Патент USA US2114679код для вставки
April 191, 1938,‘ A. GALBRAITH SAFETY RAZOR ‘ Filed Sept. 9', 1936 , I 2,114,679 $114967? 1 Patented Apr. 19,1938 ' rig ‘ ’ uNiTEn s'ira'rss ‘Y »- rarer. ‘ 2,114,679 SAFETY RAZOR Alexander Galbraith, ' Dalmuir, Scotland’ Applicationseptember 9, 1936, Serial No.'99,9il9 , ' In Great Britain'ilctcber 2, 1934 (Cl. 30-71) This invention ‘relates to safety razors, and the point or points‘where the blade is ‘secured, has for its primary object to providea safety may be obtained by making provision for in creasing or decreasing, at will, the distance from » ‘razor in which the blade may have a resilience v , _, Y 5 Claims. , comparable with that of the blade of a hollow 5- grouiid razori ‘‘ ‘ _ ‘ ’ ‘ - As is ‘understood, safety razor blades are usually clamped more or less rigidly with con ‘ ‘ ~ . siderable "deformation, between guard and end cap elements, thus producing a heavy or inert 10 feeling in the use of the razor. In effect, there is probably no existing safety razor which has the (resilience, tang and clean-cutting action exper . ienced with the use of a high quality hollow ground razor. “ 15‘ the cutting edge or each cutting edge. of the _ blade to the adjacent edge or edges of the end 5 cap. ~ , In a practical construction, according to the invention, there may be provided, inter alia, (a) a variable amount of adjustment between the guard and end cap elements, while, at the 10' same time, the greater part of the blade is free to ?ex transversely of its plane between the said elements; a ' . g (b) means for adjusting the freedom affordedv ‘ For a safety razor, to give the same satisfac ’ > tion as a hollow ground razor at its highest point of ef?ciency, the blademust be afforded consid ' . erable freedom, 1. e., the blade must be so mount ed. that it has freedom to ?ex transversely of 120 its‘ plane in at least the direction away from the I guard element.v A safety razor blade answering ' to the blade to ?ex transversely of its plane, said 1,5,, means ,permittingthe blade to be gripped‘ canti- ’ lever fashion at either end, 'or to be gripped 10-’; " cally at a point or points shiftable to distribute the permissible resilience, with a positive grip orv " n a sliding grip; ' . p 26 (0) means for adjusting the extent of the cut- . ting edge or each cutting edge of the razor blade ‘ these conditions‘will retain its e?iciency much behind the guard and/orend ‘cap elements, ‘longer than the ‘usual, safety razor blade. Ac The blade may be held positively or with a 1 cordingl'y,'over any-given period, renewals are‘ ‘"25 less and economy results,lapart from‘thefact - sliding grip at one end, and while so held may, 25“ _ yet have some degree of freedom at that end: that fall the qualities >_of .a high class hollow ‘ground razor are at the disposal of the user, ' between’ the guard‘ and end cap elements, ‘and. the permissible ?oating movement of theubladet I without sacri?ce of the safety properties. > These requirements are ful?lled by the pres-5 ‘ ‘ a ‘ 30(ent ‘invention, which provides a safety razor having a ?exible blade adapted to be accommo dated between a guard element and a cap ele ment in. such wise that the blade is free'of. re straint by the cap element for at least the great I , 35 er part of its length or breadth, the, blade'hav between the said elements greater at the'other end. , l ' . ~ 361 Again, the blade may be held at two points on the same side of a median line parallel‘ to the edges of the ‘blade, corresponding to’two of the points indicated above, and again may have such degree of freedom as is ‘permitted by the spac- 3'31 ing. freedom to ?ex transversely of‘ its plane in‘ , ing of the guard and end cap elements. ‘ at least the direction away from the guard ele "ment, within the space between said elements. , When the blade is held at one end the blade Again, the blade may be held only at a point located centrally of the blade, or in intermediate positions, between the centre'and either end, 40 is free to ?ex cantilever fashion. With the blade held at one or more selected points resil with adjustable ?oating movement at either end, 40 V‘ a sliding grip permitting the blade not only to the user, it being understood that any one set ting of the blade may suit a particular strength 45‘ of beard and that strong beards will require less as before. > ' The blade movements described may be ob ‘ ience may be distributed over the blade as de , sired. Again, the blade may be held locally with v tained singly or in combination as desired by “ ‘.45‘?ex 1 transversely of its plane but to perform " limited sliding movements in its own plane. Further, inthe latter case, the. blade may be free also to perform angular‘ and/or orbital move ments in its own plane. 50 Adjustable blade-‘engaging or movement¢re straining means may be so arranged and dis tributed as to give any desired resilience to the ,blade. 7 give or resilience of blade than soft beards. The invention is. illustrated in the accompany ing drawing in which Figs. 1 and 2 are a vertical section and a plan view, respectively, showing, 507 by way of example only, a practical construc tion of a safety razor head. Fig. 3‘is a side ele vation showing the razor head connected to a . In addition, where the blade is restrained at ' I 55 one or more points, variations in resilience, from handle. I -' I In the construction shown the cap 6 is adju'st- 55 2 2,114,679 ,7 ably connected to the guard 2 by a screw 'l'pene-v ' and ‘free to move toward and away from said trating the guard 2, the cap. 6 being tiltable on’ guard, and means for ?xing a portion of the blade the ball headof the screw 1 so that it may be , longitudinally of saidfree portion against move adjusted universally relatively to the’ guard 2. 