US1728729A - Safety razor - Google Patents

Description

H. J. GAISMAN SAFETY RAZOR Sept. 17, 1929.

Filed July 20, 1927 2 Sheets-Shoot 1 IIAv' 'VIII/IIlI/II/ I VENTOR 14.1%

A'ITORNEY Sept. 17, 1929. GAlSMAN 1,728,729

SAFETY RAZOR Filed July 20. 1927 2 Sheets-Sheet 2 W VIII gig I :iiv irml 4!! F 2 14 INVENTQR ATTORNEY Patented Sept. 17, 1929 fi'l'ATES U l E.

HENRY J. GAISMAN, OF NEXV YORK, N. Y., ASSIGNOR TO AUTGSTROP PATENTS COR- PORATION, OF DOVER, DELAWARE, A CORPORATION OF DELAWARE SAFETY RAZOR Application filed July 20, 1927.

My invention relates to improvements in safety razors wherein a blade holder is pivotally mounted in a frame and is rocked back and forth for strapping a blade edge by means of a roller operatively connected to the blade holder and projecting from the frame in position to engage a surface for causing operation of the blade holder for stropping the blade edge when the razor is reciprocated W along said surface. An example of this class of safety razor is set forth in my application for Letters Patent filed April 14, 1927,

Serial No. 183,686.

An object of my invention is to provide a 13 safety razor of the class specified having a pivotally supported guard for the blade edge, with means to retain the guard in shaving relation to the blade and in a position alongside of the blade holder and the blade with- ;l in the frame, and to retain the blade holder in the last named position, as well as to retain the guard away from the blade so as to permit operation of the latter for stropping its edges.

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

Reference is to be had to the accompany- :3-0 ing drawings forming a part hereof, where- Fig. 1 is a side View of my improved safety razor showing the parts in shaving position;

Fig. 2 is a vertical section showing the :25 the parts in a folded or collapsed position;

Fig. 3 is a side View illustrating the parts in position for stropping the blade edge.

Fig. 4 is a partly sectional front view of the razor substantially on line 4, 4, in Fig. 3;

#19 Fig. 5 is a partly sectional detail view of the parts as in Fig. 2;

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

Fig. 7 is a sectional detail on line 7 7, 1n Fig. 2; I

4 Fig. 8 is a section on line 8, 8, in Fig. 1;

Figs. 9 and 9 are sectional details of the blade holder;

Fig. 10 is a sectional view illustrating a modification, showing the parts in shaving position;

Serial No. 207,035.

Fig. 11 is a similar view, showing the parts in folded or collapsed position;

F ig. 12 is a sectional view showing the guard released from the blade;

Fig. 13 is a view looking from the right hand side of Fig. 11;

Fig. 14 is a detail perspective of the guard member, and

Fig. 15 is a perspective detail of the blade holder retainer of Figs. 10 to 13.

Similar numerals of reference indicate corresponding parts in the several views.

The numeral 1 indicates a frame which may be of any suitable construction, being shown comprising a base 1 and spaced uprights 1 The base is shown provided Witha handle 2 which may be attached thereto in any desired way, such as by screw threads at 3, or by riveting'the end of the stem 2 as in Fig. 10. A blade holder is indicated at 4 adapted to retain a blade 5. Theblade holder is pivotally supported .to rotate or rock between the uprights l of the frame and is shown provided with pivots 6, 7 secured to spaced arms 4 of the blade holder and journaled in the adjacent uprights'l ,(Fig. 4),. The pivot 6 is shown provided with a gear 8 that is in mesh with a gear-9 that .is secured to a roller 10 between and pivoted in the uprights 1*, (Fig. v7) The roller 10 is shown provided with a pivot 10' carrying the gear 9 and with a pivot portion :10. The periphery of roller 10 extends beyond the adjacent portions of the uprights 1 of frame 1 so that said roller may engage a surface 11 along which the razor may be reciprocated, whereby when the roller is rotated the blade holder with the blade will be rocked through the frame, as indicated in Fig. 3.

