US2008589A

US2008589A - Safety razor

Info

Publication number: US2008589A
Application number: US667273A
Authority: US
Inventors: Wilfred I Ohmer
Original assignee: Individual
Current assignee: Individual
Priority date: 1933-04-21
Filing date: 1933-04-21
Publication date: 1935-07-16
Anticipated expiration: 1952-07-16

Description

W. l. OHMER July 16, 1935.

SAFETY RAZOR Filed April 2l, 1933 R R mw N0 Ml. 0 fm 6 M, m c/J f 9 m 6 5 6 M l @o 6 du, 6 4/ 0 3 3 Z Z Patented July 16, 1935 2,008,589

UNITED STATES PATENT OFFICE sAFErY R'Azoitf Wilfred I. hmer, Dayton, Ollio Applicationnpr'il 21, '1933, serial 111,667,273 2 Claims. (C1, 30-12),

This invention relates to improvements in safe- Figure 13 is a view Vtaken at right angles to ty razors, and has for its object to provide a safety Figure `1,2. razor having a rigid guard and means operating Figure `14 is a top plan view of the head of. on the guard, adjacent the center thereof, to press the razor. 5 a blade against the guard and tofalign the blade Figure 15 is a planview showing the shank orl 5 with remtion to the guar@ Y l stem .attachedto the head, .and having on each It is also an object of this invention to provide of two opposite edges a rib. a safety razor having a rigid head, a shank or .Figui'ele t is a section on the line I 6-|6 of stem extending from the head, and meansk on Figure `15.,. d .4 the stem or shank to engage a blade pressed Figure 17"iS a View Similar to Figure'l but 10 against the head and align the blade with reshowingsl stern rib in which the'part of the rib gard to the head. I 1 adjacentfthe head is enlarged to for maligning It is a further object of this invention to proaud Seating Cams `fOr a blade and a guardvide a safety razor having ahead with a stem Figure 18 iS a section on the line `I8`I8 of or shank thereon, ribs on each of two oppositeV -Figui`e`17-v 15 sides of the shank, and means to, press against Figure 19 is a View showing one of the toothed the' head a'guard with a blade between thehead edges of the guard. and the guard, said vguard and blade each `having Figure 20 is a plan view of the guard. a hole corresponding 1in size and shape tothe ,Figure 21Sh0WS a dOuble edged blade adapted 20 size and shape of the shank with the ribs thereon. te be used With the guard shown in Figure 20 It is particularly the object of this invention to .Figure 22 ShOWS a head Similar to that shown provide, in connection with an arcuate guard, `a i111 Figlllfe 17. but With the I'ibS arranged transresilient'blade and means engaging the guard VeISelY 0f JEhe head,

and the blade to flex the yblade and press it Figure 23.sh0ws aguard with ahole therein to Ale 25 against the guard, said means engaging the made receivethe shank and the ribs of the head shown 25 adjacent its center. 1 e in Figure 22.

