US1107538A

US1107538A - Safety-razor.

Info

Publication number: US1107538A
Application number: US51870709A
Authority: US
Inventors: Thomas E Mcdermott
Original assignee: Individual
Current assignee: Individual
Priority date: 1909-09-18
Filing date: 1909-09-18
Publication date: 1914-08-18
Anticipated expiration: 1931-08-18

Description

T. E. MODERMOTT.

K SAFETY RAZOR. APFLIUATION FILED sBPT.1,19o9.

191073538, Patented Aug.18,1914.

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THOMAS E. MCDERMOTT, OF SOMERVILLE, MASSACHUSETTS.

SAFETY-RAZOR.

Specification of Letters Patent.

Patented Aug. 18, 1914.

Application filed September 18, 1909. Serial No. 518,707.

T0 all whom t may concern.

Be it known that I, THOMAS E. MODER- Mo'r'r, acitizen of the United States, residing at Somerville, in the county of Middleand State of Massachusetts, haveinvented certain new and useful Improvements in Safety-Razors, of'which the following is a specification, reference being had therein to the accompanying drawing.

My invention relates to improvements in safety-razors, in which means are provided for holding the blade firmly in position under varying pressure and preventing vibration of the blade when in use.

The object of the invention is to provide a safety-razor of improved construction and adapted to produce improved results in use by providing a blade-bed which is resilient and which exerts a constant yielding pressure upon the blade, thereby permitting the blade to be adjusted for a close or medium shave and by holding the cutting edge firmly, the resilient blade-bed prevents the cutting edge from vibrating.

Another object is to provide the safetyrazor with a roller for rubbing lather on the face.

A full understanding of my invention can best be given by a detailed description of a preferred construction embodying the various features of my invention, and such a description will now be given in connection with the accompanying drawings, and I attain my object by the mechanism there illustrated, showing such preferred construction, and the features forming the invention will then be specifically pointed out in the claims.

In the accompanying drawings Figure 1 is a side elevation of my improved safetyrazor showing` the blade-bed holder and parts in outline. Fig. 2 is a front elevation showing the blade-bed holder and parts in outline. Fig. 3 is a longitudinal section of the blade-bed holder and adjacent parts on the line 3-3 of Fig. 1. f Fig. 4 is a plan view partly in section of the blade-bed holder and blade on the line 4-4 of Fig. 1. Fig. 5 is a cross section of the blade-bed holder and lather roller on the line 5 5 of Fig. 3.

Latitude is allowed herein as to details, since they may be varied or changed at will without departing from the spirit of my invention.

Corresponding and like parts are referred to in the following description and indicated in all the figures of the drawings by the same reference characters.

In the drawings 1 is a U-shaped frame inclined and having side arms 2, which are joined at their ends by an inclined bladeplate 3. A blade-bed holder 4 is provided with walls 5, 6 at right angles with ,its base, and has a guard-plate 8 provided with teeth 9 extending from the upper portion of the wall 5. IVithin the blade-bed holder 4 is placed a blade-bed 10, which is adapted to move vertically and freely therein and which has side walls 12, 13 and

end walls

14 and 15, at right angles with the blade-bed 10. The base of the blade-bed holder 4 is provided with studs 16 upon which are mounted springs 17, the upper ends of which rest upon the under surface of the blade-bed 10. The walls 5 and 6 of the blade-bed holder 4 are arovided with studs 18, which are adapted to pass through openings 19 in the side walls 12 and 13 of the blade-bed 10, which act as guides for the blade-bed 10 and limit its movement in the blade-bed holder. The upper surface of the blade-bed 10 is provided with a recessed portion indicated at 20, adapted to hold the blade 21. The lower surface of the blade-plate 3 is provided with a raised portion 22 of the same dimensions as the blade, which is adapted to cover the blade and aid in holding the blade firmly in position in th-e blade-bed holder.

The blade-bed 10 is provided with blade guides 23 adapted to engage openings in the blade 21, so as to hold it against lateral movement and hold it in proper position with respect to the guard. attached to the frame 1 and is provided with a clamping-screw 26 inserted in a longitudinal opening in the handle 25. thumb-` screw 28 is mounted on' the clamping-screw 26 in an opening 29 in the upper part of the handle. The clamping-screw 26 is provided with a slot 30 and a pin 31 passes through the handle into the slot. The upper end of the clamping-screw 26 is provided with a stud 32,- which is adapted to freely engage an opening in the base of the blade-bed holder 4.

