US1825766A

US1825766A - Safety razor blade

Info

Publication number: US1825766A
Application number: US247669A
Authority: US
Inventors: Anderson Merrill
Original assignee: Individual
Current assignee: Individual
Priority date: 1928-01-18
Filing date: 1928-01-18
Publication date: 1931-10-06
Anticipated expiration: 1948-10-06

Description

Oct. 6, 1931. M. ANDERSON 1,825,766

SAFETY RAZOR BLADE Filed Jan. 18, 1928 1,. 1927. The subject matter of this application Patented Get. 6, 1931 M 'TATE MEBRILL ANDERSON, OF NEW YORK, N. Y.

- sArnrY RAZOR BLADE Application filed January 18,1928. SeriaLNo. 247,669.

This invention is in a safety razor blade, and represents an improvement over the safety razor blade shown in my copending application, Serial No. 214,167, filed August 19,

is also related to my copending application, Serial No. 247,670, filed on even date herewith.

The invention here is a safety razor blade of 'eneral rectaiwular'sha e nrovided with a two sharpened edges, and provided with two notches in each end of the blade, one near each corner thereof, so that it can be used with a razor of the self-stropping or Auto-strop type, shown, for example, in the patent to Gaisinan No. 1,022,726, dated April 9, 1912 and also in patents 1,022,727, dated April 9, 1912 and 1,088,220, dated February a, 191a.

Ly providing the blade with a notch in each corner, and by providing two sharpened edges, the blade is readily reversible, so that its life is practically doubled.

lhe blade is also provided with shoulder lugs bent from the metal of the blade, which are adapted to rest on the upper edge of a blade holder for limiting the inward movement of the blade with respect to the holder, so that the blade will not be forced too far into the holder and the sharp edge within the holder thereby dulled.

Another feature of the invention is a blade holder, U-shaped in crosssection and provided with flat gripping jaws. This holder is sufliciently stil so that it provides a rigid backing for a thin metal blade and is sufiiciently springy so as to firmly grip the blade between its jaws.

This blade holder is also provided with lugs, pressed from the metal of the holder, which are adapted to snap into the notches in the corner of the blade, for holding the lade in the holder.

The blade, without its holder, may be used in a safety razor of the self-stroppingtype and may be reversed after one edge is dull, to

use the new edge, thereby doubling the life of the blade.

The blade, when mounted in the U-shaped holder above described, may be used in the well known type of safety razor known as the Gem, as shown in Patent No. 1,018,78 dated 1912, to Scheuber.

There is thus provided a safety razor blade, which is readily capable of use in either of two widely known types of safety razors, the Autostrop and the Gem type, and

moreover is provided with two sharpened holder Figs. 5, 6 and 7 show modified forms of blades and holders;

Fig. 8 shows the blade in position in a. Gemrazor; and

Fig. 9 is also a view of a modifiedform of blade and holder.

Referring now to these drawings in which similar reference characters indicate similar parts, the blade 2 is of general rectangular form and is provided with sharpened

edges

4 and 6, and with

notches

8 and 10 in the ends of the blades near the corners. These notches preferably have straight parallel sides 10a and a curved inner part 107).

The center portion of the blade may be cut away as shown at 12, and the upper and lower edges of the cut-out portion bent laterally, forming flanges 14.

This blade is mounted in the standard Auto-strep holder as shown in Fig. 2; this holder comprises the

usual gripping jaws

16 and 18 and the

usual members

20 and 20 which snapinto the notches for holding the blade in place.

After one edge of the blade has been used, the blade may be reversed and the sharp edge brought into position for shaving.

Referring now to Fig. 3, shoulders 22 are struck out from the metal of the blade; these shoulders are adapted to rest on the upper I be positioned in a U-shaped holder, and when so positioned, ma Y be used in a safety razor of the Gem or Everyready type.

Referring to Fig. 4, a blade 24, of the type shown in Fig. 3, is positioned in a U-shaped the.

notches

8 or 10, and thus hold the holder the holder having a pair of flat springy gripping jaws 26. Lugs 27, corresponding to lugs 22 of Fig. 3, rest on the top edge of the U-shaped holder, and serve to limit the inward movement of the blade with respect to the holder, and to provide a clearance 28, for protecting thatsharp edge of the blade, which is within the holder.

Referring now to Fig. 5, the blade is provided with

notches

8 and 10, as before. The U-shaped holder comprises flat springy gripping jaws 29 connected at the bend 30. The metal of the holder is struck inwardly to form projections 32, which are adapted to snap) into lade in position in the holder so that there is a clearance 34 below the lower sharp edge, for preventing the dulling of that edge by contacting with the inside of the holder. With i the blade in place in the holder as shown in Fig. 5. the blade may be used in a razor of the Gem type, as in Fig. 8. After one edge is dull, the blade may be readily reversed and the other sharp edge used.

In the blade shown in Fig. 6, shoulders or lugs 36 are pressed out ofthe metal of the blade, these shoulders being adapted to rest on the upper edge or edges of the U-shaped holder for limiting the inward movement of the blade with respect to the holder. Lugs 32 snap into the

notches

8 and 10, as before, for further aiding in the accurate and secure holding of the blade. This form includes both the features of Figs. i and 5.

In the form shown in Fig. 7, the blade 38 is provided with notches 40 and is fitted into a U-shaped holder of the type already de scribed, which has inwardly projecting lugs 32 snapped into the notches 40, for holding the blade in position.

The exposed

notches

8 or 10, as the case may be, furnish gripping points useful in extract-ing the blade. The blade itself may be made of rustless steel, and may also be cov ered with water repellant grease, for preventing the rusting of the edge of the blade within the holder. The exposed

shoulders

14, 22 and 36, also furnish gripping points useful in extracting the blade from the holder, preparatory to reversing the blade, or to the insertion of a. fresh blade.

In Fig. 8, a blade of the type shown in Fig. 5 is shown in position in a razor of the Gem type, having the usual pivoted spring cover member 42 for clamping the blade in place.

Any of the blades of Figs. 4, 5, 6 or 7 could be used in this holder.

In the modification shown in Fig. 9, the U-shaped holder is provided with elongated lugs, pressed or cut from the bod of the holder, and these lugs 43 snap into e ongated slots 44 cut in the blade, for securing the blade in place.

Yhile I have illustrated my invention in some detail, it should be understood that it is'not to'be limited to the precise details here shown, but may be carried out in other ways, as expressed within the scope of the claim.

I claim as my invention:

A safety 'razorblade made of thin metal, ha ng t ha p ne e es, and P TQT with a notch in each corner thereof, the notches opening endwise of the blade, the blade being further provided with a plura ity 0f e t c ugs jac n t sha p edges of the blade, two of the notches serving to engage with a suitable holder, while the other two notches furnish exposed gripping points useful in extracting the blade from the holder, the outstruck lugs being adapted to rest on the upper edge of the holder for limiting the inward movementof the blade with respect to the holder.

In testimony whereof I affix si ature.

MERRILL emulati n llf)