US1912155A - Safety razor - Google Patents

Description

May 30, 1933. I MURQS I 1,912,155

' SAFETY RAZOR Filed April 24, 1951 INVENTOR foagnk awao ATTORNEY Patented May 30, 1933 UNITED STATES/PATENT oFFlcE JOSEPH MUROS, OF NEW YORK, N. Y., ASSIGNOR GILLETTE SAFETY RAZOR COM- PANY, 0F BOSTON, MASSACHUSETTS, vA CORPORATION OF DELAWARE SAFETY Razon Application inea April 24,

An object of my invention is to provide a safety razor in which blade clamping members may be conveniently and expeditiously caused to clamp a blade` in shaving position between said members and as eX- peditiously released from the blade. In carrying out my invention I provide a safety razor including blade clamping members, a handle rotative with respect to one. of the members and provided with cam-like portions adapted to cooperate with `jaws on the other member, and blade positioning means on one of said members, whereby when the parts are assembled the handle may be given a partial rotation for quickly causing the said members to clamp the blade inshaving position therebetween.

My invention also comprises novel details of improvement that will be more fully hereinafter set forth and then pointed out in the claims.

In the accompanying drawing,

Fig. 1 is a side elevation of ay safety razor embodying my invention; A

Fig. 2 is a sectionon line 2, 2 in Fig. 1;

Fig. 3 is a section on line 3, 3 in Fig. 2;

Fig. 4 is a section similar to Fig.v 2 showing the parts spread for application or re' moval of a blade; Y

Fig. 5 is a detail section on line 5, 5 in Fig. 4;` l y Fig. 6 is a detail plan view of the cap or blade backing member; 4

` Figs. 7 and ,8 are detail sections on line 7, 7 in Fig. 2, showing the handle in different positions;

Fig. 9 is a detail perspective-of a portion *Y of the handle;

Fig. 1'0 is a plan view of a blade adapted for use in my improved razor, and,

Fig. 11 is a sectional detail view, exploded, illustrating a modification.

Similar numerals indicate corresponding Y parts in the several views.

The numerals 1 and 2 indicate blade clamping members, the` member 1 being shown as a guard member and the member 2 as a cap or backing member, adapted to clam a blade 3 betweenthem. l The guard mem er is slotted longitudinally along its ber.

',(F-i"- 9). The cap or backing member is vprovlded with projections 11 adapted lto 1,931. Serial' No. 532,559.

`central portion. In orderpto reinforce the Jrather long slots on each side of the'b'ridge. 55

Furthermore, the bridge serves as an initial centering means of the cap member by en` gagement with the lugs on the rib of the cap member. The lugs straddle the bridge and guide the cap `member to clamped' posi- 60 tion on the guard as the parts are assembled and drawn together by the handle and lug construction. At 4 is a handle adapted to cooperate with the members 1 and 2 to clamp them against the blade. In the form shown in Figs. 1 to 8 thev handle 4 is rotatively carried by the `guard member. I have illustrated the handle 4 as provided with a bore' 5 that opens through the inner end of the handle and receives a headed guide stem or pin fthat is attached to the guard mem- The pin or stem 6 is shown provided with a reduced portion 7 that enters an' aperture in the guardmember or bridge thereof and is secured thereto as by riveting the pin or stem to said member. At 8 is a. I spring within the enlarged portion v5a of the bore of handle 4, which spring bears against a stop shoulder 9 in the handle and against head 6a of the pin or stem 6. When 80 the parts are assembled, as in Figs. 2 and 4, the handle 4 may be rotated on its guiding pin orstem 6. The outer end of the handlef is shown provided with a head 4a having spaced inclined or cam-like surfaces 4b. I have shown the head as provided with two cam-like surfaces 4b, on opposite sides, the head being provided with recesses 10 on opposite. sides, between the cam-surfaces,

cooperate with the head 4a of the handle yfor retaining the members '1 and 2 clamped against'the blade. The projections 11 are spaced apart to receive the adjacent portion of the handle between' them, and the recesses 10 ofthe head 4a are adapted to receive the projections 11 when the members 1 and 2' are being assembled The projections 11 are shown provided with recessed portions 11m that'oppo'se each other, the inner ends ofthe projections 11, being closer'together than the width of said recesses, whereby the head 4a, of the handle may be received in said recesses. The projections 11 will pass through the slotted portion of" the guard provided with the opening or openings la in member 1. The openings 1a are preferably in the form of slots.

