US2048560A - Safety razor - Google Patents

Description

I July 21, 1936. J, MUROS 2,048,560

SAFETY RAZOR Filed NOV. 4, 1935 2 Sheets-Sheet l EL? l a;

JY MUROS SAFETY RAZOR July 21, 1936,

Filed NOV. 4, 1935 2 Sheets-Sheet 2 .L77 veor Patented July 21, 1936 PATENT OFFICE. y

SAFETY RAZOR Joseph Muros, Cambridge, Mass., assignor to Gillette Safety Razor Company, Boston, Mass., a corporation of Delaware Application November 4, 1935, Serial No. 48,165

12 Claims.

This invention relates to safety razors of the type employing hinged cap sections in combination with a guard or other blade-supporting member movable with respect to the cap sections to' clamp a flexible blade in position for shaving. An example of such a razor is to be found in my own prior Patent No. 1,992.038.

An object of the present'invention is torsimplify the mechanism 'for swinging the cap sections to and from their closed position and for moving the blade-supporting member to flex and clamp the blade. The invention contemplates a novel' safety razor structure which may be manufactured with advantage under economical con.-

lfditions and which is compact in arrangement and Iconvenient in operation. As herein shown, the guard is utilized as al blade-supporting Vmem-'YY ber and is arranged for free movement upon the handle" of the razor. The handle is provided with across-bar constructed and arranged to have a multiplicity of functions in the razor.v In the rst place, it is designed to engage the, blade aperture and so position the blade in therazor.

It is 'also utilized as a support for the hinged'or Further, itis so v pivotally mounted cap sections.

related to the guard as to holdthe latter against turning movement in the razor and, finally, it is provided with transverse arms which act as a blade carrier and support the blade in a position above the guard when the latter occupies its lowermost position and the razor is opened for cleaningpr replacing 'the' blade.

Another feature of the invention consists in a nut arranged to Work up and down upon the handle of the razor and to carry the guard, having a swivel connection therewith and serving to move it in one direction or the other when turned by the user. Since the'guard is otherwise free to swing transversely it is arranged to inter- 'lock with the cross-barrin a manner which holds it always in a predetermined angular position while permitting it to move upV and @down forY 5 Fig. 1 is a view in perspective of the razor inY closed condition and on an enlarged scale;

Fig. 2 is a view of the razor head in vertical cross-section on the same scale;

Fig. 3 is a view of the razor head in cross-Sec-A 55j tion on the plane 3 3 of Fig. 2;

Fig. 4 is a View similar to Fig. 2 but showing the guard in a partially loweredv position;

. Fig. 5 is a view of the razor head in open condi'- tion;

Fig. 6 is a cross-sectional View corresponding to 5 Fig. 2 but showing the razor in open condition;

, Fig` "I` is a fragmentary View in cross-section on the line. 'I-'I of Fig. 2, and on a still larger scale;

Fig. 8 is a similar fragmentary View in eleva- 1o tion of a modified detail of construction, and

Fig. 9 is a fragmentary view in perspective showing a'portion ofone of the cap sections modified as in Fig. 8.

In its general organization the safety razor 15 herein shown includes a handle having a crossbar,'upon which two cap sections are pivotallyV mounted, and a guard member which is freely movable upon the end of the handle upwardly into blade-clamping position and which has op- 20 erative connections with the cap sections for swinging them toward and from blade-clamping position.

More specifically the razor includes a` solid elongated handle I0 shouldered to forman end 25 portion I I of reduced diameter which is threaded throughout the major part of its length and forked at its extreme end to receivev a cross-'bar' I2, herein shown as formed by folding longitudinally a sheet metalY blank. The cross-bar I2 is 30 provided centrally with a short downwardly extending stem and this is perforated tor'cceive a pivot pin I3 'which supplies a rocking mount at a fixed height in the end of the reduced portion for the cross-bar. The cross-bar I2V extends 35 equally upon opposite sides' of its pivoted pin. Its ends are offset downwardly and bent to form outwardly and oppositely extending transverse arms I5. Between the outer ends of each pair of arms I5 is pivotally mounted one 'of the cof-operating 40' cap sections IS.l Thercap sections IBthemselves are elongated transversely convex, hinged or pivoted members arranged to swing freely from closed position shown in` Fig. l to 'theopen position shown in Figs. 5 and'6. Each of the cap 45 sections I6 has a pair of arms I'I vwhich are connected to the transverse arms I5 of the bar I2 and'these arms afford a space for the edge of the blade to Vpass'out laterally beneath the cap sections and above the guard fingers.

The pivotal connection between the arms I 5 and the cap sections I6 is shown on alarger scale in Fig. 7 from which it will be noted that the material of the'transverse arms is merelyl forced inwardly to form a trunnion in an opening drilled 55M handle beneath said cross bar, a guard apertured to receive a portion of the cross bar and connected t the nut for movement therewith, and connections between the guard and cap sections for swinging the latter.

6. A safety razor comprising a handle having a reduced threaded end portion, a nut arranged to work up and down thereon, a guard perforated for the passage of the end of the handle and having a swivel connection with the nut whereby the guard may be moved up and down on the handle by rotation of the nut, cap sections supported from the end of the handle above the guard, and operative connections between the guard and cap sections.

7. A safety razor comprising a handle with a threaded end portion having a nut thereon, a guard freely movable upon said end portion and resting upon said nut, a cross bar carried by the end of the handle above said guard, connections between the cross bar and guard to hold the latter against turning, and cap sections arranged to cooperate with the guard.

8. A safety razor comprising a handle having a reduced and threaded end portion, a cross bar mounted in the handle and having down-turned ends, a guard freely movable on the reduced end of the handle and apertured to receive the downturned ends of the cross bar, a nut movable upon the threaded end of the handle beneath the guard, and cap sections hinged to the cross bar.

9. A safety razor comprising a handle having a threaded end, a cross bar carried at a fixed height thereby and having its ends offset downwardly and provided with out-turned arms, a nut rotatable on the threaded handle end, a guard resting upon the nut and movable in the space between 5 said arms, and cap sections carried by said arms.

10. A safety razor comprising cap sections, a guard, and a handle extending freely through the guard and having a cross-bar carried at a fixed height thereon, the cross-bar serving both to carry the cap sections and engage the guard to hold it against turning.

11. A safety razor comprising cap sections, a guard, an apertured blade, and a handle extending freely through the guard and having a crossbar carried at a fixed height thereon, the crossbar being arranged to position the blade by engaging its aperture, to carry the cap sections and to engage and hold the guard against rotation in the razor. 20

12. A safety razor comprising cap sections, a.

guard, a handle extending freely through theV guard and having a cross-bar with transverse arms carried at a fixed height on the handle, a blade apertured to receive the cross-bar and rest upon the guard, and means for raising and lowering the guard, the cross-bar being arranged to support the cap sections and to lift the blade 01T the guard when the guard is moved to its lowermost position.

JOSEPH MUROS.

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