US1084694A

US1084694A - Safety-razor-stropping device.

Info

Publication number: US1084694A
Application number: US63881211A
Authority: US
Inventors: Pliny Catucci
Original assignee: A F Meisselbach & Brother
Current assignee: A F Meisselbach & Brother
Priority date: 1911-07-17
Filing date: 1911-07-17
Publication date: 1914-01-20
Anticipated expiration: 1931-01-20

Description

P. GATUCCI TY RAZOR STROPPING DEVICE. APPLIUATION FILI-111 JULY 17 SAFE Patented J an. 20, 1914.

UNITED srarn s regimi? ortica.

PLINY CATUCCI, 0F NEWARK, NEW JERSEY, ASSIGNOR T0 A. F. MEISSELBAH &

BROTHER, A CORPORATION OF NEW JERSEY.

SAFETY-RAZOR-STROPPING DEITICE.

Patented' J an. 20,1914.

Application filed July 17, 1911. Serial No. 638,812.

To all whom it may concern Bc .it known that I, ILINY CAfmeoI, a citizen of the United States, and resident of the city of Newark,L county'of Essex, and State of New Jersey, have invented certain new and useful Improvements in Safety- Razor- Stropping Devices, of which the following is a true and exact description, such as will enable others skilled in the art to which it pertains to make, construct, and use the same.

The object of my invention is to provide a neat, eli'ective and cheap device for ,sharpening rat/.or blades of the double edged type by means of a single mutilated cylindrical st'roppin g roller.

It further contemplates mechanism for preventing the rounding oit the edge of the blade as it leaves the strop and further provides mechanism :tor reciprocating the strop roller vso as to give a heel to point l movement of the blade.

Another object of my invention is to provide a neat, ettective and cheap holder for the blade during the process of stropping.

Other objects will appear during the course of the following detailed description, taken in connection with the accompanying drawings wherein:

Figure 1 is a side elevation of the complete structure. Fig. 2 is a front elevation of the same. Figs. 3 and LIt are respectively front and side elevations illustrating a moditied form of the holding device. Fig. 5 is a section through the blade holder and strop roller shaft illustrating the position taken by the blade as it leaves the tace of the strop parts throughout the speciiicationand drawpreparatory to reversal. the driving gear train. Figs. 7 and 8 illustrate respectively, asectional and plan view lof the blade locking mechanism. Fig. 9 illustrates a modified form in section of the blade locking device. Figs. 10 and 11 illustrate, respectively in plan and side elevation, a still further modiied form of blade hold- -ing device. Fig. 12 illustrates a cross-sectional view of the strop roller showing the merlihod ot securingy the strop thereon whereby.it may be readily removed and reversed so as to malte use ot both sides ci the strop.

Similar reference numerals refer to like 1n carryiiigolll' my invention, I provide a 4 trame- 1 of sheet metal bent into the form illustrated in Figs. 1 and 2, so as to provide Fig. (3 illustrates' the vertical

side bearing arms

2 and 3 and the lateral arm 4 bent at right angles as sllown in Fig. 1 to which is secured the hanc e 5.

In Figs. 3 and 4, I have shown, substantially the same form of frame with the exception that I have omitted the lateral arm Ll, and secured directly to the bottom of the frame a handle device by means of the rivetS 7. Otherwise the operative structure ot the device lillustrated in the two modifications is the same, and a description of the one will suflice for a description of the other.

Secured to the outer side oi the upright arm 3 by means of the screws 8 is the `bearing cap 9 of the shape clearly illustrated in Figs. 1, 2, 3, and 4, respectively. This bearto form a protecting cover for the driving gears hereinafter described.`

Mounted in the

vertical side arms

2 and 3 and finding bearings respectively in the arm 2 and the cap 9 is the shaft 10 upon which is slidably mounted the mutilated roller 11. The shaft 10 has at its extreme end, a gear wheel 12 and a sleeve 13 upon 'which latter is mounted a cam 1li as clearly shown in Figs. 2 and 8. At the left hand end ot the roller 1l' and concentric with the shaft 10 is a substantially semi-circular cam 15 which eoperates with small roller 1G, the latter being` carried upon a bearing 17 secured to the side plate or arm 2. Between the opposite end oi" the roller 11 and the cam 14, and surrounding the shaft 10 is a coil spring 18 the tendency of which is to crowd the roller l1 with its cam 15 against the-roller 1G, so that as the roller 11 rotates `it is given a slightly reciprocating motion in the direction ot' its axis. As a means for causing the roller 11 to rotate with the shaft 10 and yet have a small amount of lost motion, I provide a pin 1) projecting from the end of the roller 11 through a somewhat larger aperture 20 in the cam 111.

