US1910430A

US1910430A - Safety razor

Info

Publication number: US1910430A
Application number: US576886A
Authority: US
Inventors: Nicolay K Fougner
Original assignee: Individual
Current assignee: Individual
Priority date: 1931-11-23
Filing date: 1931-11-23
Publication date: 1933-05-23
Anticipated expiration: 1950-05-23

Description

N. K. FOUGNE'R SAFETY RAZOR 3 Sheets-Sheet 1 May 2s, i933.

Filed Nov. 23. 1931 INVENTOR ATTORN EY May 23, l1933 N. K. FOUGNER 1,90943 SAFETY RAZOR Filed Nov. 23, 1931 3 Sheets-Sheet 2 uw n Ell-Immun INVENTOR IZILg/ze @rn/11% if ATTORNEY wlTNEssEs 74 May 23, 1933. N.. K. FouGNER 19910430 SAFETY RAZOR Filed Nov. 23, 1951 I 3 Sheets-Sheet 3 INVENTOR wnTNx-:ssEs A ./jfou 11er ZM 'W0- BY m Q y ATTORNY' Premsa May 23, 1933 UNITED STATES NICOLAY K. FOUGNEB, OI NEW YORK, N. Y.

SAFETY RAZOR application mea november as, 1931. serial No. avesse. c

This invention relates to safety razors, and has particular reference to a safety razor having a continuous blade.

The invention aims for one of its objects to provide a razor of the type specified, in which the blade holder is fashioned to form a' closed hollow handle part constituting a container for blade supply and receivingspools, and to further form a guard part delining a pair of .spaced flat surfaces for simultaneously supporting for shaving, two separate lengths" of the blade.

The invention urther comprehends in a blade holder vfor a continuous blade safety razor, a clamping element carried by and shiftable with respect to the guard part of the holder to releasably clamp the two active or exposed lengths of the blade between said element and the surfaces of the guard.

As a further feature, the invention embodies a continuous blade orsaety razors having a longitudinal cutting edge and which is adapted to be coiled on a anged spoel, which blade isso constructed as to provide 5 means for spacing the cutting edge from the flanges of the angedspool.

The invention further comprehends a spool for a continuous blade, in which the spool is so constructed as to cooperate with the blade to. avoid contact of the cutting edge with the spool flange.

Other objects of the invention reside in a safety razor of the indicated character which employs but few and simple parts capable 5 of economical rduction and assemblage and which is high y eicient in its pur ose.

Other ob]ects will be apparent om lie following description and accom anying drawings, While vthe actual sco e o the invention is defined by the appen ed claims.

In the drawings:

Figure 1 is a top plan view of a safety razor constructed in accordance with the in vention.

Figure 2 is a side or edge view thereof.

Figure 3 is a bottom plan view thereof.

Figure `4 is anenlarged -inverted sectional lan view taken approximatel on the plane indicated by the llne 4`4 in i re 2'.

Figure 5v is an enlarged 1ong1tudinal sectional view taken approximately` on the plane indicated by the lline 5-5 in igure 1.

Figure 6 is a fragmentary view similar to Figure 5, illustrating the released' condition of the blade.

Figure 7 is an enlarged transverse sectional view taken approximately on the line 7-7 of Figure 1. l L Figure 8 isan inverted plan ,view of the manilpulator or turning the blade receiving Spo) 1 Figure 9 is an enlarged Ilongitudinal sectional view of. the .blade clamping element.

Figure 10 is an enlarged long1tudinal sectional view of the upper section of the blade holder casing.

Figure 11 is a similar View of the lower section of the blade holder casing. Figure 12 is a perspective' View of one of the blade spools.

K Figure 13 is an edge view of one of the blade spools.

Figure 14' is a fragmentary side view of one end of the'blade.

Figure l5 is -a detail perspective view of the pawl which cooperates with the blade spool ratchet teeth.

Figure 16 is an inverted plan view of a modified form of the manipulator for turning the blade receiving spool.

Figure 17 is a plan view of a modified formof blade spool.L v

Figure 18 is a side 0r edge View with parts broken away and shown in section, and illustrating a modified form of the blade holder construction.

Referring to the drawings by characters of reference, the razor includes a continuous blade 20 having a longitudinal cutting edge 21 and provided at its opposite ends with terminals 22 which are .of greater width than the width of the remaining portion of the blade and'which have edges 23 extending beyond the cutting edge`21. The terminal strips 22 in additlon to constituting means for handling the blade to avoid cutting of the fingers, are provided with suitable means, such as a keyhole slot 24, for interen a ement with a headed stud 25 on the tubular body 26 of a spool. As illustrated, the termisaid tubular body is provided at its opposite ends with the

annular flanges

27 and 28.

