US2350816A - Safety razor - Google Patents

Description

June 6, 1944. J. F. PRZYBYSZ 2,350,816

SAFETY RAZOR Filed Oct. 1a, 1943 JOSfP/l C. P22 Y5 r52.

I N V EN TOR.

to fit between bars l9, and the longitudinal spacing between notches is preferably only a few thousandths of an inch less than the longitudinal spacing between the bars l9 at the opposite ends of each guard bar. l8. fitting of the blade to the-outer plate, and removal therefrom, but limits play of the blade relative to plate I2 for centering purposes. Obviously thisfeatureinsures maintenance of parallelism between the cutting edges and the guard bars, and a precision assembly of parts without requiring special care in the assembly operation.

The parts are assembled with blade I3 between and in full face engagement with faces and portion, an outer plate having a fiat blade-en- This permits free 5 :corner bars bent angularly from said plate, and

26 of plates 12 and II, respectively. Thus the blade is fully supported and held rigid by said plates, except at its cutting edges and at its end margins. The support is sufficient to prevent distortion or waviness of the cutting edges; No 'special-care in' assembly is required because of therself-fitting function served by the inclined iendnbars. l9. Hence, assembly is simple, quick ;.andLaccurate,.andentails mere putting of the E parts-together in proper relation and tightening :.-of the handle on stud 23 to effect a clamping of' :the blade 1 between, the plates. The relative lengths of the. plates and the blade,=together'with ;,-bevel 28 of the inner plate, make dis-assembly or separation of. parts easy.

-;; The unitary elongated guard bars l8 and the 30 ,;elon gated slots l6 serve several important pur- =.poses. The guard bar I}! smooths andstretches -.the skin ahead of ,the blade, completely avoiding fc r n' ation of skin ridges, and the beveled edges g 22 smooth the skin on the. other side. of the blade.

,. Hence, the cutting edge, being parallel to said bar, has a uniform beard-cutting action upon a flatvstretched area of skinat all times, and will .not cut or chafe the skin. The bar also uniform a guard bar spanning the outer ends of said corner bars, said blade and inner plate being notched at their corners, whereby their side portions fit between said inclined corner bars, and means for clamping said plates together.

3. A safety razor comprising an outer plate having a longitudinal slot defining a U-shaped guard projecting angularly outwardly therefrom,

an inner plate, means for clamping said plates together, and a blade clamped between said plates and having an edged portion projecting laterally therefrom through said slot.

-4 A safety razor comprising an outer plate having a pair of longitudinal slots defining opposed marginal U -shapedguards projecting angularly outwardly therefrom, an inner plate, means for clamping said plates together, a blade clamped between said plates and having opposed edged portions extending through said slots, said inner plate and blade being centered by engagement thereof with the angular end portions of said guards.

; 5. A safety razor comprising an outer'plate having parallel longitudinal slots defining transverse corner bars bent angularly therefrom and fly; smooths. and distributes the shaving, cream -.ahead of, the blade. Also, in view of the slight projection ofthe cutting edge beyond the plane -of tl;1e oute r inclined edges of bars 19, the skin ,cannot be cut, regardless of the angle'at which,

the .razor is held. This is, in distinct contrast to 7 conventional razors wherein the blade is flexed to presentasmall anglebetween the cutting edge and the path of movement when the razor is held ,incertain, positions so that the skin can be cut when the razor is held at such angles if the razor :is pressed against the skin beyond the critical -D0int'0rrif'the plates are loose. Note also that .ithe'. continuous. character of the slot provides an therazor, andavoids small pockets in which the .mixed cream-and hair couldfindlodgment or .which would makgcleaning' difi'icult. At, the same timethe groove can bemade narrower than ;;-in previous razor constructions .to increase the supportfor the blade; ,The;formationof the guard bar on the outer l. plate ispalso important for additional reasons. i Thus, the corners .of the blade at the ends of the .Qutting edges are protected by the inclined bars l fl, ;';Ihis prevents thepossibilty that .the user open-passage for full free accessof water to wash guard bars spanning the outer ends of said corner bars at each side, an inner plate, a blade, and

means clamping said blade between said plates,

said'inner plate and. blade having portions fitting between and positioned by opposed corner bars.

6. A safety razor comprising an outer plate having parallel longitudinal slots defining transverse corner bars bent angularly therefrom and guard bars spanning the outer ends of said corner barsat each side, an inner plate, a blade, and means clamping said blade between .said

plates,said inner plate and bladebeing of lengths at least equal to; the length of said outer plate and having corner notches defining portions. fitting between thecorner barsat opposite ends of 7 each slot.

7. A safety razor comprisingan outer plate havi ng parallel longitudinal slots defining transverse corner bars bent angularly therefrom and 1 guard bars spanningthe outer ends of 'saidicorner bars at each side, an inner plate, a blade, and

means clamping said blade between said plates,

said blade being notched at its corners and havwill out or inick? his skin on said corners if the razor should be used improperly or if the users hand or, arm should b e unsteady or accidentally jogged or struck.,,A1so, if the razor should be dropped, the "bars l9, prevent thevcorners of the ner bars at each side, an inner plate, a blade, and

blade adjacent the cutting edge from being stnick, and hence-prevent breakage of the blade. claim... 1

v 1;Ajsafetgj raz or comprising a hat substan- 4 ingedged portions passing through said slot, said ple nentary to said corner bars.

8. ,A safety, razorcomprising an outer: plate having parallel longitudinal slots defining. transverse,corner bars bent angularly therefrom. and guard bars spanning the outer ends of said corinnerplate having beveled corner notches commeansclamping said blade between said plates,

saidplates havingflat blade-engaging faces and said blade being of,a width, to pass through said tia1ly'rectangular blade notched at each corner slots.

9. A safety razor comprising an outer plate having parallel longitudinal slots defining transverse comer bars bent angularly therefrom and guard bars spanning the outer ends of said corner bars at each side, an inner plate, a blade, and meansiclamping said blade between said plates, said guard bars and the adjacent plate edges inwardly of said slots including coplanar outer surfaces, said blade passing through said slots with its cutting edges spaced between and substantially in the planes of said surfaces.

10. A safety razor comprising an outer plate,

corners fitting said corner bars for accurate reg- 1 ister of said plates and blade.

JOSEPH F. C. PRZYBYSZ.

Images