. These and other objects and advantages will Fleur@ 2% Shows a blade having a hole therein appear from the following description 4taken in Corresponding to the hole in the guard of Figconnection Ywith the drawing. l lullige 2I31. alrld cfrterponding in shape and size to Referring to the drawing: e s,l an anA e ribs of the head shown in 30 Figure l is a side elevation of a razorembody- Fgulezz- .y Y 4 ing the presentinvenon, l 'Frgure` 25 1s a fragmentary view. showing a Figure 2 isan elevation Vtaken at right. angles mOdifd folml 0f Shnk. l to Figure l. e l Y A y i Y In igures` and `a finished razor isfshown. 3s. Figure e is a Slee elevation of the heed member This razor is composed 0f an arcuate head l, a 35 of the safety razor, K d guard e and a handle l2. The head has at each Figure 4 is an end elevationof the head shown end, 0119118 edge., a `laterally DI'OJ'SCiIlg Cam 2- in Figure 3. 1 1 Y 'I hese camsvare connected along one edge by Figure 5 is a bottom plan view of the head, means 0fa're1at1ve1y Sha-110W ange 3- showing the shank and aligning lugs on the shank Exten-amg n 'om the cenfje' 0f the head and-0X1 40. adjacent the head. k the concave side thereof 1s a shank or stern 4. Figure 6 is a section on the line 8-'6 of ^Fig` As shown mepigures 35 and 7 .this shank is flat um 5 d tened on two sides so that its two opposite sides Sarevvparallel. Atthe point where the shank Flgure 7 111s a'dVlW Slmlllar to Flgure 5 but is joined tothe head there are lugs 6, one be- 45.. Showing V-s ape aignlng ugs: t tween each end of the'hea'd and the shank and Flgure 8 1S a Sectlon on the hue 8-8 of F 1g'. attached to the shank and to the head to provide ure e e a. rmer union between the head and the shank, Figure 9 le an edge View 0f, the guard memberf and alsoV to.V provide means for properly seating glgure 1s a plan new oftlheblgurddmenetrand aligningth raor blalde ald the guardwith 50` igure SaVleWS OWIIlg e a ea apre 0 respect to the ea T ese ugs, as shown in be used with the guard 0f Figui-e 10 and the heads Figure 7, are V-shaped, as indicated by the nu-V shown in Figures 3, 5 and 7. merall 1, to produce a camming effect to more Figure 12 is a front elevation of a modified form accurately seat Aand align the guard land the of-razor, blade with respect to the head. a I 55 the guard.

end and threaded to engage `the threads of the the -concave side thereof'a `stem or shank I4.

l stem 4, are shown used in connecti'onwith an arcuate head and an arcuate guard, but these elements may be used with a at head and a dat guard and may be used with the ilat head and the ilat guard and align the guard and the head with relation to theY blade Withoutany other cooperating element, such as Ythe cams`2 and the flat sides of the stem. The flat sidesof thestcm are used principally for aligning the guard-and the blade with respectto eachother before they are pressed upon thehead. f*

In Figure 9 `there is shown a rigid arcuate V guard with the 'usual teeth onone-edge thereof.

This guard is also shown inrFigure ,10, and has has thereinan elongated opening ,Gr.slo't 4oomposed oi a hole 9 and oppUsitely disposed notches I0. This hole and these ynotches forman elongated opening which extendsv longitudinally of n v A similar opening is provided in the blade shown vin Figure lil. Y

i These openings in the ,blade and the guard correspond substantially iny 'shape and y'size to the shank 4 and the lugs '6 and The blade of Figure llis 4indicated bythe numeral I I. VThe .u blade and the guard are held upon the' headrby means oi the handle l2, VWhich fis hollowjatone shankorstem il. a

In Figures l2 and 13 there is shown a double edged blade, a guard, a handle anda head for gripping a double edged blade. The headis indicated by the numeral I3 and is shown to be arcuate, and has extending from the center of On each of two Vopposite sides of this stem `or shank is arib I 5. As Ashown in Figures "'15 yand 17, each rib is between vthe shankandrone l`end of the head. These ribs jare suiliciently long that they Willjguide and V"align the 'blade and the guard during "theilexing :of theY blade,"- and after the blade has been pressedagainst itl'iefliiead by the guard or against the Vguard bythe head. In other words, these ribs servejat all times to align the blade with respecttothe' "guard Y'and the guard with respect to the head. Y i, 1*'

`In Figures l? and 18 ytheserib's are -shownitfo be ilared at ltheir lowerv ends adjacent Lthe head to form cam surfaces 16' for' more accurately and positively aligning the "blade 'Withfrelaition tothe guard and both with relation tothe head. Y In Figure r9 there is shown anarcuate guard I1', which has inV its center around `hole I8, zand on'eac'h'oi -two opposite edges ofthe hole, notches I 1'9. These notchesand'the'holeform-'an-opcning through the'guard vcorresponding vin size Vand shape'to the stern Ill and thefribsd. The yblade 2'0 shown in Figure 2l Vhas a similarlyshaped hole I8 and notches IS. The'hole I8 'and the notches I9 'the blade and the guard receive the stem Ill and the ribs VI 5 when they are vpositioned v'upon the head. V i

