insuring mountingof' the blade upon the holder with the rake always in the same direction, means to indicate to the user the direction in which said rake extends, and

identification means on the holder for the right and for the left sides of the face so that proper presentation of the rake may be insured.

3. The combination of a double, hoe-type safety razor holder; a double-edged blade therefor, having both edges sharpened with a rake toward the same end; interengaging means between the blade and the holder insuring mounting of the blade upon the holder with the rife always in the same direction, and iden 'fication means indicating to the user the proper manner in which'the razor should be applied to the face for obtaining the best results from .the rake.

4. As a new article of manufacture, a double-edged safety razor blade for an identified right and left sided hoetype holder,

having both edges sharpened with a rake toward the same end and provided with holder interlocking means insuring mountjug of the blade upon the holder with ra e always in the same direction.

In testimony signed my name.

WM. 1r, ALDEN, JR.

the

whereof, I have hereunto

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