5' `The blade holder comprises upper` and Jlower

sections

30 and 31, which when assembled deine a closed hollow handle partv 32' which is adapted to act as a ma azine for and contain the unused and used engths of an extending guard part 33 which is .of substantially channel shaped cross sectional conv' figuration, presenting a continuous dependmg marginal ange 34 defining a-pairfofl at longitudinally

convergingfsurfaces

35 and 36 joined at their outer ends'by,

spaced a curved, preferably arcuate, connecting surface 37, the radius of which is approximately equal to that of the spool body radius. The lower edges of the portions; of the flange 34 defining the

flat surfaces

35 and 36 are notched to provide the guard teeth 40, while the

surfaces

35,36 and 37 at` the upper portion of the flange are provided with an outwardly projecting bead 41 defining an abut'- ment shoulder 42 against which the upper edge of the-blade is designed to seat. The upper section 30 of the blade lholder is provided with a depending' tubular boss 44 which has an interiorly threaded lower end 45, and which boss extends into an opening 46 in the lower section 31 and terminates within said opening. The upper section 3() is also rovided with an arcuate depending'wll 4 at its juncture with the guard part 33, 'and depending blade guiding langes48and 49 extending rearwardly from said wall 47.

The lower section 3l of the holder is formed with an upstanding wall 50 extending around one end and along the opposite sides thereof and terminating adjacent the depending arcuate wall 47. The terminals bf the walls 50 are spaced from the blade guiding anges 48 and 49 a distance approximatin the thickness `of, the blade 20, thereby de '

ng passages

51 and 52 through which the blade passes from and is returned to the hollow handle part 32. Obviously, the

casing sections

30 and 31 may be .assembled in any des1red manner, such as by the interengagement of the tongues 53 at the upper edge of the wall 50 with the receiving notches 54 at the marginal edges of the upper section 30, and said sections may be removably retained in assembled relation by the screw 55, the

. threaded shank 56 of which engages with the internal thread 45 of the de ending tubular boss 44. The screw is preibrably provided with a kerfL57 of a size to accommodate a coinso as to avoid the necessity of usinga screw driver to remove or emplace the screw. The depending tubular boss 44 is circular yin cross section and is of an appropriate size to constitute-1.a journal for receiving thereon the spoolbody 26 from whichthe blade extends a means for setting up a resistance or retarding action to the free turning of the su ply spool, which resistance may be varie by tightening or loosening the screw to cause variation in the clamping of the casing walls against the spool iianges. the blade 20. The upper section also defines The upper section 30 is provided with an opening 60 of larger size than but disposed in axial alignment with an opening 61 in the bottom section 31. The opening 60 accommodates the circular bearing'portion 62 of a spool mounting and turning assemblage 63 formed with an exteriorly disposed c1rcular head part 64. The member 63 `further includes a reduced cylindricalportion 65 which is of a diameter to snugly receive and accommodate thereoverl the tubular body 26 of a blade spool. The assemblage 63 further includes a shank 66 projecting axially from I the reduced portion 65s and formed with a threaded extremity 67. A retaining screw,

68 having a reduced cylindrical portion 69 9 is designed to engage through the opening 61 in the lower section and to snugly vengage within the spool body 26. The shank 69 is formed with a threaded recess 70 for receiving the threaded'fterminal 67, while the en- "9 pllng lugs 73, whereby the spool is mounted .and connected for turning movement by and' with the manipulator part 64. I d

In order to prevent retrograde movement ofthe spools, the Hanges 28 of the same are formed with peripheral ratchet teeth 75 with which the

arms

76 and 77 of a double spring pawl '78 cooperate. The pawl is preferably constructed from a single piece of material having' a medial angulated projecting portion 79 which is anchored in a receiving slot 80 .in the upper section v30.

In order to provide rmeans whereby the user may observe the amount of blade remaining on the supply spool, the lower flange 27 is formed of Celluloid orfany other suitable transparent material, while the front wall of the lower casing section 31 is rovided with a window opening 81 within wil-ich ,is arranged a celluloid or transparent panel The portion of the blade 20 having. the

longitudinal cutting edge 21 lying between the terminals 22 may tend to sag and contact with the lower flange 27, thereby resulting in dulling of the cutting edge. In order to 13 overcome this, the upper or unsharpened edge of the strip 20 is caused to adhere to the upper flange 28 in any desired manner,prefera ly by forming said flange 28 as a permanent magnet consisting of a plurality of circumferentally spaced magnetized sections 83. It may also e found desirable to coat the upper surface of the lower flange 27 with asuitable transparent grease or lubricant L, as illustrated in Figures 5 and 6 of the drawings, for the purpose of protecting the cutting edge against the possibility 'o oxidization. Obviously, as the blade is'withdrawn from the hollow handle part, the grease or lubricant will be substantially removed by its movement through the passage 51 and,

further, by flushing the blade with hot water.

