US1144467A - Machine for sharpening razor and other blades. - Google Patents

Description

A. 1, FIX. MACHINE FOR SHARFENING RAZQH AND OTHER BLADES.

APPLICATION FILED` MAYZO, |912. lglgye, atented une 29, MM5

2 SHEETS-SHEET i.

A. I. FIX. MACHINE FOR SHARPEIIIIIIG RAZOR AND OTHER BLADES.

APPLICATION FILED IIIAY 20, I9IZ.

Patented June 29, 1915.

2 SHEETS-SHEET 2.

tegralwith or otherwise secured to the two jaws of the holder. One or both of the jaws of the holder lare preferably provided with suitable hooks or extensions d5 formed on or located adjacent to the engaging faces which` are adapted to engage in recesses or holes in the blades to securely hold the same and prevent them from being drawn out of the holder and between the rolls. These hooks may be formed integral with the jaws of the holder, or, as shown in the drawings, they may be formedfon aholding lplateol which may be removably secured to the 1nner face of one of'the jaws in any suitable manner, for instance by screws df. Bv providing a holding plate for each of the dif- A ltegral with the holders and a different holder providedv for each of the different l eov kinds ofblades.

The'holder extends longitudinally of the machine and issupported above the valley .or groove between the rolls in such a manv ner that it can be adjusted toward and from the rolls. For thisv purpose the holder is A 'integral with the end ,walls of the casing;l

provided at its opposite ends with extensions or arms f, Which areadapted to resi? in suitable supportsv F,'secured to or formed y These supports have vertical guide slots f which are openl at their upper ends and which aregadapted to 'receive the arms f of `the holdei` and in which these arms' can be adjusted to raise or lower.the holder relatively. to the .sharpening rolls. j

Any suitable meansmay be provided for adjusting theholde'rrelatively to the rolls to adapt the same to operate on blades of diierent widths. In the construction shown for 'this purpose, adjustingV levers -G are provided which are pivoted at g to the supports F, 'These' levers 'are movable ver tically' relatively to the supports .and vpreferably mo've slots g Iin the supports. F. The levers extend across the lower Vportion 'seA ' '.of the slots f', so that the arms ffotE the: holders rest on the levers." The free epideof the levers are lprovided with set screws g2 .by means of which the levers can be raisedon lowered as required and'suitable lock nuts g3 maybe.4 provided -forholdin'g' theset screws in the-desiredposit'iom 'By' 'turn-ing the set screwsf-thefholder may be mused by thomas1-.ef themadag which ,tre to "be sharpened f :l'njrd'er to"cause-.an-evenweanof the vtween the two sharpeningrolls,

sharpening rolls throughout theii` length Aand also to insure an equal'sharpening of all portions of the blades, the-holder with the blades carried thereby is moved back and forth lengthwise of the rolls during the operation ofthe machine. Any suitable mechanism canbe employed for this purpose, that shown in the drawings compris.

ing la lever H which is suitably pivoted at .la on a bracket it', suitabl secured to the frame of themachine.

arm f of the holder. A wormh2 is secured to one ofthe 'shaftsb' of the machine and engages witha worm gear ha which is suit-4 ablyV journaled on the-bracket It and which has a pin It* secured inthe sidefthereoztly he upper end 'of 'this lever has a loose connection-'with the which engagHs in a slot in the lower arm of the lever operated the movement of the gear k3 causes the lever to swing on its pivot and thus reciprocate the holder and the blades'car ried thereby.

. Whenthe machine is being The blades used in safety razors of dif-r ferent kinds vary considerably in size and shape, and it is therefore desirableto pro-f vide means for` readily determining theV height above the rolls to which the holder should be adjusted for properly positioning the particular blades which are rto be sharpened. -A gage I is preferablyprovided for this purpose which comprises a block or body portion z' which has two facesl i .which 'have substantially the same curvature as the. periphery vof the sharpen-ing rolls. `The-gage has a central'slot 2 into which a blade can be inserted, and is provided with means for holding the blade the slot,

such as a cam i", which can be pressed into-l y y[05 engagement with the'y blade by a thumb screw it, the end of which engages with the cam'. Afterthe blade has been placed in the gage with its edgeA projecting slightlyY beyond'the lower edge thereof and secured in place therein, the upper portion .-of the blade, whichlwill project above the gage; may be secured to the holder.. Two of thesegages are preferably used, one toV each'endv 3 of the holder. 'The holder isthen placed in position on,the machine so -that the gages at their opposite ends rest in thegroove bejsting levers G are then settosupport the holder in the position-in which itris held.

by the gages. The holder can then beremoved from the machine and the blades with the gagesv attached thereto can then be removed from, the "holder and replaced by "blades/to be sharpened. I vThe gages can readilyv vbe removed from thev blades loosening'the screw z" and the cam a opg- `erate'd thereby. Springs 5 ,secured on vthe upper faces of the gages press against the 4 holdervto take up any lost motionbet'wee the gages 'and the holder land insure th,

' naled in the gage, engages.

proper positioning of the holder relatively to the sharpening rolls.