1A: ment toward and away from the guard. spaced pair'of micrometer screws 8, 9 threaded I upwardly through bosses It on the guard 2 pre sent at their upper ends pintles H, 52 engaging arcuate slots [3, l4 in-the cape, the slots I3, M being concentric with the screw 1, so that the cap 6 may be adjusted angularly, aboutthe' axis of'the screw 7. 'The screws I, 8 and S penetrate ‘a slot [5 in the blade 3, the screws 8, 9 present ing collars‘ I6, I‘! where they penetrate the the slot H5. '2. In a safety razor, in combination, guard and cap elements, meansfor maintaining said guard and cap elements at least partially spaced apart’ a distancegreaterthan the thickness of a blade to beraccommodated between said elements, a ?exible apertured blade accommodated between 10’ said elements, means penetrating said blade and adjustably connecting saidlelements for per-' mitting relative angular adjustment of said ele The screws 8, 9 are formed beyond ments and means engaging said bladeqat select~ ' the collars with laterally projecting tongues l8, able points to maintain 'a‘ part thereof fixed I9 engageable selectively with the blade 3 or "against movem‘ent'toward and away from said , with the cap 6. ‘ ' g " v elements and for controlling the-freedom of an-, The handle may be in the form of an inter other part of the blade to fle‘xrwithin the, space I nally threaded, tube ?tted to the free end, por— between said elements. .- ' tion of the screw 1. By’ suitable adjustment of} the. screw :3 the b1ade'3 maybe nipped against the guardv 2 by the tongue is while, the screw 8 may be adjusted, with the tongue l9 bearing against the inner face of the cap 6. to vary the range through which the blade is free to flex. ' i V ' The angular setting of the tongues l8, l9 also ' affects the resiliency of the blade by virtue of the , eccentricityrof the tongues l 8, ea, ~V V, V 30 The blade may be so lightly held that it is free to slide in its, own p1ane._ ' ' ' It will be obvious from the foregoing that there exists a wide variety of settings and adjustments , for the blade, in all of which; the blade is free to, 35‘ ?ex'in the'direction away from. the guard 2. h , > ,3. In a safety razor, in‘ combination,‘ guard '20 and cap elements,‘ a ?exible lslotted'blade'aca commodated between said elements, a screw pen: etrating the slot insaid blade and-connecting said-elements, spacedsscrews adjustably ?tted to‘ one of said elements and engaging theiother of; 25 said elements with freedom, ‘said spaced‘screws penetrating-theslot in said blade, and tongues projecting laterally from said last 'mentioned screws for‘controllingthe position’ of the, blade. ii. In a’ safetylrazor, in combination, guard 3.0, and cap elements, iii-eansrlifor maintaining said guard and capvelements at least partially spaced apart a distance greater than‘the thicknessof a bladetobe accommodated between saidelements, a ‘?exible apertured blade accommodated be? tween said elements, l‘ means penetrating said It will be seen that the tongues i8, i5 are en gageable selectively with the undersideof the cap - blade and ' adjustably connecting. said elements - 6 whereby to exercise control of the position of for‘ permitting relative angular adjustment of 3551' the cap 5 relatively to the guard 2, the cap 6 be-‘ , said’elements, and means engageable with said 40 ing pull-ed towards the guard 2 by the screw; 1. Manifestly, the blade may be;gripped at one end blade ‘at selectable points between its ends to maintain a part thereof ?xed against movement or the other between the guard and the cap which toward and away from saideleme‘nts and for con are maintained in spaced relation at the free end,v trolling the freedom of another part of‘ the blade of the blade by the tongue adjacent thereto. to ?ex-Within the space between said elements. Manifestly, the blade may be gripped at or 45 5. In a safety razor, in combinatiomguard and near' or along one longitudinal edge, so. that it 7 cap elements,‘ a flexible Tapertured blade ‘accom . may betilte'd out of its plane to .a variable angle modated between said elementaa screw -pene-, widthwise' between the guard and end cap' ele— , trating vsaid blade and,adjustablyr'connectingjsaid ments. A handle 20 maybe secured to the razor elements for’ permitting relative" angular; adjust- ' 50 head by screwing it onto ‘the projecting end of ment. of, said elements, and means .engageable 60. the screw’ 1, as shown in‘FigVSI. ‘ ' with one face of said blade and- with'theiadjacent face of one of said elements, said means being ad justable to’ vary the point of engagement with cap, means for spacing the guard from the cap > psaidjblade and to varyla dihedral angle contained . throughout at least a portion of the length there "between said elements by movement of the 'por I claim:— ' -. V 1,. In arsafety razor; in combination, a guard, a of, said space being greater than the thickness of tion of the element engagedv therebygwith respect 7 a blade to be positionedv between said guard and »' to the other ~‘element to ‘a ’ greater extent than cap, a blade between said guard and cap, said blade having a portion extending into said space the remaining portion thereof. ' " ALEXANDER GALBRAITH. , '