US1221065A - Safety-razor. - Google Patents

Description

H. G. LUTZ.

SAFETY RAZOR.

APPLICATION FILED MAR. 29, l9l6.

Patented Apr. 3, 1917.

HARRY G. LUTZ, or GENEVA, NEW YORK.

SAFETY-RAZOR.

raaroea.

Specification of Letters Patent.

Application filed March 29, 1915. Serial No. 87,528.

f To all whom it may concern:

a safety razor of extremely simple construc-.

tion, to the end that the cost of manufacture may be low and the separation and assemblage of the parts by the user can be most easily and quickly done, andwhich will have other advantages that willbe appreciatedi when the construction is understood from the description hereinafter given and the illustration shown companying drawings in which- Figure 1 is a perspective view of a safety razor embodying my invention;

Fig. 2 is a similar view showing the parts separated;

Fig. 3 is a vertical, longitudinal section. y razor is composed of a thin, flexible blade 10, clamping plates 11 and 12, respectively, which engage it Orr opposite sides, the plate 12 being the guard plate and preferably having its edge adjacent the razor edge toothed, or comb shape,as is common, and a handle 13. In what I regard as a desirable form of myinvention, the blade 10 is polygonal in shape, as shown in the drawings square, so as to present four cutting edges and the clamping plates are correspondingly shaped, the upper, or outer clamping plate 11 being preferably slightly smaller in area than the blade. At the center of the upper or outer clamping plate 11, is the threadedstud 14, which passes through a central hole 15 in the blade, and

in the aca central hole 16 in the guard plate and 1 projects below the latter to receive an in ternally threaded hole 17 inthe end of the handle, and as the handle end overlaps the surface of the guard plate adjacent its hole 17, the two plates are thus caused to clamp the blade between them. The surfaces of the two plates in contact with the interposed blade are, respectively, concavo-convex, the blade-engaging surface of the guard platebeing convex so that the blade is thereby placed under tension and its cutting edge given the necessary stifi'ness for shaving. It will be seen that by rotating plate 11,

' blade.

the handle to vary the pressure of the two plates upon the blade, the closeness of the Patented apt. a, ram.

shave may be adjusted by adjusting the 1 blade edge with reference to the guard plate. r

On the blade-engaging side of the outer there are several lugs, or projections 18 that extend in directions radial of the, stud 14, and in the blade are slots 19 that radiate from the center of theblade and there are similar slots 21 in the guard plate, these slots being of such size and' number and relative position that they may.

readilypass over the lugs. This device of the lugs and slot secures the various parts together so that no turning movement of one with reference to the other can take place, and the provision of the radial'slots in the blade "has the very important advantage of contributing to'the flexibility of the blade as the slots being entirely outside of the handle can be made of considerable length and reach well out toward the blade edges with out undue weakening of the slots extend diametrically. And to add still further to the flexibility of the blade I- Preferably with a square blade the parts of my razor can be very easily and quickly done. Thus, with the upper plate 11 lying in one hand the blade and guard plate are simply dropped in position over the lugs and then the handle screw d upon the stud 14. The separating operation is as simple because upon the removal of the handl the remaining pieces readily fall apart.

While I show the rectangular square form of blade,

it will be understood I do not limit myself to that particular shape.

Having thus described my invention what I claim is 1. .A safety razor comprising a blade, clamping members on opposite sides thereof, one of which forms the guard for the blade, a threaded stud attached to the outer clamping member and passing through ooincidlng openings in the blade and other clamping member, a handle having screw engagement with said stud, and lugs onone of the clamping members exterior to the handle and engaging slots in the'blade said slots extending outward from the lade opening and said lugs being spaced at their clamping member, a handle having screw engagement with said stud, and lugs on one of the clamping members exterior to the handle and engaging slots in the blade, said slots extending outward from the blade opening and said lugs being spaced at their inner ends away from said threaded'stud, and the screw-engaging portion of the handle entering the space between the inner ends of the lugs and the stud, and slots in the other clamping member and the blade being polygonal and provided with slits ex tending from its corners inward.

3. 'A safety razor comprising a blade, clamping members on opposite sides there of, one of which forms the guard for the blade, a threaded stud attached to the outer clamping member and passing through coinciding openings in the blade and other clamping member, a handle having screw engagement withsaid stud, 'and lugs on one of the clamping members exterior to the handle and engaging slots in the blade and slots in the other membenand the end of the handle having a bearing against portions of said member between the slots therein, said slots extending outward .from the blade opening. and said lugs being spaced at their-inner ends away from said threaded stud, and the scrmv-engaging portion of the handle entering the space between the inner ends of the lugs and the stud.

In testimony that I claim the foregoing I have hereunto set my hand.

H ARRY G. LUTZ.

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