US1766398A

US1766398A - Safety razor

Info

Publication number: US1766398A
Application number: US269104A
Authority: US
Inventors: Muros Joseph
Original assignee: FREDERICK E PERRY
Current assignee: FREDERICK E PERRY
Priority date: 1928-04-11
Filing date: 1928-04-11
Publication date: 1930-06-24
Anticipated expiration: 1947-06-24

Description

june 24, 193 1).

J.'MURO5 v SAFETY RAZOR Filed April 11, 1928 INVENTOR J M ATTORNE Patented June 24,1930

es PATEN'I; OFFICE JOSEPH EUROS, OF NEW YORK, N. Y., ASSIGNOR T0 FREDERICK roan, N. Y.

SAFETY Razor.

Application filed April 11,

The present invention relates to improvements in safety razors, and more particularly to a magazine razor of the type which employs bladesin stacked relation and feeds them successively to shaving position, the blade fed to shaving position ejecting at the same time the used blade from the blade holder. As far as known, this type of razors has heretofore been so constructed that, in shaving, the handle thereof must be held perpendicularly to the face of the user. While the action of the razor is in no way influenced by such position, it has been found that it necessitates a position of the hand which is exceedingly tiresome. Moreover, razors of this type have heretofore been so designed that the relative position of the razor guard and the cutting edge of the blade cannot be varied. Consequently no provision is made for shaving more or less closely.

- The main object of the present invention is to provide a safety razor of the type mentioned, wherein the guard is so positioned on the blade holder that the razor handle may be held at an angle to the face, thereby permitting shaving with more comfort and case than with the devices of this type heretofore-in use.

Another object is to so design the device that the relative position of the guard and the cutting edge of the razor may be adjusted according to the requirements. A further object of the invention is to so design the adjusting means that the construction is in no way rendered more complicated than in the devices heretofore in use.

A still further object of the invention is to embody the adjusting means in the handle of the razor by either rigidly attaching the same thereto or by making the same an. integral part thereof, thereby preventing the same from getting out of order or from being thrown out of gear.

A still further object of the invention is to provide an improved razor of the'character mentioned which is simple in construction, ef-

ficient in operation, durable'in use and capa-.

ble of manufacture on a commercial scale, or,

in other words, one which is-not so diflicult 1928. Serial No. 269,104.

to make as to be beyond the reasonable cost of such a contrivance.

With these and other objects in view, which will more fully appear as the nature of the invention is better understood, the same consists in the combination, arrangement and PERRY, or Nnw construction of parts hereinafter described, I

pointed out in the appended claims and illustrated in the accompanying drawings, it being understood that many changes may be madein the size and proportion of the several parts and details of construction withinthe scope of the appended claims, without departingfrom the spirit or sacrificing any of the advantages of the invention.

One of the many possible embodiments of the invention is illustrated in the accompanying drawings, in which Figure 1 is a front elevation of a razor constructed in accordance with the present invention;.Fig. 2 is a section taken on line 22 of Fig. 1; Fig. 3 is a section taken on line 3-3 of Fig. 2; Fig. 4 is a front elevation of the upper end of the razor handle; and Figs. 5 to 7, inclusive, are sections taken in their order on lines 55, 66 and 77 of Fig. 4, showing diagrammatically a portion of the blade support and guard, and also showing the several positions of the razor blade in relation to the said handle.

In the drawings, the numearl 10 indicates the handle of the razor, the same being hollow and adapted to receive a stack of razor blades llwhich may be fed in succession, as required, onto a blade holder 12. This holder is-in the form of an oblong body having a longitudinal slot 13, into which is extended a post 14, the latter rising from the handle. The connection between the blade holder and the said post is made by a pivot pm 15, the holder being adapted to swing, in the direction of the arrow shown in Fig. 1 of the drawings, around the said pivot pin from the position shown in Figs. 1 to 3, nclusive, of the drawings, into a position in which it forms a continuation of the handle 10. The holder has a slanting end face 16, fitting the slanting head face 17 of the handle, the said two faces being in'abutment when the said holder is turned 90 around the pivot 25 latter.

