US1924676A - Hair clippers - Google Patents

Description

Aug. 29, 1933. B, BRQWN 1,924,676

HAIR CLIPPERS Filed'llay 16. 1930 a we 21 /52/20 5 f It isthe prin ipalflu f lVIy invention relates to hair, clippers of thjltiernating "current 'electro-magnetic type, but not ,limited iespecially thereto.

rpose of this in I provide n ere; this t peje novel means for controllinggthe {position of the stationary theoperato'r U I @.Iurther and more'specific purposeof thisl-inlvention is to provide, in connection with the novel 'lneans abovereferredf to, [means to prevent, any

rattling of the stationaryblade duetol the rapid rate of vibrationl'ito whichthe machine is lsubf J'ected. 3

A- further object-of the invention is to provideflalso a device ofthi's, characterin which the 1 adjustment'ot thelstationary blade is plished through the medium'oii aisimple actionv .20

tha er its a; re ative l n m n 'd t .operators finger-piece in adjusting the bladefor a short movement of the blade.itselithusmakingit possibletmobtainivery fine orlmicrometer adgjustments without: any particularly eration'o'i the finger-piecej I will describe Zone form which'the invention *will take-by reference to the accompanying drawin'g wherein thepreferred fojrm of theinvenjtion is shown. lt i s obviousfof 'coursejthat the'ldls closure is illustrative only and is-not to be taken as limiting the invention except in'so faras' it. V

' serving as theoper'atin'g, 'action from the lever v to the stationary blade 0 performs avery' im- 1 at 10 a clipper provided with a so-calledstation-l able blade is connected by theelements 13 and 14 to a vibratoryarmature 15 in a well known" manner. Means for vibrating the armature 15 forms no part ofthe present invention and may be of 'any well known type such as that shown;

for instance in'the patent to Leo J. Wahl, Patent No. 1,558,729, issued October 27 1925. Themovable blade is yieldingly pressed toward the" 'stationary bladeby the connecting members 13 and 14. The'stationary blade is'mounted by means of the screws lfiandl'l' upon a member 18 which;

30. serial; N

ventiorito statio b slidi 'ffalon 'th rew-e pr v ded inl h ca blade: so that. it canibe advanced or. retracted by sp ing which is" securedij as' by means of the iwmiith es a dt laid m ain a in e stationarymlade in 1 ny; adjusted "pc sition withff with thisblade. This function lies in holding the bevelled edges of the member .18 downwardly 1 against the corresponding bearing surfaces in fthecasing; The spring 22 is so formed. that re-" gardless of the position or the stationary blade it force the 'stationaryblade too far in either, direee HMRQ I WM v David B; Brown, Bellingham;..-Wash;. 'iassignor Wahl Clipper Corporation, Sterling, ;Il l., a cor nary .blad'e'may bef advanced and retracted m an R a isin .thi lgl di w ich ide "connecting means consisting "of; the

. th imember 318 andiwhien has its 'otlierfen'd lured byjmeans offthe' i ivet zki to' an operating leverfl25'fpivotedj on -the casing by means eruie tue 26'andhaving theQfinger-piece i 2 7turn e'd up along s'idethbtmsinglat the end oplicsitejthefpivotf 26f; 'I he me "bergf25 may b'e" I trustees s g9 witlijthe ot+ funtionor.

portant function'in the operation of the clipper 0 is always under tension due to its curvature so that. it ,is. tending to press 1 outwardly toward the stationarybIade and thus'wedg'e the bevelled edg'es;l9 and ZO tightIy into their'bearings and .ary l d 11 and a movable blade 12 whi h moveprevent' any rattling due to the vibration, At

the'other endthe stationary blade is, of course,

"subjected to a similar pressure bythe movable blade, andthe cooperation of these two pressures :in forcing the'member' l8 tightly into its bearbe'caused dueto vibration. Y

Another novel feature lies in the provision or means whereby the, lengths of stroke of the lever 25 maybe limited so'that itcannot exert. too great a strain on the connecting member22 or r'respondinggroovefat of tion. This means consists of the inturned projection 30 provided'at the upper end of V the finger-piece 27 which projection is bevelled as shown in dotted lines in Fig. 2 and is so situated I that at one limit of its movement one corner will engage with the side wall of the casing while at fthe other limit of its movement the "opposite corner will engagein thesame fashion thus'making it impossible to 'move the stationary blade beyond a certain. well defined limit and thereby causing damage to the operating mechanism orthe bearing'surface between the stationary and:

movable blades.

From the above description, it is thought that the construction and operation of. this device will be clear; to those skilled in this artand the advantages thereof readily apparent.

Having'thus described myinvention, what I claim as new and desire to secureby Letters Patent is:

1. In a clipper having a casing, a movable blade,

a stationary blade, mounting" means" on which said stationary blade 'is' adjustable tojvary its projection, beyond the front edge oi themovable blade, an operating lever mounted on the casing in spacedrelation to the stationary gbladegiand a curved spring member directly connecting said 'leverand blade for adjusting theblade and press ing it against its mounting means. i v

-, 2, In aclipperhaving acasing', a movable blade a stationary blade, mounting means on which said stationary blade is adjustable to vary its projectionubeyond the front'edgeiof the movable blade, an operating .lever mounted on the-"casing in spaced relation to the stationary blade, and .means directly connecting said' lever. and blade for adjusting the blade, said means. pressing said blade intoits bearing :on said mounting means in all positions of adjustment of said stationary blade, said mounting means and'blade' having cooperating inclined bearing surfaces.

3. In a clipper havingja casing, amovable blade a stationary blade,"mou'nting' means on which said stationary blade is adjustable to'vary its pro-- jection beyond the' frontfedge of. the movable blade, an operating leverv mounted ,on the casing in spaced relation to, thestationary blade,and a a curved spring member directly connecting said leverand blade for adjusting the blade, said mounting means andstationaryblade having'in clined bearingsurfaces, and said-spring member T v pressing outwardly against said blade tov aid in in spaced relation 'to thestationary blade, and

.means directly connecting said lever and bladefor adjusting 'the blade, 'said lever having a finger piece remote from its connection with the casing. and said means for adjusting said blade, and means. on said finger piece cooperating with the ;casing Ito limit therange of movement of said lever. a s

5.' In-a clipperhavingacasing and a movable cutting blade and means 'forvarying the closeness of cut of I the clipper comprising 'an adjustable plate movably carried by the casing whereby to vary its position relative to the front edge of the -movable blade, an operating lever mounted on the casing inspaced relation'to the adjustable plate,

and a curvedzspring member' 'directly connecting saidlever and plateformoving said plateforward and back in response to corresponding movements of said lever, said spring member being underjaf bending stress inall positions thereof whereby to prevent vibration of said plate. j p 6. In -a, clipper having a casing, et/movable blade, s a stationary: blade, mounting means i on which said stationary blade is adj ustable to vary its projection beyond the front, edge "of; the movable blade, an operating lever mountedon the casing in spaced relation to the stationary blade, .and means connecting said lever and blade for f adjusting the blade, andfmeans' on said lever cooperating with the casing to limit the range of movement of said lever.

, 7; in a cnpper ,'having :a casing, s movable blade, a stationary blade, mounting means-on which said stationaryblade is adjustable to vary I its'projection'beyond the front edge of 1 the mov able blade, an operating 6 levermounted on 2 the casing'in spaced relation tothe stationary blade, and vmeansqdireetly connecting said-lever and range ofmovementof said'lever. g

s Davina BROWNQ blade for adjusting the blade, and means on said lever .co-operating with the casing tolirnit the

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