US1111316A - Razor-sharpening machine. - Google Patents

Description

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* Patented Sept. 22, 1914.

L. J. ODELL.

RAZOR SHARPENING MACHINE. APPLICATION P'ILED Ines, 1913.

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L. J. ODELL.

RAZOR SHARPENING MACHINE.

APPLICATION FILED FEB. 3, 1913.

1 1 1 1,31 Patented Sept. 22, 1914.

2 SHEETSSHEET 2.

,Ildllllll'ill UNITED STATES PATENT OFFICE.

LEVI J. ODELL, DE LOS ANGELES, CALIFORNIA.

nszon-snnnrnnme MACHINE.

Specification of Letters Patent.

Application filed February 3, 191.8. Serial No. 745,764.

To all whom. it may concern Be it known that. I, LEVI J. OonLL, a citizen of the United States, residing at Los Angelesthe county of Los Angeles and State of California, have invented, new andnscful. Improvements in Razor-Sharpening Machines, of which the following is a specification.

, This invention relates to improvements in and to alternateiy bring the blades in contact with a pair of revolving stropping rolls, and reciprocate the blades in relation to the abrading periphery of the rolls.

It is a further object. to provide a frame.

for the battery of blade holders which is oscillated and reoiprocated automatically by means of the same cam.

In the drawings Figure 1 is a lan view of the machine, a portion of one o the rolls being broken away, bar of the frame, to clearly shown the position of the blade holders in relation to the rolls. Fig. '2 is a front elevation of the maconnecting rod. Fig. 3 is chine, a portionvof the cam drive shaft being broken a'way to clearly show the adjustable an end view ofthe upper part of the table, together with the abrading roller and the blade holder carrying frame, a portion of the d rive pulley on this endbeing broken away to clearly show i the pivotal means for the blade carrying frame, Fig. 1 is a section on the line 44 of Fig. 2, viewed in th'e'direction indicated by the arrows.

In the drawings, the component parts are indicated by numerals, 6 being the top of the'table, supported by means of legs 7, the driving mechanism being located preferably below the table and no-tshown in the drawings. The frame work sup. orted on th table being preferably castf-med b side and top pieces, the sides or ends 8 and S) consisting of L shaped'pieces provided. with a horizontal portion which-rests upon the top of the table and is secured to lugs 10, prefer ably formed integrally with the table top, by means of suitable fastenings, as the screws 11. the two lugs being placed at a proper distance to accommodate thecnd pieces WlllCl] are provided with a plurality together with the top of bearings. Two of these bearings 12 and j 14: in end piece 8 are placed vertically one iabove the other in the vertical limb of the piece, the other bearing 15 being located in an extension of the horizontal portion and slightly below the horizontal plane of the bearing 14. The opposite end piece 9 is provided with bearings in .a line with these latter and designated 16, 17 and 18 respectively. A top bar 20 joins the tops of the end pieces toform a complete frame for the I abrading rolls, the top piece 20 being preferably of such width as to provide a certain arr-lipunt of protection or shield to the upper Mounted in the bearings 12 and 16 a shaft 21 on which is securely mounted the .roll 22, provided with an abrading surface '23 of suitable material, usually and preferably of leather, the end of the shaft adjo-- cent bearing 16 having secured thereon thepulley 24. 4 z Revolubly mounted in the bearings 14 and 17 is the shaft 25, on which is secured -the roll 26 with a suitable abrading surface 27, this shaft being extended beyond the bearing 14 and has secured thereon the pulley wheel 28. Suitable belts, not shown, are connected to these pulleys from a main drive shaft below the table, to drive them in the direction indicated by the arrows in Figs. 3 and 41, an interval being interposed between the adjacent portions of the abrading peripheries to provide for the contact of the blades therewith.

Mounted in the bearings 15 and 18 and adapted to rotate therein, is the shaft 30, the end of this shaft being preferably carried beyond the bearing 18 and provided with a pulleyuwheel 31, a suitable belt being connected with this pulley to drive the shaft in a direction opposite to that of the lower abrading roll, as illustrated by the arrow, and at the proper speed from the main drive shaft below the table top.

On the shaft 30 and 18 is mounted the rain wheel which consists, preferably of a cylindrical sleeve provided with the cam flanges 34;, which extend outwardly and are so formed as to complete a continuous worm channel, with'two flattened portions, in which a plurality of cam rollers engage and are positively operated, "there being just sutlicient play to permit of Extending from the end pieces 1 nwurdly or adjacent the bearing toward the bearings of the cam-shaft, are the lugs 85 and 36, formed similarly on each end shown, being formed 'piece and in the same plane, a vertical bore being carried through theseextensions in which is secured the shaft'37.

v Embracing the shaft and being pivotally mounted thereon, are the brackets 38, the ends of the brackets engaging withthe shaft being preferably a yoke having the bearing extensions which engage-with the innerfaces of the extensions 35 and 36 so as to provide support therefor and are pivotally mounted on this shaft.- These brackets are of with cient length to extend over and ,above the vertical plane of the cam shaftand are'provided with bearings 39 in this plane, which are pivotally mounted by means of the trunnions40 in bearings 41 formed on theoppositely disposed upper and lower sides of the ring 42 formed in this front end of the bracket. Mounted in the bearings 39 are the trunnion's 43 formed on the oppositely disposed ends of the castingb M, forming the support vertical sides 48,;which are notched to receive the trunnions of the blade holders which, as shown are of similar construction to those disclosed in my United States Patent No. 1,051,817, for razor sharpening machines, dated January 28, 1913. The supporting frames, however, shown, are provided with the guide bars 49 placed on either side of the front of said brackets, so that the shank 50 of the blade holder is' positively guided in a-vertical direction and the trunnions 51 are relieved of considerable strain incident to the reciprocation of the blade holder frame and the blade in relation to the abrading rolls.