pin 15 from the position shown in Figs. 1 to 3, inclusive, of the drawings. The purpose of this arrangement will be described hereinafter. The holder is provided with a blade supporting surface 18, above which rises a ledge 19. Against this ledge the rear edge 20 of the blade is adapted to abut, as will more fully appear hereinafter. The blade is what is commonly known as a wafer blade, having a single cutting edge 20. The cutting edge of the blade, when in position on the blade holder, projects over a slot 21 in the blade holder, the forward edge of the said slot bein in the form of a longitudinally extendinglmr 22, which constitutes a guard for the blade. The front portion 23 of the blade supporting surface is beveled. With the blade holder co-operates' a blade clamping member 24, which extends longitudinally of the support, projects over the led e 19 and overlies the blade supporting surface of the holder. This clamping member is somewhat resilient, so that its free front edge 25 is adapted to bear against the upper face of the blade in all positions of the The blades are fed from the handle onto the blade holder by means of a feeding plunger, not shown, the said plunger being provided with a feeding finger 26, which is adapted to extend through a discharge opening 27 in the slanting face 17 of the handle, said feeding finger being in alignment with the blade supporting surface of the blade holder when the latter is shifted around its pivot pin into a position in which the slanting surface 16 ofthe holder abuts against the slanting surface 17 of the handle. A detailed description of the blade feeding mechanism seems to be unnecessary, because the same does not form art of the present application for Letters atent and its construction and operationare well known in the art.

The upper end of the post 14 is in the form of a cam 28, the latter extending through an aperture 29 in the blade supporting element of the holder and being adapted to co-operate with the underface of the blade. This cam has an inclined acting face 30 for co-operation with the blade, the inclination of the said face to the horizontal plane decreasing gradually from the highest point 31 of the cam to its lowest point 32, at which it is horizontal or nearly horizontal. Having reference to Figs. 4 to 7, inclusive, of the drawings, it will be noted that at the highest point 0 the cam the inclined face extends at an acute angle to the horizontal plane (Fig. 5%, and at its lowest point it is horizontal ig. 7). At any intermediate point (Fig. 6), the angle of inclination is smaller than at its highest point.

As appears from Fi 2 of the drawings, the guard bar 22 is disposed asubstantial distance below the blade supporting surface 'of the drawings into blade receiving position, the cam 28 is automatically withdrawn from the aperture 29, thereby permitting a blade to be fed onto the supporting surface 18, the said blade then resting on the said blade supporting surface with its cutting edge projecting in front thereof toward the guard 22. In these positions of the elements, the rear edge 20 of the blade bears against the ledge 19, the latter guiding the movement of the blade as it is being fed onto the blade holder and the clamping member 24tkeeping the blade in proper position on the blade holder. When now the blade holder is shifted into the position shown in Fig. 1 of the drawings, the cam 28 is caused to project through the aperture 29 above'the blade supporting surface, its highest point 31 engag ing the underface of the blade when the elements are in the positions shown in Figs. 1 to 3, inclusive, of the drawings. As the blade holder moves into the position mentioned, the cam tilts the blade, that is to say lifts the rear portion of the blade in relation to the supporting surface and lowers its cutting edge toward the guard 22. These positions of the elements are clearly shown in Figs. 2 and 5 of the drawings, from which it appears that the blade extends at an acute angle to the blade supporting surface and its portion in rear of the cutting edge rests on the beveled portion 23 of the blade support. Attention is called to the fact that in these positions of the elements the cam makes a line contact with the underface of the blade, properly supporting the same in its tilted position. In Fig. 2 of the drawings the blade is shown in a position in which its cutting edge is disposed as near as the construction will permit to the guard 22 of the razor, with the result that a normal shave may be obtained. If a closer shave is desired, the blade holder is shifted around its pivot in the direction of the arrow shown in Fig. 1 of the drawings, whereby the resilient clamping member 24 causes the rear section of the blade to be lowered and its cutting edge to be raised as far as the cam 28 will permit. If, for instance, the blade holder is shifted to a point where the blade is adapted to contact with the cam face alon a line in the lane 66 shown in Fig. 4 of the drawings,

the blade will occupy the position shown in contacts with the cam along a line in the plane 7-7, the blade will occupy the osition shown in Fig.7 of the drawings. 11' all positions of the blade the cam contacts along a line with the underface of the blade for the purpose above referred to. From the foregoing it appears that the cutting edge of the blade is nearest the razor guard when the elements are in the positions shown in Figs. 2 and 5 of the drawings, and when the blade holder is shifted to render the cam operative between its highest and lowest points, the distance between the guard and the cutting edge of the blade is gradually increased so as to obtain a closer shave. The clamping member and the cam co-operating therewith cause, as appears from the foregoing, a gradual tilting of the blade, the edge 36 of the beveled portion 23 of the blade supporting surface serving as a fulcrum around which the tilting of the blade takes place. The co-operating marks 34 and 35 serve to indicate the relative positions of the handle and blade support and thus the inclination of the blade in relation to the blade supporting surface. If once the proper and desired inclination of the blade is determined, the graduations 35 in co-operation with the mark 34 obviously enable the operator to set the blade to the proper angle without further experimenting.

