US1676209A - Razor-blade sharpener - Google Patents

Description

July 3, 1928.

Filed A ril's, 192e- 0 7 2 6 z m J J J 7 x WV 9 k z 2 4 AT l l 2 y I \7 4 m 2 m 4 INVENTOR VVZILZEE W UPINGTON ATTORNEYS v r barbersr willibe had.

v V 45;;pi'ng "orjsharpening element.

i theline I .one ,endjof;the blade holder.

Pir t iui 19 23 g I a p 'if' yv'nn'rnn, vvQUPINGroiT; triac oiltiy vqlisniiae rpii,

. a MOB-BLADE I I pplication fi Allin 2;

"The present inventionlis concerned with the provision of a sharpening. device, and in ,its-lbroader aspects comprehendssupporting Jcam' plate 'whichwontrols therocking oi ithe ,and'ro'cking niechanism'for an. object .to be. sharpened, which may find a wide and varied rangeiof usefulness inthe arts; In apreferredhembodiment ofthe invention, the device isl utilized-ff0r1g$harpening -r'az0r, r bladesysuch for instance as bladesfofathe:

. ordinarylGillette or Durham duplex-type. ,I-w

' vAnobjectsof theinventi0nis1to provide ay 1 I blade carriage which may be associated, with a conventional type of strep, and reciprocatingnalongithexstrop toieffect sharpening of 55 the'blade. V x Tr a; i

A feature of the invention is the provision ofrayblade: sharpener in which "the blades are always-held at an angle, to the transverse planenof ."thestrop, ySOiFlJhiL-li; the-z desirable 20. "drawing off i anion commonlyemployed; by

r further featuretof :the invention the provisionwof 'a"blade holder. 'rfrom -Whichblad es may-bereadilyIemovedand replaced,

5 and which will facilitate the rapidturning over of theblades-jforrsharpen ing opposite side's-thereoil Q4 "Other objects of r the. invention a1-.e; :to. pro: videzia blade sharpening z llnitqof. simple;

3 practicalaconstructiony Which willbe, rugged;

durable; andi-ieflicient .in use, and which; inaym be manufacturedZWithicomparativeeconomy;

view, the invention consists in certain novel i i 7 3 5 jfeaturesjof construction Sand combinations 5 nflflly understood from the fOllOWlIlgdBCIiP-Z; "tion ,inconnection; with 2 the accompanying "drawings, whereino-' I a :Eignlgis a toppla-n view ofabladeisharp: i ener embodying the present .inveiitiomshowe l; ingth same inoperative relation to -a strop.;a

Fig '2lis anview in sidefelevat'o of Fig, 1;; Fig; 3. isa longitiidinal -sectional,view on f of: Fig] 1 with" the strop :re.' I moved. e Fig. A isa transversesectional-view "staggered lineHeofFigi'ls 2 1,, Fig.5"islan -enlargedsectional detail of:

Fig .6 1s a perspective new. 0

i 5 t'ype ofzsharpe'ning-nnit invvh-ichthe strap-5* plate 24 :is hinged as fat 251m SHARPE E 192's; s riai vo; 99,385. ping'jeleinentwis vin the nature of an endless belt contained'ivithinthe unity; v.

Fig. 7 is aiperspective' view of the sliding} lnktheu foi'm of the inventionshowii in- F ig's l, to5 :andl7, sharpener inclu'des 'a blade holding iunit adapted to 'be associated v With a-1conv'entional strop-10fa'nd manually reciprocated back 7 and forth along lthe strop- I t0 efiect sharpening of theb'l'a'de; illhe blade llOldlIlgllIliflIIliiYincludna casing 11open -at- 7 its topsq lheside plates 12' of the casing are? connected'nea-rtheir. uppeivzjco'rners by rollersil3 under which the stropj10 'is' passed. ,7!) Theastrop' i's, th-readednnder-one roller 13;? over the face. :of sliding i cam plate 14, and: under: the .faceofthe other relief, soithatthe camwplate is 'frictionally engaged b'y f thei;

