US2023564A - Safety razor and blade therefor - Google Patents

Description

Dec, R0, E935.

T. E. wlNN 2,023,564

SAFETY RAZOR AND BLADE THEREFOR Filed Sept. 20, 1954 2 Sheets-Sheet l w, w35. T. E. WINN 2,023,564

SAFETY RAZOR AND BLADE THEREFOR Hummm/nlm umg/umg Patented Dec. 10, 1935 UNITED STATES PATENT OFFICE 4 Claims.

This invention relates to a safety razor and to the blade used therein.

It is aimed to provide an efficient, simple, and durable construction enabling the use of a relatively non-flexible double edged blade in such a manner that both edges may be used in succession, without removal of the blade from the razor, and while the handle and blade relatively are at the proper angle.

It is also aimed to provide a novel type of razor having a backing or covering which disposes both cutting edges of the blade and which in effect is an integral part of the razor construction or unit.

The more specific objects and advantages will in part be pointed out and otherwise become apparent from a consideration of the description following taken in connection with accompanying drawings illustrating operative embodiments thereof.

In said drawings:

Figure 1 isa view of the razor in side elevation,

Figure 2 is an enlarged longitudinal sectional view through the complete razor,

Figure 3 is a sectional view on a plane indcated by the line 3-3 of Figure 4,

Figure 4 is a sectional view on a plane indicated by the line 4-4 of Figure 2,

Figure 5 is a front elevation of the razor,

Figure 6 is -a detail perspective view of the guard section of the razor,

y Figure 7 is a plan view of the vguard section of the razor,

Figure 8 is a detail perspective view of the razor blade,

Figure 9 is a front elevation of a second form of razor,

Figure 10 is a longitudinal sectional view through the said second form of razor, and

Figure 1l is a detail perspective view of the guard section, which may be used with both forms of the razor.

Referring specifically to the drawings, wherein like reference characters .designate like or similar parts, and first to the form illustrated in Figures 1 to 8, the razor comprises a guard plate as at Iii along opposite longitudinal edges of which guard ngers II are provided, and adjacent the inner ends of which, longitudinally extending, parallel, offset ribs I2 are preferably formed integral with the guard plate.

The razor blade as detailed in Figure 8 has a central enlarged portion or backing I2a along opposite edges of which cutting edge portions I3 are provided. Said edge portions I3 m-ay be the opposite sides of a usual razor blade, or they may blade to the guard, with the backing or enlarged 10' portion I2a at one side thereof snugly but removably intertted between the ribs I2. Said head I6 has a stud I1 extending therefrom, through the slot I4, and through the guard I0, into a sleeve or barrel I8 integral with or other- 15 wise provided on said guard. Outward movement of the head I6 and stud I1 is necessary to enable turning of the head at a right angle to the slot I4 and to permit attachment and removal of the blade. To this end, the sleeve I8 is pro- 20 vided with a helical groove I9 engaged by a pin 20 on the stud I1.

A detachable hollow housing 2| surrounds the sleeve I8 and it has a pair of lugs at 22 removably disposed in slots or notches 23 in the back of 25 across both inclined portions, opposite cam sur- 30" faces or inclined surfaces 25 thus being provided.

A handle is provided at 26 comprising a tube 21 fastened to ra neck 28v which at its free end abuts the surfaces 25. Slidable in the neck 28 is another tube 29 in which a clamping rod 36 35 is Slidable having a ball 30 engaged in a socket 3| of the stud I1, thus providing a ball and socket joint. Said sleeve 29 extends through the slot 24 and has a flange at 32 overlapping the inner wall of the housing 2|, and an expansive coil spring 40 33 surrounds said tube 29, abutting the neck 28 at one end, and at its other end abutting an adjustable nut or stop 34, secured on said sleeve 29 as at 35. Said rod 36 has an elongated slot 31 longitudinally thereof in which a pin 38 on sleeve 29 is disposed, to prevent turning of such rod 36 while permitting longitudinal movement thereof. The outer end of said rod 36 is screw-threaded as at 39 and it is engaged in a screw-threaded socket v 40 of a nut 4I having a reduced portion 42 jour- 50 naled in the tube 21, and held against longitudinal displacement by means of a pin or lug 43 on the tube 21 engaged in an annular groove 44 of each nut.

