US2102509A

US2102509A - Razor blade sharpener

Info

Publication number: US2102509A
Application number: US89439A
Authority: US
Inventors: William A Campbell
Original assignee: Individual
Current assignee: Individual
Priority date: 1936-07-07
Filing date: 1936-07-07
Publication date: 1937-12-14
Anticipated expiration: 1954-12-14

Description

Dec. 14, 1937.. W Al CAMPBELL 2,102,509

RAZOR BLADE SHARPENER Filed July 7, 1936 2 Sheets-Sheet l ,T BY mv.

l//S Av1-onlus Dec; 14, 1937. w. A. CAMPBELL 2,102,509

RAZOR BLADE SHARPENER l Filed'Juiy '7; 1956 2 sheets-sheetz l5 ATTORNEYS Patented Dec. 14, 1937- "UNITI-:D1sTATEs PATENT OFFICE Razon BLADE 4SHARPENER Y William A. Campbell, Youngstown, Ohio: y Application July 7, 1936, serial No. 89,439

I f Claims.

This invention relates to razor sharpeners and holders and has for the primary object the provision of av simple and inexpensive device of this character'whereby a razor umay be. rapidly and efficiently sharpened and employs a reciprocating sharpening element and holder for the razor to maintain the blade thereof in proper relationA and With desired pressure on the sharpening element and which will automatically change the position of the blade or presenty they opposite side of the blade on the sharpeningelement as the latter completes its movement` in` one direction an starts ina reverse` or opposite direction.

With these and other objects in view, this invention consists'fincertain' novel features of construction, ycombination and arrangement 'of parts to be hereinafterj'fmore fully described and czlairned...` y d For a complete understanding of my invention, `reference 'is to be hadA4 to the following description and accompanyingdrawings, in Which- Figure4 1 is atop plan View illustrating a razor Sharpener constructedfin accordance with my invention. `j Figure l2 is same. v

Figure 3 is a longitudinal sectional View illustratingv the means for reciprocating the sharpening element andthe means of shifting the positionofthe'blade ofI the `razor relative to the sharpening element after the latter completes its movement in either direction.

Figure 4 is a transverse sectional View illustrating the device.

35 u Figure 5 is a fragmentary sectional view taken onthe line 5-5 of Figure 1.v j

Figure 6 is an end elevation, partly in section,

illustrating the shifting element.

Figure 7 is a fragmentary side elevation illustrating thevshifting element.

Vl'ligure Sis a fragmentary sectional view illustrating a journal for one end of therazor holder and cooperates with stops in preventing the blade after each shifting operation' thereof fromcontacting the sharpening element until such time as .the sharpening element ,reverses its direction of travel.

Referring in detail to the drawings, the numeral I indicates a casing which may be equipped with a removable cover (not shown). The end Walls of the casing, indicated by the character 2, have mounted thereon bearings 3 rotatably supporting a feed shaft 4. The feed shaft has oppositely extending feed threads 5, also has secured to one end a gear 6 meshing with a gear 'I 275 I 'a -sidevelevation illustrating the secured to a crank handle B. The crank handle is arranged exteriorly of the casing and is journaled to one of the end Walls thereof for the purpose of rotating the feed shaft in arclockwise direction. I'

' A carriage 8 is slidable mounted on the feed shaft'by bearings I and is provided with legs I I which slide l,against the' bottom of the casing for maintaining the carriage horizontally. A spring pressed feedr nut 'I2 is slidablyfsecured to the carriageby a bracket I3 and meshes With the feed threads 5 o f rthe feed shaft 4. Therotation of the feed shaft'withthe feed nut I2 in engagement Withthe threads thereof brings about a reciprocation of the carriage. A 'sharpening element I 4 is suitably secured to the carriage and is of plate-like formation.

Arranged transversely of the-casing and rotat- V ably supported by the side Walls of-said casing is a chuck or razor holder I5, a portion of which is in the form of a shaft I6 having a groove Il therein to receive the non-cutting edge of a razor. A bearing-likeportion I8 is secured to the shaft I6 adjacent one end and -is journaled in one of lthe side Walls of the casing and has formed thereon a disc I9. `The disc is 'equipped with a notch 20 aligning With thegroove II. The notch 20 also extends into thebearing-like portion I8 and the'purpose of which is to receive the shank of the razor blade so that the handle, indicated by the character 2 I,`may be positioned exteriorly of the casing with the blade positioned inside of the casing and transversely of the Sharpener I4.

A bearing`22 is formed on the other end of the shaft and'is rotatably supported by the other side Wall of the casing and has formed therein oppositely extending arms 23 to Which are `pivoted hook-shaped elements 24.- The hook-shaped elements 24 extend in opposite directions relative to 'the shaft I6 and have connected thereto coil 4 springs 25. The springs 25 are secured to the end Walls of the casing. The springs due to their connection with the holder I 5 alternatingly act to VAexert ay turning action to the holder for the purpose of vbringing the blade in contact with the sharpening element with desired pressure. A segmental shaped plate 2l is secured to the bearing 22 and has secured thereon pins 28, which pins extend in opposite directions to each other. Hookshaped members 29 are secured to opposite ends o-f the carriage 9 and each has a cam-shaped end 30, the purpose of Which is to engage the pins 28 for the purpose of rotating the holder I5 in either direction to present first one side of the blade of the razor against the sharpening element and then the other side of the blade after the holder completes its movement in either direction.

