US1113210A - Apparatus for grinding and sharpening razors, knives, and the like. - Google Patents

Description

E. GOOLNIK.

APPARATUS FOR GRINDING AND S HARPENING RAZORS, KNIVES, AND THE LIKE. APPLICATION IILED MAY 7. 1914.

1,1 1 3,210, Patented Oct. 13, 1914.

3 SHEETS-SHEET l.

.7 1 GOOLNIK.

APPARATUS FOR GRINDING AND SHARPENING RAZORS, KNIVES, AND THE LIKE.

APPLICATION FILED MAY 7. 1914.

1,1 13,210. Patented 001.13, 1914.

3 SHEETS SHEET 2.

E. GOOLIIIK.

APPARATUS FOR GRINDING AND SHARPE'NING RAZORS, KNIVES, AND THE LIKE.

APPLICATION FILED MAY 7,1914.

Patented Oct. 13, 1914.

3 SHEETS HEET 2 kfi 60 01,051,

UNITE s'rarns PATENT ornion.

ENOCH GOOLNIK, OF MILE END, LONDON, ENGLAND.

APPARATUS FOR GRINDING AND SHAEPENING RAZORS, KNIVES, AND THE LIKE.

To all'whom it may concern:

I Be it known that I, ENoon' GooLNIn, residing at 1 Tredegar Square, Mile End, London, England, have invented certain new and useful Improvements in Apparatus for Grinding and Sharpening Razors, Knives, and the like; and I do hereby declare the following to be a full, clear, and

V ping operation may be accomplished in an easy and convenient manner.

To this .end the invention consists in a pair'or pairs of'suitable rollers spaced apart and adapted to be continuously rotated and simultaneously slid backward and forward, the razor or knife being held in a carrier device between the rollers, said carrier device being intermittently actuated in such manner that the razor or other article is caused to bear first upon one of the said rollers formingthe pair and then upon the other.

The carrier device in which the razor or the like is held during treatment is adapted toalways cause the razor or the like to bear against the rollers with a resilient or elastic pressure, and means are provided for easily obtaining the exact adjustment of the razor oiflthe like with regard to the rollers.

The accompanying drawings illustrate by way of example a machine made in accordance with the invention adapted for use for grind ng and stropping razors.

I'- igure 1 is a part sectional side elevation of the complete machine; Fig. 2 is a side elevation from the right of Fig. 1, certain parts being removed for elearness; Fig. 3 is a sectional elevation on line A;-i3 of Fig. 1; Fig. "l is a part plan of Fig. 1; Figs. 5 and 6 are details showing respectively an end view of the razor holder, and the post tions of the razor blade with respect to the grinding rolls; Figs. '7 and 8 are respectively front elevation and side elevation of a modification, and, Figs. 9 and 10 are details of further modifications.

Referring first to Figs. 1-6. As shown,

Specification of Letters Patent.

Application filed May 7, 1914.

wheels dius rod 7'.

Patented Oct. 13, 1914.

Serial No. 836,916.

the apparatus comprises a framing consisting of two spaced plates (1 a connected by distance bolts 0 and mounted upon a suit able base 11. Slidably and rotatablymounted in these two plates are a pair of horizontal rods 0 0 arranged parallel to each other the ends of which rods are provided with rollers d d and e 6 respectively, those d d having a leather covered surface for the purpose of stropping, while those 6 6 may be composed of any suitable grinding inledia, such as emery, carborundum or the The rods 0 c are coupled together by gear Y 7, one of which meshes with a gear wheel 2 adapted to be driven to rotate both f and f in opposite directions, from the hand wheel 9 through shaft g and interposed gear wheels f f and f he pairs of rollers d, e, in addition to be- .ing rotated as described, are also caused to 'be simultaneously slid to and fro axially. For this purpose a lever Ii. is pivotally mounted to one side of the machine at h the upper torked end of which engages with a cross bar 0" carried by the rods 0 0 and the lower forked ends of said lever it engage" w th pins mounted upon a cross-head 2' which 18 freely mounted by a pin and slot connection 2' upon the endof a pivoted ra; At the lower side of this rod is provided a pin or friction roller 9" adapted to co-act with a cam groove is formed in a drum is, which cam groove is so formed as to impart a to and fro movement to the pin when rotated by the handwheel g.

The rods 0 c carrying the stroppiiig and grinding rollers are formed with feathers c to allow of the combined rotary and sliding movement thereof.

The razors or other implen'ients to be operated upon are carried in holding devices slmwn at X at each side of the machine as in Fig. l, and in side view and plan in Figs. 5 and 4. Each of those holding de- The bars n are hingedly mounted about a vertical pivot n at each end of a rock shaft 79 disposed centrally above the rods 0 0 and said bars are adjustable about said pivots by means of a screw 0 one end of which is revolubly mounted in a pivoted bush 0 on a bracket or arm 32 while the other end of said screw works in a pivoted nut 0 on the bar 11.

