US1679670A

US1679670A - Safety razor

Info

Publication number: US1679670A
Application number: US59401A
Authority: US
Inventors: King John Laurence
Original assignee: REEALAXION RAZOR Co Inc
Current assignee: REEALAXION RAZOR Co Inc; REEALAXION RAZOR COMPANY Inc
Priority date: 1925-09-29
Filing date: 1925-09-29
Publication date: 1928-08-07
Anticipated expiration: 1945-08-07

Description

Aug. 7, 1928.

J. L. KING SAFETY RAZOR Filed Sept. 29, 1925 1 0 lr l u i 0 800 00010ll0finu00w 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 00000 00 00 0 0 0 0 0 v 0 0 0 00 0 0 0 0 0 0 .0 0 0 0 0 0 0 0 0 10 .00000.0 00 0 0 .0 00 .\0.0.0 0 0 0 0 .0 0 0 .0 .0 0 0 000. 0 0 0 0 0 010| 0 0v 0 0fl 0 0 000 0 H 0W 00 00I 0 Patented Aug. 7, 1928.

UNITED STATES PATENT OFFICE.

JOHN LAURENCE KING, 0]? NEW YORK, N. Y., ASSIGNOR TO REEALAXION RAZOR COI- PAN Y, INCORPORATED, A CORPORATION OF NEW YORK.

SAFETY nazoza.

Application filed September 2 9, 1925. Serial No. 59,401.

This invention relates to safety razors and more particularly to such a device employing a longitudinally reciprocable blade.

An import-ant object of the lnvention is to provide a device of the above mentioned character provided with means for causlng reciprocation of the blade while the latter is in operation to cause a shearing cut whereby the shaving operation may be more easily and efficiently carried out.

A further object of the invention is to provide novel blade reciprocating means comprising a roller provided with a groove surrounding the roller intermediate its ends and arranged at an angle to a plane transverse to the axis of the roller, blade actuating means being provided including a pin adapted to be arranged in said groove to cause reciprocation of the blade as the roller is rotated.

A still further object is to provide a device of. the above mentioned character pro vided with novel means for supporting the roller to permit rotation thereof.

A still further object is to provide a razor blade adapted for use in connection with the actuating means whereby either a coarse or close shave may be had.

A still further object is to provide a razor structure of the above mentioned character employing an actuating roller for imparting a reciprocating motion to the blade and a blade guard, the guard and roller being so arranged that when these elements contact with the slrin of the user a proper shaving angle of the blade is provided.

Other objects and advantages of the invention will become apparent during the course of the following description.

In the drawings I have shown one embodiment of the invention. In this showing:

Figure 1 is a perspective View of the assembled razor,

Figure 2 is a central longitudinal sectional view through the razor, parts being shown in elevation,

Figure 3 is a section on we 2,

Figure 4 is a similar view on line 4--4 of Figure 2,

Figure 5 is a face view of the blade,

Figure 6 is a face view of the guard and associated elements, 1

line 3-3 of Fig- Figure 7 is a detail perspective view of the guiding plate, and,

Figure 8 is a similar view of the supportmg plate.

Referring to the drawings, the numeral 10 designates a supporting plate shown in detailun Figure 8 of the drawings. This plate is provided on its under side with a central boss 11 having a threaded opening 12 therethrough to receive the threaded end 13 of a suitable handle 14. The plate is provided on opposite sides of the opening with elongated openings 15 for a purpose to be descrlbed. The plate is provided at opposlte ends wlth integral upturned lips 16 preferably stamped from the metal of the plate to form a guide for the blade, as will be described. The plate 10 is further provided between the openings 15 and lips 16 with relatively small rivet receiving openings 17.

