US1932110A - Safety razor - Google Patents

Description

Oct. 24, 1933. J U, KQREE 1,932,110

SAFETY RAZOR Filed Dec. 22. 1930 12 2/6 z'zfor Patented Oct. 24, 1933 PATENT OFFICE SAFETY RAZOR Jean U. Kore, New York, N. Y., assignor to Flexo Safety Razor Corporation Application December 22, 1930 Serial No. 503,921

2 Claims. (01. 30-12) This invention relates to razors and particularly to that class thereof shown in my 00- pending application Serial No. 502,020 filed December 13, 1930 and is in the nature of an improvement thereon.

It has for its object to produce a razor in which the blade will automatically find its seat on the head of the razor. I

Also it has for its object a blade and guard so fashioned that the blade will be laid equally and surely on the curved head of the razor.

Other objects and advantages of the present invention will be apparent from the following description, reference being had to the accompanying drawing wherein the preferred form of embodiment of the invention is clearly shown, and in which similar numerals of reference denote similar parts throughout the several views.

Figure 1 is a side elevation of the blade, guard and head with a portion of the handle connecting the same.

Fig. 2 is a section on only.

Fig. 3 a flat View of the ordinary razor blade.

Fig. 4 is a similar view of the improved blade.

The invention is constructed and operated substantially and preferably as follows:

1 is the blade, 2 the head, 3 the guard, 4; the handle, 5 the usual threaded portion or shank of the head, and 6 the threaded portion in the handle to receive the threaded portion of the head.

The head 2 a section of which is more particularly shown in Fig. 2, instead of having its lip, or apron, or bent over cam portion 15 made square to the base 16 as along the line 1'7, 17, is laid at a more obtuse angle thereto as along the line 18, 18. The hole 19 of the razor blade of necessity must be made somewhat larger than the shank or threaded portion 5 so as to slip easily thereover; but when clamped tight by the handle it has no sure back rest. But by giving room for the blade to pass easily over the shank, and then automatically pushing the blade against a back as at 20 when the handle is screwed on, both requirements are met.

The improved blade 1 is shown more particularly in Fig. 4 and has an oblong opening 21 cut therein curved inwardly toward the middle portion as at 22; also four small projections or locators 23 into which the shank 5 passes and is held thereby.

It has been found that if a thin blade as ordinarily constructed be clamped along a curve as shown in Fig. 1 it will bend unevenly along the 2-2 of Fig. 1 of the head backing 20 due to some parts of the blade being stiffer than others so that the back 31 of the blade when curved willnot fit along the back or portion 20 evenly. But by constructing the blade with the open portion 21 to approximately the shape shown this unevenness will be avoided. This will give the cutting edge of the blade a longer life, and the person using the blade more satisfaction while shaving.

The locators 23 prevent the shank 5 from slipping in any direction, and the same may be rounded off on the inside as shown at 33 the more easily to fit the shank.

As my invention is in some of its aspects generic, I do not limit myself to the particular 7 construction shown and described, but also contemplate the employment of such equivalents as fairly fall within the scope of the claims.

In this connection I may state that the sloping back or scarf 15 may be used on razors hav- 7 ing straight heads as well as curved heads as shown in Fig. 1. Instead of having the backing 20 mounted along the straight line 18-18, it may be mounted along the curved line 30-30 if desired.

Therefore it should be understood that I may make various changes in the form, proportion, size and detail of the several parts shown, as well as the number and position of certain elements used, without departing from the spirit of the invention.

I claim: a

1. In a safety razor, a flexible blade, a blade holder comprising a longitudinally curved head having a shank thereon and a flexible guardgo having a hole to receive the shank, cam members on one edge of the head for engaging one edge of the blade and of the guard and cooperating with the shank to align the blade and the guard, and means on the shank to hold the blade and the guard on the head and to bend them longitudinally.

2. In a safety razor, a flexible blade, a blade holder comprising a longitudinally curved head having a shank thereon and a flexible guard having a hole to receive the shank, a cam member at each end of the head at one edge for engaging one edge of the blade and of the guard and 00- operating with the shank to align the blade and V the guard, and a handle threaded on the shank and engaging the guard to hold the guard and the blade on the head to bend them longitudinally.

JEAN U. KOREE.

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