US1825767A - Safety razor blade - Google Patents

Description

M. ANDERSON SAFETY RAZOR BLADE Filed Jan. 18, 1928 Oct. 6, 1931.

Patented Get. 6,- 1931 UNITED STATES PATENT' OFFICE SAFETY RAZOR BLADE Application filed January 18, 1928. Serial No. 247,670.

This invention is a blade and a cooperating holder, for use in well known types of safety razors, such as the Gem and Eveready type, as shown in Patent No.

6' 1,018,783 dated 1912, to Scheuber.

This invention is related to' the invention covered by my ap lication, Ser. No. 214,167, filed Aug. 19, 192 and my application Ser. No. 247,669 filed on even date herewith.

The safety razor blade of this invention is of a general rectangular shape, having two sharpened edges; the blade is adapted'to fit into a U- haped holder having fiat gripping jaws. The blade and its holder are provided with sockets and projections which snap into cooperative engagement, for holding the blade in position in its holder.

I One of the important features of the invention is that the blade is reversible, so that after one edge has become dulled, a fresh sharp edge maybe had by reversing the blade with respect to the holder, thereby doubling the useful life of the blade.

The blade is also provided with shoulders or lugs bent out laterally from the metal 0 the blade, which are adapted to rest on the top edge or edges of the holder, for limiting the inward movement of the blade with respect to the holder, so as to leave a clearance between that edge of the blade within the 11316.81, and the holder thus protecting such e ge.

Referring now to the drawings illustrating the invention in greater detail, 0

Fig. 1 is a perspective view ofthe blade in its holder;

Fig. 2 is a section Fig. 1; Fig. 3 is a view of the holder;

Fig. 4 shows a modified type of blade in its holder;

Fig. 5 is a section on the line 5-5 of Fig. 4; Y

Fig. 6 represents another modification;

Fig. 7 shows the blade in a Gem holder, and Fig. 8 is also a view of a modified form blade and holder. The blade 2 is of general rectangular shape and is provided with two sharpened edges 4 on the line 2 2 of and 6 and with holes, sockets or notches 8 and 10, one near each corner of the blade. The center of the blade is cut away as indicated at 12 and the edges of this opening are bent out laterally to form shoulders 14 and 16.

The holder, shown in Fig. 3 is U-shaped in 'cross section and comprises flat gripping spring jaws 18 connected by the resilient bight portion 20 and provided with inwardly to struck lugs or projections 22. When the blade is in position in its holder, lu s 22 snap into the sockets 8 or 10, while the s oulder 16 rests on the upper edge of the holder, preventing further inward movement and providing a clearance 24 for the sharp edge of the blade that is in the holder so that itwill not be dulled by contact with the holder.

The blade shown in Fig. 4 has sockets 8 and 10 as before and it is positioned in the U-shaped holder by lugs 22 snapping into the sockets. In this form the shoulders 14 and 16 are omitted.

Referring to Fig. 6, the blade is provided f with shoulders or lugs 26, which have the same function as the shoulders shown in Fig. 1, these shoulders 26 being small tabs or lugs struck out from the metal of the blade and bent laterally.

The spring jaws of the holder shown in Fig. 6 exert a sufiicient gripping force on the blade so that the cooperating lugs and projections shown in Figs. 1 and 4 need not be used. The spring metal of the holder exerts the requisite pinching effect on the blade. 8 When in use, the pressure tends to force the blade further into the holder; such inward movement is limited by the lugs 26. One end of the holder may have lugs 28 bent inwardly for aiding the proper longitudinal positioning of the blade with respect to the holder.

The holder may be roughened on the outside, as shown in Fig. 3, for aiding in the separation of the blade and holder when it is desired to reverse the blade, on to put in a fresh blade. The exposed sockets 8 and 10 or the exposed shoulders 14, 16 or 26, all furnish gripping points useful in pulling the blade out of its holder. 7 l O The blade may be made of rustless steel and may also be greased or oiled for protecting against moisture. It is important that the sharp edge within the holder should not rust.

As shown in Fig. 7, any of the described 5 forms may be used in a razor blade holder of known type, such as the Gem. The holder has the usual pivoted spring cover 80, which closes over the blade and holds it in place.

A further modification is shown in Fig. 8,

where the blade is provided with elongated slots 32, and the U-shaped holder is provided with elongated lugs 34, which may be cut or bent from the metal of the holder. The lugs snap into the slots and lock the blade in place.

The blade here is perfectly fiat, an advantage in packaging the blades.

Qne of the described holders may be furnished with each package of blades, and a fresh blade inserted in the holder after both edges of the old blade are dull.

lVhile I have illustrated my invention in some detail it is not to be limited to these precise details, but may be carried out in other ways, as expressed within the scope of the following claim. I

I claim as my invention:

In combination, a relatively thin, flatjawed, U-shaped holder made of springy metal and provided with inwardly struck lugs, and a substantially rectangular, double edged razor blade having an aperture in each corner thereof, the blade being adapted to be held in the holder with the lugs of the holder in engagement with two of said apertures in the blade, while the other two apertures of the blade serve to receive a wire or the like for extracting the blade from its holder, the blade being further provided with a plurality of outstruck lugs near the sharp" edges thereof, said lugs being adapted to rest on the upper edge of the U-shaped holder for limiting the inward movement of the blade with respect to the holder.

In testimony whereof I hereunto afiix my signature.

MERRILL ANDERSON.

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