US2534490A - Safety razor - Google Patents

Description

F. A. WEEKS 2,534,490

SAFETY RAZOR Dec. 19, 1950 Filed June 5, 1947 fflVfZ 1'07" 4 F/Zla/ee ifs a \"///////////l IIIIIIIIII/IA I ti v W '15 ll W///////// B Z i Hfforney Patented Dec. 19, 1950 UNITED STATES FATENT OFFICE SAFETY RAZOR Frank A. Weeks, Scobey, Miss.

Application June 5, 1947. Serial No. 752,662

3 Claims.

This invention relates to safety razors and the general object is to provide a safety razor which is so constructed as to permit its use with any form of safety razor blade as, for instance, either thin, flat double-edged blades or single-edged blades having a stiff and rigid back, and whether the blades are slotted, apertured or solid.

Another object is to provide a razor in which, if a fiat double-edged thin and flexible blade is used, it may be transversely bowed to any desired extent within the limitation of operation of the blade holder.

A further object is to provide a guard resiliently forced against the outer margin of the blade and clamping the blade in place but permitting the ready removal of the blade.

:Still another object is to provide a blade holder of this character in which the blade may be held in proper cutting position and against accidental shifting and which is adjustable to suit blades of varying width.

My invention is illustrated in the accompanying drawings wherein:

Fig. 1 is a section on the line l-| of Fig. 2.

Fig. 2 is a top plan view of the structure shown in Fig. 1, but without the handle.

Fig. 3 is a top plan view of the blade supporting plate, the clamping plate being removed.

Fig. 4 is a section on the line 4-4 Of Fig. 1.

Fig. 5 is an enlarged detailed section of the connection between the adjusting screw and the abutment plate. 1

In the drawings, :3 designates the back plate of the razor or blade holder which at its inner edge is formed with a narrow shank ll termimating in an angularly related enlarged stem [2 having a central threaded stud I3 on which the handle l4 screws. This handle may be knurled or have any desired form.

The outer face of the back plate for about onehalf of its width is convexly bulged outward at l5 and the inner face of this plate is concavely curved at l6, thus the plate has a relatively sharp or acute outer edge l1. Disposed in a recess in the plate is a cross-bar I8, which as shown in Fig. 4, carries two pins i9 and an intermediate threaded pin 20. The back plate has three apertures 2| through which these pins pass. The back plate also is formed with the inwardly projecting ears 22 and on the inner face of the back plate is a yoke 23 having forwardly extending ends 24 provided with laterally extending pins 25. Through this yoke extends an adjusting screw 26 having a ball and socket connection 21 with an adiustable abutment 28 which has a iii) length approximately equal to the distance between the portions 24 of the yoke 23.

Pivoted on the laterally extending pins 25 by ears 29 is a blade-clamping plate 33, whose forward portion is slightly concavo-convex. The rear edge of the plate is provided with a shank or finger-piece 31 extending rearward in spaced angular relation to the shank ii and urged away from the shank H by a coiled expansion spring 32.

The forward edge of the clamping plate is dentated at 33 and at each end of the dentated portion there are downwardly and inwardly turned hooks 34. The clamping plate is also formed with the openings :5 through which pins ill and screw 20 pass. Engaging screw 28 and bearing against the outer face of the clamping plate is a nut 36 by which the clamping plate may be forced down against the blade B to any desired extent. By forcing the clamping plate against the blade, the convex face of the clamping plate will bear against the flexible blade and bend the blade at its middle into the concavity Iii, thus curving the blade in the manner usual in a certain class of razors.

