US1070328A - Sharpening attachment for wood-pulp grinders. - Google Patents

Description

narra STAS .arr einen.

ALLEN CURTIS. OF GLENS FAJLS, NEW YORK, ASSIGNOR TO IN'J.IER\TA."LIONAL .PAPER COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

SHARPENING ATTACHMENT FOR WOOD-PULP GRINDERS.

Application led August 31, 1908, Serial No. 451,068. Renewed July 3, 1913.

To u/l /r/zon'z *it mf/ i/ concern.'

`Bc it known that l, ,-XLLEN CURTIS, a citizen of the hiited States, residing a'tand whose posi-ollicc address is Glens Falls, lVarren county` New York, have invented certain new and useful lmproven'ients in ASharpening Attachments for Vood-Pulp Grinders, and l do hereby declare the following to be a full. clear` and exact description of the invention, such as will enable others skilled in the art to which it apperlains to make and use the same.

My invention relates to certain new and useful improvements in sharpening attachments for wood pulp grinders, and is designed to put at the disposition of the operator means for sharpening the grindstone more expeditimislf'and with greater uniformity and certainty` than has heretofore been customary in the art.

In the accompanying drawing, Figure l represents an cud view of the main portions of a wood pulp grinder and shows the rela.- tion of the attachment for sharpening the grind-stone in accordance with my invention; Fig. 9. represents, on a larger scale, a front elevation of the attachment, partly in section; Fig. il represents atop plan view of the attachment and shows the relation of the barring or sharpening wheel to the grind-stone; Fig. 4 represents a sectional view taken on a plane indicated by the line 4, l of Fig. 2.

lirnilar letters of reference indicate simi- 351:11' parts throughout the several Views.

Referring to the drawing, A indicates the main casing of a Wood pulp grinder, provided with the usual pockets and hydraulic cylindersfor presenting the Wood to the grind-stone, as is well understood by those skilled in the art. The attachment, constituting my invention, is secured in any suitable manner to the'bed-plate or standards of the grinder, as, for instance, by means of angle irons a bolted to the uprights b, which angle irons support the head portions c of the hydraulic cylinder d and the guide-way c of the sliding tool head f which i: mounted upon a rod g attached by a cross head li to .the piston rod 'i of the hydraulic cylinder. The hydraulic cylinder, as is usual.l is provided with the customary ports at its opposite ends, for the inlet and exi t of the actuating fluid; whereby, through the intermediacy of suitable cocks or valves Specification of-Letters Patent.

latented Aug. 12,1912.,

Serial No. 777,338.

(not shown), the piston n of the hydraulic cylinder i may be carried either to the r'ght o r to the left, at the will of the operator. ln so doing, the piston rod 2'., the cross rod fr. and the tool holder rod g partake of the motion of the piston, and therefore carry the burring or sharpening wheel la across the face or peripheryof the rotating grindstone B.

The burring or sharpening wheel Ic, mounted in a suitable yoke, as Z, so as to revolve freely, is adapted to be moved toward or from the grind-stone B, by means of a crank handle m, as is usual in devices of this general character. y

The operation of the invention will be apparent: The attachment, secured in place as shown and described, is normally at such adjustment that the burring wheel is out of the path of movement of the revolving grind-stone B and the piston n. is at the innermost limit of itsinovement, in which position it is maintained, thereby withdrawing the rods 'i and r/'froin project-ing materially beyond the bed-plate of the machine. In this adjustment, therefore, the attachment takes up but little room and its main parts are correspondingl protected against accidental breakage. l en it is desired to sharpen4 the grind-stone, the barring or sharpening wheel 7.2 is advanced toward the stone' by tneans lof the crank handle m mounted upon the usual feed screw engaging a screw-threaded.nut or the like on the crossslide to which the yoke Z in which the burring wheel la is mounted, is attached. By an appropriate manipulation of' the hydraulic cocker cocks governing ,the admission and exit of the actuating fluid with respect to the hydraulic cylinder and its piston. the longitudinal slide f carries the burring wheel progressively across the face ofL the revolving grind-stone, and with a regnlarity and speed commensurate with the action of the hydraulic fluid upon the piston. ln practice. it is found feasible to carry the hurring wheel across the face of the grindstone within a very few seconds, the attention of but a single operator being required to insure its uniform and eiiicient action. By reversing the position oli the eockor cocks. either manually or automatically` the hui-ring Wheel. after moving ventirely across the face of the grind-stone, is carriedl back in tlieopposile direction, and these .reciproca- 'ice tions are repeated until the grinStone is sliairpenedt-o the desired degree. find, in practice? that the action of the hurring 'wheel upon the 'grind-stone, under the uniform .i will and push o the rod g connected to the quickly moving hydraulic piston rofl fi, is of auch' u character that in spite of the fact that the usuel rind-stone 'toi' wood pulp grindJ e has; Setter and harder plaveee in its, pelo; i iphery, there is practically no tendency for the hui-ring Wheel to obrado the softer spots to e greater depth than the harder spots. lliie i@ et greet importance from a practical e idpoirit5 inasmuch :is the slow moving; mrring wheel in the machines heretofore employed have always required two men to operate them and have had a more or lees util detailing; action upon the grind- ,A gjeripliery, to such au extent that in TFO. ni #t ce .eS'it has heen practically indispensable to ern-ploy fitter the action of the bur ring 'wheeh u. supplemental hand operated fue' mechanism, in order to remove the irregularities referred to. Nothing of this liiinil required or is desirable for grind.- etoucu which have been sharpenedV by the emx nient of the iipi'mretus herein flescri'oecl. 'thus tiescrihetlmj ilwention,whet l' omini ist Lot/0,32@

l. l Wood pulp griuilei' provided with. :i griufl-Stone-shaipener co Aeisting4 of :i hurring or sharpening u'llcel, having' menus for moving it into Contact with the grimLStone surface, :i reciprocating slide for sont wheel. a hydraulic piston and cylinrler` and connections between the tool :slide und the pistou for reciprocating the bui'liug wheel haelt `and forth across the tace of the Igrind-etoile;

substantially as described.

i7.. A wood pulp grinder provided with u. grin(letoneesharpener consisting of :i burring or sharpening Wheel, having ineens for moving it into Contact with the grind-Stone surface, a reciprocating slide i''or said wheel, o' hydraulic cylinder located immediately helow the slide :intl having a guide-Way upon which the slide travels, a. piston and pistoni'otl 'for Suid cylinder., un actuating roti` for the Slide, und a cross-hei@ for connecting 'the piston rod and Slide rofl; substantially is (lescribed.

ln testimony whereof l my signature in presence of two Witnesses.

lllfitnefsseo

Images