The razor further includes a clamping element designated generally by the reference y character 85. The clamping element is shaped to conform generally to the guard part of the upper section 30 and is provided with a depending marginal flange 86. The lower beveled edges 87 of the portions which are designed to lie alongside of the

surfaces

35 and 36 terminate slightly above the cutting edge of the blade. The remaining portion corresponding to the curved or arcuate surface 37 protrudes downwardly as at 88 and is provided with an inwardly directed bead 89 which engages under that portion of the guard part 33 which is provided with the surface 37. The flange 86 on its inner surface adjacent its juncture with the clamping element 85 is formed with a continuous groove 90, to insure a clearancefor proper clamping, action of the lower part of the fiange with the blade. The guard element 85 is formed witha longitudinal slot 91 and the guard part 33 is provided with an upstanding T-shapedrib 92, the shank of which extends through the slot 91 and the head of .which overlies the guard element to act as a guide for longitudinal shifting of the guard element respectively to the clamped and released positions illustrated in Figures 5 and 6. In order to provide means for facilitating the shifting of the guard element and for locking the same in its clamped relation, a knob 93 is carried by a spindle 94 which ise journaled in a bearing openin 95 in the ele ment 85, and said spindle carries at its lower end an eccentric or double cam locking element 96 which` is received within the tubular l bossl 44 and coacts therewith, as illustrated in Figure 5, to rlock the lockingI element in clamped relation to the blade and to act as a. final means for drawin the clamping element tightlyk against the lade. j

In order to facilitate flushing and cleansing of the blade, guard part and clampin p element when the blade is released, the sai clamping element is formed adjacent its `juncture with the ange 86 with a plurality of slots 97. It thus follows that after the or key thus serves'in the capacity of c. means shaving operation with the clamping element vmoved to the release position illustrated in Abroken lines in Figure 1, a free passa e is afto the user the replacement of a genuine blade corresponding to the type of holder provided.

In use, the hollow handle part 32 serves as a means for grasping the device in the hand when shaving with the section 30 disposed uppermost, thereby disposing the blade ink approximately parallel relation to the face. Due to the fact that two lengths of the blade are exposed for use simultaneously, it is obvious that the razor may be used in either the right or left hand with equal facility: As soon as the cutting eiiiciency of the exposed lengths is impaired, the user has only to turn the knob 93 to release the cam from engagement with the boss 44 and to then shift the clamping element from the full line to the dotted line position shown in Figure 1. rlhis releases the blade and the user` then turns the assemblage 63 in a clockwise direction to withdraw from the hollow handle part 32 a new length of blade from the supply spool which is journaled on the tubular boss 44. At'theV same time, this winds onto the other receiving spool the used length4 of blade. The device as proportioned pro- -vides on theA supply spool a suflicient length of blade to last the average persona full year. After the supply of blade on the supply spool is exhausted, the casing section 31 may be displaced by removing the

screws

55 and 68. The terminal 22 attached to the supply spool provided with a threaded Opening-101 adapt' 12(5) ed to engage with a lthreaded shank 102 formed on and projecting upwardly from the circular head 64 of the spool mounting and turning assemblage. The manipulator for preventin 1105 .is released and wound upon the receiving unauthorized feeding of a .125

fresh lengtho blades byothers, in that when it is unscrewed and removed, the circular i head 64 and threaded shank 102 cannot be employed for turning the assemblage. Furthermore, the threaded or equivalent conv nection of the manipulator with the receiving spool mounting and turning assemblage 63 serves'to prevent retrograde .turning of the assemblage, with the possibility of damage to the ratchet pawl, ratchet teeth, the

coupling between the spool and its mounting or other parts. Itis obvious that retrograde turning of the manipulator or key 100 will immediately effect the unscrewing of the same, thus protecting the parts against straining or breakage.

In some instances, however, it may be found desirable to totally discard the holder when the blade supply is exhausted, and in A44a and the latter acting as a Journal f'or the receiving spool and having riveted thereto as at 31e, the terminal of the shank 66a of the receiving spool mounting member.

What is-claimed is 1. In a safety razor having a continuous blade, a blade holder fashioned to provide a' hollow handle partto contain the unused and .used lengths of the blade'and aguard part defining a pair of spaced flat non-parallel V surfaces for simultaneouslyV supportingfor shaving, two separate lengths of the blade.

