US2319488A - Combined razor and sharpening device - Google Patents

Description

Y 3 1 R. L. BURCHETT 2,319,488 r COMBINED RAZOR AND SHARPENING DEVICE.

Filed Oct. 17, 1941 I INVENTOR RAY L. BURCHETT BY 1 M,M@M

ATTORNEYS shown in Figs. 1 and 2;

Patented May 18, 1943 COMBINED RAZOKAND SHARPENING DEVICE Ray L. Burchett, Newark, N. J., assignor to Art Metal Works, Inc., a corporation of'New Jer- Sey Application October 17, 1941, Serial No. 415,351

4 Claims. (01. 30-36) My invention relates to a combined razor and sharpening. device. I

My invention has particular reference to a combined razor and sharpening device embodying novel means for holding the razor blade either in shaving or sharpening position.

My invention relates more particularly to a combined razor and sharpening device wherein the razor blade is of the single-edge type, means being provided for causing either side edge of the razor blade to engage a sharpening device or to be located in shaving position at will.

My invention has further reference to a novel arrangement for varying the inclination of a razor blade when in shaving position.

Still further, my invention relates to a novel and advantageous arrangement for mounting the sharpening roller forming part of a device of the character stated. 7

Various other objects, advantage and features of my invention will'become apparent from the following detailed description.

My invention resides in the combined razor and sharpening device, features and combinations of the character hereinafter described and "claimed.

I For an understanding o'f my invention and for an illustration of one of the forms thereof, ref

' erence is to be hadto the'acc'ompanying drawing,

in which:

Figure 1 is a rear elevational view, partly in section, showing the razor" arrangement of my invention; a

Fig; 2 isan'side elevatonal view of the razor arrangement shown in Fig. 1;

- Fig. 3 is a plan view of the razor arrangement Fig.- 4 is a vertical sectional view, partly in elevation, taken on-the line 44 of Fig. 1 look ing in the direction-oi the arrows and with the razor blade occupying adiiferent position; and Fig. 5 is an enlarged vertical sectional view,

partly in elevation, taken on the line 55 of Fig. 2 looking in the direction of the arrows.

Referring to Figs. 1 and 2, i represents a tubular member carrying a cylindrical member 2 which comprises a circular gripping section 3 having an exterior knurled surface. A horizontal member 4, Fig. 4, is formed'either integrally with or fixed to the tubular member I so as to e'xtend'in opposite directions therefrom. The member 4 has secured to the ends thereof the respective plates 5, 5 which are. disposed in parallel relation. Between the plates 5 and 5. the

member 4 supports 'a pair of spaced plate mem- .form a transverse channel 'utilizable as hereinafter described.

Extending freely through the tubular member I is a rod 1 to which is secured a handle sleeve 8 freely slidable on the exterior surface of said tubular member I, the outer surface of the handle 8 preferably being knurled as shown. A spring 9 coiled around the rod 1 applies opposite forces to the tubular member I and handle sleeve 8 tending to separate them.

The upper end of the rod 1 carries a U-shaped yoke In which, normally, is positioned in the channel formed by the plate members 6, 6. The outer ends Illa of the yoke arms carry a fixed axle pin H which is disposed at right angles to the rod I, the pin ll pivotally supporting the razor blade 12 which is mounted between the plates'5, 5 and which is suitably recessed as at 12a for the reception of the ends Illa of the respective yoke arms.

The blade l2,when'in shaving position, has its shaving edge disposed adjacent a guard l3 fixed between the plates 5 and 5, the guard l3 being provided with teeth |3a which face the razor blade edge. Mounted for oscillatory movement in the plates 5, 5 is a transverse member I4 provided with cam sections 14a coactable with the lower surface of the blade l2 adjacent the {cutting edge thereof, Fig. 4. As shown in Figs.

2 and 3, the aforesaid transverse member l4 ex- 7 may be moved as desired to thereby raise or lower the cam sections I la of the transverse member l4 whereby the cutting edge of the blade i2 is causedto take a desired cutting position. The free end of the lever l5coacts frictionally with the arcuate member l6 tothereby retainthe transverse member l4 and its cam sections Ma. in the desired adjusted position.

In accordance with the invention, each of the plates 5, 5 carries a tubular housing 18 and these housings l8 are disposed in transverse alinement with each other. The outside wall surface of each of the housings l81s provided with an elongated slot l8a, the slots lBa being disposed in are elongated in a direction extending substan-' tially at right angles to the plane of the blade I2 when the latter is in sharpening position. Therefore, as hereinafter more fully described, the roller I9 is free to automatically take a more effective sharpening position than would be the case were the roller I9 rotatable on a fixed longitudinal axis.

