US1522716A

US1522716A - Safety razor and sharpener

Info

Publication number: US1522716A
Application number: US672369A
Authority: US
Inventors: Paul A Frank
Original assignee: Individual
Current assignee: Individual
Priority date: 1923-11-02
Filing date: 1923-11-02
Publication date: 1925-01-13
Anticipated expiration: 1942-01-13

Description

, P. A. FRANK SAFETY RAZOR AND SIHARYPENER Filed Nov. 2, 1923 Patented Jan. 13, 925.

UNITED STATES,

PAUL A. FRANK,

1,522,716 PATENT OFFICE...

or AKRON, 'o' Io.

SAFETY RAZOR AND SHARPENER.

Application filed November 2, 1923. Serial No. 672,369.

My chief objects areto provide an im-' proved safety razor and an improved sharpener therefor wherein the blade may be quickly, easily, and evenly sharpened without removing it from its holder and without requiring so high a degree of skill as is. required in the case of razors and strops such as heretofore have been known.

More specifioobjects are to provide animproved razor sharpener of the rotatingcylinder type adapted to be used upon a blade while the latter remains pivotedm 1ts holder, to be quickly and easily apphedto and removed from the razor, and to be easily and accurately held in operative relation to.

the latter. A further object is simple and inexpensive construction. I

Of the accompanying drawings: Fig. 1 is an end elevation of my sharpening device in its preferred form, 1n open position to receive the razor, the supporting ring shown in Fig. 2 being omitted.

Fig. 2 is a side elevation, as viewed from the left of Fig. 1, of the sharpener, a; part being broken away and shown in section.

Fig. 3 is an end elevation of the sharpener and my improved razor therein, In operative relation.

Fig. 4 is an end elevation of the sharpener as viewed from the leftof Fig. 2, parts be ng broken away to show the blade-osclllatmg mechanism.

Fig. 5 is an elevation of the razor with 1ts blade secured in position for use.

Fig. 6 is an end view of the razor.

Fig. 7 is a plan view of the blade.

Fig. 8 is a perspective view of a blade oscillating member.

Referring to the drawings, 10 is a razor.

handle screwed into. a blade-hold1ng head 11, the latter preferably comprising a stamped piece of sheet metal having parallel, journal-

ear portions

12, 12 bent away from the handle 10 and a blade-suporting, bracket portion 13 projecting laterally of the handle 10, said bracket portion being formed with the

usual guard teeth

14, 14 adapted to underlie the cutting edge of the blade, and with end-

guard teeth

15, 15 between which the cutting margin of the blade may seat. 16 is the blade, which is pivoted between the ears 12 of the head 11, being preferably formed, ashere shown, with a clamping portion 17 at its back, of less length than the full length of the blade, and with perforations 18, 18 (Fig. 7 adjacent said clamping por-- tion, the blade thus being adapted to be held by a broad spring clamp 19 pivoted on a shaft 20 mounted in the cars 12, said clampbeing dimpled, as shown at 21, 21 (Fig. 6) to provide detents adapted to enter the perforations 18 of the blade to'hold the latter in the spring clamp. 22 are spacing collars rotatably mounted on "he shaft 20 between the spring clamp 19 and the respective ears 12, said collars being adapted to be clamped between parts of the sharpening device hereinafter described, to hold the razor in operative relation to the' latter while permitting the-blade to be oscillated. 23 are blade clamping slides mounted in suitably aperture'd

lears

24, 24 and 25, 25 stamped andbent upfrom the bracket portion 13 of the head' g-ll, saidslidesbeing formed with .respectivef hooked outer end portions 23*, 23 adaptedito engage the end margins of the bladeto hold the latter in operative-relation to the guard teeth 14:, 15, and withbent inner end portions 23", 23 projecting through the opening in the head 11 formed by the stamping and bending up of the ears 24, the said inner end portions, 23, being adapted to be engaged by the fingers to draw the slides together into blade-holding position or to move them apart to release the blade. The slides 23 may be formed with dimple detents, as indicated at 26,. 26, coacting. under spring action of said slides, with complemental dimples (now shown) stamped in the face, of the bracket member 13, to secure the slides in blade-holding position.

The sharpening device com rises a pair of journal-frame members 2 28, which may be formed of stamped and bent sheet metal, said frame members being formed with parallel, curved, hinge

arms

27, 27 28, 28" at their ends, said arms being hinged together in pairs at their outer ends by a pin or shaft 29 common to the four arms and provided with a spacing sleeve 30 between the two pairs of arms, as shown supporting the device, either when in'use or not, while permitting the frame members to be swung toward oraWay from each "other to clamp the device upon or remove it from the razor, said frame members befing formed with notched clamping jaws 27 I 27", 28", 28 ?-ac lapted to be closed upon theaccurately in the sharpening device, as

' f shown in Fig, 3, while 'permitting its blade toibe oscillated; Y Abra'ding cylinder :33, adapted toi re;

ceivepu ie blade-.16.,

ber 28, with, a han the cylinders. v FF r' oscillatingythe .lade so as y eldingly .to holdfjit'for a timeiagainst one and then I against"the other ofthe rotating abradi-ng itsc'utting edge,jaflcam-actuated lever 39,

I I do not w olly limit my invention theret 42, so that thebladeaniits successivelating movements towardeach cylinder will contact the cylinder at. a slightlyj difl'erent position, so as to avoidexcessivelocalized V.

