US950830A

US950830A - Razor-stropping machine.

Info

Publication number: US950830A
Application number: US48562009A
Authority: US
Inventors: Mois H Avram
Original assignee: WONDER SALES Co
Current assignee: WONDER SALES Co
Priority date: 1909-03-25
Filing date: 1909-03-25
Publication date: 1910-03-01
Anticipated expiration: 1927-03-01

Description

M. H. AVRAM. RAZOR STROPPING MACHINE.

APPLICATION FILED MAR` 25, 1909.

Patented Mar. 1, 1910.

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eitizeu or" the United with handle l2.

Umain M os H AVRAM, or NEW YORK. N.

.ASSIGNOR- TO `WONDER SALES COMPANY, OF

NEW .iOlbK7 N. Y., .A CORPDRA'IIOINF OF NEW YORK.

RAZOR-STROPPING MACHINE.

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Specification of Letters Patent.

Patented Maga'. l., i910.

' Application tiled March 25, 1909. Serial No. 485,620.

B'eit known that l. vMots Il. Aman. a States. residing' at NeivYoi-k eity` Manhattan. eount'y of New York; State ot' New York. have 'invented newand uset'ul lmprovements in Razon td lapping-Machlues, ot' whieh the following` isa"speeitieatimi. i

;'l`h.is invention relates4 to an improved maeh'ine` t'or slropping' razor blades.`more partlieula'rly:adapted tor sharpening the blades ot' safety razors.

lThe niaehine consistsessentially of a pair otfi'i tnge'ared rollers which may be simultan'e'( .ly rotated vin opposite directions. ln proximity :to lthese rollers Vthere is arranged an,automatieally oscillating and longitudinally reeiproeating blade holder which brn the blade. carried by said holder into alternate engagement with onev or the other roller'. 's that the blade will be at'taeked at lilith sie to unitormly sharpen its cutting eqrlle.'K

lu theaeeompanying` drawing: Figure l .infront View ot my improved razor stropfpiugan'aehnw; Fie'. 2 a plan thereof: Fig. 3 :i rear vview partly broken away; Fig. 4 a aeetipn on line t -l. Fig'. Q. with the blade lder emitted: Fig'. 5 a .section ou line 3, with some ot" the parts omitted; the. roller earryingj the handle: Fig'. T a cross section through a roller; Fig. S a` ia'ee View ot the blade holder-, and ltie. E) an enlarged eross section on' l i 1ie tlv-tlltigz iQ.

li-e: uiuneral l iudieates a rear plate or une: the bent end l1 ot whieh is provided 'l`o plate l0 are secured a pair ot' relatively lixed yshafts or pins l. lllpassing through eorresponding' pertorations pif the iram and lirmly held thereto by unts .1-5. i

Upon eaeh ote the pins lil. 14, there Vis a .stropping roller Comprisailang'ed rear disk itt. a tlanged :iront T and a shell or barrel ltl ot" substair flatly eylindrieal shape. said barrel engaging'the disk flangesv to whit-h it is secured. 'l` h ..:sleeve or hub lt) ot eaeh trout disk li' reeeiied within a rorrespoiuling bore ot a epnnxeeliug t'rout piece or plate 20. 'llhe hub ot lhatdisk lT which is mounted on piu ll pr-ojeets slightly beyond plate Q0 tor the engagement with a handle 21. l Pin lilas well as pin'tl is provided at its front end with a head 2Q wlueh prevents a disengagement ot' Ireadily understood from Fig'. i'.

razors now-in the marl-:et

' springthe stropping .roller and plate 2O from. said pin. Each shell 18- is covered with a layer 2? of leather or other suitable stropping ma terial, a layer 2l et telt being interposed between shell 18 and layer 23, layer Q4.- torming curely wedge the ends of layers Q3, Q4 into the formed between jaws E25. as will be To lthe hub 27 of eaeh rear disk 1o is secured a ltoothed wheel Q8 meshing' into one another so that by turning handle 21, the stropping rollers will be rotated in opposite directions.