The blade holder may be of any desired construction. In the form illustrated the blade holder includes a plate-like member 4 against which the blade may rest and from which the arms 4 extend, and a blade retainer 4, the parts 4 and 4" being shown hinged together at 4". The retainer 4 is shown provided with a catch at 4 adapted to engage the adjacent end of member 4 for retaining said parts clamped againstthe blade, (Fig. 9). The blade holder member 4 is shown prodifferent set positions, (Figs. 1, 2 and vided with spaced projections 4 adapted to pass through complemental openings in the blade. Since the projections 4 extend beyond the surface of the blade the member 4" is shown provided with a longitudinal recessed or offset portion 4 adapted to fit over and enclose the projections when the blade is clamped in the blade holder, (Fig. 9). The blade may be applied by separating tl e biade holder parts, as shown in Fi 9, laying the blade against the member 4 with the projections 4 passing through the openings 5' of the blade to retain the blade in proper position, and closing the members together for causing the catch 4 to engage the member 4 with the member 4 pressing against the blade, as indicated in Fig. 9.

At 12 is a guard for a blade edge, which is pivotally supported by and between the uprights 1 of frame 1, pivots at 13 being shown supporting the guard in frame 1, (Fig. 8). The guard is shown provided with an outwardly extending portion 12 located at one side of the frame opposite the blade guard bar 12' and servin as a fin er iece for o aerating the guard. In the form shown in Figs. 1 to 8 the guard member is provided with a curved surface at 12", which may be stamped from the metal of the guard, (Fig. 8) ,adapted to frictionally engage a complemental curved surface 1 on base 1, said surfaces being con.- centric with the axis of rotation of the guard member so that by frictional engagement of said surfaces the guard will be retained in The linger portion 12 of the guard member may be conveniently operated to adjust the guard to different positions, and said finger portion is shown recessed at 12 to receive the handle 2 when the parts are in the position shown in Fig. 2 with the guard folded between the uprights 1 of frame 1. The base 1 is provided with recesses 1 to receive the side members of the finger portion 12 when the latter is folded against the handle, (Figs. 4 and 5).

At 14 is a blade holder retainer shown in angular form, provided with a slot 14 receiving a pin 15 extending from the adjacent upright 1", and pivotally attached to the guard member by a pin 16, (Figs. 2 and 5). The inner or free end of the retainer 14 extends laterally at 14 in position to oppose the blade holder, as indicated in Figs. 2 and 5,

7 when the latter is folded within the frame bethe guard is swung out from the folded position of Fig. 2, as to the stropping position of Fig. 3, the pin 16 will cause the retainer 14 to tilt since it will rotate on the pin 15 and the slot 14 will permit proper movement of the retainer to keep the projection 14" out of the path of the blade holder, so that the latter and the blade may rock through the frame for stropping the blade edge, as in 3. To restore the parts to the position of Fig. 2 the blade holder may be rotated to a position between the uprights 1 and the guard may be operated by pushing the member 12 toward handle 2 to swing the guard into position between the uprights 1", whereupon the pin 16 rill cause the retainer 14 to move back with its projection 14 opposing the blade holder, as in Fig. 2. IV hen the razor is to be used for shaving the guard and the blade may be swung out of. the frame and assembled as indicated in Fig. 1 with the blade rested against the guard, whereupon stops 12' at the ends of the guard will engage the blade holder, projection 4 of the holder will engage roller 10, and the guard will be retained by the fric tional cooperation of the parts 12 and 1, to retain the blade in shaving position.

In the form shown in Figs. to the retainer 14 is pivoted to the adjacent upright 15 so that its projection 14 may oppose the blade holder, (Fig. 13), the inner portion of the retainer being shown curved at 14 to be engaged by a projection 17 carried by the guard member to cause tilting of the retainer. The curved portion 14 of the retainer is so arranged that when the guard is swung out of the frame, as to stropping position, as in Fig. 12, the projection 17 will engage the retainer on one side of its pivot 15 and thereby cause its projection 14" to be moved away from the blade holder 4 so that the latter may be swung through the frame to be engaged by the guard, for shaving position as in Fig. 10, or for stropping as in Fig. 12. I/Vhen the blade holder and guard are to be folded or collapsed the blade holder may be swung to the position as in F ig. 11, whereupon the projection 17 will engage the retainer and move its portion 14 in position to engage the blade holder, as illustrated in Fig. 11. To retain the guard in different set positions the same is shown provided with seceral flat portions 18, in spaced relation, (Fig.14), either of which fiat portions is adapted to be engaged by a spring 19 carried by frame 1. In the example illustrated the spring 19 is shown of flat variety secured to base 1 with its free end adapted to be engaged by a flat portion 18. The reduced end portion 2 of handle 2 is shown extending through base 1 and through spring 19 and riveted over the latter, whereby the handle, the frame and the spring are secured together. The flat portions 18 and a projection 17 are, for convenience of manufacture, formed from a metal piece 18' riveted to the side of the guard member at 20, (Fig. 14). Two of said pieces 18' may be used and secured to the guard member to be engaged by the respective opposite ends of the spring 19, as illustrated in Fig. 13, and only one such piece need be provided having projection 17 for operating retainer 14.

