US1576510A - Safety razor - Google Patents

Description

March 16 1926.

J. HOLTZMAN SAFETY RAZOR Filed April 18 1922 NVENTOR kman Patented Mar. 16; 1926.

UNITED STATES PATENT OFFICE.

JOI-IN HOLTZMAN, 0F NEW YORK, N. Y., ASSIGNOR. OF ONE-HALF TO ALFRED KRAFFT, OF BROOKLYN, NEW YORK.

SAFETY RAZOR.

Application filed April 18, 1922. Serial No. 555,483.

To 077 yu'lo/n, 'it 12mg/ concern.'

Bc it known that I, J oHN HoL'rzMAN, a citizen of the United States, residing at New York, in the county of New York and State of New York, have invented a new and usecontainer for the safety razor.

One object of the invention is to simplify the construction of the holding means for the blade and the means for adjusting the razor on a fixed guard.

Another object of the invention is the provisional means for reciprocating the razor blade transversely over the stropping means.

Another object is the adaption of the safety razor to a stropping means in a container that serves also as a permanent box or container for the safe-keeping of the razor.

Other objects and improvements will 'be apparent in the following description of the invention which is illustrated in connection with the attached drawings in which:

Figurel is a longitudinal and cross-sectional View of the preferred form of my invention.

Figure 2 is a cross-section taken on line 2-2 of Figure 1.

Figure 3 is a cross-section taken on line 3-3 of Figure 1, and

Figure 4 is a fragmentary side view of the invention as shown in Figure 1.

Referring now`to Figures 1 to 4, the frame and safety guide plate 1, consists of the angular projections 2 and 3. the central portion 4 and the safety guard portion 5, having slots 6 at the guiding edge to form prongs 7 as is usual in safety razors of this type. This frame is riveted to the bracket 8.

" to which is secured a hollow handle 9. In-

side the frame 1 is secured the auxiliary holding frame 10 having the upright portions 11 and 12 and the central portion 13, to which is secured, by means of a screw 14, adjusting rod 15, that lprojects through the hollow handle 9 and which is screwthreaded in the lower end of the handle 9 as shown at 16, and provided with a knob 17. The purpose of this rod will be hereinafter described.

Between the upright portions 11 and l2 are secured the blade holding member 20, to which is secured the blade 21. rl`he blade holder is rotatably mounted on the shaft 22, journalled in portions 11 and 12 and to which is secured also a gear 24, which is meshing with a gear 25 mounted on a shaft 26 also 'ournalled in portions 11 and 12. .On th1s shaft 26 is mounted the sleeve 27, having a slot 28, meshing` with a ca-m 29 on the member 20. Between the members 11 and 12 is also secured the rollers 30 and 31 mounted on corresponding shafts 32 and 33.

a The blade seat or guide members 35 consists of the main portion 36 slidably mounted betweenthe bracket 8 and frame 4 and provided with hooked projections 37 and 38 that serve to hold the blade in operating position against the guard 5. To this seat 1s attached a sprin 40 bearing against the upturned edge 41 o the guard 5.

Ihe adjusting of the blade in proper position for shaving so that the edge of the blade is in the proper relation to the prongs 7 and held securely by means of the projections 37 and 38 will now be described. The blade is pressed down in the position shown in Figure 4, first by pressing the member 36 towards the right against the tension of spring 40 until the edge of the blade rests on the prongs 7 and then rc leased so that the hooks on the projections 37 and 38 grip the outer edges of the blade; then the knob 17 is turned to the right orleft to raise or lower the frame 10, which action adjusts the blade holder up or down. 'lhc result of this action is that the edge of the blade, while held firmly against the prongs 7, will be adjustedto the desired distance from the outer edge of the prongs to meet the requirements of the user. Thus it will be seen that a very close adjustment of the edge-of the blade in relation to the prongs can be secured by merely the turning of the knob 17. This adjustment is one of the features forming an important part of my invention.

When it is desired to strop the blade it is simply placed as shown in Figure 1 and the strop 43 is inserted below the roller 27 and above the rollers 30 and 31 as shown in Figure 1. The movement of the razor forth and back over the strop will now rotate the roller 27 and through the gears 25 and 2l and rotate or place opposite edges of the blade alternately in contact with the strop in a well known manner. My invention however provides means for reciprocating the blade transversely over the strop to secure an even and sharp edge on the blade. This reciprocating movement of the blade is secured by the rotation of the roller 27, by means of the diagonal slot 28 engaging the cam 29. The cam 29 is of such a shape and length that it is constantly in contact with the slot no matter which side. of the blade is in contact with the strop.

Thus I have here an automatic safety razor that combines several useful in'lprovements, namely a means for adjusting the edgeof the blade against the stationary guard that can not therefore be disturbed or moved out of its adjusted position in relation to-the blade during the shaving operation; in combination with means for stropping the blade in such a lnanner as to compensate for any unevenness in the strop itself or in the edge of the blade and thereby securing a most eticient shaving tool embodying the improved principles of perfect adjustment of the blade and the securing of the smooth and sharp edge under all eireumstances.