The distance between vins lll. l-'t and the outer` diameter ot the .droppingrollers should be such as to 'form a narrow `gap Q9 between said rollers afs-show] in Figs. 1 and 2.

The blade holder consists essentially ot a pair of Clamping members 30. 31, the widened lower extremities ot whieh are bent inwardly to t'orm a pair ot' shouldered jaws` 3Q. 33. reslwetirely, between whieh the blade ill to bestroplied is inserted. TMember 30 is provided with a pair ot laterally projecting studs journaled in eorrespondine` ears 0r lugs 3G formed on member 31. The upper ends of memberst), 3l are normally distended by a spring` 37 interposed between said members and tending' to torce jaws 33 toward one another. To more seeurely hold the blade between the jaws.a tig'ltenin eY screw 3S is tapped into member 30, Said serew being adapted to bear against member 31.

lylembers Btl, the blades of the various forms ot safety may be readily seeured thereto. lior-holding.Y the blade ot the so-ealled Gillette safety razor a 39 is rire-ted to member 30, said spring' being provided with a pair of studs l0 which7 by passing through eorrespontb ing' apertures ot' member 30, are adapted to engage the holes ot said blade. Member S0 is further provided with means for tirmly holding the blade of the Star safety razor in the proper height. For this' purpose member 30 is provided with, a. pair of 31. are so constructed that' parallel vertical slots 4l. Within which "are with a rib extending along their rear edge,

a blade of this construction being shown in Fig. l. The rib 45 of this blade rests upon the upper shoulders formed on jaws 32, 33, t-he latterbeing pressed againstthe blades by tightening screw 38.

Lugs 36 are perforated as at 46 for the engagement with a tubular shaft or sleeve 47 slid-ably mounted upon a pint-le 48.A The Vlatter is journaled in a bearing 49 formed on an 'upwardly projecting arm 50 of plate 10. At its forward end, sleeve 47 is threaded as at 51 for the engagement with a nut 52 which secures the blade holder against accidental disengagement from the sleeve during the stropping operation. lo sprevent a rotation ofthe holder upon sleeve 47,

the sleeve is provided with a nose 53 engagh u nate engagement wlth a pair ofstroplnng ing a corresponding notch G8 of rear lug 36. Pintle 48, carries a pin or`feather 54 which is received in a Alongitudinal slot 55 formed in sleeve 47, so that the latter will participate in the oscillating movement iinparted to pintle 48 in the following manner: To each gear wheel 28 is secured a cam disk 56. Between cams 56 is arranged a cam roller 57 carried by the lower end of a. re-

silient cam lever or arm 58 the upper end of u which is firmly secured to pintle 48. Cams y56 are so shaped as to impart roller 57- an osclllatlng movement which thus causes a corresponding oscillation of pintle 48, sleeve" 47 and biadehoider so, 31. Y in aus my the blade 34 carried by said holder will be brought into alternate engagement with one or the other stropping roller. By making arm 58 in the form of a spring, theblade will be forced against the rollers with a sulicient pressure so as to effect a quick sharpening thereof. The relative adjustment of the rollers should be such that when the blade contacts with one roller, the key 26 of the other roller passes the blade and vice versa. During this oscillation, an additional longitudinally reciprocating movement is imparted ner: In arm 50 of plate 10 is journaled the aXle 59 of a pinion 60 meshing into one of the-'gear wheels 28. Pinion 60, in turn, meshes into a gear wheel 6l loosely mounted upon pintle 48.. tlear vwheel 6l carries a cam 62 engaged by a pair of studs 63 projecting rearwardly from a collar-ttt which is firmly secured to sleeve 47. Between collar 64 and arm 50, thereare arranged a pair of to blade 34. in the following man-` springs 65 which tend toi hold pins 63 inl permanent engagement with cam' G2. It will thus be seen that by turning handle 2l, gear wheel 61 and cam 62 receive rotary movement, which, by pins vand collar G4, causes a corresponding longitudinal reciprocation of sleeve 47, blade holder 30, 3l, and

blade 34 carried by said holder. This re,- eiprooative movement of sleeve 47 upon pintle 48 is rendered possible by providing the longitudinal slot in said sleeve, while in 54 engaging said slot causes the desired oscillation of the holder during its reciprocation.