The portion 14 of the retainer extends in such position as to engage the blade holder when the latter and the guard are folded within the frame but without engaging the blade, so that the latter may be free to rotate or rock through the frame without interference, since the blade is of such length and so positioned in the holder 4 that the end of the blade adjacent to the retainer will not engage the latter in any of its positions, (Figs. 5 and 13). When the blade is to be stropped the guard will be moved outwardly and thereupon the retainer will release the blade holder, (Figs. 3 and 12) so that the blade and blade holder will be free to rock. When the roller is placed upon the surface 11 in the position of the parts shown in Fig. 3, and the razor is reciprocated along said surface the blade holder with the blade will be rotated or rocked back and forth to present opposite edges of the blade to the surface for sharpening the edge. Vhen the razor is moved to the right along surface 11 in Fig. 3 one side of the blade edge will be dragged along the strop and at the termination of a stroke or reciprocation the razor will be moved to the left in Fig. 3, whereupon the roller 10 will rotate in such a manner that the gears 9 and 8 will cause the blade holder with the blade to be rotated in the direction of the arrows to swing the blade holder and the blade through frame 1 and present the blade edge against surface 11, as indicated in dotted lines in Fig. 3, and continued movement of the razor in said direction will cause the blade edge to drag on the surface 11 to sharpen the edge. Upon reversal of the movement of the razor along strop or surface 11 the operation of roller 10 with the gears will cause the blade holder and the blade to be swung in the direction reverse to the positions in 3. to the full line position for stropping the blade edge, and so on 1 for each reciprocation of the razor along the surface 11.

Having now described my invention what I claim is 1. A safety razor comprising a frame, a blade holder pivotally carried thereby adapted to swing through the frame. a guard member for the blade pivotally carried by the frame, and a retainer carried by the frame adapted to oppose the blade holder when the '1 latter is folded within the frame.

2. A safety razor as set forth in claim 1, provided with means to retain the guard in set position to keep the retainer out of cooperation with the holder when the guard is out i of the frame.

the retainer opposite the blade holder when the latter and the guard are folded within to be placed in opposition to the blade holder when the latter and the guard are folded within the frame and to be moved away from the blade holder when the guard is swung out of the frame.

5. A safety razor as set forth in claim 4, in I which the frame is provided with a pin and the retainer is provided with a slot receiving said pin to permit movement of the retainer when the guard member is rotated.

6. A safety razor as set forth in claim 4, provided with means cooperative between the frame and the guard to retain the latter in set positions with the retainer in corresponding positions relative to the blade holder.

7. A safety razor as set forth in claim 4. in which the guard member is provided with a curved surface and the frame is provided with a curved surface cooperative with the first named surface for retaining the guard member in set position in the frame.

8. A safety razor comprising a frame, a blade holder pivotally carried thereby adapted to swing through the frame, and a guard member for the blade pivotally carried by the 1 frame to swing within the frame, the guard member having means adapted to engage the blade holder to retain the blade in ,shaving relation to the guard.

9. A safety razor as ,set forth in claim 8,:

provided with means to retain the guard member in set positions.

10. A safety razor comprising a frame, a blade holder pivotally carried thereby adapted to swing through the frame, a guard member for the blade pivotally carried by the frame. and a retainer pivotally carried by the frame and provided with a portion adapted to oppose the holder when the latter is folded within the frame, the guard member being provided with a projection adapted to actuate the retainer to move the latter out of cooperation with the blade holder when the guard is out of the frame and to move the retainer into opposition to the blade holder and keep the retainer opposed to the holder when the guard is within the frame.

11. A safety razor as set forth in claim 10, in which the guard member is provided with a plurality of portions and the frame is provided with a spring cooperative With said portions to retain the guard member in different set positions.

12. A safety razor comprising a frame, a blade holder pivotally carried thereby, and a guard member for the blade pivotally carried by the frame, the guard member having means adapted to engage the blade holder to retain the blade in shaving relation to the guard.

HENRY J. GAISMAN.

Images