What I claim is:

1. In a safety razor the combination of a blade with a holder therefor, a guard for the blade, a main framel to which the guard is permanently attached, a handle attached to said frame, an auxiliary frame to which the holder is attached and means for adjusting the relation of the frames to each other to regulate the relation of the edge of the blade to the edge of the guard including a screw rotatably mounted in said handle and secured to said auxiliary frame.

2. In a safetyvrazor the combination of a blade with a holder for said blade, a guard for said blade, a spring pressed means for holding the blade against the guard, a main frame forthe guard, an auxiliary frame for the holder, a handle attached to the main frame and an auxiliary handle screwthreaded in said first mentioned handle attached to the auxiliary frame so that the rotation of the auxiliary handle in said main `handle will change the relation of the auxiliary frame to the main frame and the guard to regulate the relation of the edge of the blade to the edge of the guard.

3. In 'a safety razor the combination of a blade with a holder therefor, a guard for the blade, a frame to which the guard is permanently attached, a spring pressed means for holding the blade against the guard mounted 011 said frame, an auxiliary frame for the holder, means for adjusting the relation of the two frames to each other to regulate the relation of the edge of the blade to that of the guard, a c roller geared to the holder mounted in the auxiliary fraaie, two

other rollers mounted on said frame, said rollers being so arranged in relation to cach other that the razor stropping ribbon or band can be inserted below the first mentioned roller and above the other rollers for the lstropping of the blade substantially as set forth.

4. In a safety razor the combination of a blade, a blade holder rotatably mounted on a frame, a fixed guard-member having prongs, a guide member slidably mounted on said lixed guard member, means for adjusting the blade-holding frame with the blade relative to the seat or guide member, and means for holding thc adjusted blade in operating position against said guard member.

In a safety razor the combination of a blade, a blade holder rotatably mounted on a frame, a fixed safety guard plate, a guide member slidably mounted relative to the fixed guard plate and provided with hooked projections adapted to hold the blade against the prongs of the guard plate, a spring attached to the said guide member adapted to hold the blade in adjusted position against the prongs of the guard plate, and means for adjusting the blade on the guard plate consisting in a screw spindle contained in the stem of the razor and carrying the blade-holding frame.

6. In a safety razor of the character described the combination of a blade, a holder for the blade rotatably mounted on a frame, a fixed safety guard plate having prongs, a spring pressed means mounted on the guard plate for holding the blade against the prongs of the guard plate, an auxiliary frame for the holder, means contained inV the stem of the razor for adjusting the relation of the two frames to each other to regulate the relation and angle of the edge of the blade to the guard plate, a roller geared to the holder mounted on the auxiliary frame, two curved members extending upwardly under said roller, said curved members and said roller being so arranged in relation to each other that the razor stropping ribbon or belt can be inserted between the firstmentioned roller and. the second mentioned extension for stropping the blade.

7. In a safety razor the combination of a lrazor blade, a rotatable blade holder, a fixed guard member for the blade, a frame to which the guard member is permanently attached, a spring pressed means for holding the blade against the guard, an auxiliary .frame in which the blade holder is rotatably mounted, means for adjusting the relation of the two frames to each other, a roller geared to the holder and mounted in the auxiliar)v frame, means adapted to cooperate with said roller to hold a stropping belt in engagement with said roller, and means on said blade holder land roller for transversely reciprocating the razor on the strop while in engagement with the latter.

8. ln a safety razor the combination of a razor blade, a blade holder, a fixed guard member for the blade, a frame on which the guard member is fixed, a spring pressed means for the blade against the guard, an auxiliary frame in which the blade holder is rotatably mounted, means connected with the stem ot' the razor for adjusting the relation of the two frames to each other, a roller geared to the holder and mounted in the auxiliary frame, means adapted to cooperate with said roller for ,frictionally holding a stropping belt, and a cam and groove connection between said roller and the blade holder for transversely reciprocating 'the razor blade on the strop, while stropping the blade.

9. In a safety razor the combination of a frame, blade holding means pivot-ally mounted on the frame, a blade supported on said holding means, a handle for said frame,

25 a guard in the razor and rotatable threaded means associated with the handle foreffecting a transverse adjustment of the blade relative to the guard.

10. In a safety razor the combination of a frame, blade holding means 011 said trame, a guard plate, a guide member slidably mounted in the razor with hooked projections adapted to hold a blade against the guard, a spring adjacent to said guide member for holding the blade in adjusted position against the guard and threaded lmeans for transversely ladjusting the blade and guard relative to each other.

1l. In a safety razor the combination of a frame, a blade holder pivoted to the frame, a blade supported on the holder, a second frame in slidable connection with the first frame, a hollow handle with one end secured to the second frame, a screw spindle extending into and through the other end of the handle, to maintain the razor blade in operative position and a knob for said spindle.

In Witness whereof, I hereunto subscribe my name this 10th day of April, 1922.

' JOHN HOLTZMAN.

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