US2355830A - Reciprocating safety razor - Google Patents

Description

,Aug.`15, 19445 Y `v. T. VAN sLYKE 2,355,830,

REcnRooATING SAFETY' RAZOR Dec. .51', 1940 INVENTOR Patented Aug, 15,1944

UNITED STATES PATENT ornca i v w aacxraoca'ilssrarr nazca d Y d Victor T. Vail Slyke, Philadelphia, Pa., signor Corporation, Philadel- -lllll'oillm December 3l, 1940, Serial No. 372,586

owned by the assignee hereof.

`razor having a blade arranged to be reciprocated longitudinally by reason ot movement o! the razor assemblage over the face oi' the user.

Broadly, one object of the invention is to provide a razor of improved construction over what is shown in the patent to Galt, No. 1,882,007, now

One object of the invention is to provide a icl. :4o-46).' i blnation with the side rollers and a blade, which construction in which all ot the parts may be readily produced by automatic machinery, at low cost, and in which the number of parts is reduced to a minimum and which co-operate together without the use of cogs or gears; and in which the parts are so constructed that they maybe assembled by instrumentalities other than screwdrivers, wrenches or similar tools, and in which the parts are held together without the use ot nuts, bolts, pins, screws, rivets or similar tlxed elements. In other words, the ob'ject of the invention is to produce an assembly of the fewest possible parts, and the easiest form of assembly,

, and in which the parts are positive in action and not capable of derangement or displacement under extensive use.

A further, more specinc object is to provide a base or assembly frame, which may be formed by an automatic ma'chine instrumentality froma single piece or suitable material and which will rockably support and guide actuating reciproeating levers for the purpose of actuating a blade forming a part oi the assembly so that the blade will cut the hair instead of scraping 'the same.A

A further object of the base or assembly frame is to provide means for guiding a retaining lever adapted to operate a slidable blade supporting blade holder to be mounted on and guided by the base or frame above described, and which may be readily stamped from a single piece of d suitable material.

A further speciiic object is to provide a simple locking means to removably secure under tension a .form of blade disposed on the blade holder and which readily may be made by automatic machinery and assembled without tools.

A further object oitheinvention is to provide guard is provided with integral ears forming a continuation of a stiilening iiange at each end of the c ap. L

In the accompanying drawing, forming a part hereof. is illustrated an embodiment of the invention, in which drawing similar reference characters designate corresponding parts,and in which:

Figure 1 is a perspective view with the cap lor cover in elevated position, and the left end portion partly broken away to `lshowthe construction;

Figure 2 is a fragmentary detail in perspective, i

partly broken away, showing the supporting frame to which the handle is attached;

Figure 3 is'a fragmentary detail in perspective showing tlie construction of the handle;

Figure 4 is a fragmentary detail in elevation showing one of the rollers;

Figure 5 is a plan view of the slidable 'orvreciprocable blade holder, `part of the locking means being shown in dotted line position in locked arrangement;

Figure 6 is a horizontal section taken centrally and longitudinally through Figure 5;

Figure 7 is a vertical section taken centrally throughs portion of the blade holder showing the modiiied form of locking spring;

Figure 8 is a fragmentary detail in perspective of one corner of the cover plate or cap; Figure 9 is a. plan view of the assembly with the cover cap closed, to show the relationship of I the cover cap which forms a guard, the blade and the actuating rollers;

Figure 10 is a plan view of a portion of a form of .razor blade adapted to beused with the assembly; and, i

Figure l1 is a fragmentary detail in plan of one end of the assembly, the other parts being removed t0 show the relationship of the cams of the rollers, the actuating levers and the way in which they are supported. Y v

Referring to the drawing, a handle |2- isl provided with a series of parallel grooves I3 separated by walls I4, having a series of channels I5, v

as described inlmy copending divisional application.. Serial No. 426,959, filedJanuary 16,1942. The supporting frame I1 is formed from a sheet of suitable material and is provided with a cena cover` or cap which acts as a guard in ccmtral opening Il for the Vinsertion of the `handle i2, by meansof swaging or by means of screw threads. The supporting frame is provided with side walls i9, the ends of which are provided with longitudinal slots 20., 'I'he frame Il is provided with an end wall 42| at each end formed at right are provided with punchedI openings 22, that are so made as to produce circular extended projec- .tions 23, which are dome shaped for the purpose hereinafter described. Adjacent to each end the body, of the frame I1 between the longitudinal walls I8 is provided with drainage openings 53.

In making this part of the assembly it is pressed' from a single sheet of' material andy formed by automatic machineryi in the form showninFigure 2. i

In order to form the blade holder a sheet of material is pressed in a plane form. In each end thereof there are formed slots and a downturned lug V25, which is provided with a horizontal lip 26.