2. In a safety razor having a continuous blade, a blade holder fashioned to provide-a hollow handle part to contain the unusedand used lengths of the blade and a guard part defining a pair of spaced flat non-parallel surfaces for simultaneously supporting for shaving, two separate lengths of the blade and a. clamping element carried by andshiftable with respect to the holder to releasably clamp the two active blade lengths between the same andsaid surfaces.

3. In a safetyI razor havinga continuous blade, a blade holder fashioned to provide'a hollow handle part tocontain the unused and used lengths of the blade and a guard part defining a pair of spaced fiat non-parallel surfaces-for nsimultaneously supporting for shaving, two separate lengths of the blade, a clamping element carried by and shiftable withrespect to the holder to releasably clamp the two active blade lengths between the same and said surfaces and means in said handle part for supporting in coiled form, the used and unused lengths of the blade.'

4. A safety razor having the combination of -a continuous blade, a supply spool upon which the unused length of the blade is coiled, a receiving spool upon which the used length of the blade is coiled and ,a blade holder fashioned to provide a closed hollow handle part to contain-`said spools and a guard part defining a pair of spaced flat ponparallel surfaces v.for simultaneouslyl supporting for shaving, two separate lengths of the blade.

5; A safety razor having the combination o f acontinuous blade, a supply spool upon which the unused length of the blade is coiled, a receiving spool upon which the used length of the blade is coiled and a blade holder fashioned to provide a closed hollow handle part to'contain said spools and a guard part delininga plurality of spaced flat non-parallel surfaces for simultaneously supportin for shaving, a plurality of separate len is of theblade.

'6. A safety ,razor having the combination of a ycontinuousblade, a sup lyspool upon which the `unused length o vthe blade is coiled, a receiving spool uponv which the used len h of the blade is coiled and a blade holder ashioned to provide a closed'hollow handle'part to contain said spools and a guard part' defining a plurality of spaced flat nonparallel surfaces for simultaneously supporting for shaving, a pluralityl ofseparate 'lengths ofV the blade and means within said spools handlepart for mounting'the -blade for turning movement.

7. `VA`safety ,razor having the combination -of a continuous.blade,a supply spool uponwhich the unused' length of the blade iscoiled, a receiving spool upon which the used ,len hof` the blade is coiled and a blade holder ashioned to provide aclosed hollow han'- dle part to vcontain said spools and a guard part defining a plurality of spaced flat nonparallel surfaces for simultaneously supporting for. shaving, a plurality of separate lengths of the `blade and means within said handle `part for mounting the blade spools for turning movement and for limiting turning movement thereof in a direction to -feed the unused length of the bladefover the guard lengths of the blade, means for mountin the blade spools for turning movement an f oi` limiting turning movement thereof 1n a direction to permit of the feeding of the unused length of the blade over the guard part, said means being engageable with the receiving spool, to effect turning thereof to wind the blade thereon for feeding said blade from the supply spool over the guard part and an exteriorly disposed removable manipulatorformed as a part of said means.

9. A safety razor having the combination of a continuous blade, a supply spool upon whichv the. unused length of the blade is coiled, a receiving spool upon which the used length of the blade is coiled and a blade holder fashioned to provide a closed hollow handle part to contain said spools and a guard4 part defining a plurality of spaced flat nonparallel surfaces for simultaneously supporting for shaving, a plurality 'of separate lengths of the blade, means for mounting the blade spools for turning movement and for limiting turning movement thereof in a direction to permit of the feeding of the unused length of blade over the guard part, said means bein engageable with the receiving spool, to e ect turning thereof to wind the blade thereon for feeding said blade from the supply spool over the guard part .and an exteriorly disposed removable manipulator formed as a part of said means and having a connection which is releasable upon retrograde turning movement.

10. A safety razor having the combination of a continuous blade, a supply spool upon which the unused length of the blade is coiled,

a receiving spool upon which the used length of the blade is coiled and a blade holder fashioned to provide a closed hollow handle part to contain said spools and a ard part defining a plurality of spaced at non-parallel surfaces for simultaneously supporting for shaving, a plurality of separate lengths of the blade, means for mounting the blade spools for turning movement and for limiting turning movement thereof in a direction to ermit of the fee-ding of unused lengths of lade over the guard part and cooperative coupling devices provided on the receiving spool and its mounting including correspondingly shaped inter-engaging portions thereof. 11. A safety razor having the 'combination of a continuous blade, a supply spool upon which the unused length of the blade is coiled,

a receiving spool upon which the used length of the blade is coiled and a bladeholder fashioned to provide a closed hollow handle part to contain said spools and a guard part defining a pair of spaced -fiat longitudinally converging surfaces joined at their outer ends by a 'curved connecting surface and coinciding respectively at their inner ends with blade passages communicating with the hollow handle part, saidlat surfaces constituting means for simultaneously supporting for shaving, two separate lengths of the blade.

