US2051160A - Razor blade - Google Patents

Description

Aug. 18, 1936. M. B. BEHRMAN 2,051,160

RAZOR BLADE Filed Aug. 24, 1935 2 Sheets-'Sheet 2 'll-g l l.

FJ l .018" v i A` F 5o' 50' 50' 11.15 v llllllllll mvENTQR- Patented lA ug. 178, 1936 UNITED sixfriizsv PATENT- OFFICE Razon nume vllas-cus B. Behrman, Brooklyn. N. Y., assignor to American VSafety Razor Corporation, Brooklyn,A N. Y., 'a corporation of Virginia f spannen August 24,1933, serial Ne. estasi sciame. (ciao-ao)Y l My present invention relates-generally to safety 'Y razors and more particularlyto the incorporation in the'blade oi meanafor-prdetermining the positional relation of .1i-he I .5 for shavingfpurposes. The holder and-a blade. to be replaceably associated therewith,- for functioning as a safety rezar, reqiures thetthe V.aliasing.edge e'f the unice'V istics of these i'eaturesso embodied in the blade@ the shaving characteristics of the -razor can be v In one embodiment of my invention I show an 25. arrangement for attaining this objective by the incorporation in the blade ,of spacing protuberances and by the arrangement I show, the further objective is attained of a clear passage between the blade and the member upon which it seats,

invention inl' which I attain the objectives of the liirst mentioned embodiment.- and the further objective of the horizontal positioning of the shaving edge with relation 4to the guard, and this I aceomplishv as hereinafter set forth by 'making the of the blade.

- I have illustrated a stmv further-"embodiment of my invention in which a guard isA provided as' part of the blade lx1-which the twoare so as' sociated that ready access maybe had to either Ablade or guard, for purposes of cleaning. them.

Another feature of my invention is an arrange- '-men't whereby in that 'embodiment of Amy inven-f tioninwhichtheguardismadeaspartof the blade, the asociationis such as-to permito! the' employment of al double-edged blade.

` AIt will of course beundersfood that the embodiments of my invention herein disclosed, are for I\purposesofillstrationonly,andthatitmaybe `embodiedinlnanyother'iorms. such aswill read- -ilysuggesttlenisel'veato Persons'skilledin theV art.' without ',thereby 'departing from the spirit I .,gredgeoftne blauel 1 f ment;

through which lather, hair and the like can be 'I' have another embodiment of the i For the attainment of these objects and such other objects as will hereinafter appear or be pointed out, I have illustrated embodiments of my invention in the drawings, in which:

Figure 1 vis a plan view of one embodiment of 5 my invention;

, Figure 2 isan end'view of the bladeshown'in Figure l; l. l

Figure 3 is a plan .view of another embodiment Figureiisanendvi'ewofFlgureB; 'l 10 Figure 5 is a plan view of a still further embodi- Figure6isan end viewofthebladeofFigure5 with the guard in the position of use; f

Figurevisan enuviewufthebiaueerFigures1liv with the guard raisedfor cleaning purposes; .L Figure 8 is a plan view of a 'double-edged wafer Vtype blade showing a still further embodiment of my invention;

,Figure 9 is an end view of the blade of Figure 8; 2o v Figure 10 is a plan view of a singleedged blade. with stop means Similar to that shown in Figure 8;

Figure v11 is en end view or tnebiade of rigj ure 10; l 25 Figure 12 is an end .view of a double-edged wafer type blade, having stop means of varying d imensions. associated therewith, whereby various spacings of the shaving edge from` the vguard may be Obtained; 1

Figure 13 is a plan view of a portion o f a blade including the shaving edge and adjacent portions thereof, and showing the associationl therewith of guard means and spacing means similarto that shown in Figure 8;

v at' Figurelaisanendviewofthebladeshownin.

- .13: l 15 is a plan view of a double-edged blade,

having hingedly associated therewitl, -guardv means. and having further associated therewith 4o protuberances for spacing the guard means;l

Figure 16 is a side elevation showing the blade and the guard separated for cleaning purposes;

l. Finire 1r is an ena view of the bleue er Figure 45 blade from the 15,'with the guard and blade in contact; and v Figure 18 is a sectional view on the line vI8.-Il

' oLFigure l5, showing'the blade and in contact Upon' viewing ngii'res 1 anu 2 of the drawings, ,5

'it will'be observed that I have attempted to show a guard carried by shingle-edged bladein' xed A reIatIntotheshavIngedge. Thebladeisgen---- erally referred to by tbereference character A and associated as to provide a guard for the shaving edge andthe desiredpositior'ijofQthe latter with reference V'to the former?" The, guard is shown at 25, and is provided with the 26 to determine the position o! the shavingedge in one plane, and the portions 28 to determinethe position oi the shaving edge in another' plane i. e.. the spacing of this the space so provided between member 2l and? the blade will serve further to permit lather and hair to pass therebetween and thereby prevent obstructive accumulations at the shaving edge.