In order to prevent any reverse movement of the stropping rollers against the cutting edge of the blade, a spring pawl (5G is pivotA ed to arm 5t), said pawl engaging the teeth blI one of the gear wheels 28. To prevent any cutting et' layers 23 n'hile inserting the razor blade, plate 2() is provided with a pair of spaced lingers (57 that form a guard for such blade. 'j

.lt will be seenthat by the construction described, novel and .ejlfective means are pro- 'vidcd for sharpening or stropping the bladesI of the safety razors new in the market. By bringing the blade to be stropped into alter! l`he interpolation of the and the blade to be sharpened, permits a slight variation of the distance between its cutting edge and ,the pint'l vcarrying-t e blade holder so that the bladerequires no minute adjustment within the holder for Aetlecting a perfect sharpening. 'lhis ad vantage is dueto the fact that the resilient arm will at all times insure a prbper engagement of the blade y.with the stropping roll-ers, while' simultaneously pressing the blade yagainst said rollers.

.l claim:

l. A razor stropping machine comprising a pair of stropping rollers, means for simultaneousljy rotating said rollers inV opposite directions, a blade holder, and yielding means operatively'connected to said rollers for oscillating said blade holder.

2. razor stropping machine comprising a pair of stropping rollers, means for simulu taneously rotating said rollers in opposite directions, cams carried by the rollers, a

blade holder, a resilient arm operatively' connected to said'holder and engaging the cams, and means for longitudinally reciprocating the blade holder.

il.. A razor stropping machine comprising a pair of stropping rollers, means for simultaneously rotating said rollers in opposite directioiis, a pairrot first cams carried by the rollers, a resilient arm engaging the cams, a

second cam inter-geared with one ol said i-olleis, and a blade holder operatively conv va'pair` of stropping,` rollers, means for simultaneousl-y rotating said rollers in opposite directions, a `pair of irst camscarried by the rollers, a pintle, a resilient arm secured thereto and engaging said irstcams, a second cam rotatably mounted upon the pintle and intergeared with one of said rollers, a spring-influenced sleeve slidably mounted upon the pintle and having. a stud that engages the second cam, and a blade holder removably secured to the sleeve.

V5. A razor stropping machine comprising apair or' stropping rollers, means for simultaneously rotating said rollers in `opposite directions,` a` pair of irst cams carried by the rollers, a piutlehavinga eather,a resilient arm secured to the pintle and engaging said first. cams, a, second cam rotatably mounted upon the pintle and intergeared with one of said rollers, a spring-influenced slotted sleeve slidably mounted upon the pintle, the sleeve slot beingl engaged by the feather, a stud on the sleeve that 'engages the second cam, and a blade holder removably secured to t-he sleeve.

6. In a razor stropping machine, a rea'r plate, a pair of pins secured thereto, and intergeared stropping rollers rotatably mounted upon the pins, combined with a holder operatively connected to the rollers and adapted to receive a razor blade, a front plate connecting the pins, and a blade guard formed on said plate.

T. ln a razor stropping machine,` a blade holder comprising a tirst member having a v`pair of lugs and a second perforated member pivoted to said lugs and having a pair of parallel slots, a spring secured to the second member, studs on said spring that engage the perforations of said second member, a U-shaped bail engaging slots of the second member and having a pair of inv'ardly projecting pronos, and a set screw tapped into the bail.

MOS H. AV AM.

lVitnesses:

(ti-semen Tisci-ILER, ARTHUR F. ZUMPE.