As illustrated on the drawing, one of the plates carries a pair of inwardly extending pins 22,

22a while the other plate 5 carries another pair of inwardly extending pins 23, 23a. The arrangement is such that the pins 22 and 23 on the one hand, and the pins 22a and 23a on the other hand are transversely alined in pairs, these respective pairs of pins being disposed in substantially symmetrical relation on opposite sides of the axle pin II when the latter is positioned as shown in Fig. 4.

The razor blade I2, on each side thereof, is provided with a recess I2b, these recesses being transversely alined and so arranged that, when said razor blade I2 is in engagement with the sharpening roller I9, the pins 22a, 230. are received within the respective recesses I21) and the rear surface of the razor blade I2 is in engagement with the pins 22, 23 whereas, when the razor blade I2 is in cutting position, the pins 22, 23 are received within the respective recesses I21) and the rear surface of said razor blade I2 is in engagement with the pins 22a,23a.

In Fig. 4, the razor blade I2 is shown as disposed in its shaving position. When thus disposed, the spring 9 draws the yoke I9 downwardly toward the member 4 which forms the yoke II! on the member 4 by reason of the motion-limiting effect on the razor blade I 2 produced, first, by the pins 22a and 23a which are engaged by the rear surface of the razor blade -I2 and, second, by the cam sections I la of the transverse member I4 which are engaged by the front surface'of the razor blade I2.

As will readily be understood from a consideration of Fig. 4, the spring 9, acting through the yoke Ill, draws the rear surface of the razor blade I2 into engagement with the pins 220., 23a whereby a biasing effect is applied to said razor blade I2 tending to rotate the same in a clockwise direction, Fig. 4, whereby the outer edge thereof is positively held in shaving position, i. e., in engagement with the cam sections Ida which serve as a means for positioning the edge of the razor blade in'shaving position. At this time, the pins 22, 23 are positioned within the respective. recesses I2b of the razor blade I2 in a non-functional manner.

When it becomes desirable to change the shaving position of the razor blade I2, the lever I5 may be moved in one direction or the other to thereby move the transverse member I4 bottom of the channel defined by the plate memabout its longitudinal axis with resultant change in position of the cam sections Ma and change in inclination of the razor blade I2.

When the razor blade I2 is to be sharpened, the yoke I9 is elevated, against the action of the spring 9, by effecting relative movement toward each other of the circular gripping section 3 and the handle sleeve 8. After the yoke I 0 has been elevated above the plate members 6 and 6, the handle sleeve 8 may be rotated on and with respect to the tubular member I through an angle of degrees while holding the circular gripping section 3 stationary. Thereupon, pressure upon the handle sleeve 8 may be released to permit downward movement of the yoke I0 so that the latter descends between the plate members 6, 6 and the cutting edge of the razor blade I2 comes into engagement with the shaipening roller I9 which may be actuated in suitable manner to thereby effect the desired sharpening action.

When the razor blade I2 is thus disposed in sharpening position, Figs. 1, 2 and 3, the spring 9 draws the yoke I9 downwardly toward the member 4. However, the spring 9 is prevented from seating the yoke I9 on the member '4 by reason of the motion-limiting effect on the razor blade I2 produced, first, by the pins 22 and 23 which are engaged by the rear surface of the razor blade I2 and, second, by the surface of the shapening roller I9.

In generally the same manner as previously described, the spring 9, acting through the yoke l0, draws the rear surface of the razor blade I2 into engagement with the pins 22, 23 whereby a biasing effect is applied to said razor blade I2 tending to rotate the same in a clockwise direction, Fig. 2, whereby the cutting edge thereof is positively held in sharpening position, i. e., in engagement with the sharpening roller I9. At this time, the pins 220., 23a are positioned within the respective recesses I21) of the razor blade I2 in a non-functional manner.

The construction comprising the elongated slots 5a and I8a together with the biasing arrangements for the pintles I9a permits the sharpening roller I9 to take the position which the razor blade I2 tends to impose thereon when the latter isheld in sharpening position under the influence of the spring 9. Thus, by reference to Fig. 5 and assuming that the pintles I9a have been moved upwardly to the ends of the respective slots provided therefor, the line L may be taken as designating the longitudinal axis of the sharpening roller I9 and its pintles I9a. If the sharpening roller I9 should be so mounted that this longitudinal axis is incapable of adjustment it would be necessary for the longitudinal axis of the axle pin II, the extreme end of the cutting edge of the razor blade I2 and said longitudinal axis L to be disposed exactly in parallel relation if said cutting edge last named is to effectively engage the sharpening roller I9 throughout the length thereof. This parallel relation is difiicult to obtain in ordinary manufacturing operations.

