US1796260A

US1796260A - Safety razor

Info

Publication number: US1796260A
Application number: US204438A
Authority: US
Inventors: Henry J Gaisman
Original assignee: Gillette Safety Razor Co
Current assignee: Gillette Co LLC
Priority date: 1927-07-09
Filing date: 1927-07-09
Publication date: 1931-03-10
Anticipated expiration: 1948-03-10

Description

March l0, 1931. H. .1.- GAlsMAN 1,796,260

SAFETY RAZOR Filed July 9, 1927 INVENTOR ATTORNEY .5. blade will Patented Mar. 1o, 1931 HENRY J'. GAISMALLOF NEW YORK, N.

GILLETTE SAFETY RAZOR COMPANY, TION OF DELAWARE Y., ASSIGNOR, BY M ESNE ASSIGNMENTS, TO F BOSTON, MASSACHUSETTS, A CORPORA- RAZOR Application led July 9,

One' of the objects of my invention is to provide a safety razor blade in which the blade may be readily attached to and removed from a blade holder and in which the be free to move into various positions relative to the holder and toa guard.

Another object is to provide a blade holder and a guard movable relatively one to another, whereby the guard and the blade may be moved into and retained in different shav- A claims.

ing positions and the blade and the guard may be moved into compact relationship to the handle of the razor for storage purposes.

My invention comprises a safety razor including la blade holder provided with retaining means for a blade and a blade having means complemental to the first named retaining means for engagement therewith, whereby the blade may be detachably connected with the blade holder and may be turned or swung into variouspositions for cooperation with a guard that is provided with means to retain the blade in shaving relation thereto.

My invention further comprises a support, a guard carried thereby, a blade holder carried by the support, the guard and the blade holder being mounted for relative rotative movement so that the blademay be adjusted with respect to the guard for shaving and may be released from the guard, and means to retain the blade holder and the guard in different set positions with the blade in 0perative relation to the guard.

My invention also comprises novel details of improvement that will be more fully hereinater set forth and then pointed out in the Reference is to be had to the accompany- Y`in drawings forming a part hereof, wherein Figl; A

gs. 4 and 5 are details of part of the support or handle of the razor;

1927. Serial No. 204,438.

Fig. 6 is a detail section on line 6, 6, in Fig. 1;

Fig. 7 is a perspective view;

Fig. 8 is a detail of a blade;

Fig. 9 is a section on

line

9, 9, in Fig. 8;

1lcflig. 10 illustrates a modified form of Fig. 11 is asection on line 1l, 11, in Fig. 10;

Fig. 12 is a central section of a modification;

Fig. 13 is a detail section online 13, 13, in Fi .12, and F ig. 14 is a per ective view same as i 7 modified. SP g Similar numerals of reference indicate corresponding parts in the several views.

A support is indicated at 1 shown in the form of a handle having a guard 2 and a blade holder 3 for the blade A. The guard is shown provided with a head 2a carried by the support 1 and provided with an interior annularly disposed guiding face 2b within which the blade holder 3 is located, said blade holder being substantially in curved form, the exterior curved surface 3 of the blade holder being located against the curved surface 2b, whereby the blade holder and the guard head 2a may be axially rotated relatively one to the other. In the example illustrated in Figs. 1, 2, 3 and 7 the blade holder 3 is retained from movement respecting the support or handle 1 by means of a rod 4 that extends through the bore 1a of support 1, and at the upper end said rod is secured to the holder 3, as by riveting at 4a, and the head 2a of the guard is rotatively guided by and around the holder 3, for which purpose said head is provided with an opening or slot at 2 which receives the adjacent end portion of rod 4 so that the\ head 2a may be adjusted with the guard relatively to support or handle 1. Means are provided to retain the parts in adjusted positions, for which purpose I have shown a nut 5 operative on the screw threaded end 4 of rod 4 and adapted to engage the adjacent end of support or handle 1, whereby when the nut is set tight against the support the rod 4 will draw the blade holder 3 tightly against the head 2a. By preference a spring 6 is located in the enlarged portion of bore 1a and bears at one end against nut 5 and at the opposite end against a stop shoulder 1b of support 1, the spring tending normally to draw the parts 2a and 3 into enga-gement, and the nut 5 secures the parts inset position, (Fig. 1). When the nut 5 is unscrewed for a suitable distance from support 1,v (Fig. 4) the pressure of the latter against head' 2a, will be relieved so that the support with its projection may be adjusted along the rod 4 and the head may be rotated relatively to the blade holder 3 on a substantially common axis therewith.

The blade A is adapted to be detachably connected with the blade holder 3, for which purpose I have shown they blade holder provided with blade retainers 3a, shown in hooklike form and spaced apart, extending from the outer edge of the blade holder, and the blade is provided with spaced slots or openings a complemental to the detainers 3a adapted to be readily connected to and disconnected from said retainers by suitably locating the blade relative to the retainers, as indicated in Figs. 7 and 14, and then passing the retainers through the slots a to hang the blade on the retainers. In the example illustrated in Figs. 1, 2, 3, 8, 9, 12 and 14 they rear edge of the blade opposite its cutting edge is provided with a backing B, which may be in the form of a folded piece of metal secured along the blade in any well known way, the' slots a being formed through the blade and Vthro-ugh the backing in register. In the example illustrated in Figs. 10 and 11 the backing B is omitted and the slots a in the blade P are utilized solely for connection with the retainers 3a. When the. blade is in shaving relation to the guard the retainers oppose the metal at the sides of the slots a of the blade to resist the thrust of stops 2c against the blade edge, said stops being shown near the corners of guard 2. The guard 2 is also shown provided adjacent to the stops 20 with lugs 2d which overlie the adjacent portions of the blade to retain the latter in shaving relation to the guard and permit sliding adjustment of the cutting edge .of the blade relative to the guard while the blade is retained thereon.

