US2318351A - Shaver - Google Patents

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F I H Invent or v-.

6. MAM;

A. ALEXAY SHAVER Adalberfi Alexa-=19 Filed Dec. 16, 1942 Iol 'May 4, 1943.

Attorngg I Patented May 4, .1943

UNITED STATES PATENT OFFICE.

' 2,318,351 I y I v Adalbert Alexay, Schenectady, N. Y., assignor to v v General .Electric Company, a corporation of v 1 New York Application December is, 1942, Serial No. 469,206

4 Claims.

The present invention relates to shavers of r the type having 'an outer cuttinghead provided with spaced hair-receivingopenings and an inner cutter for shearing hair projecting through the openings. In'such shavers only part of the cutting head is open toreceive hair, and to perform a thorough shaving operation it is necessary that the user repeatedly move, the head back and forth over the skin surface.-

The object of my invention is to provide an improved shaver in which the cutting head is given a. power operated scanning movement so as to expose all-parts of the skin surface be-f heath the cutting head to the shaving" action.

For a consideration of what I believe novel appended thereto. 7 I

.In the accompanying drawing, Fig.1 is asectional front elevation of a shaver embodying my invention; Fig. 2 .is a sectional side elevation; and Fig. 3 is a'n'end view of the cutting'head partly broken away.-

and my invention, attention is directed to the following des'criptionand the claims v v fixed" to the casing and having; c

Referring to the drawing, there is shown a shaver having a split casing comprising parts I and 2 clamped together by screws 3. Within the lower end of the casing is an electric motor having a shaft 4 driving-a transversely'extends v ing cam shaft 5 through bevel-gears 6 andfl and driving longitudinally-Qextending jshaftfs' through reduction gearing'Q, 10 f jIhe Loam I shaft {is Journaled inTbossesff-H 'andcarries LL -cfl p a t '1 d- 1 rocker arm's ';l4 pivoted on pinsfi'ikeiitending if ,betweedwsses l6. Theshafts '8} which rotate ;at a slowerspeedthanithe 'cam shaft, are your-- al cuttine he d l; riie-uttipg'. liea'd i s nade or trim sheet steel; folded 1,811?

the St that it will beguidedfiiitggth p 30' as; 13,. of. f

in ei bas :tTIan'd" iv the upper end are lrovidedf with "i tegralccentrics, l8 jourhaled witmnlth-icutting head are ilongitudinallyjf sli ing cutters-each of -'which -co1n p'risesfa,ha se 23 guided on-the sidesof the cuttihg-1-head,' and I upstanding. blades 24 bearing against the inner f are being'reciprocatd at much high 55 or shearing surface of the'cuttinghead. The

cutters have a ball and'socket connection 25 with the upper ends of the rocker arms QM and are held against the inner surface of the cutting head by compression'springs Miv on the arms I.

face of theicutting' head through t the lifeof the shaver. it all of theggblade' gwere rigidly mounted in a single har there would' be a tend-'- encyfor the head and b lad es to wear at the center" where most of the, fis-,- done,, re-

efiectiveness of the. .sh'earing acti 4 sulting in a clearance which would 38. the

The cuttinghead fi' i m'lfQllnded y 21' I ing the ends. of .the cutting Ih ea fa combs 29 extending along each side with outer ends 31., shaped to, lift hair surface of the skin andg'guideitto th'ehirttinE head, and with inner ends ,32 spaced fromrand overlying the lateral e ges. of As, the shaver 'is moved back the outer and (inner. ends comb tend to lifh-lliaif'ofl; th

ting head. .The springsj' "-"of the combs grip the, skinjand hold" it tion-- try, and the skin betweenthe contactwith the. cuttinghead but -.o'10,' wide genuine-bitch eta-the uire v g er speed from 7,000 to -'10,'000*strokes a minute, n *co- Len -T ting head. The combs have spaced teeth :30 offhe:

thezciittin me,

m bul e, int c w s tries 8 en'- the' slow-speed s hafts 8, the utting headfis given a circularv motion having compo ,nent's -lengt hwi se and tran'sverse to Since the combs 'hold the skin stationarygj. the g p v v utting he's-q slides over the skin apf c} witl'i-the armsfuf theU fixed isjand theb'ase ofth'e U "provided the combs."

withJ-ascanv ning-actioniwhichpxposes-all of the skin sur-h ,r b w 1'e n v r ting 'head. "rile-"reput tinghead' is slightlygreate th .twe en" the islets. in the" j' where the. slots-'- between the slo vide a clearance for the longer hair."

-{Bprate with the inner surface of the cutting head the operator does not have to move the head repeatedly over the skin surface since the entire surface is covered in a single pass.

Inaddition to the shaving which takes place at the center of the cutting head, there is also a clipping action due to the movement of -.the cutting head relative to the combs 29. This clipping action clips the outer ends of the hair so the shorter lengths will be more readily shaved. As shown in Fig. l the slots 22 extend partway down the side walls of the cutting head to pro- What I claim as new and desire to secure by Letters Patent of the United States is:

1; In a shaver, spaced skin-gripping members, a cutting head between said members having an -outer skin-engaging surface and an inner shearing surface, hair-receiving openings in said head,

means for effecting a slow speed relative movement between the head and the gripping members whereby thhair-receiving 'openings'scan the skin surface between the gripping members, and a high speed'cutter cooperating with the inner surface of the head toshear hair project ing through said openings." e f 2. In a shaver, an elongated skin-gripping member, an adjacent cutting head having an outer skin-engaging surface and an inner shearj ing surface, hair-receivingopenings in said head,

means for effecting the slow speed relative movement between the head and the gripping member, both lengthwise and transverse to the gripping member whereby the hair-receiving openings scan the skin surface held by said gripping member, and a high speed cutter cooperating with the inner surface of the head to shear hair projecting through said openings.

3. In a shaver, an elongated skin-gripping member, an adjacent cutting head having an outer skin-engaging surface and an inner shearing surface, hair-receiving openings in said head, slow speed eccentricscooperating with the head to move it lengthwise and transverse to the gripping member whereby the head scans the skin surface held by said gripping member, and a high speed cutter cooperating with the inner surface of the head to shear hair projecting through said openings.

4'. In a shaver, an elongated cutting head having an outer skin engaging surface, an elongated skin gripping member having spaced teeth defining hair receivin openings,the outer surfaces of the teeth being arranged to grip the skinandthe inner surfaces of said teeth overlapping and bearing against part of the outer surface of the cutting head, means for effecting a slow speed movement of the cutting head relative to the gripping member whereby the part .of the outer surface of the cutting head engaging the teeth of the gripping member is effective to clip hair received in the openings between the teeth and the remaining part of the outer surface of the cutting head scans the skin surface held by said gripping member, and a high speed cutter cooperating with the inner surface of the cutting head to shear hair projecting through the openings in said remaining part of the head. J A

, ADALBERT ALEXAY.

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