Gam pla aimsar-iiaiaaai-da have;

ment-on suitableg'uideiways or..,platforms shown,"t hesei guiderWaysmay;be'conyenienti p 1y "formed 'as invv'ardly presented-flanges car-v r'led by knurled handle plates' IG riveted o I 1. otherwise 'securedlat.1.72.5136nttlie fouter fa c'es i v offtherz side*iwallsf :Th ese {plates iafford .v i V roughenedthumb?andfinger reheiving. por i; tions -vvhich inlay? bej grasped ats thejbljadef holdingiinitjis -manua-l'ly"jrecipi'ocated er 3 thez str0p.iwlntegrab'oririgiid with -thezica 5 ingwall's' are pa ifaof 'upwardly-z resent;.

ed 'apertured "fears" 18'; and 19*Which receive trunnions 2 0-iatthe' ends of 'a= b'lade s u'ppo1't i v ingvpIate "member 21 wvhereby the platemember: iis: i 'ockablyi'monntedf in the e arsxi i =Platemember :21 is forined =Wli3l1 lugs 22 adapted 0 6111161 the'iisual apertnresfiin' Gillette'blade-indicatedat;2 -Aolampi n'g f p p ion'eflend 1 oi the-plate '21vandAco-opei'fatesvvith theplate W 2lato hold athe blade '23 :inplaces iPrefer v 1 ablyafplate 24 1s formed "Withiiapertures 267? Y positerendoli the plate: 21 Asibest seen inf l 7 Figs. 4 eand v5,'this'l yo kemay be' svvungout V I V 'wa'rdly: to permit movementiof .the plat'e'24z1 L 7 toward or away from blade clamping posiaction or angular slidingaction which is considered the .IDOSlZ- efficient for: sharpening Purposes. I i

Operative connections are when the direction of relative movement of the casing ll-and strop 10 are reversed; As

best seen in Fig. 7, the plate 14 is provided on .each side with upstanding flanges 30.

These: flanges areeach'formed at one end blade holder mechanism, cam plate-etc., are

with a cam groove 31 adapted-toco-operate with a cam bar 32: carried by the blade hold- I ing plate' 21. Preferably the grooves 31 are 7 of arcuate shape :and'the under faces ofthe;

ends ofthe cam bars 32 are curved at 33 in lit accordance with the curvatures grooves 31. Since the bladeholder is angularly disposed relativeto the transverse plane of the cam plate 14, the cam grooves 31- are, not opposite. each other, but are'arranged near, opposite ends of their respective flanges 30.

The .operation of the device is substantial- '1) as follows. 1 Before the blade is placed in the holder, the casing llis mounted uponmesa-p lO-by threading the shop under the rollers 13, and. over .the cam plate 14; in the manner above described. The locking yoke 28 is then swung .t-o the'dotteduline position of Fig. 5. .Clamping-bar2 lis swung on its pivot to permit a blade to be laidupon the plate 21 with its apertures receivingzthe lugs'22. The clamping plate is. then swung down and locked by the yoke 28. r The handlepieces 16'of the casingare then grasped and manually reciprocated to -slide the easing back a-nd forthalong thest-roplO, one end; of which will be anchored .orhung on av suitable support in'the customary manners As the casing moves, in onedirection relas tiveto the strop, the frictional engagement between the strop and the cam plate 14 will tend to retardthe cam plate, and upon such :re-lative-movement of thecam plate :and cas 'ing the curved walls of; notches 31 .cam'

against the curvedends ofthetwocam bars 32 10. tilt them as shown in Fig. 3,. and con-Y sequentlyto rock the bladeholder, and swing the edge of the bladeagainst the strop. The

' i angrularity of the working faces of the cam grooves 31, 31 is such that a wedgingaction is provided between the face of the cam and the ends of the cam bars 32 to oscillate the blade holderv .It will be noted that. as the provided between the cam plate ll and the blade holder '21, 2iytoneil'ect' reversal of the blade holder of the 7 blade holder is oscillated, one edge of the blade is moved against the strop, the wedging action between the cam groove and cam bars serving to force the blade to be sharp- .ene d against the strop with suficient friction to limit the sliding movement of the thecasing 42s, and one of the rollers carrying. an operat-ing. crank handle '43. The

the samev as described above, and by reversing the direction of rotation of the crank handle, the blade holder will be reversed asfwill' be readily understood.