-12. A safety razor having the combination iof a continuous blade, supply spool upon which the unused length of the blade is coiled, a receivin spool upon which the used length of the bla e is coiledv and a blade holder vfa'shioned to provide a closed hollow-handle part to contain'said spools and a guard part defining a pair of spaced flat longitudinally converging surfaces joined at their outer ends by a curved connecting surface andcoinciding respectively at their inner ends with blade passages communicating with the hollow handle part, said-flat surfaces'constituting means `for simultaneously supporting for shaving, two separate lengths of the blade and a coop erative blade clamping element mounted on the blade holder and having cooperative divergentvflat surfaces and a curved connecting surface and mounted for shifting movement E111 he blade holder to clamp and release' the a e. v

13. A safety razor including in combina- -tion a continuous blade having a longitudinal cutting edge, a supply spool upon which the blade is wound, a receiving spool upon which the used blade is adapted to be wound and a combined blade holder and handle including cari'ied by the casing and shiftable with ref-v y erence to the extension to clamp or release the blade.

14. A safety razor including in combination a continuous blade having a longitudinal cutting edge; a supply spool upon which the blade is wound, a receiving spool upon which the used blade is adapted to be wound and a combined blade holder and handle including a hollow casing within which the spools are housed and rotatably mounted in the sameplane,-`an extension on said casing constituting a. guard around which-the blade is trained, said extension having a pair of oppositely disposed straight sides convergingy longitudinally and joined by a curved surface and a correspondinglyshaped clamping element carried bythe casing and shifta-ble with reference to the extension to clamp or release the blade and releasable locking cam for holding said element in its blade clamping relation.

15. In a safety razor, the combination o f a blade holder having a hollow handle and a guard portion extending from one end of the handle, said guard portion being so constructed and arranged as to provide a pair' of flat longitudinally converging side faces joined by a curved surface at their outer ends ;l of a continuous blade coiled within the handle and trained around the convergent side faces and curved surface of the guard portion to y'expose two lengths .of the blade for use.

16. In a safety razor, the combination of -a blade holder having a hollow handle and a by a curved surface at their outer ends; of a continuous blade coiled within the handle and trained around the convergent side faces and curved surface of the guard portion to expose two lengths of the blade for use and a cooperative blade clamping element mounted on the handle for shifting movement to clamp or release the blade.

17. A safety razor having the combination of a continuous blade, a supply spool upon which the unused length of the blade is coiled, a receiving spool upon which the used length of the blade is coiled and a blade holder fashioned to provide a closed hollow handle part to contain said spools and a guard part deining .a plurality of spaced fiat non-parallel surfaces for simultaneously supporting for shaving, a plurality of separate lengths of the blade, means for removably mounting the blade spools for turning movement and for 'limiting turnn movement thereof in a direction to permlt of the feeding of the unused length of blade over the` guard part` and means for variably retarding the turning of the supply spool.

18. In a continuous blade for safety razors having a longitudinal cutting edge and adapted to be coiled on a-ianged spool, terminalsat the opposite ends ofthe'blade oonstituting means for spacing the'cutting edge from the spool flange to prevent contact of said cutting edge therewith.

19. In a continuous blade for safety razors having a longitudinal cutting edge and adapted to be coiled on a flanged spool, terminals atthe-opposite endsof the blade constituting means for spacing the cutting edge from the spool flange to prevent contact of said cutting edge therewith and functioning as a means for handlin the blade and connecting the same with t e spool.

20. In a continuous blade for safety razors having a longitudinal cutting edge and adapted to be coiled on a anged spool, terminals at the opposite ends of the blade constituting means for spacing the cutting edge4 from the spool flange to prevent contact of said cutting edge therewith and functioning as a means for handlin the blade and connecting the same with t e spool, said Vterminals consisting of a strip of material of greater width'than the blade.

21.` A spool for a continuous safety razor blade, said spool including a cylindrical body and anges at the opposite ends of said body, one of said flanges being transparent to dis play the amount of blade on the spool.

22. A spool for a continuous safety razor blade having sharpened and unsharpened opposite longitudinal edges, said spool including a cylindrical body and flanges at the opposite ends of said body, one of said flanges being magnetizedV to cause the unsharpened edge to adhere thereto, `whereby