US1895183A - Clipper blade control - Google Patents

Description

Jan. 24, 1933. L. J. WAHL CLIPPER BLADE CONTROL Filed June 22. 1931 ll J fz uenl or j l oJZMgZLZ Patented Jan. 24, 1933 UNITED STATES PATENTI'ISVOFFICEIY LEO 'J'. WAHL, OF STERLING, ILLINOIS, ASSIGNOR TO WAHL CLIPPER'GOR-PORATION, OF

STERLING, ILLINOIS, A CORPORATION OF ILLINOIS CLIPPER BLADE common Application filed June 22,

My invention relates to clippers and has for its principal object the provision of means for controlling the relative positions of the comb, the cutter, and the clipper frame whereby to improve the flexibility of the clipper with respect to the adjustments for varying the closeness of cut by the clipper.

In using clippers, barbers are faced with the problem of evening out the changes in length of the hair between that cut with a fine or close cutting clipper and that cut with a coarse clipper, as well as the change from the clipper to the shears. Various means have been adopted to make a single clipper operate to out both fine and coarse and gradually change from one to the other, and it is with this line'of development that my invention particularly concerns itself. A

One purpose of the invention is to provide a novel means of varying the relative relation of comb and cutter to change the closeness with which the clipper will cut the hair.

It is also a purpose of this invention to provide a novel operating device for adjusting the comb and cutter of a clipper which makes it possible to readily adjust the length of cut of the clipper without loosening or changing the hand grip thereon.

Another and more specific object of the invention is to rovide a novel mounting whereby the com is mounted to swing with respect to the'frame, and the cutter blade is so mounted as to follow the angular position of the comb with respect to the frame without seriously changin the normal pressure between the cutter an comb.

Other and more specific objects of the invention will appear as the description proceeds in connection with the accompanylng drawing wherein the preferred form of the invention is shown.

In the drawing- 1 I V Fig. 1 is a side view of a clipper embodying my invention;

Fig. 2 is a top view of the clipper showingv the relative position of the operating means;

Fig. 3 is a longitudinal section of a portion 1 of the clipper;

Fig. 4 is a section substantially on the line 4-4 of Fig. 3; and

1931. Serial No. 545,964.

is of the electromagnetic typ'e'having an armature 9 and an electromagnet 10 of aiwell known type by means of which the armature l9 is vibrated to move the cutter blade by. means of the connecting element 11.

construction is such that armature 9 and element 11 .yieldingly press the-comb and cutter together. This, however, is a well known construction in this art'and may be of any.

suitable type desired. 7 My invention concerns itself particularly with the relation between the comb 7 the. cutter 8, and their mounting upon the frame 6 together with the means whereby they mayv be adjusted.

' Inthe form shown in Figs. 1 to 4which is the preferred form, the comb is mounted upon a U-shaped member 12, theupstanding legs 13 and 14 of which are pivoted as by partly in sectionof a i 7 now indetailt o the drawing,

The

means of the screws 15 and 16 to the frame Suitable set screws such as indicated at 17 serve to lock thescrews 15 and 16 in position so that they mayserve as pivots on which the U-shaped members 12 can swing.

shown, the cutter blade 8 isslotted at 18 to receive the rounded end of the member, 11 so that this cutter blade canswing around this rounded end and thus follow the'angular position of the comb 7 when it is being adjusted. Comb 7, however, moves about'a" much longer radius than the cutter 8 so that in changing their positions from that shown in Fig. 1, forexample, to that shown in Fig. 3, a relative sliding movement will be caused between them to advance the comb'teeth beyond those'of the cutter. Naturally there'is some change in the position of the cutter with yieldingpressure between these two elements respect to its driving member "11, butv the i permitsof this'small change without making any appreciable change in the pressure 'be-' tween the comb and cutter.-

I find, however, one thing to behighly advantageous in this regard, and that isthat the pivot point for the U-shaped member is placed substantially on a line. running perpendicular to the center of the opening 18 when the cutter 8 is in substantially the cen-, tral position of its movement, and in this why the changes in angular position of the comb t and cutter make the least changes in the pressure therebetween.

1- From the above description, it is believed to be clear that by changing the angular position of the comb and cutter with respect to the frame one of them may be madeto slide relative to the other and thus, vary the coarseness of the cut on account of'the shape vo the- 291mb ade us d wh ch inc e se fa y rapidly in thickness from the comb points thi st-d he bac e d s me G ahse h an ula pos -ion o the comb and cutter with respect to the I have devised a means which is simple andiefi'eetivefor operating without the necesoflooseningthe grip upon the clipper.