Various changesand alterations might be'inade in the general form and arrange ment of parts described without departing from the invention. Hence I dov not wish to limit myself to the details set fortln but' shall '7 consider myself at liberty to make such changes and alterations as fairly fall within the spiritand-scope ofthe appended claims.

I-claim:

- I. In a sharpener of the class described,

stropping means and blade holder'support ing means movable relative to each other, a

tilting blade holder on-the supporting means disposed at an angle to the transverse axis of the stropping means, means operable upon relative movement of :the stropping means and bladeholder supporting means, to swing oneedge of a blade in the holder against the stropping means,.whereby the desired draw-.7

ingofi' sharpening action is'had,and= means 7 compelling reverse 'tilting'of the blade'hold'er when the direction of relative movement of the blade holder supportingmeans and stropping means is reversed, the reverse tilting means including a cam plate slidablymounted'in the blade holdersupporting means and shiftable 'byits frictional engagement with the stropping means; 2. I n a sharpeneriof the class described, stropping means and blade holder supporting means movable relative to each other, a

- tilting blade holderon the supporting meansf disposed at an angle to transverse axis of the stropping mean-s, means operable upon relative movement of thestro'pping means and blade holder supporting means, to swing one edge of a blade in-the hol d eragainstthe stropping means, whereby the desired-drawing'ofi sharpening action'is had, meansfcoinpelling reverse tilting of the blade holder when the direction of relative movement of the blade holder supporting means'and 'stropping means is reversed, the reverse tilting means including a cam plate slidably mounted in the blade holder supporting means I and shiftable byits frictional engagement with the stropping means, andcam fingers rigid with the blade holder rocked by cams on the plate. t

3.7A razor, blade sharpenerincluding a strop, a blade holder, support-connected to the 'strop for sliding movement relative thereto,'a blade holder rockably mounted in the support, a cam plate slidable inthe, support andshifted by its frictional engage ment with the strop, operative connections between the cam plate and blade holder .for

" ;rocking the blade holder to reverse the blade with the strop, operative connections between the cam plate and blade holder for rocking the: blade holder to reverse the blade as the cam plate slidesrelative to the support, said connections including grooved flanges onthe'cam plate and cams on the holder working in the grooves. V

5; A razor blade sharpener including a strop, a blade holder support connected to. the :strop for sliding movement relative thereto, a blade holder rockably mounted in I the support, a cam plate slidable in the sup port andshifted byits frictionalengage? between the cam plate-and blade holder for rocking theblade holder to reverse the blade as the cam plate slides relative to the support, 'said connections including grooved holder working m-the grooves, the engagement of thejbladeand strop limiting the sliding movement of the cam plate. p

6. 'I'hec'ombmzition with an open topped;

casing, of a cam plate 'sliding in guideways ably mountedin bearings at the top of the 'casing'and including a pair of blade clamping elements, rollers at the end of the casing under which, and over the" canrplate, a shop is adapted'to'be threaded, and opera- 401 ment with the strop," operative connections] 4a .fianges on the cam plate and cams on the below. the top thereof, a blade holder rock? I tive connections between the cam plate and the blade holder, whereby when the cam plate is slid by its frictional engagement with the strop, the blade holder will be tilted. 7 Thecombination with an open topped] casing,'of a cam plate sliding in guideways below the to thereof, a bladeholder rock- '7 Vably'mountec in bearings at'thetop of the casing and including a pair'of blade clamping elements, roll'ersat the end of the Casing under which, and over the cam plate, a strop is adapted to be threaded, and operative connections between the cam plate and the blade holder, .whereby when the cam plate the holder Workingin the grooves.

.WALTER UHNGTON, 1

is slid by its frictional engagement with the r strep, the blade holder will be tilted, said 5 means including flanges on the'cam plate having recesses therein and cams rigid with

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