Inasmuch as the guard 22 is disposed below the blade supporting surface, the razor may be applied to the face with the handle at an acute angle to the face, or in other words in 2ft position which permits shaving with comort.

As stated above, the cam does not interfere with the feeding and ejecting of blades to and from the blade holder, the said cam being below the blade supporting surface when the holder is in blade receiving position. The withdrawal of the cam takes place automatically so that not a single element of the razor need be set or adjusted in order to allow feeding and ejecting of razor blades to and from the blade holder. The setting of the blade, onthe other hand, is also automatic, it being accomplished by the shifting of the blade support into shaving position and also without setting or adjusting any additional elements of the razor.

From the foregoing it also appears that the adjustment of the cutting edge in relation to the guard is accomplished by var ing the relative angular position of the ban 1e and blade holder. While this adjustment has been described and illustrated as being obtained by a cam face forming part of the razor handle and co-operating with the blade clamping element of the device, any other means may -be used without departing from the invention. Furthermore, the cam may form part of the blade holder and a spring element may be mounted upon the handle for co-operation' tions of the adjusting elements of the razor blade may be reversed.

What I claim is 1. A razor comprising a handle, a blade holder pivoted to said handle and adapted to be swung to one position for receiving a blade and to another position for shaving, a guard forming part of said holder, a clamping means on said holder for maintaining a with said cam face; that is to say the posia blade and to another position for shaving,

a guard forming part of said holder, a clamping means on said holder, for maintaining a blade thereon in operative relation to said guard in either position of said holder, and a cam face on said handle adapted to bear against the blade on said holder and to cooperate with said clamping means whereby the distance between said guardand the cutshifting said blade holder on said handle around the pivot connecting the same.

3. In a razor according to claim 2, said cam face being inclined in relation to the longitudinal axis of the pivot connecting said blade holder and said handle and its inclination gradually decreasing from one end to the other end thereof whereby a line contact is established between said cam face and the blade in all adjusted positions of thelatter.

4. A razor comprising a handle, a blade holder pivoted to said handle and adapted to be swung to one position for receiving a blade and to another position for shaving, a guard forming part of said holder, a clamping means on said holder for maintaining a blade thereon in operative relation to said holder when the latter is swung on its pivot to blade receiving position.

6. In a razor accordingto claim 2, said cam face being disengaged from the blade on said holder when the latter is swung on its pivot to blade receiving position and being engaged .95 ting edge of said blade may be adjusted upon with. the blade when said holder is swung to shaving position.

7. A razor comprising a handle, a blade holder pivoted to said handle and adapted to be swung to one position for receiving a blade and to another position for shaving, a guard forming part of said holder, said holder having a blade supporting surface disposed above said guard, said blade supporting surface having a beveled front portion, clamping means on said holder for maintaining a blade thereon in operative relation to said guard, said blade holder having an aperture extending through said blade supporting surface, a cam face on said handle adapted to be projected through said aperture so as to bear against the blade on said blade supporting surface and to co-operate with said clampingfmeans for varying the angle of inclination of said blade in relation to said guard as the relative angular position of said holder and said handle is changed, one edge of the beveled portion of said blade supporting surface serving as a fulcrum around which said blade is swung in varying its angular position in relation to said guard.

8. In a razor according to claim 7, said 'cam face being inclined in relation to the longitudinal axis of the pivot connecting said blade holder and said handle and itsinclination gradually decreasing from. one end to the other end thereof whereby a line contact is established between said cam face and the blade in all adjusted positions of the latter.

9. A razor comprising a handle, a blade holder pivoted to said handle and adapted to be swung to one position for receiving a blade and to another position for shaving, a guard forming part of said holder, and means for adjusting the distance between said guard and the cutting edge of said blade, said means being caused to operate upon varying the relative angular position of said holder and said handle.

10. In a razor according to claim 7, said cam face extending below said supporting surface when said holder is in blade receiving position and projecting above said blade supporting surface as said holder is being swung toward shaving position.

Signed at New York, in the county of New York and State of New York, this 10th day of April, A. D. 1928.

JOSEPH MUROS.