Mounted in the side plate 3 and the cap 9, is a sha'ft21 carrying thegear when '22, the lati er meshingwith and driving the gear 12.4 The shaft. 21 projects somewhat outside of the plate or cap 5l and has' splined thereon the hub oi' the crank 2S.

Meshing with the gear 22 is a smaller `gear 24, the latter loosely mounted upon a shaft The hub of the gear 24- is reduced at 2G so as to forni a bearing'in the cap or plate ing cap 9 is cupped as shown in Fig. 2 so as i 'la 9 as clearly shown in Fig. 2. The shaft 25 is reduced in diameter where it passes through the gear 24, and has provided at its outer end a washer 27 held in place by a screw 28. The larger portion 29 of the shaft 25 is cut away as at 30 (Fig. 7) to form a seat for the razor blade 33. Rigidly secured to the enlarged portion 29 is a double arm 34 carrying at'its outer extremities the two

rollers

35 and 36 in alinement with the cam 14. Mounted between the face of the arm 34 and the end of the gear 24 is a friction plate 37 and a spring 38 which form a friction device and permit the rotation of the g\ar 24 independent of the shaft 25 when the rotation of the shaft 25 is resisted by the blade 33 bearing upon the face of the razor strop. The opposite end of the shaft 25 is reduced as at 39 so as to find a bearing in tleie upper end of the arm 2. The axis of thev r d uced portion'39 is bored out and screw threaded as at 40 to receive the locking cone pointed thumb screw 41 for a purpose hereinafter to be described.

Razor blades of the type for which this device is adapted are provided with-a middle and two lateral apertures. In-order to rigidly hold such blades in the cut-away portion 30 of the shaft 25, I provide two

short studs

42, 43 and alonger stud 44 the latter being located in the middle of the cut-away portion 30. I next provide a flat plate 45 having a central aperture 46 to take over .the stud 44, and of a length somewhat greater than the length of the cut-a-way portion 30 s'o that, when in position, one end of the plate 45 will be received in the undercut slot 31, while the opposite end, being notched as at 47 will straddle the larger portion of the shaft and the slight central depressed notch 48 will project below the -axial line of the shaft, in position to receive the cone pointed end of the locking thumb screw 41 which, when screwed home, will rigidly hold the plate 45 in position, thereby clamping the blade 33 in a plane passing through the axis of the shaft 25. The studs 42 43, ordinarily project somewhat higher than the thickness of the blade 33, and in order that the clamping plate 45 may find a full bearing throughout the length of the blade, I rof vide depressions 49 in the plate 45 of a depth sufficient to clear the projecting ends of the

studs

42, 43.

As a modification of the locking device illustrated in Figs. 7 and 8, I may provide the following structure: The shaft 25 may have its pivot bearing 50 elongated and counter-bored as at 50 (Fig. 9). A pull pin 5.1 with a collar 52 and projecting cone point 53 is inserted in the counterbored portion with a spring 54 bearing upon'the collar 52 and held in position by the centrally apertured cap 5,5. In this structure, it is only necessary to pull the pinv51, with its cone point, free from the depression 48,

Apartially cylindrical, having one side cut away as shown, and being surrounded by a considerable thickness of felt as 5G over which is passed the leather strop 57 the ends of which are brought together upon the flat side of the roller 11 and buttoned over the headed pin 58 in a manner which will be readily understood. This method of securing the strop 57 to the roller 1l permits the strop 57 to be readily removed and reversed 'so that a honing composition maybe applied to one side of the strop 57 and the other may be left as a finishing side.

The cam 14 isgenerallysemicircular in plan but has the projections 60, 61 at the extremities of its straight side. These projeetions 60, 61v extend out into the path ofv the

rollers

35, 36 just at the point where the blade 33 is leaving the face of the razor strop 57 as clearly illustrated in Fig. 5 so that the edge of the blade does not follow the turn of .the strop 57 with a' resulting rounding of said edge.

The operation of the device is as follows:'

The razor blade having been clamped in position, the operator turns the crank 23 first in one direction several turns, and thenreverses the direction. lThe rotation of the crank, and with it, the gear 22 causes a simultaneous rotation of the gears 12 and4 24. '.lhe rotation of the gear 12 causes the rotation of the roller 11 to bring the strop 57 into the path of the blade 33 as clearly illustrated in Figs. l, 2, 3, and 4. Vhile this rotation continues, the blade willbear with considerable force upon the strop 57, due to the tendency of the shaft 25 to rotate throughthe friction device 37 38,. but when thecut away portion of the roller 11 comesaround to the blade 33 and one of the

rollers

35, 36 passes one-of the projections G0, 61, then the blade, no longer bearing upon the face of the strop 57 offers no further resistance to the rotation of the shaft 25 through the gear 24, and the friction device 37, 38, with the result that one of the

