US1792415A - Razor - Google Patents

Description

Feb. 10, 1931. J N 1,792,415

RAZOR Filed June 16, 1930 EEWHHJIIIII Ratented Feb. 10, 1931.

'ilNlTE D STATES PATENT OFFICE JOHN DEAN, OF BACINE, WISCONSIN, ASSIGNOR TO JOHN ASTER MANUFACTURING COMPANY, 0] mm, WISCONSIN, A CORPORATION OF WISCONSIN RAZOR Application filed June 16,

This invention involves improvements in razors, and specifically, relates to razors particularly intended for shaving under the arms; and the objects and nature of the invention will be understood by those skilled in the art in the light of the following explanation of the accompanying drawings illustrating the preferred mec anical ex ression or embodiment of the invention rom among other forms, arrangements and structures within the spirit and scope thereof.

An object of the invention is to provide an exceedingly economical simple and improved razor structure and arran ement, that can be easily cleaned, assemble and taken apart, and is easy to operate by either hand particularly in shaving under the arms, although capable of use in removing hair from the face and other parts of the body.

With the foregoing and other objects in view, my invention consists in certain novel features and structural formations, which are more fully described and specified hereinafter.

Referrmg to the accompanyingdrawings, forming a part hereof:

Fig. 1 shows one of the embodiments of the razorof my invention in perspective.

Fig. 2 is a rear elevation, partially in section.

Fig. 3 is a section taken on the line 3-?1, Fig. 3, but showing the nut loosened to permit removal of the guard.

Fig. 4 is a detail perspective view of the guar Fig. 5 is a detail perspective of the sleevelike or approximately cylindrical blade formed of a flat ribbon of thin flexible steel bent to encircling or annular form with its overlapping ends secured together.

Fig. Bis a perspective view of the razor without theguard.

The razor disclosed embodies o en-center circular or annular a proximate y cylindrical blade 1, compose of a more or less flexible thin flat band or ribbon of steel or other suitable metal bent to approximately cylindrical form with its two ends 1a, overlapping and secured together in any suitable or ap ropriate manner.- The razor blade ends rest at face to flat face one on the other 1930. Serial N0. 461,481.

and can be soldered, riveted or otherwise permanently united, although in the example illustrated, show the preferred construction with the blade ends perforated, with the perforations registering, and the blade ends rigidly united by hollow rivet or metal eyelet 2, providing a perforation 2a, that can be conveniently utilized for the rece tion of means for detachably coupling the lade to a suitable handle.

This approximately cylindrical blade of relatively large diameter provides an open center and a cuttin edge of long radius, although, if so desired, ened 'or provided with a cutting ed e or edges throughout, or artially throng out, the full circle of oneor oth ed es.

I prefer to transversely have the thin steel ribbon at one flat side to form the longitudinal razor cutting edge 10, extending throughout at least about one half of the Ian h of the thin fiat ribbon but located central y betweenthe ends thereof, so that when the flat ribbon is bent and secured in cylindrical form, the bevel will be at the inner surface of the cylinder and the razor ed 10, approximately flush with the out circumferential surface of the cylinder. However, I do not wish to limit my invention to any particular manner or method of bevelling or sharpening the. steel ribbon to rovide the same with the desired razor cuttmg edge. I prefer. to form the razor edge, throughout the central a proximate hal le h of the thin steel rib on so that when the ribbon is bent to the approximate opencenter cylindrical form with its ends se- Fdr instance, merely as an example, I show a handle 3, secured to and projecting radially from the rear portion of the cylindr cal blade,

such as 10 the blade can be sharpi. e. from the portion of the blade diametri cally opposite the cutting edge sector or outer crown or arch of the blade.

In the example shown, the outer end of the handle forms end abutment orseat 3a, from which centrally rojects a screw threaded stud 3b, rigid wit the handle.

