US1981958A - Safety razor - Google Patents

Description

Nov. 27, 1934. J. u. KOREE 1,981,958

SAFETY RAZ OR Filed Dec, 15, 1930 INVENTOR.

' ATTORNEY.

Patented Nov. 27, 1934 SAFETY RAZOR Jean U. Kore, New York, N. Y., assig'nor to Flexo Safety Razor Corporation Application December 15, 1930, Serial No. 502,409

1 Claim. (Cl. 30-12) The present invention relates to improvements thehandle being shown in elevation; Fig. 3 is in safety-razors, and has for its main object to a bottom plan view of the backing element; Fig. provide a device of this type which is of simple 4 is a plan view of the blade; Fig. 5 is a bottom and inexpensive construction, and particularly plan view of the guard member in its curved 5 designed for shaving such parts of the body state; Fig. 6 is a bottom plan view, on a larger 00 which are not easily accessible, such as for inscale, of portions of the backing and guard memstance, under the arms. The invention pertains bers, and the blade; and Fig. 7 is a plan view more particularly to that type of safety razors of the blade illustrating diagrammatically cerwhich is described and claimed in an applicatain conditions hereinafter to be described.

10 tion for Letters Patent for improvements in In the drawing, the numeral 10 indicates a 66 Safety razors filed by me on January 15, 1930, Ser. normally flat resilient guard member, provided No. 420,953. In the said application a safety with suitable guard teeth 11 along its front lonrazor is disclosed which includes a longitudigitudinal edge, and with a hole 12 adapted to nally curved backing member, a normally fiat receive a screw-threaded pin 13 which extends 15 resilient guard member, a blade interposed befrom a rigid backing member 14. This back- 70 tween said backing and guard members, a haning member is longitudinally curved and carries dle abutting against the underface of said guard on its rear longitudinal edge a downwardly promember having a screw-threaded socket, and a lect ng flan e 5, w c is adapted to en a screw-threaded pin extending from said backing the rear longitudinal edge 16 of the guard mem- 20 member into engagement with said handle, ber 10. The hole 12 in the guard member is 15 whereby, upon screwing home said handle, said oblong in Co fig it being ed by wo blade and guard member are longitudinally longitudinal parallel straight edges 17, which are flexed to assume substantially the shape of said connected by oppositely disposed transverse backing member. Due to this arrangement the curved edges 18, the latter forming each part guard member conforms at all times to the of a circle, for a purpose hereinafter to be so shape of the blade, thereby performing its funcdescribed.

tion in all positions thereof relative to the back- The screw-threaded pin 13 on the backing ing member of the. razor. member is flattened, as clearly appears from The main object of the present invention is Figs. 3 and 6 of the drawing, its transverse cross- 80, to improve the construction described in the section corresponding to the configuration of said application for Letters Patent by providing the hole 12 in the guard member, it fitting snugmeans which efficiently guide and position the 1y thereinto, as shown in Fig. 6 of the drawing. blade while it is being flexed and when clamped The screw-threaded pin 13 is adapted to engage between the backing and guard members. with a screw-threaded socket 19 in a handle 20,

It With these and other objects in view, which for the well known purpose. The said pin is will more fully appear as the nature of the inadapted to pass through an aperture 21 in a vention is better understood, the same consists thin flexible blade 22, having a single cutting in the combination, arrangement and construcedge 23. The opposite longitudinal edge of said tion of parts hereinafter described, pointed out blade abuts against the flange 15, when mounted -40 in the appended claim and illustrated in the upon the razor. The configuration of the aperaccompanying drawing, it being understood that ture 21 corresponds to that of the hole 12 in many changes may be made in the size and prothe guard member, as appears from Figs. 4 to 6, portion of the several parts and details of coninclusive, of the drawing. The blade is furtherstruction within the scope of the appended more provided at each corner thereof adjacent -45 claim, without departing from the spirit or sacthe cutting edge 23 with a re-entrant recess 24,

riflcing any of the advantages of the invention. which is adapted to receive a lug 25 at the front One of the many possible embodiments of the edge of the blade backing member. invention is illustrated in the accompanying In assembling the elements of the razor, they d aw in which: first occupy the positions shown in dotted lines 511 Figure 1 is a front elevation, partly in section, in Fig. 1 of the drawing, in which the resilient of a razor constructed in accordance with the guard member is in its normal flat state. The invention, the elements being shown in full lines rear edge 16 of the said guard member abuts in shaving positions, and in dotted lines before then against the flange 15 but only at its ends. the blade is being flexed; Fig. 2 is a central The rear edge of the blade is similarly disposed.

' transverse section taken through the elements, Consequently, the said guard member and blade would not be properly guided as the blade and guard member are being flexed, as will hereinafter be described, notwithstanding the fact that the lugs 25 on the blade backing member are disposed in the re-entrant recesses 24 in the blade and in the re-entrant recesses 24 in the guard member, the latter recesses being in alignment with the recesses 24 in the blade. However, inasmuch as the guard member and blade are provided each with an oblong hole, into which the flattened pin 13 on the blade backing member is fitted, proper guiding and blade positioning means are provided. When the handle is turned in the proper direction to flex the blade, it is obvious that both the blade and the said guard are flexed longitudinally by reason of the fact that the transverse edges of the rigid backing member rest upon the blade. The blade and guard have a tendency to flex, when the handle is screwed home, so as to assume the shape of the rigid backing member, that is to say to be curved'longitudinally. In the shaving positions of the elements, shown in full lines in Fig. 1 of the drawing, both the blade and guard assume the exact shape of the said backing member, and in any'intermediate position the blade assumes the shape of the guard so that I in all positions the longitudinally curved cutting edge of the blade is fully protected by the guard teeth. Owing to the fact that the cutting edge of the blade, in shaving position, is longitudinally curved, curved surfaces of the body may be readily shaved, for instance the arm pits.

As appears from Figs. 4 and 7 of the drawing, the aperture 21 in the blade is placed close to'the rear longitudinal edge of the blade. A circle which may be circumscribed the aperture 21, shown in dotted lines and indicated by the numeral 26 in Fig. 7 of the drawing, is thus located in close proximity of the rear edge of the blade. The purpose of this arrangement is as follows: Assuming that some one were to design a blade to fit the razor herein described, the aperture in the blade would have to be circular as shown in dotted lines in Fig. 7 of the drawing in order to accommodate the pin 13. If such aperture were cut into the blade, it would weaken the latter to such an extent that it would crack adjacent its rear edge when being flexed. Unauthorized blade manufacturers could,

razor construction herein described, provided that the specific location and configuration of the blade aperture herein described could be protected by Letters Patent.

As appears from Figs. 1 and 2 of the drawing, the screw-threaded portion of the handle 20 is provided with a laterally extending flange 21, which bears against the underface of the guard member. The purpose of this extended surface is to cause the guard member and the blade to flex on a large radius when the handle is screwed home on the pin 13.

What I claim is:

In combination, a flexible blade, a blade holder comprising a rigid longitudinally curved back member and a flexible guard, said blade and guard having each an oblong hole therein, a pin on the back member conforming in shape and size to the holes and adapted to fit in the holes to hold and align the blade and the guard, and means on the pin engaging the guard to hold the blade and the guard against the back member and cause the blade and guard to bend longitudinally to assume any form from a straight line to the curvature of the back member.

JEAN U. zones.

therefore, not produce and sell blades to fit the

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