7 1 "Ihis means consists of the thumb; piece 19 V whieh as shown has a. portion 20 extending a r s. t ten f a c ipp r ram an whi .issecured by,- means of the screw 15to the lug 1 t t Ih r ber 12-4 d en 1 2 serves o Preven r e angu a mwement etween th humb P e e 9 d th leg 13 so that they must move in unison. V

7 It isbelieved to be obvious that with the hand grasping the frame 6 thev usual manner holding these clippers thumb piece 19' her ad ly pr s e e eva ed. i h the 7 thumb without the necessity of releasing the gr p up t lipp In Fig.

with tlie" exception of its tlfihSYerse movemer t.

r n order e operate thistype of adjustable omb, member- 19 fits in. a slot 22 in the comb by means of the extension 23 thereof.

- With thistype of construction, it is necessary,

as indicated atf24; in Fig. 4: and thus preof course, thatthe'cutter blade 8,01 8" be cut 7 away back of the teeth to the narrow'width vent any. possibility of the cutter-itself strik- 'inglegs. l3- and; 14 or the extension 23.

, -From the above description, it is believed 1 that the. construction and advantages of this 1 device, will be clearto those skilled in this art. It is, also believed, to be obvious, that various. modifications may be made without departing fromfihe scopeof invention as .v my inve ntion, whatl claim as new and desire to secure by Letters Patent is Inccmb natioh,a l ppe t -mea I 6- n' 1,e a ns swingingly mounting said, comb. on

here n. et forthi Having thus descr ibed onespecific form. of

said frame, a'cutter blade interposed between .v i 3 Q -m$mber 9- as I adapted: t a ligh y fi r t con ru t in which the comb. 7 T- is. slidable with respect o he rame 6? st a f vi h le, n in which cutter 8, of course, remains fixed the comb and the frame, and driving means" for said blade mounting said blade for angular movement with respect to the frame so that the blade and. comb are both angularly movable with respect to the frame, the radius on; whichthe comb swings being ma-. terially greater than the radius on which the cutter swings.

2. In combinatioma clipper,-fren1e-,a:0mb,

means. swingingly mounting said comb on said frame, a cutter blade interposed between the comb-and the frame,'and driving means for said blade mounting said blade for an- "gular movement with respect to the frame so hat the bla nd com a e oth. an

larly movable with respect t0v the frame, the a ius On Gh the coihb swings b ng ma.-

terially greater than theradiuSO l. Which th c'u r's ss, aid first. named means e: ing pivoted on the forward end of} said fra-rriej and'having an operating portion projecting Q l' th' ati 0 th immey I .7

3, In combinations a clipper frame, acomb mounted thereon for angular; movement relaq tive to. said frame, a cutter. blade bearingon said combv and-reciprocable to and fro thereon, a ri ng mean v fo a d cut er blad upon which said blade is 'anguljarly movable ih r e to low the' ombi, mean fbrm v-,,

ing t om an c er l de to cha g heir ang l ation, oii'th ram the mounting of the; comb causing itl to move far her endw se for gi ang lar disp a e- 11219111; han at G itt r blade whereby to cause; relative Sliding Q .II .e I/lh betw en the comband u te la i 4.111 a hair clipper a clipper frame, a omb. liloun ed the e n f r gular mo m a relative, to said fra e'a cutter b a e 7.

a ng n e mbancl re iprocab ie oan f t eon,.. nd me ns. mountin id l ter blade for angularmovement -relative to mean p rota y nihnn ins. a zmb n said I frame, acutter blade Cooperating with said comb and reciprocable to, and fro thereon, a d mean pirQtally; m nt ngsaid. a e with respectto said frame, thef-pivotal'axis of the blade being between the comb-and the piv laxis f t mb, 6. In a clipper, a'clippe'r'frame acomb,

Y means, p v elly mounting said comb on said fram ,v acu te f blade. cboneratingw t s id comb and reciprocable toffa-ndfro, thereon,

and driving means forsaid blade-providing a p vo a m u tins heref r tween the comband its pivotalaxis. I j

7. In aclipper, a clipper frame, a comb,

means pivotally mounting said comb on said frame, a cutter blade cooperating with said comb and reciprocable to and fro thereon, and driving means for said blade providing a pivotal mounting therefor between the comb and its pivotal axis,- the pivotal axis of the blade and comb being substantially on a line perpendicular to the blade when the blade is in the central position of its movement.

In witness whereof, I hereunto subscribe my name this 12th day of June, A. D. 1931.

LEO J. WAHL.

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