The radial perforation 2a, through the overlapping secured ends of the blade, is adapts to receive the threaded stud, with the outer surface of the cylindrical blade fitting the end seat 3a. The blade can be removably and fixedly clamped to the handle by a removable nut 4, screwed on the projecting end of threaded stud 36, within the open center of the blade, to ti htly clamp the b ade against the handle an seat 3a. The blade can be easily removed, by unscrewing the fin er nut 4, and removing the same, and then sipping the blade from the threaded handle stud 3b. A fresh sharp blade or the old blade resharpened, can be as quickly assembled with the handle and the two clamped -together; either with a guard, as in Fig. 1,

or without a guard, as in Fig; 6.

As a matter of fact, the lade by reason of its lar e diameter and open center and annular orm, can be handled for shaving pur oses, without the use of an added handle, as e inner arched portion of the blade can be asped and wil serve the purposes of a handle, whether or not the blade is equipped with a guard where the inner arched portion of the lade is not equipped with a cutting edge, or where the blade is equip d with a guard if the blade is formed wit a cutting edge approximately throughout its circle or circumference. Hence, I do not wish to limit all features of my invention, to the inclusion of an added ard and to the inclusion of an added han le, although for the protection of the general run of unskilled users, a guard is desirable.

In Figs. 1 to 4, I show as an example, a form of guard from among others, that can be employed.

This guard is in the formvof an annulus, sleeve, or ring 6, of stifi material, of reduced diameter with respect to the c lindrical blade, to fit removably yet snuglg t erein, the rin being approximately cylin rical in form, an in this example, has a radial opening 6a, to register with the perforation 2a, of the blade, for the passage of the handle stud 3b, to receive the finger nut 4, within the center opening of the guard, so that the guard and blade can be clamped together and against the handle end abutment.

In the example shown the opening 6a, in the relatively stifi' guard sleeve 6, is in the form of a notch or slot that o ens through the rear edge of the sleeve w ile closed at its opposite end at about the center of the length of the sleeve, whereby the sleeve can be slipped longitudinally into and from the cylindrical blade and to and from the razor without removing the blade, as when the nut is loosened as shown by Fig. 3. The guard sleeve 6, forms an unbroken annulus or approximate cylinder with an outer or circumferential surface to slide longitudinally or endwise into the blade and fit snugl therein and support and maintain the bla e in the desired approximate cylindrical form and against deformation or distortion.

The outer approximate haif of the sleeve 6, that in length or number of degrees corresponds to and registers with the razor cutting edge 10, is formed with a radial opening 61;,

in the form of a narrow circumferential slot that in width is equal to, say, about one half the longitudinal width or length or the sleeve 6, and is so arranged that when the bla de and guard sleeve are operatively assembled, said slot 6a, will be exteriorly covered by the blade, and the cutting edge 10, of the blade and a rearward portion of the inner surface of the blade will be over the slot, so that the slot provides free clearance for the lather etc. during operation and cleansing.

When the parts are operatively assembled this slot is in length or number of degrees approximately equal to the length of the operating portion of the blade cutting edge 10, and registers therewith. To guard the cutting edge 10, the guard sleeve is formed or provided with a fixed segmental front bridge 60, rigid with the sleeve and forming the front boundary of said slot, and this bridge 60, forms a longitudinal series of spaced upstanding fixed ard fingers 6d, the free ends of which are de ected rear-wardly to lie under the cutting ed e 10, whereby the bridge and its fingers wil guard the hands and skin against accidental cutting or injuring contact with said cutting edge. The radius of the cutting edge 10, exceeds the radius of the circle of the fingers 6d, and hence the fingers and the bridge carryin the same are arranged inwardl of said e ge, while the bridge and bases 0 the fingers are located slightly in front of the plane of the front edge of the annular blade. The guard sleeve 6, is of about the same len h or longitudinal width as the annular bla e, except at the sleeve portion that includes said bridge, and when the sleeve and blade are operatively assembled the front and rear edges of the sleeve are substantially flush with the front and rear edges of the blade except that the bridge extends forwardly a sufficient slight distance to guard the cutting edge 10,