Set bolts 3l are threaded to the disc I9 and enter the notch 20 thereof to engage the shank of the razor blade and thereby secure the bladeV the end of its .movement in one direction one of Y Y the hook-:shaped members 29 fen'gages" one ,o' theV pins and imparts rotation to the holder I5 to present theother side of the blade against the sharpening element. Y

the limit of itsmovement in an opposite direction the other hook-shaped member .29 engages the other pin 28 and rotates theiholderIEin-'an opposite direction to present xthe other :side of n' the blade against the sharpening element.

PinsA 32 are secured to the disc I9-and ithey coact withrstops .33 arranged at, opposite ends'of the carriage, the lpurpose of .which .isxto ,prevent the blade or `the cutting :edge trom'lbeing Kpresented win `engagement withV vthe VsharpeningY Lelement after the shifting of the position of; vthe blade and prior to Jthe carriage ,reaching ,the limit of vits moyementineither direction. However, las soon f.as Ythe carriage .startsin la rreverse direction Athe stop ,is contacted by .one ,of` :the pins -becomes disengaged .therefrom allowingY the cutting .edgefof-the blade to contact the sharpening elementatfa:properangle i I Having Vdescribed theinyentionfl claim:

1. ,A rrazor :Sharpener comprising@ casing, a carriage slidably Amounted in said ,.casing, -Aa continuously rotatable eedrshait 4:joui'naled in said casing and having double -threadsareversely .arranged to each other 'thereonfaffeed :nutcarried by the carriage for reciprocating the same, Ya sharpening element carried by the carriage, `a Vholder journaled .to the casing for ,supporting `a blade .at kla .proper -angle `to the sharpening-.ele- Ament, automatic imeans Afor Y.rebatir-ig the ,holder in-either direction for `the purpose of lchanging the gposition `of .the blade :to present `first one side thereof tothe. sharpening .element and then the Iother side, fsaid :lastnamed .means acting 'when the carriage reaches :substantially ,the-limit of rits :mo-vementin either direction :tobring .about :a reversing of 4,the -blade -on :the sharpening ele- Y :ment when the-carriage .reaches fthe limit of its movement in one direction and starts tomove' in anloppositedirection, andstop means Carried `by the holder-and carriage `.enacting .adjacent to the ends ofthe reciproc-atory .movements ofthe carriage for'maintaining :the blade elevated..above Vthe `sharpening velement during reversing movements-of'the-carriage. Y

2. `A 'razor Sharpener `comprising .a casing, a carriageslidablein said casing, afeed shaftjournnaled in .the casing and having doubleV Yfeed ,threads reversely-arranged ,toreach other, .a feed nut `carried vby vthe v.carriage @and 4engaging the feed `threads whereby said carriage will be reciprocatedby the rotation o'f vthe shaft in one direction, meanssfor rotating Ethejsha'rt, a sharinener carried by the carriage,aholdergjournaled in the casing for supporting a razor blade, and means in the casing coacting with the carriage for positioning the blade in proper relation to the sharpening element. Y

Y 3. AV razor sharpener comprising a casing, a Sharpener mounted for reciprocation in the casing, Vcontinuously rotating means for eiecting the reciprocating movements of said Sharpener, a holder mounted in the casing and arranged transversely .of the YSharpener for supportingia blade in contact wvithffthe ISharpener, oppositely ex-l tending arms secured to theholder, hook-shaped f elements pvoted to said arms and extending in When .the carriage nears opposite directions, coil springs connectedrto Said 'hook-shaped :elements and tothe endsV of the casing, and means operated by the movement of "thesharpener to rotate the holder inV opposite directions :to alternatingly present opposite sides of the blade against the sharpening element when thesharpening element nears the'end of its movement in ,eitherdirection.l v Vf A, A razor -fsharpener .comprisin Sharpener .mounted for reciprocation in fthe tcasing, continuously rotating .means ,foreiecting Athe reciprocating Amovements .of,said .sharpenen --a holder mounted' in the 4casing .and arranged Y transversely yof .thesharpener for supporting ra Vblade zin-.contact Withkthe Sharpener, Oplbositely extending .arms secured to Ethe holder, `hookshaped ,elements ,pivotedjto said arms [and .extending in .opposite directions,` Y.coil springsfcon- Vnectedto said hook-.shapedjelements and to .the

ends of the casing, spaced .pins .secured `to ,the Y `holder .and extending .in Aopposite directions, ,fand

hook-.shaped members .secured :Ato-,opposite lends l ,ofA .the .Sharpener to engage -said :pins for rotating the .holder in an: opposite .direction by movement of the s'harpener for alternatingly present;V

Y ing oppositesides of the ,bladeagainst .thesharping element carried bythe carriage, a vholder` arranged Ytransversely to .thesharpening element and `journaled in V.the ,casing for .supporting `aV razor. blade .1in proper .relation to ,the sharpening ,elemennrspringmeans connected-to fth'eholder, Y

pins .secured to the holder, .means .carried by the carriage for Valternatingly:engagingisaid :pinsto alternatinglypresent .opposite sides-.of thellrlade to the' sharpening element during each-,comple- ,tion Lof .movement of .the Acarriage `ineach ,direction, means 'for Securing ,the :razor to thefhdlder, pins carried kbysaid rholder, andstops Ilocated at the ends of the Lcarriage to be engaged lby vthe last-,named v,pins to prevent `the yholder Efrom contacting the cutting edgelof the ,blade with the AYsharpening 4element .after each operation of -the .holder for Lpresentingopposite sides .of theb1ade to the-sharpening element `untilfsuch time `as the carriage completes Yitsmovvement ,in one direction .and .starts to .movein .azreversedirection WILLIAM A. CAMPBEIJJ'.