Instead of clamping some of the blades to be sharpened in the gages tofadaptv the gagesto be used for properly positioning the holders -relatively to the sharpening rolls, gage plates K can be employed which are adapted to be inserted into the slot in of which corresponds to a certa-in kind or make' of blade andthe plate is so adjusted in the gage that the proper graduation for the kind of `blade to be sharpened is opposite the upper edge of the gage.v In order is provided at one side with a rack In', with whichp'a worm k2 secured to a pin 7a3 jour- By turning the pin, the plate can be raised or lowered in the gage.

or suitablemeans for securing them in the holders. l A

lVhile the machine described is adapted more particularly to operate upon a plurality of safety razor blades of any suitable kind, it will be understood that the machine is not limited to this use but can also beI and released therefrom and Vare securely held therein during the sharpening operation. The machine is therefore capable of sharpening a large number of blades in a short time, since very little time is required to change the'blades. The machine can be easily adapted to operate ,on the various standard kinds of safety razor'blades now manufactured and the holder could easily be constructed to hold other cutting edges or knives ifdesired. The reciprocatory motion of the holder facilitates the sharpening of the bladesand greatly lengthens the life of the rolls, since it insures an even' wear sriV over all parts of the rolls and prevents the formation of grooves or ruts around the periphery of the rolls. The gages are also easily operated and enablethe machine t6 be readily adjusted vto operate on" diilerent kinds of blades.4 i J I claim as my invention:

l, `In,a machine for sharpening blades, .the combination of a sharpening yroll jour- The gage plates may be pro-- vided at their upper ends with any usual naled on the machine, a holder for a blade to be sharpened, said holder having projecting supporting ends, parallel upright guide parts on said machine between which the holder can be lowered to bring the blades into operative relation to said roll, levers eX- tending across said guide parts and upon which the ends of said holders are adapted to rest, and means for adjusting the levers vertically. y

Q ,In a machine for sharpening blades, the combination of a sharpening roll journaled on the machine, a holder for a blade jecting supporting ends, parallel upright guide parts on said machine between which the holder can be lowered to bring `tlie blades into operative relation to said roll,

y means for reciprocating said holder, and to facilitate this adjustment, the gage plate cooperating parts-on said means and said holder which are adapted to be connected' when the holder is lowered into ,operative relation between said guide parts` 3. In a machine for sharpening blades.

the combination of a sharpening roll joui"- naled on the machine, a holder for a blade to be sharpened, said holder having projecting supporting ends, parallel upright guide parts on said machine between which the holder can be lowered to bring the' blades into. operative relation to said roll, a re-v c iprocatory member actuated by the rotation of said roll, and a part on said holder adapted to be moved into operative engagei ment with said reciprocatory member when said'holder .is lowered between said guide parts.

4. ln a machine for sharpening razor blades, the combination .of a casing, a pair of parallel sharpening rolls journaledvin said casing, a holder for a blade to be sharpened, said holder having projecting supporting ends, parallel upright guide parts on said casing between which said holder can be lowered to bring the blades linto operative relation to said rolls, adjusting le* vers pivoted at one end on said guide parts and adapted to support said holder, and means for adjusting the fre'e ends of said levers vertically for limiting the movement of the holder relativelyto said rolls.

5. In a machine for sharpening razor and other blades, and having a frame and a pair of parallel sharpening rolls, of -a holder for said blades which extends longitudinally of said rolls above the groove between them, supporting devices for said holder, said supporting devices having vertical slots' in which the ends of said holder are adapted to rest, levers extending across said slots and upon which the ends of said holder are adaptedto rest, and means for adjusting the positions of said levers vertically for adjusting the position of said holder, substantially as set forth.v

6. In a machine for sharpening blades,y adapted to be connected when the holder is the combination of a sharpening roll jourlowered into operative relation between saidv naled on they machine, a holder for a blade guide parts, and means for adjusting said toghe sharpened, said holder having projectholder relatively-to said roll.'

5 ing supporting ends, parallel upright guide Witness my hand, this 13th day of May, 15 parts on said machine between which the 1912. I l holder can be lowered to bring the/blades u ARTHUR J.14`7`IX.-fv intooperative relation to said roll, means for Witnesses: reciprocating said holder, coperating parts F. E. PRoCHNoW,

l y1'0 on said means and said holder which are A; L. MGGEE.

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