This guard when operatively assembled with the blade,' is without exterior projections, fingers, or objectionable corners, likely to scratch or injure the skin, but is exteriorly smooth and rounded, and the razor is preferably without exterior projections, except for the handle, the cutting portion or outer crown portion of the blade being flat and smooth.

the blade and within the blade that the The guard sleeve, preferably, so snugly fits arts are held in operative relation for use, i so desired, without the attached handle, or if a handle is employed, without utilizin a stud and nut to clamp together the blade. and guard Furthermore, it is obvious that the handle can be secured to the blade otherwise than by the threaded stud and nut that require a hole or perforation in the blade. 4

The guard and blade can be easily separated for cleaning or renewal, and as readily reassembled, whether or not the handle is employed and whether or not the handle, if employed, provides melans for securing together uar The guard s eeve forms a supporting backing completely around the interior of the flexible blade to maintain the circular or a proximate cylindrical form of the bla e, whereby, if so desired, an exceedingly thin flexible steel ribbon can be employed in forming the blade.

The skin under the arm is very tender and easily irritated, and the form and de th of the hollow under the arm varies in di erent persons, and I find that the circular blade is adapted to these various hollow forms and depthswithout danger of cutting or injury to the skin, fitting all under the arm conditions, with ease, convenience and confidence, on the part of the operator.

The disclosure hereof is for purposes of explanation to teach those skilled in the art to make and use an embodiment of the invention from among others within the spirit and scope hereof, and hence the disclosure hereof is not for limiting and restricting purposes except in so far as required by the prior art.

What I claim is': 1. A; razor including a blade embodying a flexible ribbon havin at least its central longitudinal portion 5 arpened for cutting along one longitudinal ed e, said ribbon bent to annular open center arm with its ends overiap ed and secured together; in combination wit an annulus removably fitted within and maintaining said blade in annularform 83d providing a guard for the blade cutting e A razor including a blade embodying a flexible ribbon havin at least its central longitudinal portion Eharpened for cutting along one longitudinal edge, said ribbon bent to annular open center orm with its ends overlapped and secured together, and a guard member for said cutting edge, removable fitted to said blade; in combination with a removable handle, and means for removably securing the blade and handle together.

3. A razor embodyin a handle havin an end abutment and a tfireaded longitu nal stud proiecting therefrom; an open-center cutting b ade having a cutting edge alon at least one edge of its outer sector, said b ade having a radial hole through its inner sector to removably receive said stud; and a re movable nut for saidstud to clamp the blade against said abutment.

4. A razor having an annular open-center thin flexible cutting blade; an annular guard for said, blade fitted therein and supporting and maintaining the same in annular form; an exterior detachable handle for said blade; and means for detachably securing the blade and guard together and to the handle.

5. A razor including an ap roximately c lindrical blade formed of a tliin flexible rib-- bon of razor blade material bent to annular form with its ends secured together by an eyelet providing a radial perforation.

6. A razor including an approximately cylindrical blade of thin flexible ribbon of razor blade material; a stifl guard sleeve snugly and removably fitted within said cylindrical blade and internally backing the same throughout the'circle thereof, said sleeve providing a slot under and extending to the rear of the blade cutting edge and a guard bridge in front of said slot having guard fingers extending rearwardly under said edge.

7. A razor including an approximately cylindrical blade having a radial openin a nerd sleeve removably fitting snugiy wit in said blade and provldin'gw. guard 01 the cutting edge thereof, and having a radial notch opening through one side ed e of the sleeve; a handle having a threade stud to project radially through said opening and notch; and a nut to screw on said stud and clamp the blade and sleeve together and to the handle.