In enacting association of blade and guard in permanent form. I have found it convenient to proceed in the following manner. The member 24 is ilrst ciali placed in position on the blade with the shaving edge of the blade contacting with the stops 2B, and the positioning elements 28 in contact with the blade.' The two may 'then be permanently fixed in such position by welding the member 2l to the blade, as indicated in the d rawings. A blade with the'guard thus associated there- `with may be assembled with a holder oi any desired type suitable for the purpose, and it is obvious that such holder may be'of very simple construction for gripping the blade since no provi- .sion is needed .therein for attaining the proper 'relation between the shaving edge and the guard.

To assist in xing the blade in the gripping holder, I may employ positioning recesses 32 in .the blade i'or cooperation with means on. the grip- -ping holder.

In Figure 3 I show my invention applied to a 'safety razor blade of the wafer type, having'two shaving edges, each shaving edge 2li' being shown for purposes oi illustration as having la guard ilx- -plied.

edly associated therewith substantially -as in Figure l.' Therefore, for purposes of convenience of description, the same reference characters have 'been-appliedto each hal! of. the blade as lin Figure 1, except that the members are primed and the description of Figure 1 willtherefore a "ply-to Figure 3 as well. I

In the embodiments of lFigures 5,- 6 and '1; I have shown'a modication of the already described embodiments, whereby the guard portion ofthe member can be moved away from the `shaving edge 40 of the blade C for blade cleaning purposes, andthe like. This relativemovement between the blade and the guard is permitted by hinging the member M to the blade proper at thepoints marked l2 by means of pintles to which the-reference character 48 has been ap- In Figure Y I show the guard swung away from thefblade, and in Figure ,6 moved into its operative relation thereto so as to permit the parts li and l5 of the member M 'to predetermine the spatial relation of the shavingedge in reference to the guard as already described in connection with the 'earlier embodiments. s

y By the embodiments oi not only-attain all the advantages of theearliei' described embodiments, butalso the additional advantage incident to the fact that the guard can be moved away from the shaving edge of the blade. 1

abanico enanas the shaving edge 2n and is Shawnee of- 'erence to the guard is edge above the guard 2i and y mit one or the other ot the shaving edges to be `used for shaving purposes, its adjacent group `Ythe double edged type: Hiy with a guard member It win be ebrved that in tiie embodiments e: Figures'l to '1 inclusive, the means by which theI spacing of the shaving edge of the blade with retformations in the guard'carried by thev blade.

I will now proceed to describe embodiments of determined entirely by my invention wherein the spacing of the shave ing edge of the blade from the guard is determined by formations in the blade proper, and reference is made to Figures -8 and 9 wherein the double-edged blade -D is shown as provided with protuberances as arranged in two groupasubstantially parallel to and'symmetrically oi the shaving edges. As the' blade is reversed. to perone shaving edgethe group however being duplicated on opposite sides 'of' the shaving edge, to permit of reversibility of the blade.- So also, a set of blades canbe. employed with protuberances of diierent elevations so that' a selection caribe made for shaving purposes in accordance with the character of shave which it is desired to'jh'ave.

In Figure 12 I show a double edsedblade in which the group of protuberances B0 and' Si -on one surface areof dinerent elevations to-each other, and also respectively oi' difierent elevations from the groups of protuberanc'es I2 and M on the opposite surface of the'blade.

In the embodiment of Figure v8, these -'otuberances are shown tor purposes of illustration only as constituted by a series o! eyelets, the -ms of which are'turned down by a stamping or swag- 4 Y preferred manner ywithout departing from .the

broader phases of my invention.

It-will further be imderstood 4that the. blade of the topy of Figure 8=can be employed with a conventional holder wherein the. position of lthe shaving edge in a horizontal plane in reference to the guard can be determined in any conventional manner or ,in a manner already described `in connection with the previously described embodimentl y In Figures 13 and 14 I haveindicated the ap-l plication tothe guard and blade combination-oi' Figures 1 to rI ot 'spacing protuberanees. In these iigures the whole unit is indicated by G and l0 yis the blade proper, having integral'stops '82,

while 8| is a guard member with'bladestops 86.