` Inl'igure 22 the head `21 has a stem thereon 22, which :has extending from 'each of two -opposits `sides a rib {2i-3.V "nach rib ihn-carats ena,

adjacent the headjapair v"of Ccam 'surfaces-lll formed by flaring out the end of the rib. This rib is similar to the rib shown in Figure I8, with the exception that it is on one of the lateral sides of the stem instead of being on the side adjacent an end. V

In Figure 23 there is has in its center a round hole 26.

shown a guard 25, which The guard is cut away at each lateral edge of the hole to form a notch 2l.Y These notches and hole 26 forman oblong opening through the guard, Which has its longest dimensiontransverse of the. guard.

In Figure 24 there is shown a razor blade 28, which has a hole and notches similarV to the `guard shown in Figure 23. The hole and notches in the'blade and the guard are adapted to receive the stem and the ribs on the head shown in Fig- ,ure.22.

When the blade and the guard are placed upon the head, the blade being at and flexible rests upon the ends of the head, While the guard rests upon the'blade intermediate the ends of the head. 4The ribs are of sufficient length that they will v'endend' through the notches 21,-v with the blade vresting upon the ends of the head and the- VWhile the blade is shown as flexible it may be:

arcuate in shape, corresponding to the shape-'of the vguard and the lhead. And While the guard and "theV head are shown to be arcuate they may be auand carry'a stem such as the stem I 4 with the vribs I5 or -23 thereon for properly positioning the guard and the blade with respect to the head.

- The word stem is used to designate any projection on the 'head of such a shape that it will align' a bladeand a guard on the head by tting .in holes ltherein of similar shape and size as the projection. vThe handle may be threaded on the projection or otherwiseV attached thereto soV it will lt over fthe projectionand press the guard and the `blade :against the head.

In Figure 25 the stem Ma which is on the head I3, as shown in Figure Y14, is hexagonal in shape, as indicated by the numeral I5a, and is adjacent the head for tting in similarly shaped holes in the lbladc and the guard. The blade and the guard may be arcuate or flat;V so may the head be either arcuate or dat.

It will be understood thatl I desire to comprehend'wlthin this Vinvention such modifications as come within the scope of my claims and my Vlnvention.

. lHaving thus fully described my invention, what I claim as new and desire to secure by Letters Patent, is:

l. In a safety razor, the combination of a cap and a guard, a stud depending from-.the under side of saidcap, a blade` a vhandle cooperating with said stud to4 clamp the parts in assembled relation, aligning projections of relatively uniform width extending from opposite sides of said stud and being joined to said cap at one rend, said'end'of `each projection terminating in'ilared, camming portions, said Aguard and blade `having apertures substantially complementary in shape to the cross-section of the said stud and projections, .the portions of said blade aperture engaging said projections being wider than said prg` joetons and being adapted to roughly align said blade with said cap, the flared ends oi said projections being adapted to engage said wider portions of the blade aperture to accurately align said blade in said assembly in the final clamped position of said cap, guard and blade.

2. In a, safety razor, the combination of a curved cap and guard, a stud depending from the under side of said cap a flexible blade. a handle cooperating with said stud to clamp the parts in assembled relation, aligning projections of relatively uniform width extending from opposite sides o1' said stud and being joined to said cap at one end, said ends of each projection terminating in ilared, camming portions, said guard and blade having apertures substantially complementary in shape to the cross-section of the said stud and projections, the portions of said blade aperture engaging said projections being wider than said projections and being adapted to roughly align said blade with said cap, the ared ends of said projections being adapted to engage said wider portions of the blade aperture to accurately align said blade in said assembly in the final clamped position of said cap, guard and blade.

WILFRED I. OHMER.