The studs 46 previously referred to, act as sockets, within which are secured the threaded ends of the screw clamp '52, by which the yoke ends of the spring or resilient blades 53, secured to the shank of the blade-holder 50, are locked to hold the blade holder in operative position on the frame.

On the lower face of the blade holder frame is formed the stud 54 which is provided with the stub shaft on which is mounted the roller 55, this roller being so disposed that it engages in the worm channel formed by the flanges 34, the movement being such that a complete revolution of the as short channels with cam worm reciprocates the blade holder and the blades in aplane, parallel to the plane carried through the axes of the abrading rolls a distance slightly greater than the space between adjacent blade jaws, and the blade held therebetween so that the en: tire periphery of the abrading'roll is en-. gaged by the blade and the wearing of channels in the surfaces is eliminated.

'To provide the oscillating movement, two

lugs 56 and '57 are formed also on the lower face of the blade holder frame, and provided with a bore therethroughparallel with I the upper face forming the floor in which is pivotally vided with a trunnion 60,- this trunnion'b e ing engaged by the arms 61 of the yoke 62.

mounted a shaft 58 formed asan extension of the shank 59, which-55pm The lower end of the yoke is provided J r with a threaded bore in which is inserted the upper portion 63 of the reversely threaded screw 64, the" lower end of this screw bein'g carried through -a threaded bore in the the yoke 66 by-means of the trunnion 67. 'Thearms of the yoke66fembrace and are ,pivotedbymeans of the-pin 68 to a lower 1 arm 69 of the bell crank lever,- which is provided with a vertically disposed arm 70, the upper end of the arm being provided with a short shaft'with its axis in the same plane as the horizontal axial plane of the cam shaft on which is mounted the roller 71, which roller is preferably; of the same diameter as the roller 55 andlengages inthe worm channel formed by the-cam flanges 34, a revolution of the worm reciprocating the arm 70 of'the bell crank, which movement is transmitted through the adjustable connections described and oscillates the vblade holder frame to press the bladegalternately against the upper and the lowen abradin rolls.-

The operation of the device Wlll be readily understood by" the above description, suitable motive power being applied by belts, as previously described, to the various pulleys thereby revolving the shafts in. the directions indicated. The rotation of the shaft 30 and the cam 32 operates to cause the latter to act to e'fiect alternate vertical rocking and longitudinal reciprocal'movement of the blade-carrying frame; the frame be- ,extensibn'r'65, which is pivotally mounted in j ing first rocked vertically to move the blade or blades carried thereby into contact with one-of the rolls 22 or 26. The moment the blade contacts the roll the frame will be given a longitudinal reciprocal movement V by the cam 22 to move the blade substantially parallel with the surfaceof the abrading roll a distance approximating the width of the space between adjacent blades so that the wear of the abrading surfaceswill be equalized throughout said surfaces by the movement of the blades over the entire periphery of the rolls, thus preventing the for- I oate longitudinally substantially parallel fiii-ation of channels thereon and insuring an even grindingof the blades.

What-I claim is:

a pair of spaced stropping rolls, a frame mounted to rock vertically and to reciprowith said rolls, means for supporting a plurality of blades on said frame, a cam, and separately operated means whereby the rotation of said cam will operate alternate rocking and reciprocatingfm'ovev ment of said frame. A;

2. In a razor stropping machine a cylindrical stropping rolls, a frame extending parallel with said rolls, and pivoted to rock vertically, a swinging support for the pivotal bearings of said frame by which said frame can be shifted longitudinally, a plurality of blade-carriers on said frame adapted to position a seriesgii' blades intermediate said rolls, acam shaft, a single grooved cam on said shaft, and separately I actuated means whereby the rotation of said cam will operate to effect alternate rocking and reciprocating movement 0t said frame in both directions.-

3. Ina razor stropping machine a pair ofrol-ls, a blade carrying cylindrical stropping frame extending parallel with said rolls, a pair of horizontally swinging arms adjacent the ends of said rolls on which said reciprocate longitudinally.

frame is pivotally mounted to melt vertically, a cam shaft, a single cam on said shaft, and separately actuated means en T 1." In a razor blade sharpening machine,

gagedby-s aid cam, whereby the frame'will. be caused to alternately rock vertically an ln a'razor stropping machine the combinatidii with a pair of spaced cylindrical stropping rolls, a frame'carrying a plurality of blade holders adapted to'positionthe blades intermediate said stropping rolls, trunnions on the ends of said frame, bear ings 'in which said trunnions are turnably mounted, a pair of arms pivoted to swing horizontally on which said bearings are piv oted, a single peripherally grooved cam, and connections whereby the rotation of said cam will operate to rock said frame vertically to move the blades into alternate contact withsaid rolls, and whereby the frame will be moved longitudinally -on. said arms to reciprocate the blades in both directions when in contact with said rolls and longitudinally thereof. 2 v

- In witness that I claim the foregoing I have hereunto subscribed my name this 24th day of. January, 1918.

LEVI J. onnLL.

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