9 indicates in dotted lines the razor in position for operation the edge of which it will be noticed is just above the centers of the rollers d e and by means of the adjusting screws m and 0 the position of the razor or other implement both as regards height and alinement can be easily and exactly obtained.

The shaft p is adapted to be rocked intermittently so as to move the razor or knife at the end of each sliding movement of the rollers, d e, from engagement with one roller of the pair to the other; this is shown in Fig. 6 where the full line 9 indicates the position of the razor while the rollers are sliding axially in one direction, and the dotted line Q2 when moving in the opposite direction.

The rocking movement imparted by the shaft 7) to the part 1 is greater than that of the actual movement of the razor or knife blade and thus by reason of the springs m said blade is kept in contact with the respective rollers by a yielding or resilient pressure.

The shaft p is intermittently rocked by means of a cam 1' mounted on the driving shaft 9 of the apparatus, spring pressed lever s with friction roller 8, link 8 and arm .9 The cam r is formed with two concentric portions of different radius whereby the rock shaft 7) and carriers X are held stationary' in one position or the other during the sliding movement of the stropping and grinding rollers.

In' use the razors to be ground or stropped are clamped in the holders, adjusted if required in regard to the rollers and the handle turned smartly whereupon the rollers are rotated and slid along each side edge alternately which combined action together with the resilient pressure quickly and efficiently effects the desired end.

The apparatus, of course, may, instead of being driven by hand, be operated from a .suitable motor or in other desired way.

It will be understood that any other suitable mechanism for obtaining the differentmotions may be employed instead of that described. For instance, Figs. 7 and 8 show a modified method of imparting the intermittent side movement to the holders. In the construction the bar ;0 is not rocked as in the previous construction but is adapted to he slid first to one side and then to the other by means of a pivoted lever if having -holdcr carried by the a slotted or forked end at for engaging the shaft 3) while the lower end is actuated by the cam r similarly to the first described arrangement. In order to insure the bar p being maintained in proper axial position during its movement, a pair of toothed racks u are fixedly mounted upon the said bar adapted to co act with a pair of pinions u carried upon a counter shaft u revolubly mounted in the frames a a whereby the transverse travel of the bar 2 is uniform. The bar ,1) is provided with guide blocks 1 sliding in slots or guideways p in t e frames which allows of the sliding movement and prevents the bar from turning.

Fig. 9 shows a modification of the first de scribed arrangement for imparting the rocking movement to the bar p. In this form the intermediate levers s s are dispensed with and a disk 0 having a cam groove "0 formed in its face is adapted to intermittently actuate the bar 19 through arm '0 and roller 11 direct. The said cam disk '0 is driven in any suitable manner as, for instance, as shown, from the gear wheel f by wheel 2:.

Fig. 10 shows a modified method of imparting the sliding movement to the rods 0 0 In this form the cam r is dispensed with and the lower end of the lever h is coupled by an arm to to an extension :12 mounted upon a shaft y and driven through bevel gearing z.

By a further modification of the last construction the rods 0 0 could be coupled direct to a suitably driven crank by means of a connecting rod.

Having now particularly described and ascertained the nature of my Said invention and in what manner the same is to be per formed, I declare that what I claim is 1. In a grinding machine, the combination, with a supporting frame, and a blade rame; of two shafts journaled in the frame and provided with sharpening rollers, driving mechanism for revolving the said shafts in opposite directions, a cam also revolved by the said driving mechanism, a radius-rod pivoted at one end to the frame and having a projectlon at its free end which engages with the said cam, a crosshead pivoted to the said radius-rod, and a lever pivoted to the frame and having its opposite ends operatively connected with the said shafts and with the said crosshead and operating to slide the said rollers longitudinally.

2. In a grinding'machi'ne, the combination, with a pair of sharpening rollers, of a rock-shaft arranged above and between the said rollers and provided with means for oscillating it, a bar pivoted to one end of the roclcshaft and provided with means for adjusting it on its pivot, a vertically adjustable block carried by the said bar, and a clampfor a blade pivoted to the said pimvided with springs which norlzohl o, in a central position.

yrimiin machine, the combination, was, air (2% sharpenin rollers, of a rmikslmfi ranged above and between the said reliefs and provided with means for 0scillating it, a bar pivoted to one end of the rrxclrshait an arm projecting from the rockshaft and arranged at one side of the said ting screw between the said arm an, a vertically adjustable block by the said 1): blade pivoted to the said block 7. dried witl springs which normally in a central position. 1% grinding machine, the combinat on, V'Lili a pair of sharpening rollers, of a bar, and a clamping de-.

rock-shaft arranged above and between the said rollers and provided with means for oscillating it, a bar pivoted to one end of the rock-shaft and provided with means for adjusting it on its pivot, a vertically adjustable block carried by the said arm and provided with guides, a screw for sliding the said block vertically, and a clamping device for a blade provided with a horizontal pivot which connects it to the lower part of the said block and having springs which normally hold it in a central position.

In testimony whereof I aflix my signature, in presence of two witnesses.

ENOCH GOOLNIK. Witnesses:

A. W. WINSALL, R. TURNER.

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