US2118498A

US2118498A - Safety razor

Info

Publication number: US2118498A
Application number: US5178A
Authority: US
Inventors: John E Drew
Original assignee: DURHAM DUPLEX RAZOR Co
Current assignee: DURHAM DUPLEX RAZOR Co
Priority date: 1935-02-06
Filing date: 1935-02-06
Publication date: 1938-05-24
Anticipated expiration: 1955-05-24

Description

May 24, 1938 J. E. DREW I 2,118,498

' SAFETY RAZOR Filed Feb. 6, 1955 3 FIGS F|G.6

INVENTORY I ,I@/t&t4/

ATTORNEY Patented May 24, 1938 SAFETY RAZOR John E. Drew, Jersey City, N. J., assignor to Durham Duplex Razor Company, a corporation of New York Application February 6, 1935, Serial No. 5,178

3 Claims.

This invention relates to improvements in safety razors, more particularly to safety razors of the hoe type.

The main object of the invention is to secure the blade clamp to the guard in a novel and more efficient manner. To this end the under face of the clamp may be provided with a longitudinal recess or well and undercut lugs overhanging the recess, and the clamp may be retained on the guard by spring clips passing through a slot or perforations in the blade and adapted to engage the undercut lugs of the clamp. Moreover, the spring clips may be integral with the guard or fixed in a curved handle, which is permanently or detachably secured to the guard, and have their free ends dovetailed into the clamp so that the latter may be removed from the guard by sliding it endwise, and replaced in a similar manner.

A further object of the invention is to permit a close shave to be obtained with one cutting edge of the razor and obtain a shave which is not close, with the other edge. In pursuance of this object the longitudinal edges of the clamp are of different thickness to permit the opposite cutting edges of the razor to be applied to the face at the required angle for the two different types of shave.

Another object of the invention is to reversibly secure the clamp to the guard by spring clip-s or other means which will take up the wear on the clamp, whereby the two different types of shave may be obtained with each cutting edge of the blade.

With these and other objects not specifically mentioned in View, the invention consists in certain constructions and combinations hereinafter fully described and then specifically set forth in 40 the claims hereunto appended.

In the accompanying drawing which forms a part of this specification and in which like characters of reference indicate the same or like parts:

45 v Fig. 1 is a side elevation of the safety razor, the clamp and blade being omitted therefrom;

Fig. 2 is a front elevation of the same;

Fig. 3 is a plan view of one form of guard suitable for the razor;

Fig. 4 is a cross-section of the guard taken on the line 44 of Fig. 3;

Fig. 5 is a side view of the assembly of the guard and clamp with the blade therebetween;

Fig. 6 is the corresponding end view of the same;

Fig. 7 is a similar side view of the assembly with the clamp reversed on the guard;

Fig. 8 is the corresponding end view of the latter;

Fig. 9 is a plan view of the under face of the clamp;

Fig. 10 is a side elevation of the clamp;

Figs. 11 and 12 are cross-sections of the clamp taken on lines H-|| and |2|2, respectively, of Fig. 9;

Fig. 13 is a diagrammatic view of the blade; and

Fig. 14 is a diagrammatic view of the blade positioned on the guard, indicating the blade in proper relationship with respect to the spring clip.

In carrying the invention into effect there is provided a curved handle, a guard mounted on the handle, a clamp reversible end-for-end on said guard, means for interlocking the clamp with the guard in either position of the clamp, and a blade held between the guard and the clamp. In the best constructions contemplated, the guard is provided with .two oppositely facing spring clips having mortised ends, and the clamp has two sets of opposed tenons adapted to interlock with the mortises on the spring clips in either position of the clamp on the guard. In the best constructions, also, the under face of the clamp has a longitudinal recess and the tenons are formed by undercut lugs on the side walls of the recess, and the longitudinal edges of the clamp are of different thickness to permit the cutting edges of the razor to be applied to the face at different angles, whereby a close shave may be obtained with one cutting edge of the blade and a coarser shave with the other edge.