A lather roller 34 provided with longi= A handle 25 is tudinal corrugations 35 on its surface is attached to thc wall 6 by ears 36 or the roller may be attached to the side arms 2 of the frame l. The ears 86 are pro-vided with openings into which the ends of the spindle 3S pass. A spring catch 39 may be placed, if desired, over the ends of the spindle 38, to permit the latheil roller Slto be readily attached and detached.

In operation the blade 21 is placed in the recessed portion 20 of the blade-'bed l0, as shown in Fig. 3, so that, when the clamping-screw 2G is operated so as to press the blade-bed l0 against the blade, the raised portion 22 of the blade-bed 10 will be pressed against the upper surface of the blade and the blade will thus be held firmly in position.l When the blade is thus held the constant pressure ot the springs 17 holds it rigidly and firmly, although the blade-bed is sufficiently resilient to yield to the beard as the cutting edge `comes in contact with the hair, yet the constant pressure of the springs does not permit the blade to vibrate as it cuts through the beard. The lather roller 34- is so placed on the blade-bed holder that it can be used to advantage in i'ubbinglather on the tace, and for this purpose the surp face is preferably provided with longitudinal corrugations. The roller is preferably made of rubber, but any other suitable material may be used. c

` It is to be understood that my invention is not limited to the specific details of construction shown in the accompanying drawings, but that said details maybe varied in the practical carrying out of my invention. It is also to be understood that the combinations speciiically set forth in the several holder, depending walls upon the said bladebed cooperating with the said upwardly extending walls of the blade-bed holder, means interpositioned between the said blade-bed and blade-bed holder to render the bladey bed and blade constantly resilient, means for preventing the blade from vibrating or springing out oit position longitudinally, and

means for graduating the resiliency of the s'aidblade-bed and blade.

2. In a safety-razor, a iframe, a blade-bed holder within the said frame, means coperating with the said frame to render the said blade-bed holder movable therein, a bladebed for holding a blade mounted in the said f blade-bed holder and adapted to move thereci;

in, Aand means interpositioned between the said blade-bed and blade-bed holder to render the blade-bed and blade constantly resilient. i

3. In a safety-razor, a frame, a blade-bed holder within the said frame, means cooperating' with the said trame lto render the said blade-bed holder movable therein, a blade` bed for holding a blade mounted in the said blade-bed holder and adapted to move therebed holder and adapted to move therein and provided with longitudinal and end walls, resilient means interpositioned between the said blade-bed and blade-bed holder, the said longitudinal walls of vthe said blade-bed being provided with-openings, andstnds attached to and connecting the walls of the blade-bed holder and passing through the said openings in the longitudinal walls of the blade-bed.

5. In a safety-razor, a frame, a blade-plate joining the ends of the said frame, a bladebed holder within the said frame, means cooperating with the said. frame to render the said blade-bed holder movable therein, a blade-bed mounted in the said blade-bed holder and adapted to move therein, resilient means interpositioned between the said blade-bed and blade-bed holder, means tor holding the said blade-bed in position'in the said blade-bed holder, a recessed portion in the upper surface of the said blade-bed adapted to receive and hold a blade, and a raised portion on the lower surface of the said blade-plate adapted to press upon the blade and to cooperate with the said recessed portion in holding the blade firmly inposition in the blade-bed.

6. In a safety-razor, a frame, a. blade-plate joining'. the ends oi the said frame, a bladebed holder within the said frame, means coj operating with the said'frame to render the said blade-bed holder movable therein, a blade-bed mounted in the said blade-bed holder and adapted to move therein, resilient means interpositioned between the said blade-bed and blade-bed holder, means for holding the said blade-bed in position in the said blade-bed holder, a guard, and a recessed portion in the upper surface of the said blade-bed adapted to receive and hold the blade.

7. In a safety-razor, a frame, a blade-plate joining the ends of the said frame, a bladebed holder within the said frame, means cooperating with the `said frame to render the said blade-bed holder movable therein, a blade-bed mounted in the said blade-bed holder and adapted to move therein, resilient means intcrpositioned between the said blade-bed and blade-bed holder, means for holding the said blade-bed in position in the said blade-bed holder, a guard, and a raised portion on the lower surface of the said blade-plate adapted to press upon a blade in the blade-bed and to aid in holding the blade firmly in position in the blade-bed.

