US1974182A

US1974182A - Safety razor

Info

Publication number: US1974182A
Application number: US650851A
Authority: US
Inventors: James H Groh
Original assignee: Individual
Current assignee: Individual
Priority date: 1933-01-09
Filing date: 1933-01-09
Publication date: 1934-09-18
Anticipated expiration: 1951-09-18

Description

J. H. GROH SAFETY RAZOR Sept. 18, 1934.

Filed Jan.

1N VENTOR.

ATTORNEY.

Patented Sept. 185, 1934 l SAFETY'RAZOR James H. Groh, Ocean Park, Calif.

Application January 9,

2' Claims.

This invention relates to improvements in safety razors. The general object of the invention is to provide a device for use with a safety razor whereby a safety razor blade may be honed frequently and still shave as close as originally.

Other objects and the advantages of this invention will be apparent from the following description taken in connection with the accompanying drawing wherein:

Fig. 1 is a side elevation of a safety razor partly in section showing my invention.

Fig. 2 is a face view of the razor guard on a device operatively positioned thereon.

Fig. 3 is an enlarged fragmentary section of a'v safety razor without my invention applied theretoff:`

Fig. 4 is a view similar to Fig. 3 showing my@ invention in use and showing the position ofthe 20 razor blade before the cap is tightlyclamp'ed to the guard.

position of the razor blade after `the cap is clamped to the guard and, Fig. 6 is a view similar to Fig. 2 showing a modified form of my invention. Referring to the drawing by reference charac ters I have indicated a safety razor generally at 10. The safety razor 10 is typical of well-known types and includes a cap l2, a guard 13 and a handle 14. The inner face of the guard 13 is convex in cross section and has protuberances 15 thereon for correctly positioning a razor blade, such as the blade 16, thereon. As-is well-known most safety razor blades include a plurality of apertures of diversified shapes such as indicated at 17 to fit over the protuberances 15 of the guard and to allow the blade to flex without breaking.

After a safety razor blade has been honed a number of times the cutting edge thereof when positioned in the holder is farther from the edge of the guard and does not shave as smoothly or as close as originally. That is a razor blade before honing projects slightly beyond a line indicated at 18 in Fig. 3 and as the cutting edge s worn away by honing the blade the cutting edge recedes from the line 18. The purpose of my invention is to cause the cuttingl edge of the razor blade to be positioned beyond the line 18 after the blade has been honed.

As shown my invention comprises a plate 20 which is adapted to te. positioned between the guard 13 and the razor blade. The plate 20 is made of flexible metal similar to a razor blade and is preferably magnetized. The plate 20 is 1933, Serial No. 650,851

preferably aboutthe same length as the razor blade but is of a width wherein when it is positioned on a safety razor the sides thereof are spaced inward from the holding portion 22 of the cap. f

The plate 20 includes a plurality of apertures 2l which are preferably7 shapedtbonform to the shape of the apertures' 1'7 of thera'zor blade.

Normally when the safety razor is operatively assembled the side of the cap as indicated at 22 in Flg.- 3V engages' the razor blade and clamps it to the guard with. the body of the-razor blade conforming to the arc of the inner face of the guard.) y

When the platev 20 is positioned between the ,guardv and the razor blade" as shown in Fig. 4 and the handle is turned to assemble the parts Athe holding portion 22l of the cap engages the blade and rst moves it to the position shown in Fig. 4. Some persons prefer to use the blade in this position when shaving but when used thus vit is necessary to push the razor more firmly against the face so that the blade will cut the beard. Most persons nd the adjustment shown in Fig. 5 wherein the handle is tightened firmly to be the best shaving position. In this position the engagement of the cap and-guard is such that a reverse bend is formed as indicated in Fig. 5 and the sharpened portion of the blade in this Figure is located at substantially the same shaving position as is the sharpened edge of the razor in Fig. 3.

The plate 20 further includes outwardly curved finger members 23. These fingers are positioned slightly inward from the ends of the cutting portion of the razor blade so that when lthe cap is clamped in position the ends of the fingers firmly engage and may even slightly bite into the razor blade andA prevent accidental shifting of the blade relative to the holder. Furthermore, when the cap is tightened down towards the guard the finger portions 23 of the plate as they are positioned closer to the holding portion 22 of the cap than the intermediate portion of the plate, lessen the reverse bend of the razor blade so that the corners of the blade. do not project outward as far as the intermediate portions thus lessening the chances of the blade corners nicking a person when shaving.

In Fig. 6 I have shown a slight modification of my invention at 25. As shown the plate 25 is similar to the plate 20 and the blade includes apertures 17 while the plate includes apertures 21. The plate 25 does not include the fingers 23 like the plate 20 and the side edges of the plate have a slight outward bow. The plate 25 is used as described in connection with the plate 20.

From the foregoing description it will be apparent that I have provided a novel attachment for safety razors which is simple in construction and highly efficient in use.

Having thus described my invention, I claim:

1. The combination of a safety razor having a guard and a cap with a flexible blade confined between the guard and the cap and with the adjacent faces of the guard and the cap curved so that the cap contacts the blade only on a longitudinal portion adjacent the outer edge of the cap, and the guard contacts the blade only in a longitudinal portion near the cutting edge of the blade and between the portion where the cap engages the blade and the cutting edge of the blade, and an attachment comprising an insert of less width than the distance between the longitudinal portions where the cap engages the blade, said attachment being positioned between said guard and said blade whereby when said cap is urged towards said guard the edge of the blade is curved opposite to the curvature of the cap. I

2. A safety razor comprising a guard having a curved outer face, a plate engaging the central portion of said guard, a flexible blade covering the plate and engaging the outer edges of said plate, said blade engaging said guard in linear contact adjacent to the blades cutting edges and between the extreme edges of the guard and the edges of the plate, and a cap having a curved inner face, said plate being of less width than the width of the guard and cap, said cap contacting said blade in linear engagement between the two aforesaid lines of engagement and means to draw the cap towards the guard whereby the central portion of the blade is curved and the blade adjacent to the edges is slightly curved reversely to the curvature of the central portion of the blade.

JAMES H. GROH.