rollers

35, 36 upon the arm 34 will swing across the straight side of the cam 14, during the reversal of the blade, so that when the cylindrical portion of the roller 11, with the strop 57 comes around again, the other edge of the blade is brought into position to bear against the face of thestrop 57. This operation takes place no matthe blade at one cut-tino edoe and then 'to the opposite side at the other cutting edge when the crank 23 is turned in one direction, and vice versa when said crank is turned in the opposite direction. The reversal of the blade takes place during the time when the flat face of the roller 11 is turning next to the shaft 1n practice, the crank 23 is turned -two or three times in one direction, and then the same number of times in the opposite direction. lVhile such stropping is taking place, the holding ofthe blade in the posi tion shown in Fig. 5 by means of the projections of), (il upon the cam 14; at the point where the blade leaves the strop 57, prevents the edge of the blade 33 from following the sharp turn or angle of the roller 11 and thus prevents the rounding of the edge of the blade. During the rotation of the roller 11 with it-s strop 57, the cam 15 and roller 1G in conjunction with the spring 18 will give the roller 11 a slightly reciprocating motion upon the shaft 10 with a resulting heel to point stropping of the blade so much desired in devices of this kind.

It will thus be seen that I have provided a strapping device for double edged blades .embodying all of the objects heretofore set out, while at the same time, with automatic machinery forturning the same out' in large quantities, the resulting structure is cheap to construct and not liable.` to get out of order.

I claim:

1. In a razor stropping device, the combination of a semi-cylindrical stropping roller. a blade holder, means for securing a doubleedged razor blade thereto, means for rotating said stropping roller in either direction, gear and friction connections between said rotating means and said holder to cause rotation of both holder and roller in the same relative directions, when the fiat side of said roller passes adjacent to said holder, and to cause one edge of the razor blade to bear upon the cylindrical stropping surface of said roller during the remainder of the rotation thereof,

2. In a razor stropping device, the combination of a substantially Senn-cylindrical stropping roller, a blade holder shaft having means thereon for securing a double edged razor blade thereto, means for rotating said roller in either direction, a pinion mounted upon and in frictional engagement with said blade holder shaft, gear connections between said pinion and said roller rotating means whereby said razor blade may be alterimtclyv held in contact. with the stropping surface of said roller, and Igiven one half a revolution faces in all,

'ping when the non-cylindrical surface of said roller is passing adjacent to said blade.

3. In afrazor stropping device, the eon1- bination of a frame,-a roller shaft and a blade holder shaft rotatably mounted in said frame, a substantially semi-cylindrical stroproller mounted upon said roller shaft to rotate therewith, gear connections between said shafts for normally rotating them in the same direction, friction clutch mechanism between said gear connection and said blade holder shaft whereby a razor blade, secured upon said 'razor blade holder shaft may be held in contact with the stropping surface ofl said roller and given a half revolution when -the non-cylindrical surface of said roller is passing adjacent tothe said blade.

4. In a stroppiag device for double-edged razor blades, the combination of a substantially semi-cylindrical stropping roller, a shaft upon which said roller is mounted, a blade holder shaft parallel to said roller shaft, means for securing a razor blade to said holder shaft wit-h.the path of its edge in the path of the cylindrical surface of said roller, gear and friction connections between said roller shaft and said holder shaft whereby rotation of said roller shaft will cause the edge of said blade to bear upon the stropping surface of said roller, and produce one half a revolution ofl said holder shaft when the edge of said blade passes-the fiat side of said stropping roller.

5. 'In a razor stropping device, the combination of a supporting frame, a stropping roller shaft and a blade holder shaft connec-` shaft, a substantially semi-cylindrical strop- 'ping roller mounted upon said stropping roller shaft to rotate therewith, means upon said roller shaft co-acting with means upon said holder shaft for preventing the edge of the razor blade from following the non-cylindrical surface of said stropping roller, but for permitting the free rotation of said holder and blade while said` non-cylindrical surface is passing adjacent to said blade.

6. In a razor 'blade stropping device, the combination of 'a blade holderlshaftcarrying a razor blade thereon and a stropping roller shaft. with a semi-cylindrical stropping roller thereon, a frame in which said shafts are mounted parallel to each other, gear mechanisin for normally rotating said shafts in the same direction, a cam on the stropping roller shaft and an armon said blade holder shaft for contact. with said cam, to check the 'rotation of said blade holder shaft.

,-,- of said blade to bear upon the stropping roller, means for rotating said roller in eithel` ing the passing of the fiat side of Said roller direction, a razor blade holder having means adjacent lo said holder.

thereon for holding a' double edged razor This specification signed and witnessed blade, means for causing the face of one edge this 14th day of July, 1911.

PLINY CATUCCI. face oi said roller, and for rotating said blade holder with the blade therein for reverse Contact with lsaid Stropping roller, dur- VVitnesSes: A

Louis M. SANDERS, 1V. B. WALTZINGER.