While the screw 20 and the pins 19 are necessary for blades which are apertured or blades which are apertured and relatively thin, for the purpose of securing a proper bowing or flexing of the thin blade, yet where rigid blades are used, that is, blades which are relatively thick and not intended to be flexed and which blades are unapertured, then the bar I3 is removed from the recess in the back plate together with the pins i9 and 20. Under these circumstances, the blade is held in position with its back resting against the abutment 28 and the forward edge of the blade at its ends within the hooks 34 and is held clamped down against the back plate by the clamping plate 33 urged downward by the spring 32. The abutment 28 may be shifted inward or outward by the screw 26 and thus may be adjusted to wider or narrower blades. By adjusting the abutment 28, the blade may be adjusted into close relation to the hooks 34 and thus brought in proper relation to the guard dents 33.

It will be seen that this razor is adapted to support many different styles of blades and where thin flexible blades are used to flex these blades in the manner necessary therefor. The blade, may be readily removed by removing the nut 36, where this nut is used, and then depressing the rear portion of the clamping plate which will permit the blade to drop out or be readily removed.

The ball and socket joint 27 permits the abutment 23 to bear evenly against the back of the blade and adjust itself thereto.

While I have illustrated certain details of construction and arrangement of parts, I do not wish to be limited thereto except as defined in the appended claims.

There are many advantages due to the particular construction which I have illustrated and described, but generally speaking, this razor permit a traveler going from one part of the country to another, from village to village, and from city to city, to be able to buy razor blades at any town or village and to be certain that the blades so bought will fit his razor, because the razor which I have devised is capable of handling all blades, whether these blades are merely p613 forated or longitudinally slotted thin blades or socalled rigid blades with rigid backs. razor, if the retailer of one village or town does not have thebuyers first choice, he can make another choice of blades. Furthermore, a friend can accommodate th owner of this razor by giving him a blade or blades to use. Furthermore, any blade can be correctly adjusted, thereby affording the possessor of thi razor guarantee of satisfaction and service. i What is claimed is:

1; In a razor of the character described, a back plate adapted to support a razor blade, a handle attached thereto, one face of the back plate having' a concavity thereacross bordered by an edge of-the plate, a blade clamping plate operatively pivoted upon the back plate and disposed across said concavity, the blade clamping plate having a convex underface confronting the concavity, one edge of the clamping plate being dentated and disposed along said edge of the back plate, blade edge engaging hooks at the ends of said dentated edge, and a spring urging the dentated edge of the clamping plate toward the said edge of the back plate.

2. In a razor of the character described, a back plate adapted to support a razor blade, a

handle attached thereto, one face of the back plate having a concavity thereacross bordered by an edge of the plate, a blade clamping plate 0peratively pivoted upon the back plate and disposed across said concavity, the blade clamping With this plate having a convex underface confronting the concavity, one edge of the clamping plate being dentated and disposed along said edge of the back plate, blade edge engaging hooks at the ends of said dentated edge, a spring urging the dentated edge of the clamping plate toward the said edge of the back plate, posts carried by the back plate, the clamping plate having apertures through which said posts extend, and a nut engaging one of said posts and bearing against the outer face of the clamping plate.

3. In a razor of the character described, a back plate, a handle attached thereto, one face of the back plate having a convex portion thereacross bordered by one edge of the plate and the opposite face having an opposing concavity, the convex portion of the back plate being recessed, a bar removably disposed in said recess and having a plurality of pins extending through the back plate, one of said pins being screw-threaded, a clamping plate operatively pivoted upon the back plate inwardly of the concavity, said clamping plate having a convex underface extending across confronting the concavity of the back plate, the clamping plate having a forward edge dentated and disposed along the said one edge of the back plate, blade edge engaging hooks at the ends of said dentated edge of the clamping plate, the clamping plate having apertures for the passage of said pins, a nut engaging the screw-threaded pin and bearing against the clamping plate,.'a spring urging oscillation of the clamping plate in a direction to move the dentated edge toward the said one edge of the back plate, and an adjustable abutment mounted upon the back plate and adjustable toward and from the said one edge of the back plate.

FRANK A. WEEKS.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 956,532 Kieselhorst May 3, 1910 994,642 7 Hubbs June 6, 1911 2,038,230 McWillia-ms Apr. 21, 1936

Images