Figures 15, 16, .17 and 18 w abla'deH of 12 therefor,- andthe blade fand the guardare coV1 united `at one side thereothy thev hinged' 'member v 14. Spacing members 18 are provided' gn 'the' blade toy secure the proper The function of these various elements will be/ciear'from what nes preeeded, that or the nii/rle: course;

. being te permit spacing or `the blade edgeenci j guard for purposes of cleaning, while the' hinge, 4in connection with the spacing members provides Figures 5, 6 and 'I I for bringing the blade and guard together so as of Figure 1, as the doubleA edge ofthe blade 'is makes this construction useless for obtaining accurate spacing of both edges 'fromithe guard. Such accurate-spacing may be secured by suitable assembling devices such as are well knownin the art, which will assure proper placing of the blade in relation to the guard.

It is obvious that my invention is applicable to razor blades of various types, although it has been shbwn, by way of. example as applied to wafer type blades. A Havingvthus described my invention and illustrated its use. what I claim as new and .desire to secure by Letters Patent is:

l. A razor blade having a shaving edge, a member inseparably associated with one of the flat 'surfaces of said blade and carrying means,

in adjustable relation thereto, adapted to overlie said blade and to position said shaving edge in relation to the surface to be shaved, and meansinterposed between the surface of said blade and said positioning means for limiting the approach of said positioning means toward the blade surface, 'whereby the 'spatial relationship between the shaving edge and the positioning means when shaving edge and the positioningmeans when it is in a iimiting position is determined and invariable. Y

3. A wafer type safety razor blade having a shaving edge, la member inseparably associated with the surfaceof said blade and carrying guard means adapted to overlie said blade and pivotal- Y l! related thereto for positioning said shaving `ingedgeinrelatlontothesurfacetobesliaved,V

edge in relation to the surface to be`shaved, and cooperating means inseparably 'associated with xsaid blade and positioning means and podtioned therebetween, for limiting their approach to each other, whereby the spatial relationship between said shaving edge and said positioning means. when it is in its limiting podtion, is predetermined and invariable.

4. For use with a safety razor, a wafer type blade having a shaving edge, a member inseparably associated .with onev of the ilat surfaces of said blade and carrying adjustable means adapta ed to overlie said surface and positionV said shavand means cooperative between saidblade and said positioning means for limiting the approach of said positioning means toward thesh'aving edge, whereby the spatial relationship between theshavln'gedgeandthepositioningmeans' when it isina limitingpositionisdeterm'inedand 65 invariable. l

5. For use with a safety razor, a blade having a shaving edge, a member inseparably associated with said blade but positionally variable in relation thereto, and carrying means adapted to position said shaving edge in relation to the surface to be shaved, means interposed between said blade and said positioning means for limiting the approach of said positioning means toward the blade surface, and means adapted to abut the shaving edge when said positioning `means is in its limiting position in relation to the blade surface for limiting the position thereof in the plane of the blade surface, whereby the spatial relationship between the shaving edge and the positioning means when it is in a limiting position is determined and invariable.

6. For use with a safety razor, an integral shaving element constituted by a wafer type blade having a cutting edge, a guard member, and uniaxial hinge means uniting said blade and said member along one of the edges of said member,

whereby said blade and said member may be brought into overlying relation for shaving purposes, and may be moved about said hinge means so as to bring them out of said overlying relation -for cleaning purposes, said hinge means being of such character that when said guard member is brought into adjacent overlying relation to the blade it will always assume a predetermined relation thereto, and the axis of said hinge means being disposed parallel to said shaving edge.

7. For use with a safety razor, an integral shaving element constituted by a wafer type blade having a cutting edge, a guard member, andv uniaxial hinge means uniting said blade and said member along one of the edges of said member,

whereby said blade and said member may be brought into overlying relation for shaving purposes, and may be moved about said hinge means so as to bring them out of said overlying relation for cleaning purposes, said hinge means being of such character that when said guard member is brought into adjacent Aoverlying relation to the blade it will always assume a predetermined relation thereto, and a rigid back vpermanently associated with said blade.

8. For use within a safety razor adapted to removably receive, and to support for use in shaving, an integral shaving unit, said unit consisting of a wafer type blade having at least one shaving edge thereon. and a guard element' hingedly united to said blade, said union of guard element and blade being permanent, and said guard element having portions thereof adapted when in one of its podtions to overlie the surface of said blade in predetermined relation and other portions thereof so positioned in a predetermined relation to the shaving edge as to determine its positionrelatively tothe surface tobeshaved.

and when in other positions-to be spaced from theblade surface and shaving edge,\for purposes of cleaning the blade, and said-#integral .unit having portions thereon adapted to engage complementary portions 'of the holder when it is in- HARCUSB.BEHR I IAN.

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