US1031527A - Safety-razor-stropping device. - Google Patents

Description

APPLICATION FILED guy 26, 1-911;

Patented July 2, 1912.

INVENTORS I AITTORIVEY.

county sf W be a n We Con-"MAN f the wthe eisey, in

have invented certain I Dev gaieigf-i azoiw $013 ices, Li? "which longitudinally back and. forth speciiica-tinn.

the folidwing is :a-elstes 0 that class of invention u safety razor strapping devicesv which are adapted to be slid along a stamp 01 strap by means of s handle, the safe/t razor lolscle being held in frictions conteci with the strap or strap by fi'icaion of sire-* device there "*nri automatically arsed. the

device e abjects iiiveiit' w' fQ-TCO- wide stray/ ng ileviee eif is elass in an l) is to llG sherpei 2:1 is held quely 1 1e strep 0isteep; sml i e sin l is lest-meiion 01" leoseness eliie "he helelei: be siti'vely pimtecl be'tli its eimosite-e 59 "that can beam msveizien 's there J1 with respee'; bliss meg except Z110V6Z1Z-3X}i i) do by nivei-ing" seidhoider in inclined p9 1 i; he ""lgllli 'lj lRLRSVGYSi? die strep, an m obize i otli nenlimitages and resuiis as be' sz-e ight out in the following description: Ref-e1 e w the in which ie'miinemls m5 re ciiie the peri s tli euglioue the .figiises, Figurei f pl'zi' ew vies in use 11 0011 lines. th I lieldez'g indiseveral.

3 1S end I ion,

swimgime uprightpesi'eion so the; s blse may be readily placed in position; F is a perspective iew of the body 01."

frame With its handle, ancl gig. 5 is 21 detail cross section an line A-A Fig. 1 looking-in the direction indicated by the arrow In said. imwiiigs, 1 indicates the befiy oriram'e M30111: improved sti'oppiiig device, which boey may be swamped from Sl79ll metal the like "133d afierwnr lieutirate she shape, assliewzi in 4i. beFy or frame camp s 11 0 opposilie is rive'ecl 0i" eilierwise seciirefl.

s sicle @GX'iliGBS il xiilptlaci ie be at the ep e strap 6, see 1 ill the eress-pleee meme. 1h

the hand e ciepeiicliiig therefrom in eeiwenient pesition to slide the levies imagitudinelly the six-0 3..

At the emls 01% t are rollers '2, 7 anti 8, 8 lllie i'eiieirs of each pair being plecefi one'abeve the ether and allowingenougli space between for finest-p 6, to be tlireedetl between the rollers 'Z, 7 at one em cf the frame encl (mt tlirough the 001- resgieiislingj mllers 8 8 at the ogposi'be i of its encls, each sicle L 3 of the tire e lies an iigpwerdiy gii'ejecti'ng' (H? one of seicl sets as 9, is longer lesser n s "forming bearings er ends 0. 3

as upper 1i Yer K'Gilfif 12., 'iQOLll excemliiig; ti-ensl he I 'ne 1., The l ioles bear is; 13 1' roller 12- ere at the same iifiiiifil an 231% ears 9, 10., as tlie ollei 1% eme .l. O1 parallel roller lies above 'tl strep 6, and below said strep, OEJPGSlLE.Sl(lS of iherollei l2, stile elleis 14:, "1:01:11-

s-ttheir emls in l v t e side pieces 3 of the frame. last-mentioned sellers 1 1, 14%. are l'LU-i? low eiiou with zespeet t0 the roller 12 se strep =3 stmighten @1122 between iliem, but the, Tellers always held strep with a bend in it\ sliewii, 50 that there s friciienel erigsgerelleflQ. Said be veiiezli by is thelisncl it e bales or 15 5 my the semi il 'a-re eliili ilerent lmlf llls on Sine ears 3?, 10, so that said shaft is inclined with respect to the plane of the frame 1, mi has one end farther mmy from the strep than the other end. At the same time; it will be noted, the shaft 11 iensien e.