' to vhold it against oneand then-the other of ".said 0 linders,

sharpener comprising a frame adaptcylinders, to abrade the respective faces of formed atone end with a'cipair of laterally projecting spring fingers 39 3 i adapted to embrace the blade,- i spi Oted fnear its middle, at 39 (Fig; ,4)','upo anjelar 28 formed upon the rear'arrnofthe rame member 28, and is formed at its other end with a pair of cam-follower fingers 39, 'f39 straddling a reciprocator cam-4O secured to a large spur gear 451 journaled uponthe shaft" 29 at. the rear end of the spacingii-i sleeve ,130'j; and meshed with 'a small spurj g ear upon the shaft'34."

The number of teeth on the. preferably almost-but not exactl tiple of thenumber-ofteeth on, eg

wear of the v cylinder at any part, f cumference. t l v as other types or abrading cy'linders job viously may be'used r In the operation of sharpening ith the blade 1s released byfo'rcingif 23 apart and is turned about its stantially into alignment-with handle 10. 'J-The frame members of jthesharpening device being opened ZOutas' shown in Fig.

' e ibm'; Jaref'seciiredfii respectiv sh ft 34 p.

journal frame embers

27, 28 at.-

simply ypension. t

red

for d to straddle the frame members are then "tlosed toward each other and by the-hand. are held clamped upon the sleeves 22 of the razor, and the hand crank 38 is turned clock-wise as viewed in Fig. 3, driving thei abrading cylinders and, through the train of gearing abovelde- I I :scribed, driving the cam40, which, through" collars 22 015 the razor, .to hold the latter."

the le-ve1'f39 and the latters spring fingers ..-39'**, yi-eldingl-yfholdsg-th'eblade for anap' f :preciable timef against one of i the rotating ,cylinders' and'ft-hen-the other, in successionlj v The-blade is thus sharpened without such unevenness of effect as frequently occurs in 30 self-sharpening razors of the reciprocating 'strop type; without requiring much skill or care on the part10f"theiop erator, theelement of skill being almost completely eliminated; aIKlZIWlthOut vremoving the blade [35 y from its holder. I v a Tov facilitate the holding and steadying of the device in use itmaybe pulled byf the hand grippin-g'the frame, the latte-rbeheld in one hand without sufchsus- "Th e ears"12 of the bladesholdinglhead,

abutting the respectivespacing collars 22,

provide means permanently mounted and 9 consequently alway'slpresent upon the shaft 20, for positioning the latter longitudinally with relation to the frame, members as the latter are closed about the end portions-of the shaft, so that the mount-i sharpener requires simply the "=closi gio'f the; frame members uponthe razorgavoiding;

blade and at the same time provi 'ng the necessary accuracy of position q -Modific'ations may beresorted tofwithin J the scope ofmy invention, andf 'Iidonot limit my claims toitheflspecific com wholly ies S wn-Y ener comprising-a frame stru' them, means for drivin said'.fcylindei's, and means for so oscillating said'blade as clamped upon a safety razor, a pair c linders in said frame, means ri I t 'e cylinders, a blade oscillatavingla pair of fingers adapted said i cylinder-driving means for actuating lever.

- 3. A sharpener comprising a frame adapt- .ed to be-clamped upon a safety razor, ap'air "of the 1 ade, and a cam' driven by 1 ving suspended by the ring 31, or it maybe dangerous handling or manipulatin fflthe to be clamped on a safety raz or, pair-of spaced apar abradin'g c linde'iis ed freely. to receive therazor blade between i I of abradingeylinders in said frame, means u.

for driving said cylinders, and blade oscillating means actuated by said driving means and including a pair of spring fingers adapted to straddle the blade to hold it yielding ly against one and then the other of said cylinders.

4. A sharpener comprising two frame members adapted to be clamped upon a safety razor, a pair of abrading cylinders mounted in said frame members respectively, means for driving said cylinders, means actuated by said driving means for holding the razor blade against one and then the other of said cylinders, and means by which the sharpener may be suspended from a support to facilitate holding it against the force of the cylinder driving means.

5. The combination of a clamp adapted to grip the base of a safety razor blade, a shaft constituting a mounting for said clamp and having end portions projecting therefrom, a pair of frame members adapted to be closed together about the projecting end portions of the shaft While accommodating the blade between them, means permanently mounted upon the end portions of the shaft for positioning said shaft with relation to said frame members as the latter are so closed together, said means and said frame members being adapted to be associated by a simple closing movement of the latter, vabrading cylinders journaled in said frame members respectively and adapted to abrade the opposite sides of said blade, and means for driving said cylinders.

6. A blade sharpener comprising a pair of relatively movable frame members having respective clamping portions adapted to embrace a part of the mounting of a pivoted blade, a pair of abrading cylinders mounted respectively on said frame members, in position to straddle said blade, driving means for said cylinders, a blade oscillating lever pivoted on one of said frame members and formed with a pair of fingers adapted freely to receive said blade between them, and a cam, driven by said cylinderdriving means, for actuating said blade-oscillating lever.

7 A blade sharpener comprising a hinged pair of frame members having clamping portions adapted to be closed together upon a part of the mounting of a pivoted blade, a pair of abrading cylinders mounted respectively upon said frame members, a pair of gears concentric with and compelled to rotate wit-l1 said cylinders, said gears being adapted to mesh and unmesh as said frame members are swung toward and from each other, a reciprocator cam journaled concentrically with relation to the hinge of said frame members, a two-armed, blade-oscillating lever pivoted on one of said frame members and formed on one arm with a pair of fingers adapted freely to receive said blade between them, the other arm of said lever being formed with a cam-follower portion associated with said cam, driving means operatively connecting one of said gears with said cam, and means by which one of said cylinders may be rotated.

In witness whereof I have hereunto set my hand this 30th day of October 1923.

PAUL A, FRANK.