A guard plate 18 is arranged against the upper face of the supporting plate as clearly shown in Figures 2, 3 and 4. Rivets 19 pass through openings in the guard and through the openings 17 whereby the guard and supporting plate may be secured together. The guard is provided in opposite ends wlth notches 20 through which the lips 16 extend. As shown in Figure 2, the lips are slightly longer than the thickness of the guard plate wherebythey project u wardl beyond the upper face of the lattdi'. Th1 guard 1s prov1ded at opposite edges with guard fingers 21 each of which is shaped as shown in detail in Figures 3 and 4. From,

the main body of the guard plate the fingers curve downwardly and then upwardly, the outer extremities of the fingers again being curved" downwardly as shown. The guard plate is provided with a central elongated slot 22 and an actuating plate 23 is mounted to reciprocate in this slot. As shown, the actuating plate is substantially equal in w1dth to the slot 22 but is somewhat shorter to permit of a reciprocating motion. Screws 24 pass through the guiding plate 23 near its ends. elongated openings 15 and are provided at their lower ends with heads 25 adapted to slide against the lower face of the supporting plate 10. It will be obvious that the screws 24 retain the plate 23 in the slot'22 to permit reciprocation of the plate 23.

These screws extend through the The plate 18 is provided at one end with spaced ears 26 which are curved to receive a hinge pin 27 as shown in Figures 1 and 2. A clamping plate 28 is arranged above and spaced from the guard plate, and the clamp is provided at one end with an ear 29 curved about the pin 27 whereby the clamp will be pivotally connected at one end to the guard plate. The clamp is further provided at its opposite end with a curved lip 30 which is adapted to engage against the adjacent lip 16 to maintain the clamp in closed position. The lip 16 referred to may be slightly undercut to more efficiently cooperate with the lip 30 to maintain the clamp in operative position as -'will be obvious. The clamp is pro vided with an elongated slot 31 and the metal of the clamp at each end of the slot is stamped upwardly to provide ears 32 as shown in detail in Figures 1 and 2. The

' cars 32 are apertured to receive small trunnions 33 preferably formed integral with an actuating roller 34. As shown in Figures 3 and 4 the roller 34 is mounted partially within the slot 31 and is provided intermediate its ends with a surrounding groove 35. The groove 35 is inclined with respect to a plane at right angles to the ax is ofthe roller and is adpated to receive a pin 36 preferably formed integral with the guiding plate 23 and extending upwardly therefrom.

In Figure 5 of the drawings l have shown in detail the form of blade which it is preferred to use in connection with the other elements of the razor. As shown, the blade comprises a body portion 3? having cutting edges 38 at opposite sides. The blade is provided centrally of its length with a substant-ially circular opening 39 through which the pin 36 is adapted to extend, and is further provided in its ends with longitudinal notches 40 adapted to receive the lips 16 of the supporting plate. The broken line 41 in Figure 5 indicates the longitudinal center of the plate and it will be apparent that the opening 39 and notches 40 are arranged slightly to one side of this center line for a purpose to be described.

The operation of the device is as follows:

The guiding plate 23 is placed in the slot 22 and the screws 24 are applied from the under side of the supporting plate to maintain the guiding plate in position, as will be apparent. The

plates

10 and 18 were previously assembled and are held together permanently by the rivets 19. The guard 28 is opened by releasing the latch 30 and the blade is placed in position with the lips 16 arranged ii. the notches 40 and the pin36 in the circular opening 39. The guard 28 is then closed and the latch 30 snapped in position, as shown in Figure 2, with the pin 36 arranged in the slot 35. The device is then ready for operation. The roller 34 is preferably slightly roughened in actual practice to provide a good engaging surface to permit it to be properly revolved. The razor is used in the usual manner being moved in a line substantially at right angles to the line of the cutting edge of the blade, while the roller 34 contacts with the skin. The contact between the roller and the skin causes the former to revolve and the arrangement of the slot 35 causes the pin 36 to reciprocate. This action, of course, reciprocates the guiding plate within the slot 22, and since the pin 36 is arranged in the opening 39 of the blade, it will be apparent that the latter also will be reciprocated. The arrangement of the lips 16 within the notches 40 maintains the blade in its proper position, as will be apparent, and in operation, reciprocation of the blade causes an effective shearing out to be performed, thus allowing the "beard to be shaved without pulling the hair. As previously stated, the opening '39 and notches 40 are arranged slightly'to one side of the longitudinal cen ter of the blade and since the other elements of the device such as the roller 34, pin 36, plate 23 and the guard are centered, it will be apparent that one edge of the blade will project outwardly over the guard lingers a slightly greater distance than the other edge. Thus it will be apparent that a coarse or close shave may be obtained according to the side of the razor employed. It has been found that the arrangement of the roller 34 in proximity to the blade, as shown in Figures 2 and 4, provides the proper angle for shaving when the device is operated with the guard fingers and roller in contact with the skin. It also has been found that the peculiar curvature of the guard fingers, as shown in Figures 3 and 4, improves the shaving action. While the