is in the same plane with the roller 12, and

this plane preferably is Qerpendicularly transverse of the frameil. The roller 12 X mi? 11 are eenneelzetletthe low end of "ilie m is? by mesgis e1": p'iniens or gears 17, 18, $0 flie drawing the strapping device along the strap will tend who 'tm'n the said e the (Erection of slirling shaft 1.1, aim the s zrogpmg is re ersed the shaft The shaft 11 carries the blade holder 19, which holder may consist of a piece of sheetmetal wrapped around the said shaft and .\-.Qflll0(l together at one side thereof, as at 20. so to provide resilient clamping jaws :12, to receive the rarer blade 22 between themselves, as has in general been common heretofore. E other suitable detail conn of blade hold r can be employed, the feature of our invention next to he described can be applied. The edge the jaws of said blade holder, which receive ihe blade 22, is: inclined. with respect to the shaft 11,-as clearly shown in the drawing, so that the blade while being sharpened lies slantingly across -the st-rop, or in oblique position thereon. The wide end of the blade holder is at the high end of the shaft- 11, and it the inclined posilion of said shaft which. has been described that insures the edge of the razor blade lying fiat upon the strep, even though the blade holder is wider at one end than the other. The angle of inclination of the shaft 11 bears such a relation to the angle upon which the edge of the blade holder extends obliquely across the strep, as that the edge will lie flat upon the strep.

The oairs of upper and lower end rollers 7, 7, 8, 8 which are mounted in opposite ends of the frame 1 adjacent to the edge of the blade to be sharpened, hold the strep flat and -tmooth for said blade and keep the stropping device in proper position.thereon. Preferably these rollers are inclined, as shown in the drawings, so as to be parallel to the blade being sharpened, and therefore one side piece, as 3, of the frame 1, is longer than the other side piece 2. We do not wish to confine ourselves to this oblique position of the end rollers 7, 8 through which the strep passes, however, as they may under some conditions extend at right angles to the strop. Furthermore, it may be possible sometimes to use simple bars, instead of rollers 7, 8, without causing undue friction.

The operation of the device-is as follows:

- The strop is threaded between the rollcrs 7,

7. at one end of the fame 1, over the supporting roller 14, under the ccnter roller 19, over the other supporting roller lel, and thence out through the other end rollers 8, of the device. llhc blade holderis then swung up, as shown in Fig. 3, and the blade to be sharpened or stropped is inserted therein with its outer edge parallel to the edge. ofv said blade holder. The attaching end of the strop, not shown, is hooked over any suitable support, "while its opposite end, likewise not shown, is held in one hand. The other hand grips the handle 5 of the stropping device and rcciprocatcs said device back and forth along the strep. It will be noted that, since the center roller 12 holds the strop down between the two adjacent rollers 1a, 1 1, the more pull exerted by the hand upon the strop' the more tendency there will be toturn the roller 12. This tendency is transmitted through the gears 17. 18 to the shaft 11 whichcarries' the blade holder 19, and obviously if the edge of said holderis not already in contact with the strep 6, it will be immediately broughtin contact therewith on the side of the shaft 11 toward the rear of the moving device. When the blade is resting upon the strep, the roller 12 cannotturn, and will,slip on the strop, but obviously the pressure of the blade upon the strop can be regulated by the tension to which the strep is drawn. The blade tlrus-qoresses upon the strop for the entire length of travel of the device, and is automatically reversed by the blade holder as the direction of movement of the strepping device is reversed at the ends of its travel, the edge ofthe blade always lying obliquely of the strop. I 5

. It will be noted that by our; improved con struction the transverse members 14 1d are beneath the strep where they are not only out of the way of the blade holder and blade, but also serve to hold the strop'up against said blade. Said transverse members can thus be placed close to the middle roller 12, so that the blade engages the strepv outside said members and the support they give to it. Furthermore, by employing the cndx uides 0r rollers 7, 7 and 8, 8, the strop is supported or upheld on both sides of the point of engagement of the blade with it.

Having thus described the invention, what we claim is:

1. A safety razor stropping device, comprising a frame adapted to slide longitudinally of a strop, a roller in said fame, means for forcing the strep into frictional engagement with the roller, a blade holder pivoted on said frame with the line of 'iivoting transverse tothe strep when the device is in use and at an angle to the plane of the strop, and means for transmitting rotary movement to said blade holder from. said roller.