On each end on the lips 26 there is extruded an upwardly extended boss 21. In forming the downturned lugs there is left on each side of the body horizontally extended ears 28 which at each corner are provided with projectingvertical blade positioning lugs 23. y Intermediate of its ends the body 28 is formed with upwardly extending positioning bosses 38, to

' body 28 is formed to receive the ends of an arcuate spring 31 of an alloy'which is resistant. to

corrosion.

The body 26 is provided with a central opening -38 through which may be inserted fro'm the bottom a thimble 33, passing through the arcuate spring 31 and through theA opening in the body y28 and providedwith a flange 46 which bears against the under surface of the spring 31. The thimble 33 is provided with opposite diametrical longitudinal slots 4I, adjacent its upper end, so

that a key 42 (Figure 6) may be inserted through theseslots over the upper surface or the body of material 28. The key 42 is provided with a'at into the central depression 36. In the upper arcuate 'surface 44 of the key 42 there is provided a plurality of recesses 45 adapted to be engaged by theupper walls #of the slots 4I. When the key is in position as shown in Figure 6 it will be re- 2,355,830 angles to the body of material. The end walls cams so. Intermediate of the ams so there 1s formed in the cylindrical body a plurality of grooves 5I formed ofmerging, curved surfaces,

between which grooves there are walls 52, the bases of which walls are thicker than the apices so that greater drainage is afforded. The outer faces of the walls 52 are provided with knurled formations preferably parallel to the longitudinal axis of the cylindrical bodies forming the rolls.

Referring more specifically to Figure 11 of the drawing, at each end of the reciprocating blade supporting element 26 there is disposed a lever 54the ends of which extend through the slots 28 (Figure 2) and each of these levers is provided with an extension 55 'at each end arranged to abut the cam surfaces 58 of the actuating rolls.

The levers54 are provided with suitable openings or depressions 54a into which fit the bosses 21 of the lips 26 to afford a fulcrum for the levers 54 when actuated by the cam surfaces 5|).l Ihe opposite ends of the levers 54 rest against and abut the cam surfaces ofthe opposite roll. It will be noted that the en'ds of the levers 54 operate against the cam surfaces of the opposed rollers so that there is a continuity of action without break in reciprocating the blade carrier.

Referring specifically to Figures 1 and 8, the assembly hereinbefore described is covered by a cap 56 which acts as a guard and which is pro-y videdat each end with an integral nange 51, each of which flanges terminates at each'end in ears 58.- The rear side of the lcapis provided with openings ,58 (Figure 1), the material from the openings being extruded and the front edge being gbottom surface 43 and an arcuate upper surface 44. The fiat bottom surface 43 is of a size' to fit tained in position and itsfiat surface will rest in the'depression 36.

In the modified means for locking the blade in position, as shown in Figure'l, the thimble 46 and its parts are identical with what is shown in Figure 6; but the locking device takes the form of a spring 46 havingv depressions 41, the latter of which operate the same as the depressions 45 of the locking key44 shown in Figure 6. In both forms when the locking elements (44 or 46) are longitudinal with relation to the part 28 the blade 32 is removable. When the locking'eleyments are turned ninety degrees the blade is locked in position as shown in Figure 1.

Coming now to Figures 1, 4 and 11 of the drawing, actuating rolls are formed from a cylindrical body of suitable material, which may be metal or plastic. The rolls are each formed. of a cylindrical body having at each end a reduced portion' 48, merging in a less reduced portion 48, leaving extending from the body a surface comprovided through the ears 58 with dome shaped extrusions 60 adapted to t over the dome shaped extrusions23 of the openings 22 'inthe ends of ythe frame or supporting 'member I1. The front edge of the cap or cover 56 is further provided at the corners thereof, vwith shields or extensions 6I, and the ears 58 are provided with downwardly extending extensions or ears 62.

The. individual parts as described are first made through the medium of automatic machinery. In the assembly of the-'finished razor, handle l2 iS Secured to the blade supporting element I1 in either of the two ways. described. The blade supporting element 28 is disposed in the supporting frame so that the`downturned horizontally extended flanges 25 and 26 are between the sidewalls I3 ofthe supporting frame and the edges of the body28 abut the side walls I9 which form guides. The actuating vlevers 54 are disposed so that their ends project through the slots 20 and over the horizontal lips 26 and so that the bosses 21 extend through the openings 54a into the bosses of the levers 54. In that way the ends of the levers 54 extending through the slots 2| maintain the blade carrying element in reciprocal relation to the frame, the' downturned portions 25 and 26 of the blade carrying element being' retained in position and guided by inner and upper surfaces of the walls I9 of the frame or supporting member. The 'reduced ends 48 of vthe rollers are snapped into-the openings 22 of theA supporting frame I1. lThe blade 32 is disposed on the holder 28 and the locking element lis turned to the position shown inlifigure 1.