8. In a safety-razor, a frame, a blade-plate joining the ends of the said frame, a bladebed holder within the said frame, means cooperating with the said frame to render the said blade-bed holder movable therein, a blade-bed mounted in the said blade-bed holder and adapted to move therein, resilient means interpositioned between the said blade-bed and blade-bed holder, longitudinal walls upon the said blade-bed holder, depending longitudinal and end walls upon the said blade-bed, the said longitudinal walls of the blade-bed being provided with openings, studs attached to and connecting the longitudinal walls of the blade-bed holder and cooperating with the openings in the longitudinal walls of the blade-bed, and a recessed portion in the upper surface of the said blade-bed adapted to receive and hold the blade.

9. In a safety-razor, a frame, a bladeplate joining the ends of the said frame, a blade-holder within the said frame, means coperating with the said frame to render the said blade-bed holder movable therein, a blade-bed mounted in the said blade-bed holder and adapted to move therein, resilient means interpositioned between the said blade-bed and blade-bed holder, longitudinal walls upon the said blade-bed holder, depending longitudinal and end walls upon the said blade-bed, the said longitudinal walls of the blade-bed being provided with openings, studs attached to and connecting` the longitudinal walls of the blade-bed holder and cooperating with the openings in the longitudinal walls of the blade-bed, and a raised portion on the lower surface of the said blade-plate adapted to press upon a blade in the blade-bed and to aid in holding the blade firmly in position in the bladebed.

10. In a safety-razor, a frame, a bladeplate joining the ends of the said frame, a blade-bed holder within the said frame, means cooperating with the said frame to render the said blade-bed holder movable therein, a blade-bed mounted in the said blade-bed holder and adapted to move therein, resilient means interpositioned between the said blade-bed and blade-bed holder, longitudinal walls upon the said blade-bed holder, depending longitudinal and end walls upon the said blade-bed, the said longitudinal walls of the blade-bed being provided with openings, studs attached to and connecting the longitudinal walls of the blade-bed holder and coperating with the openings in the longitudinal walls of the blade-bed, a recessed portion in the upper surface of the said blade-bed adapted to receive and hold a blade, and a raised portion on the lower surface of the bladeplate adapted to press upon the blade and to coperatie with the said recessed portion in holding the blade firmly in position in the blade-bed.

Il. In a safety-razor, a frame, a blade-bed holdeil within the said frame, means coperating with the said frame to render the said blade-bed holder movable therein, a blade-bed for holding a blade mounted in the said blade-bed holder and adapted to move therein, means interpositioned between the said blade-bed and blade-bed holder to render the blade-bed and blade constantly resilient, and means for graduating the resiliencji7 of the said blade-bed and blade.

l2. In a` safety-razor, a frame, a blade-bed holder within. the said frame, means coperating with the said frame to render the said blade-bed holder movable therein, a blade-bed for holding a balade mounted in the said blade-bed holder and adapted to move therein, means interpositioned between the said blade-bed and blade-bed holder 'to render the blade-bed and blade constantly resilient, means for holding the said bladebed in position in the said blade-bed holder, and means for graduating the resiliency of the said blade-bed and blade.

1.3. In a safety-razor, a frame, a blade-bed holder within the said frame, means coperating with the said frame to render the said blade-bed holder movable therein, a blade-bed for holding a blade mounted in the said blade-bed bolder and adapted to move therein, means interpositioned between the said blade-bed and blade-bed holder to render the blade-bed and blade constantly resilient, means for holding the said bladebed in position in the said blade-bed holder, a recessed portion in the upper surface of the said blade-bed adapted to receive and hold the blade, and means for graduating` the resiliency of the said blade-bed and blade.

lil. In a safety-razor, a frame, a blade-bed holder within the said frame, kmeans coperating with the said frame to render the said blade-bed holder movable therein, a blade-bed for holding a blade mounted in the said blade-bed holder and adapted to move therein, means interpositioned between the said blade-bed and blade-bed holder to render the blade-bed and blade Constantly the resiliency .of the said blade-bed and 10 resilient, means foi' holding` the said bladeblade.

bed in position in the said blade-bed holder, In testimony whereof I aix my signature a blade-plate joining the ends of the said in presence of two Witnesses.

f frame, a raised portion on the lower surface THOMAS E MGDERMOT of the said blade-plate adapted to press v upon the blade in the blade-bed and to aid l/Vitnesses:

in holding the blade firmly in position in ETHEL M. POTTER, the blade-bed7 and means for graduating FRANKLIN S'. FRISBEE.

Copies of this patent may be obtained for five cents each, byA addressing the Commissioner of Patents. Washington, D. C.