2. safety razor stroppi'ng device, comprising a frame adapted to slide longitudinally of a strop, a rollerin said frame,

means for forcing the stro-p into frictional engagen'rent with the roller, a blade holder pivoted on said frame with the line of pivoting transverse to [he strop whcn'thc device is in use and at 'an angle to the plane of tho strep, said blade-holder having its free blade receiving edge at an angle to the line of pivoting of said blade holder, and means for transn'iitting rotary movement to said blade holder from said roller.

3. ii. safety razor stropping device, comprising aframe adapted to slide longitudinally of a strep, a roller in said frame, nit-ans for ;t'oroing' the strop into frictional en ageuient with the roller, :1 blade holder pivoted at the ends of one of its edges in lined position on the frame with said edge at an angle to the plane of the strop when 'lev e in use and having its other or solving edge at an angle. to said l edge, and means for transnovement to said blade d roller.

'tut razor stropping device. comtwine ,nlaptecl to slide longitudi- 2 strep, a roller in said frame, ircing the strep into frictional 1 migag'ement nvoted upon 'iilrihe roller, a blade holder frame in. it fixed line extending the frame at right angles thereto and having a bladereeeiving edge at an angle to said line of pivoting, and

me-ins for transmitting rotary movement to said blade bolder from said roller.

I). A safety razor stropping device, comprising :1 frame adapted to slide longitudinally of a strep, a roller in said frame, means for torch g the strop into friotiona engagei'nent vith the roller, a blade holder pivoted in said frame upon a fixed line extending ac the strep at substantially right angles thereto and at an angle to the plane thercot when the device is in use, and means for transmitting rotary movement to said blade holder from said roller.

6. A safety razor stroppiug device, comprising ov frame adapted to slide longitndinally ot a strop, a roller in said frame, means for forcing the strop into frictional engagement with the roller, 2. blade holder pivoted on said frame in a transverse line at on angle to the plane of the frame and having its free receiving edge at an angle to said line of pivoting, means for transmitting rotary movement to said blade holder trom said roller, and guides for the strop onsaid frau'ie substantiallyparallel to said. edge of the blade holder.

7. A safety razor stroppi-ng device, comprising a frame adapted to slide longitudinally ot the strop, a roller in said frame,

-means for forcing the strop into frictional engagement with said roller, a blade holder pivoted in said frame and having means for holding ablade at an angle to the line of pivoting oi the blade holder, said line of pivoting being at such an angle to the plane of the strop that the blade holding means will lie in said plane, and means for transmitting rotary movement to said blade holder from the said roller.

8. In a safety razor stropping device, the combination ot a frame comprising opposite parallel sides, a cross-piece between said sides and a handle whereby said frame can be reciprocated in sliding engagement with a strop, guides for the strop at botli'ends of said frame, a roller mounted in said frame intermediate of said guides, means tor .t'orcing the strep into frictional engagement frame in a fixed line transversely thereof, a, blade holder on said shaft adapted to hold the blade with its edge at an angle to said shaft, said shaft being at such an angle to the plane of the strop that the edge of a blade in said blade holder will lie flat upon the strep, and means for transmitting rotary motion from said roller to said shaft.

9. In a safety razor stropping device, a frame comprising opposite parallel sides, a cross-piece between said sides, and ahandle whereby said frame can be reeiprocated longitudinally of a strop, ripper and lower uides for the strop at both ends of said frame, a roller intermediate of said guides, transverse members on opposite sides of said roller adapted to force the shop into frictional engagement with said roller, ablade holder pivoted above said roller in a fixed line at an angle to said roller, both said line of pivoting and the roller being in a plane which intersects the plane of the frame at substantially right angles to the length thereof, and means for transmitting rotary motion from said roller to said blade holder.

CLYDE D. COFFMAN. CLIFFORD B. COFFMAN.

in the presence (if-- L. C. llon'roiv, Conn 1-11! is ZABRISKIE.

with said roller, a shaft journaled in said

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