Further, in the assemblage of theparta there being no pins, nuts, bolts, or fsfclelws.' the entire assemblage may be made without tools and when in place cannot be displaced in the practical usage prised of merging Gurvedportions reproduce ofthe device..

The cap 56 is made of a sufficiently resilient material so that, when it is closed, the depresassaeso sions 60 are disposed over the projections 23, and

the cap is under a slight tension. By slight pres'- sure on the ears 62 the cap is released and may be opened to the position shownin Figure 1 o! the drawing.

i assured.

In the operation of the razor the user lathers his face as usual but much less lather than is usual should be used. 'I'he razor is applied by spread evenly in front of the blade 32 and is worked backward and forward into the hair; i

Second, the action of the walls of the grooves 5| and their walls is to massageand stretch the skin. The effect of this is to make shaving easier and more comfortable; and,

Third, asy roller 53 is rotated the cam surfaces 50 abut the endsfBS of the levers 54 causing reciprocation of the blade carrier I1, the boss 21 thereon projecting through the/- opening 54a of the blade .carrier and forming a fulcrum.

lAs the blade 32 is reciprocated with its holder it cuts rather than scrapes surface treated.

the roots of the hair from the Having thus fully described the invention, what l is claimed as new and desired to be secured by UnitedStates Letters'Patent. is: --1. A razor comprising a blade support vhaving end walls and side wallsprovided with guide slots,

to swing over 4ablade disposed on-said support.

2. yA razor comprising a support having end Walls andside wallssaid side walls having guide slots, rockable levers having their ends extending through the slots, a blade carrier disposed on the support and pivotally secured to the levers, rollers journaled to the end walls of the support and provided with cams at their ends abutting the ends of the levers, and a cover pivoted to the support and over the Vblade support."

3. A' razor comprising a frame, a blade carrier disposed on the frame and movable with relationv thereto said frame having a central opening, depending and extending ilanges at theends of said carrier, resilient means for securing the blade on/ the carrier, means carried by the frame for reciprocating the blade carrier and a cover pivoted to the frame.

4. A razor comprising a channel shaped frame. a blade carrier disposed on the frame and movable with relation thereto depending and extending lips at the ends of said carrier, a flanged plug disposed through the carrierv adapted to maintain a blade in position thereon, means carried by the frame for reciprocating the blade carrier and av cover hinged to the frame to swing thereover.

5. A razor comprising a support frame, va blade carrier disposed on the support frame and movable with relation thereto said carrier having a from the ends of said carrier, blade positioning bosses on the upper surface of the carrier. a securing element disposed through the carrier, a resilient member disposed throughv the securing element adapted to maintain a blade in position on the carrier, means carried by the support frame for reciprocating the blade carrier and a cover cap pivoted' to the support frame.

6. A razor comprising a supporting element, a reciprocable blade carrier mounted on the supporting element. means carried by the supporting element for reciprocating the carrier, and a resilient cover cap pivoted at one longitudinal edge to one corresponding edge of the supporting element and provided with means at its opposite edge to engage the other edge of the supporting element and provided with guards at its free corners to cover the corners of a blade disposed on said carrier.

7. As an article of manufacture aA unit for a razor comprising a supporting element formed from a single sheet of material, having its ends bent upwardly at right angles to the sheet and having its sides bent at an angle to form channel guides provided with guide slots midway the height of their end portions.

8. As an article of manufacturea unit for; a

razor comprising a supporting ,element formed from a single sheet of material, havingits ends b'ent upwardly at right angles to the sheet and having its sides bent at an angle to form channei guides provided with guide slots, saidenci extending outwardly past the sides Aof the channel, e. blade carrier slidably disposed on the supporting element between the guides and blade positioning bosses on its upper surface.

9. As an article of manufacture, ablade carrier l for safety razors comprising a sheet of material f formed with downreaching lugs centrally of its [depression adapted to receive a. blade locking member.

10. A razor comprising a supporting element formed froma single sheet of material having its Vends bent at an angie to the sheet and having its sides bent at an angle to lform guides said ends projecting outwardly beyond the sides and' having perforations in their extremities, a blade carrier `comprising aV sheet of material formed with downturned lugs disposed between the sides 'of the supporting element and adapted to be guided thereby, means for reciprocating the car-`-` serted throughl the opening, a key disposed central opening, lips extending and depending means for reciprocating the carrying element,

and a cover disposed to overlay the carrying element.

13. A razor comprising a holder, a bladesuppon carried on said no1der,means to move said support reciprocat'ively, a resilient .clamp for removably attaching a blade on said support, and

a cover plvoted to said holder at the corners of one o! its longer edges.

14. A razor comprising a holder, a blade support movable reciproatively in said holder,v ,means for actuating said support, means for resiliently clamping a blade on the support. a cover pivoted to said holder, and resilient meansto retain the cover when closed.

VICTOR T. VAN SLYKE.

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