Referring now to Figs. 1 and 2, the guard l is permanently or detachably secured to a curved handle 2 in any suitable manner. The oppositely facing spring clips 3 may have their ends fixed in the handle and project through transverse slots in the guard, as shown, or may be formed integrally with the guard.

As shown in Figs. 3 and 4, the guard may be provided with opposite longitudinal slots 4 disposed to underlie the cutting edges of the blade when it is clamped thereon, to permit the passage of the soap and hairs removed from the face by the cutting edges of the blade. The bars 5, which form one side of the slot, may have a series of transverse grooves in order that the soap may be rinsed therefrom more readily.

Referring to Figs. 9 and 10, it will be seen that the under face of the clamp B is provided with a recess or well 1 having opposed pairs of undercut lugs on its sides. The free ends of the spring clips 3 are mortised so that they may be brought into interlocking relation with the tenons formed by the undercut lugs 8. Since the hooked ends of the clips face in opposite directions it will be apparent that they may be interlocked with the tenons 8 upon inserting them in the well 1 and sliding the clamp endwise over the guard until the abutment 9 of the clamp meets the end of the guard, and that the clamp is reversible end-for-end on the guard. By reason of the oppositely facing arrangement of the spring clips 3 the wear on the tenons 8 will be taken up, the spring clip nearest the abutment 9 acting to press the clamp 6 down on the guard I while the adjacent set of tenons is sliding into interlocking engagement therewith, and the free end of the other spring clip flexing inwardly to permit the other set of tenons to freely slide into interlocking engagement with the mortises of the spring clip farthest from the abutment 9. It will also be understood that the blade In which may be flat and have a slot or perforations through which the spring clips project, is thus locked between the guard and clamp.

By referring to Figs. 6, 8, 11, and 12, it will be observed that the opposite longitudinal edges of the clamp are of different thickness to permit the opposite cutting edges of the blade to be applied to the face at different angles, so that a close shave may be obtained with one cutting edge of the blade and a shave which is not so close with the other edge. Since the clamp is reversible on the guard, as shown in Figs. and 7, a close shave may be obtained with each cutting edge of the blade, and it is immaterial from which end of the guard the clamp is moved into interlocking engagement with the spring clips. From this it follows that a close shave will always be obtained by the cutting edge adjacent the thinner edge of the clamp and a coarser shave with the cutting edge adjacent the thick edge of the clamp, which is readily distinguishable from the thinner edge of the clamp.

What is claimed is:

1. In a safety razor, the combination with a handle, of a guard mounted on said handle, a clamp reversible end-for-end on said guard, means for interlocking said clamp with said guard in either position of the clamp, and a flat blade held between said guard and clamp and provided with cutting edges on its longitudinal edges, said means including two oppositely facing spring clips having mortised ends projecting lengthwise along the guard, and two sets of opposed tenons adapted to slidably interlock with the mortises on the spring clips upon sliding the clamp endwise over the guard, the longitudinal edges of the clamp being of different thickness to permit the cutting edges of the blade to be applied to the face at different angles to obtain a close or coarse shave, whereby a close shave may be obtained with both cutting edges of the blade upon reversing the clamp on the guard.

2. In a safety razor, the combination with a curved handle, of a rigid, perforated guard mounted on said handle, a rigid clamp reversible end-for-end on said guard, means for interlocking said clamp with said guard in either position of the clamp, and a perforated blade held between said guard and clamp, a longitudinal recess being formed in the under face of the clamp, and said means including two sets of opposed lugs formed on the side walls of said recess and oppositely facing spring clips fastened in said handle and having mortised ends projecting longitudinally and inwardly through the perforations of said guard and blade, the lugs being undercut to provide tenons adapted. to slidably interlock with the mortised ends of the spring clips.

3. In a safety razor, the combination with a handle, of a rigid perforated guard mounted on said handle, a perforated blade positioned on said guard, a pair of yielding members fastened in said handle and projecting upwardly from the handle through the said perforations of said guard and blade, and a rigid clamp constructed and arranged to be interlocked with said members upon sliding the clamp longitudinally of the guard.

JOHN E. DREW.