Bay means of the construction described the bla e edge may be adjusted against the stops 2Q by suitably rotating the guard head 2 and securing the parts together by means of the rod 4 for a relatively close shave, or the blade edge may be adjusted rearwardly respecting the guard for a relatively coarse shave, as indicated in Fig. 3.

Means are provided to retain the guard in dii'erent positions respecting the blade according to the degree of rotation of the blade holder and head 2a relatively to one another. For such purpose I have shown the support or handle 1 provided with a projection 1c adapted to engage one of several notches 2" in the guard head 2a ,to keep the latter from rotation when the parts are assembled for shaving. When the guard and blade edge are adjusted for shaving, as in Fig. 1, (as for a close shave), the projection 1c will enter one of the notches 2 to retain the blade and guard in shaving relation, and when the latter are in a different position the projection 1c will enter a different notch 2, as indicated in Fig. 3, as for a coarse shave. The nut 5 may be suitably unscrewed when it is desired to adjust the projection 1c relatively to either of the notches 2, and then the nut be screwed on the support 1 for re-r taining the parts in set position.

A further advantage of my improvements is that the guard may be moved to a position extending along and relatively close to the support 1 with the blade extending atwise against the guard, as indicated in Fig. 2. The parts may be adjusted to the last named position by suitably unscrewing the nut 5, rotating the blade holder and its head 2a, rotating the blade against the guard, and screwing back the nut to secure the parts'together. The construction described affords a means for compactly locating the parts, as in Fig. 2, when the razor is not to be used for shaving, as for storage and transportasurface 2b for adjusting the blade edge with respect to the guard. The holder 3 is lshown rovided with a linger piece 7 operative in a slot 8 in head 2a for convenience in rotatingl the blade holder to advance the blade toward and retract it from the guard teeth, the stops 2o `and lugs 2d. To retain the blade holder with the blade edge in the desired shaving relation to the guard a projection 4b is provided on rod 4 adapted to enter spaced notches 3 in the blade holder to retain the latter in set position respecting the uard and its head 2a. When the blade is to e applied to the holderor to the guard the nut 5 may be suitably unscrewed so that the rod 4 may be pushed inwardly to release its stop 4b from a notch 3, whereupon the blade holder may be rotated to the right hand in Fig. 12 to release the blade from the guard lugs for replacement of the blade, and the blade holder may bel rotated reversely. When the blade edge is set in the desired relation to the guard teeth-the projection 4b may be entered in the appropriate notch 3, the nut then being screwed tight against support 1 ,er and the'head one within the other gfor ad-` for retaining the parts in shaving relationf justing the blade respecting the guard, and means to retain the head and the guard with the blade in shaving relation to the guard.

2. A safety razor comprising a guard, a head having an annular surface. the guard extending beyond the head, a blade holder having an annular'surface rotatively cooperative with the first named surface, whereby the guard and a blade carried by the blade holder may be adjusted respecting one another, and means toretain the head and the blade holder in set position.

3. A safety razor comprising a support, a guard having a head rotatively carried by said support, a blade holder rotatively cooperative with said head for rotary lnotion of the blade holder and head relatively to one another, and means -to secure the head and the blade holder in set positions.

4. A safety razor comprising a support. a guard having an annular head movable relatively to the support, an annular blade holder rotatively associated withl the head, and means to retain the blade holder and head in set positions with the guard and a blade in shavingrelation and in a position extending along the support.

5. A safety razor comprising a support, a guard having a head, the head having al curved surface, the guard projecting outwardly from the head, a blade holder having a curved surface cooperative with the first named surface for rotation of the head relatively to the blade holder for adjusting the guard with respect to the support and the blade, and means to retain the head and blade holder in set positions.

6. A safety razor comprising a support, a guard having a head, the head having a curved surface, a blade holder having a curved surface cooperative with the first named surface for rotation of the head relatively to the blade holder, the support and the head having cooperative projection and recesses for retaining the guard in set positions respecting the blade holder, and means to retain the projection and recesses in operative relation, which means include a rod connected with the blade holder and extending into the support, a nut upon the rod cooperative With the support, and a spring within the support cooperative therewith and with the nut,where, by the spring Will permit movement of the support along the rod for adjusting the Aprojection and the recesses together and the nut will operate with the support and rod to retain the parts secured together.

7. A safety razor provided with a guard and a blade holder mounted for axial rotation of one relatively to the other, the blade holder having one or more blade retainers, and a blade provided with one or more slots adjacent to an edge thereof and adapted to receive the retainer for detachably and rotatively connecting the blade with'the blade holder.

8. A safety razor as set forth in claim 7, in which the retainer is located at an edge of the blade holder.

9. A safety razor provided with a guard and a blade holder mounted for axial rotation of one relatively to the other, the blade holder having spaced blade retainers, and a blade provided with spaced slots adjacent to an edge thereof and adapted to receive said retainers for detachable and pivotal connection therewith.

10. A safety razor provided with a blade holder having spaced blade retainers, and a blade provided with spaced slots adjacent to an edge thereof and adapted to receive said retainers for detachable and pivotal connec tion therewith, the retainers being in hooklike form adapted to receive the slots of the blade.

11. A safety razor comprising a guard having an annular portion, a blade holder provided With means to retain a blade,'the guard and blade holder being mounted one within the other for axial rotative movement relative one to another for adjusting the blade with respect to the guard, means to retain the blade upon the guard, and means to retain the guard and blade holder with a blade in shaving relation to the guard.

HENRY J. GAISMAN.