It will thus be seen that when nut 4I is turned 55 in a clockwise direction the head I6 will be moved and held in engagement with the backing l2a of the razor blade and transversely relatively to the slot I4. By turning the nut 4I in a counterclockwise section rod 36 will be actuated away from the nut 4I, stud I1 will be moved outwardly oi the sleeve I8 and head I6 away from the backing I2a. At the same time the pin 20 by riding in helical groove I9, stud I1 and head I6 will be turned through an arc of 90 degrees with the head alined with slot I4 for removal of the blade and its backing. Also when the parts 36 and I1 are loosened, as above described, handle may be swung from one side to the other of the longitudinal axis of stud I1 as suggested infull and l dotted lines in Figure 1 to enable useof the opposite edges I3 of the razor blade.

To hold the handle 26 from rotation in'turn-ing nut 4I, neck 28 is provided with a reduced polygonal extension 28a that engages the side walls of slo't 24. Also to cover slot; 24 a cover member 46 of resilient material. is provided and having angularly related end portions 46a that accommodate themselves to the sides of housing 2l and the cam or inclined surfaces 25 thereof as shown. The sides offhousi'ng 2l: and cam or inclined surfaces 25 are provided with a continuous groove 41 to seat cover member 46 and end portions 46a.

A second form ofthe -invention is shown in Figures 9, l0 and 11, although the guard of Figure 11 is identical with that of the first form. Aside from the handle used in this form of the invention, it is identical with the previous form with the exception that the sleeve I8 andl pin 20 are dispensed with, and a pin D connects a clamping rod 36 to the studr which is here designated I1. In this form, a sleeve 21', neck 28', tube 29', spring 33', rod 36 and nutV 4I' correspondto the parts 21, 28, 29, 3'3, 36 and- 4f of the previous form. Howeven the tube 29' has an enlarged head 32 provided with a, spherical surface at 44, engaging acurved' or spherical sur.-

f face 45 withinthe housing. 'Ihe necessity for the slot 31' and pin 33 in this. form, does not exist. In this form, however, it is necessary that the stud I1 and rod 36' be axially alined while re-V moving orv replacing a blade, but the handle may Vlee adjusted tol an angle to the head as shown in Figure 10V after the blade' has been secured in position in the head.

The form last described, may be operated in substantially the same manner as pointed out with respect to the rst form.

Various changes may be resorted to provided they fall within the spirit and scope of the invention. 5

I claim as my invention:

1. A razor having a guard provided with ribs,

a blade having a backing iitting between said ribs and at the cutting edge adapted to project beyond the` ribs, means to secure the blade to the 10 guard comprising a head,` a stud on said head extending through the blade and guard, a sleeve on the guard engaged by the stud, a pin and helical slot connection between the stud and sleeve, and clamping rod means flexibly connectedv tothe stud.

2. A razor having a guard provided with ribs, a blade havingl a backing tting between said ribs. and at the cutting edge adapted to project beyond the ribs, means to secure the blade to the guard comprising a head, a stud on said head extending through the blade and guard, a sleeve on the guard engaged by the stud, a pin and helical slot connection between the stud and sleeve, clamping rod means flexibly connected te the. stud, ay housing about the sleeve interengaged with the guard provided with oppositely disposed inclined surfaces selectively engageable by the handle according to the edge being used,

A said handle including a portion slidable relatively to the rod and directly engageable with said inclined portions, and a spring within the handle maintaining said engagement.

3. A safety razor according to claim 2 wherein the. connection between the clamping rod and v the Studis a ball and socket joint.

4;. A razor having a guard provided with ribs, a blade having a backing fitting between said ribs and at the cutting edge adapted to project beyond the ribs, means to secure the-blade to the guard comprising a head, a stud on said head extending through the blade and guard, a housing interitted with the guard having oppositely inclined surfaces, a handle having a clamping rod pivoted to said stud, a sleeve about the clamping rod having an enlargement with a spherical surface engaging the interior of said housing, sleeve means4 on the handle about the sleeve selectively engageable with said surfaces, and spring means within the handle to normally maintain the sleeve means in engagement with one of said inclined surfaces.

THOMAS E. WINN.

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