plates

10 and 18 have been shown as separate pieces, it will be ob vious that they may be formed as a single piece by die casting or the like, if desireda Attention is invited to the fact that the upper faces of the

plates

18 and 23 are flush and accordingly the pin 36 engages the blade substantially in a line with the surface of the guard upon which it rests, thus providing a more effective action, inasmuch as there is no tendency of the blade to warp and bind between the clamp 28 and the guard plate 18.

It is to be understood that the form of the invention herewith'shown and described is to be taken as a preferred example of the same and that various changes in the shape, size and arrangement of parts may be resorted to without departing from the spirit of the invention or the scope of the subjoined claims.

I claim:

1. A safety razor comprising a guard having a slot therein, an actuating member slidably mounted in said slot and provided with an upstanding finger, a blade mounted on said aid and rovided with an o ening through iw vhich said finger extends, a clamp arranged above said ard, a roller rotatably supported by said 0 amp and provided intermediate its ends with a surroundin slot having different ortions ofiset longitudinally of said roll dr, said finger being arranged in the slot in said roller.

-2. A device constructed in accordance with claim 1 wherein said blade is provided with a pair of parallel cutting edges rojecting beyond the opposite edges of said c amp, an wherein the finger carried by said actuating member is arranged centrally of said clam the opening in said blade through whic said finger extends being offset from the longitudinal center of the blade. v

3. A safety razor comprising a support including a guard, a lip arranged centrally of each end of said support and proiecting from the upper face thereof, said support being provided with a central longitu inal slot, an actuating plate arranged in said slot and adapted to reciprocate longitudinally therein, said actuating plate being provided with an upstanding p1n arranged in alinement with said lips, a blade arranged on said support, said blade being provided in its ends with notches slidably receiving said lips and being further provided intermediate its ends with an opening receiving said pin, the opening and notches in said blade being arranged slightly to one side of its longitudinal center, a clamp arranged over said blade, said clamp being narrower than said blade and centered over said support, and being provided with an elon ated slot, and a roller rotatably supporte by said clamp and arranged in said elongated slot, said roller being provided with a surrounding slot having portions ofiset longitudinally of the roller, the upper end of said pin being arranged in said slot.

4. A device constructed in accordance with claim 3 wherein said support comprises a substantially rectangular supporting plate provided at its ends with said upturned lips, and a guard plate secured against the upper'face of said supporting plate, said longitudinal slot being formed in said guard plate.

5. A device constructed in accordance with claim 3 wherein said support comprises a supporting plate provided atits ends with said upturned lips, and a guard plate secured against the upper face of said supporting plate, said lon itudinal slot being forme in said guard p ate, and wherein said clamp is provided with integral lips arranged at the ends of said elongated slot, said last named lips being provided with bearing openings, said roller being provided at its ends with trunnions journalled in said'bearing openings. p

6. safety razor comprising a supporting plate provided at its ends with central upstanding lips, a guard plate secured against the upper face of said supporting plate, said lips projecting upwardly beyond the upper face of said guard plate, said guard plate being provided with a central longitudinal slot arranged in alinement with said lips, an actuating plate arranged in said slot and adapted to reciprocate longitudinally in said slot, said actuating plate being provided with a central upstanding pin, a blade arranged on said guard late and provided in its end with notches s idably receiving said lips, said blade being further provided centrally thereof with an opening receiving said pin, a clamp arranged over said blade,

said clamp being provided with an elongated slot, a roller rotatably supported by said clamp and arranged in said slot, said roller being provided with a surrounding groove having portions offset longitudinally of the roller, the upper end of said pin being arranged in said groove, co-acting cars carried by said clamp and said supporting plate at one end thereof, a hinge pin connecting said ears, and an ear carried by the opposite end of said clamp and adapted to engage said supporting. plate to maintain said clamp in closed position.

In testimony whereof I aflix my si 1 JOHN LAURENCE ature.