US1106548A - Blade-sharpening mechanism. - Google Patents

Description

W. H. CRIOHTON-CLARKE. BLADE SHARPENING MECHANISM. APPLICATION FILED MAY 16,1907.

Patented Aug. 11, 1914,

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WILLIAM H. CRICHTON-CLARKE, OF NEW YORK, N. Y., ASSIGNOR T0 GILLETTE SAFETY RAZOR COMPANY, OF BOSTON, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS.

BLADE-SHARPENING MECHANISM.

Specification of Letters Patent.

Application filed May 16, 1907.

Patented Aug. 11, 1914.. Serial No. 374,075.

-TON-CLARKE, a. citizen of the United St ates.

residing in the city of New York. borough of Manhattan, county and State of New York, have invented certain new and useful Improvements in Blade-Sharpening Mccha nism, of which the following is a full. cl an. I

10 at its outer end to receive a post- 11 can and exact specification. v

My invention relates to blade shar ')ening mechanism and the object of my invention is to produce a machine that will simultane ously operate on opposite edges of a doubleedged blade, and that will be adapted for individual use and in connection with an ordinary razor strop. and to that end my invention consists in the employment of a suitable holding device for holding the blade and means for rocking the same. so that the opposite edges thereof shall simultaneously engage properly disposed abrading surfaces. such as a strop.

Figure 1 is an end elevation of one practicable form of my device in position upon a st'rop. Fig. 2 is a side elevation of said device with a blade in position. partly broken away. Fig. 3 is a cross section on the line 3* of Fig. 1. Fig. 4 is an enlarged end view of the rocking member and associated parts, partly in section. Figs. 5 and (1 are details of the blade support. Fig. T is a cross-section on the line 7 of Fig. 1. Fig. 8 is a detail of the returning spring for the rocking member.

Upon a frame plate 1 is mounted a pair of strop -guiding rollers 2, it, which are situated opposite each other upon said plate and receive the strop A on their inner faces and guide it over a third roller 1. around which it passes. returning on itself in substantially parallel paths. thereby forming two sl1bstantially parallel stropping surfaces. B. (1. separated from each other a distance equal to the diameter of roller 1.

Wfithin the space between the normal positions of the said two stropping surfaces when the strop is in position with a portion bent itself, is located a blade'lmlder. The bladeholder is shown mounted on a rod 5 carried by the frame-plate 1. A sleeve 7 s mounted on the rod 5 for rotation. Lon gitudinal movement of the sleeve is pre vented by an enlarged head 1; forming an annular flange or shoulder carried by the rod 5, at. its outer or free end. The blade holder is shown carried by this sleeve and comprises a base plate 8 preferably flat to conform to the shape of the blade and secured to or forming part of the sleeve. and a swinging clamping arm 5) hinged to the plate ')referabl v at its inner end. The arm 1 is shown provided with a perforation at ried by the plate 8 and a retaining arm 12 which is hinged to said post. to swing over the clamping arm when it, is in its closed position for the purpose of locking the i clamp in its closed or clamping position.

The blade to be sharpened. indicated by 13. is held trom edgewise movement upon the base plate by some suitable means. Lugs 11- are shown carried by the plate 8 and located in position to pass thrtnigh suitable perforations in the blade and in the arm 9.

As the device is moved relatively to the strop as a whole the blade-holder will be rocked from side to side. The rocking means for the blade holder is shown comprising a pinion 113 fast with the inner end 15 of the oscillatory sleeve 7. The pinion 16 is shown paced from the face of the plate 1 by a washer 1? carried by the rod 5 between such pinion and frame. This pinion is in mesh with a sector rack 18 forming part of a rocking member 19. The rocking member 19 is shown mounted on a stub shaft :20 carried by the frame plate 1. The rocking member is spaced from the face of the fran'ie plate by a washer 21. carried by the stub shaft. The rocking member is shown with a pair of flaring arms forming a space between them within which is the sector rack 18 and the pinion 1t). These arms are united at their outer ends by a sector having the stub sha ft 20 as a center. The face of the sector 22 is in position to be engaged by the strop face B. The sector will be moved by the strop as the same moves relatively to the stro 'iping machine, thereby, through the rack 18 oscillating the pinion '16 and causing the opposite edges of the blade 13 to bear upon the strop. For instance. if the strop is moving in the direction of the arrow (Fig. 1), the rocking member 11) will cause the blade to be rocked so that edge 13 of the blade will contact with part B of the st'r'op. and 1 will contact with part. and upon a reversal of the relative movement of the siirop and sfropping i'neel'iine, the (slimming edges will aliornete and 13*" will engage i enci 18 will engage B.

For the :mrpose of facilimtingzj the freeing oi. the blade from the strop and preventing the Cutting of the strep upon re 'ersill of strep movement l provide elastically F l hold able means egnins; which the blade is I in eontacl with the six-op, and this may he 11 ihe form of @pring 23 coiled around A peat 24 seenrml to l mime en as to he wt of the path oi the siren ml having its two endmpeojecting up:

wily and passing on eeeh side of a pin no in the lower mm of the rocking n: mher 9 and a retaii'ong pin 26 i the "from E on a movement of the ii'njiiki'i'-i, m 23 ill engage and h it one arm of the spring, and the urn: will remain in eonie,

v l. zedi,

fmni the drop and V x the blade to resume its norn'ml. idle nvention. It ohiii that numerous modi? aliens my imention nihont de piritthere-of, and 3 do not lie "we enmlfiv form hilt l clainil and desire to SPIYllli: by Lettezss Patent i9:

.5, razor etiomiing u double-edged oi) etropping mohine for strop ping 21 Flo edged. blade, i-omprising a rocking blew; 5sp' !t.= adapted to expose both edges of the blade, for aippoi-l i119: ahrmling' FUIEH'IQS on opposite sides of said support, in position to he engaged h both sirles of both QGQCF; of will blade, and means f r rolilcing mid aiippo. '3 zwtimte'l n '20 elareding surfaces, subatentially as n: scribed.