Means are provided to position the blade with its cuttting -edges in shaving relation to the guard. "Projecting means may be provided oneither of the members 1 or 2 to enter an aperture or apertures 3a of the blade.

sides of the projections 11, and space apart in such a way as toenter the aperture or slot 3a of the "blade, to position the blade on the cap 2, whereby said projections will retain the blade in shaving position on the guard when the blade is between the members 1 and 2, as in Figs. 1,2 and 3.v The guard memberis shown provided with recesses 12a to receive the projections 12 to permit the members 1 and 2 to be clamped against the blade with the latter resting against the guard member;

In the form shown in Figs. 1 to 8 the members 1 and 2 are hinged together at one side, so that the members may be spread apart for removal and application of a blade.I I' have illustrated the guard member 1 as provided with a hinge pin 13 receiving a bearing or hole 14 in a hinge extension 15 of the cap member 2, the bearing 14 preferably being elongated to permit-relative the handle will be rotate movement of the cap and guard members to and from each other when being clamped against the blade. When the parts are to be assembled in Yshaving relation a blade will be placed upon the cap member and positioned thereon by the projections 12, as in Fig. 4, whereupon parts 1, 2 and 3 will be swung together or closed with the blade between said members, andthe handlel will be turned to such position as to enable the projections 11 to pass through the recesses 10 of the head 401 of the handle, as illustrated infFi 7 whereupon u ment of the handle, arresting it in position with its recesses 10 in registration with the openings 1a. of the guard member.

I havel illustrated the member 2 as provided with projections 12, on o posite' suiiciently to- The spring 8 by cooperating with the handle and with the head l6a of the pin or stem 6 affords a convenient and resilient `means permitting vthe parts to be readily assembled -and for maintaining friction on the handle so that it will not become displaced in the open position of the razor. 'When a 'blade is to be removed the handle, will be rotated in a reverse direction to release the head 4a from the projections 11 so that the cap and guard members may be separated to expose the'blade.

In Fig. 11 I have illustrated a modification in which the handle 4 is not permanently attached to the guard member.l In this vgOrm o1 my invention the cap or backing member 2 is shown provided with a projcction `16 that is located mid-way between the opposing ends of the projections 1l, and said projection 1 6 is adapted to' enter the lopening 1b in the guard member and the bore bfin the end of the handle to center or guide the. latter. When the parts are to 'be assembled the blade will be placed bctween the guardfand backing members, and the handle will be adjusted against the guard member with the projection 16 extending into the bore 5b for guiding the handle for rotation while the members 1 and 2 Aare held by the lingers in clamping relation to the blade between said members. Proper rota tion ofthe handle willv cause the inclined surface 4b of the head 4a to cooperate with projections 11 to clamp the members .1 and 2 against the blade, and by rotating the handle in a reverse direction the members 1 andl 2 may be released and separated 'for removal and replacement of the blade.

Having now described my invention what 1. A safety razor comprising a guard having a handle swiveled thereto and longitudinally disposed, slots on each side of said handle,.and a cap hingedto the guard and lprovided with a blade-locating rib registering with the slots of the guard and undercut projections adapted to extend through the slots upon opposite sides of the handle, the

handle lhaving a locking head co-operatingv therewith to retain thel ca p in clamping position.

2.1A safety razor comprising a guard, a stem projecting from the guard, a tubular handle journaled on the stem, a spring within the handle normally holding the latter in end engagement with the guard, .and a cap arranged for interlocking engagement with the handle.

3. A safety razor comprising a guard, a stem projecting from the guard, a tubular handle journaled on the stem and having alocking head at its end arranged to bear upon the guard, a spring surrounding said lstem and acting .to press the locking head against the guard, and a hinged cap having .llt

projections for interlocking engagement with said head.

4. A safety razor comprising a guard having aligned slots separated by a bridge. portion, a stem permanently secured to said bridge portion, a handle rotatably connected to the stem and havin a locking head thereon, means for yiel lngly connecting the handle and stem, and a cap hinged to the guard and provided Withprojections adapted to pass through the slots of the guard, said yielding connections permitting displacement of the handle longitudinally upon the stem. 5. A safety razor comprising cap and guard members hinged together at one end, a stem fixed in the guard and slots in the guard on either side of the stem, ribs on the cap registering with said slots and having projections adapted to be located on either side of the stem, a handle rotatable upon the stem and having a lockinghead, and a spring acting between said stem and handle to hold the locking head of the handle against the surface of the guard.

JOSEPH MUROS.

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