As indicated in Fig. 5, it may be assumed that the longitudinal axis of the axle pin II or the extreme cutting edge of the razor blade I2 is parallel to a line LI instead of the line L. Under these circumstances, if the longitudinal axis of the sharpening roller I9 and its pintles I9a were fixed, there would be a gap between the end of :the razor cutting edge at the right, Fig. 5, and the roller I9, and this gap would extend from If so,

' to sharpen the razor blade I2, the yoke I is elevated above the plate members 6, 6 and the handle sleeve 8 is rotated through an angle of 180 degrees while holding the circular gripping section 3 stationary. Obviously, an operation the reverse of that described is performed when it Becomes desirable to move the razor blade [2 from the sharpening position to the shaving position.

A feature of the invention resides in the fact that the described mechanism is adapted for readily sharpening both sides of the blade [2. Thus, after one side of said blade l2 has been sharpened as described above, the yoke I0 may be elevated and the blade l2 rotated on its axle pin ll through an angle of more than 180 degrees to bring the sharpened blade surface uppermost. Thereupon, through an angle of 180 degrees and reseated in the channel defined by the plate members 6, 6. This brings the non-sharpened surface of the blade [2 into engagement with the sharpening roller I9. 7

If desired, the plate members 6, 6 may be pro vided, respectively, with the alined notches 6a. the yoke I0 may be elevated, then rotated through an angle of 90 degrees and then seated in the notches 6a where it is held by action of the spring 9. The blade l2 may then be rotated on its axle pin 1 I through an angle of more than 180 degrees to bring the sharpened blade surface uppermost. Thereupon, the yoke Ill may be elevated from the notches 6a, moved further through another angle of 90 degrees and reseated in the channel defined by said plate members 6, 6. This brings the non-sharpened surface of the blade l2 into sharpening position.

While the invention has been described with r respect to a certain particular preferred example which gives satisfactory results, it will be understood by those skilled in the art after understanding the invention, that various changes and modifications may be made without departing from the spirit and scope of the invention and it is intended therefore in the appended claims to cover all such changes and modifications.

What is claimed as new and desired to be secured by Letters Patent is:

1. In a razor, a frame, means for pivotally mounting a razor blade for movement with respect to said frame, a guard secured to said frame, and means for moving said razor blade on its pivotal axis to vary the angle of inclination thereof and to change the position of the shaving edge with respect to said guard,,said last named means comprising a cam bar having sections contacting with the lower surface of said blade, said cam bar extending throughout substantially the entire length of said blade.

2. In a razor, a frame, means for pivotally the yoke I0 is rotated mounting a razor blade for movement with respect to said frame, a guard secured to said frame, means for moving said razor blade on its pivotal axis to vary the angle of inclination thereof and to change the position of the shaving edge with respect to said guard, said last named means comprising a cam bar having sections contacting with the lower surface of said blade, said cam bar extending throughout substantially the entire length of said blade, and means for biasing the razor blade into engagement with said cam bar.

3. In a razor, a tubular support, a frame carried at one end thereof, sharpening means and positioning means carried by said frame, a rod structure slidable in said tubular support, a support carried by said rod structure for pivotally mounting a razor blade of the single edge type, a spring effective between said rod structure and said tubular support for maintaining said razor blade in shaving position, the rod structure and the support for said razor blade being movable against the action of said spring to a position wherein the razor blade and its support clears said frame whereupon said rod structure may be rotated to move the razor blade from shaving position to sharpening position, means independent of said sharpening means and said positioning means for engaging the razor blade when in either of said positions for biasing it either to shaving position or sharpening position, the tubular support and the rod structure being incapable, throughout the length thereof, of preventing rotatable movement of said rod structure as specified, and means for positively retaining said rod structure and the support carried thereby in different respective positions wherein the razor blade occupies either its shaving position or its sharpening position.

4. In a razor, a tubular support, a frame carried at one end thereof, sharpening means and positioning means carried by said frame, a rod structure slidable in said tubular support, a support carried .by said rod structure for pivotally mounting a razor blade of the single edge type,

a spring effective between said rod structure and said tubular support for maintaining said razor blade in shaving position, the rod structure and the support for said razor blade being movable against the action of said spring to a position wherein the razor blade and its support clears said frame whereupon said rod structure may be rotated to move the razor blade from shaving position to sharpening position, means independent of said sharpening means and said positioning means for engaging the razor blade when in either of said positions for biasing it either to shaving position or sharpening position, the tu bular support and the rod structure being incapable, throughout the length thereof, of preventing rotatable movement of said rod structure as specified, and means for positively retaining said rod structure and the support carriedthereby in different respective positions wherein the razor blade occupies either its shaving position or its sharpening position, said last named means comprising a pocket formed in said frame, a part of the support carried by said rod structure being received in said pocket when said razor blade occupies either of said positions.

RAY L. BURCHETT.

Images