A razor stropping inzwh-ine {or strep- ;ilng double-eclge i blade, comprising :1 making blade support, adapted to eipose both edges of the hide, means for supporting ahmding snfiaces on opposite sides of will support. in position to be engaged by both fliilGE; of both edges of said hl=1Cle,\111d means: fOi' uni-king said. support actuated by he relative moiemeiit of the. machine and the ahrading smmz -es, and means for ZEllfl'hii" said, blade support to normal posilion.

initially described.

5. A P313301 slrogiping machine For $01113- ping: n lionhlewlgeil blade, comprising a roohing blade enpport, adapted to expose Booth evlgof U hlacle, means for supporting alive-ling snrfisiin posilion to he engaged by both fill i9 ooih edges of seiil blade so disposed, thel: El releii've movement of said machine and Bani olnmiing surfaces will cans-e the same to travel in opposite irections on the oppoeiie sides of said blade FSllD- port, and means ectuetml by such relative mo ement for Vol. ing said blade support, substantially ea"; (lesci'ihmll 6 A razor e'tronyio nmlfhine for stropping (hmhle-edgell blades, comprising a frame, strop guides, rollers mounted thereon, 1 fooling hlnde support mounted in said heme intermeliiote mid guides, a rocking member mounted in sueh frame in the path of the (I v V *nnection between said rooking meanne? :lml said blade support wherelw. as the 'T'Uifhiififl member is moved the blade support is: rod zed, causing the opposite edges of the blade to simultanemisly engage said strep, subetaniaily as (lQQTl'llJGd.

T, A blade eisgiport for a flexible-edged razor blaile, min mising a hearing, a sleeve rote mhly mount d thereon, means on eeii'i sleeve for attaching a blade thereto and located in position to expose both edges of the blade, and e clamping member pivoted t; said .eleeve, snlistantielly as described.

A siropping machine for double-edged razor hlmlee, comprising a frame, a rocking blade ei'ippm't in said frame, strep guides in said fn-m'ze e0 (liepoeecl as to cause said shop to move in oppos directions on the onposite sides of the blade support, a rocliing member engaging said strap, and a connection. between said rocking member and said zzii'op x neby, upon z'elative movement belween machine and said strop, the blade is rockecl to cause its opposite edges to simultaneo islv engage/said st r-o. at opposite eides upon movement in one irection, and upon the other Sid?? on a reverse of said movement, su'oetanlially as (lescribed.

9'. A shopping machine for donhle-eilgml razor hhlolvs, comprising a frame, :1 handle. stiogwguiiling rollers at opposite ends of said frame, a blade-supporting spindle intermediate said-rollers, a sleeve rotatably mounted therein, a blade clamp on said sleeve, a pinion likewise on said sleeve, a

- rocking member ournaled in said 'ft'ame, a rocking surface therein in the path of the strop, and a rack on said rocking member engaging said pinion, substantially as described.

10. A stropping machine for; doubleedged razor blades comprising a frame, a handle, strop-guiding rollers at opposite ends of said frame, a blade supporting spindle intermediate said rollers, a sleeve rotatably mounted thereon, a blade clamp on said sleeve, a pinion likewise on said sleeve, a rocking member jour-naled in said frame, a rocking surface therein in the path of the strop, a rack on said rocking member engaging said pinion, and a spring for automatically'returning said rocking member to upright position, substantially as described 11. A stropping machine for double edged razor blades, comprising a strop, a frame, a handle,'strop-gu1ding rollers at opposite ends of said frame, abl'ade-supporting spindle intermediate said rollers, aslceve rotatably mounted thereon, a blade clamp on said sleeve, a pinion likewise on said sleeve, a rocking member journaled in said frame, a rocking surface therein in the path of the strop, a recess at the end of said strep for receivingsaid rocking surface, and a rack on said rocking member engaging said pinion, substantially as describe 12. A stropping machine for doubleedged razor blades, comprising a frame, strop-guiding rollers so disposed therein that the strop will be caused to traverse said frame in parallel paths and in opposite I directions, a blade support mounted in said frame between said strep paths to rock, means on said support for securing a blade thereto so as to expose both its edges, a rockmember mounted in said frame 1n posirectirns, a blade su port mounted in said frame between sai strop paths to rock, means on said support for securing a blade thereto so as to expose both its edges, a reciring member mounted in said frame in position to engage said strop, a spring engaging said rocking member for retracting same, and a connection between said rocking memher and said blade support, substantially as described.

14. The combination with a frame, of a blade holder having means for positioning a double edged blade for exposing both edges thereof mounted "on the frame, strep guides on the frame located in position to guide a strop past the opposite sides of the holder, a strop disposed on the guides, and bolder actuating means for causing the re spective edges of the blade held thereby to alternately engage the strep at the .respec tive sides of the holder.

In testimony whereof, I have hereunto set my name in the presence of two subscribing witnesses.

'WILLIAM H. CRIGHTON-CLARKE. Witnesses: AnoLPH F. DrNsE,

CHARLES F. SCHENBER.

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