- 8. A safety razor embodying a thin flexible razor blade ribbon bent to open center form and providing an arched outer segment having a curved longitudinal cuttin edge for cuttin hair; means being rovide securing the ent ls of said ribbon in xed relation to maintain said curved outer cutting segment, in" combination 'with a ard fitted within said bent open center rib on and backing the same against inward distortion.

9 A razor for removing hair from the human body, embodyingb an elongated flexible razor blade ribbon ent to open center f rm providin an arched outer segment havmg a curved ongitudinal edge for cutting hair, means securing the ends of the ribbon in fixed relation to maintain said form; and a ard for said edge; said razor including a andle portion.

10. A safety razor blade composed of a length of flexible thin razor blade ribbon having a cutting edge for removing hair, bent to permanent open center annular form and having its ends overlapping and fixed together; to provide for an exterior handle, and to receive an interior 0 en-center stiffening sleeve having a guard or said edge.

11. A razor embodying an annular openhaving an openin center razor blade of flexible razor blade 11 having an edge for removing hair in combination with a stiflening sleeve wit said blade and backing the same, said sleeve exposing operation with a rent guar bridge havm rearwardly extending ard fingers for sai edge, said blade and eeve being separable. 12. A razor 'havin a handle portion, and

embodigin an ann j ar open-center flexible lade razor having a longitudinal arched front edge for removing hair, in combination with a b ade backing and stiflem'ng fitted within the open-center of said blade and providing a guard for said front edge, means being provided whereby said member is slidable laterally into and from said blade.

13. A razor havin a'handIe-portion, and

embodfimg an 4 r open-center flexible razor la e having a longitudinal arched front edge for removing hair, in'combination with a b ad e backing and. stifienin member fitted within the o n-eenter of said hide and roviding a (Fear for said frontedge, means mg provi ed whereby said member is slidable aterally into and fromsaid blade with ect to said handle portion.

gigned at Racine, county of Racine, State of Wisconsin, this 13th day of J .une, 1930.

JOHN DEAN.

881d edge for member means center razor blade of flexible razor blade ,ribbon having an edge for removing Ila-lag:

combination with a stifiening sleeve said blade and backing the same said sleeve having an openin exposin and edge for operation with a rent guar bridge havin rearwardly extending guard fingers for sai edge, said blade ands eeve being separable.

12. A raz'or 'havin a handle portion, and embodiilngl an annu ar open-center flexible razor having a. longitudinal arched front edge for removing hair, in combination with a b ade backing and stiffening member fitted within the open-center of said blade and providing a guard for said front edge,

means being provided whereby said member 1s slidable laterally into and iron; said blade.

13. A razor havin a'handleportion, and embed in razor front ed an aim or openoenter flexible la e having a longitudinal arched for removing hair, in combination with a b ade backing and. stifienin memberin able fitted within the OJBll-Ofillte! of said lade and rovidmg afuar for said frontedge, means provi ed wh ereby said member is slidaterally into and from'said blade with ect to said handle portion. glued at Racine, county of Racine, State this 13th day of June, 1930.

J OHIN DEAN.

lt is hereby certified that the assignee in the above numbered patent was erroneously dee eribed and specified as "John Aster Manufacturing Company", whereas said assignee should have been described and specified as John Oster Manufacturing Company, ns shown by the records of assignments in this office; and thntthe said Letters Patent should be read with this correction therein that-the samemay conform to the record of the case in the Patent Office.

' Signed and sealed this 3rd day of March, A. D. 1931.

v M. J. Moore,

(Seal) Acting Commissioner of Patents.

V Granted February 10, 1931.10

CERTIFICATE .OF CORRECTION.

Patent No. 1, 792,415. Granted February 10, 1931. to

JOHN DEAN.

It is hereby certified that the assignee in the above numbered patent was erroneously described and specified as "John Aster Manufacturing Company", whereas said assignee should have been described and specified as John Oster Manufacturing Company, as shown by the records of assignments in this office; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 3rd day of March, A. D. 1931.

M. J. Moore, (Seal) Acting Commissioner of Patents.

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