US2327717A - Skate sharpener - Google Patents

Description

Aug, 24, 1943 s. R. JOHNSON SKATE SHARPENER Filed Dec. 8, 1941 G ddy/Faxed Jbm'm Patented An. 24, 1943 UNITED OF Fl-CE f j "":'-2,327,7l'7

' EEK-ATE SHABPENER; I Gustav Etnsseil ileh nson, "EastTroVidence, I. I 'npp'licationifleeenqber s, lfl ll fi'ertalrNo. $422,120 ins ci'.i'zs-'-se) This invention relates "to hand manipulated skate sharpeners whicbmay be carr-ied in -.the

=Obj ec-ts I of i the invention 1 include the prcvision of a portable hand manipulatedskate sharpener which is-sma-ll enough to be'carried in' the-pocket and "which =is simple: in -cnstruction and inexpensive to "manufacture while bein easy to cperate and 'emcient in itsintended function.

Further objects of the inventionincl-ude 1 provision of a two-part frame which is attached --to a wooden handle in --suc-h"a :nianner'as to present a cutter mounted in the frame, a said cutter being cylindrical and rotatable for the presenta- "tion of various working surfaces; the provision 'of-an-easily' grasped wo-odenhandle-having a twopart frame attached thereto in a recess thereof, cne of'theparts of the frame providing a bearing member for receptiono i the above mentioned cylindrical cutter and the'otlierpart providing a skate runner guide for approach of thee-irate ta-the --cutter and at the same time--providing means to firmly secure the first named frame part to t he wooden handle. I f l Otherobjects and advantages of the invention :willappearhereinaiter.

Reference is to he had to the accompan ying rawing inwhi-ch Y a :Fig. 1 is a plan view er a device -embodying .a .sfltat sharpener according to my invention;

:Fig. 2:is aside viewof theskate-sharpener; r Fig. 3 is a View similar to Fig. 2 hut showing --certainofthe partsiinisection; 1.

Fig.4 is ascetic-n online ifi i or Big. :3; Fig. 5 is a view partly in section, showingfhow the frame is assembled with respect to the handle;

Fig. 6 is a plan view of the cutter-bearing member; and y Fig. 7 is a view in side elevation of the cutter.

Referring to the drawing in detail there is shown a boat-shaped rectangular handle member ID having opposite side edges thereof grooved as at l2 to provide a finger grip. The top surface of the handle is longitudinally recessed as at M to provide for recessed reception of the cutter frame, so that the latter will be firmly held to the handle but will not extend too far above the same, and the cutter will be positioned conveniently for the sharpening action.

The cutter is shown in detail in Figs. 3 and and comprises a cylindrical cutter element It which may be made of tool steel or another appropriate material. The cutter is circumferentially milled to present a series of sharp circular periifihelial cutting edges l ilsand the cutte r isalso formed with air of :raxiahy taligned endtibear- 'ing :elements 2 0 by which it ls a'dapted to be mounted for rotary movement aboutits axis to presentia plurality ref cutting surfaces to the skate :whereby the \cut'ting edges 3B8 will not be worn 'away alongalsinglezsidea of thecutter. The

cutting :edges 'are triangular .in crossnection and 1 :all face thesame: direction. ie

-.out 1 in fiat form, is tprovided with: a apai-r :of :par-

.A (plate 22, whichfmay be .originallystamped allel spaced transverse slots 24 having a purpose 'tobe described. The ends 2225 ofplate zlarebent into right tangled relationship with the .p'late 2 on -th6lS3HlEnSid8 thereofias is doest seenin Fig. 3.

The end pieces flt are providedwithaperturesml which are .in ithe form or .a partial circle but which open :into the ends of the pieces with thercenter; of the & circles located within: said' end pieces, :so that :the members fit! of :the cutter 1 6 smay ubecinsezrtcd axially into apertures '23, but

a may mots be removed "therefrom :by rtransverse :forcesactingon theicultter {once it iseated in theiendipieces "id ot themlate. Plate 22 isiof "a width to just be receivedin groove M aseshown in Figs. 1, 4, and 5 and therefore anypcssible lateral playofpl-ate fi is obviated.

(A secondplate fiiL'which may also he'stamped :ont;in iflat form originally, is formed witha :cen-

tral longitudinal *slotzBi which :acts .as :a skate runner :guide when th device is .iused as ias'kate sharpener, slot 32 (running lengthwise or. the cut- -ter l fiqonhandle it, see Fig. 1. :Slot 132 is positionedfto :occupy thelcentral position. .Of '.p1ttei3fi, and at each .end m? 'the .slot it is enlarged dcy means airing-like elements 34 to form rround openings 35 which are larger in diameter than the cutter. Plate 30 terminates in end elements 38 formed as solid narrow continuations of ringlike members 34.

Plate 30 is bent at two points slightly spaced inwardly from the ends of slot 32 so that it present a U-shaped member wherein slot 32 extends across the closed end of the U and slightly into the legs thereof which are formed by members 34 and 38. Leg members 33 extend through slots 24 in plate 22 traversin the handle from the bottom of groove Hi to th bottom of the handle. at which point they are bent inwardly towards each other to form lockin fingers 40 which may be recessed into the handle as shown in Fig. 3 to completely lock all the parts together.

In assembling the device, plate 30 is bent to its U-shape except that fingers 4B are not bent inwards but still remain aligned with legs 38.

Openings 36 being considerably larger in diameter than the cutter, the latter is placed through the openings in the position shown in Fig. 3. Plate 22 is then bent into U-shape as shownin Fig. 3, and end pieces 26 may be sufiiciently resilient to close over the end bearing pieces 20 of the cutter to hold the same in locked position against movement in every direction except that of rotation. Legs 38 of plate 30 will have been thrust through slots 24 in plate 22 in order to bring end pieces 26 of plate 22 into alignment with the cutter so as to position the end pieces 20 of the latter within the openings 28. The device is now assembled except for the attachment to handle l and this is done by setting the sharpener into groove 14 as shown in Fig. 3 and causing the legs 38 of plate 30, to penetrate the handle to the position shown in Fig. 5, whereupon fingers 30 are bent over and may be recessed in the handle to lock the two-part frame and the cutter thereto. Plate 22 may also be recessed into the bottom of groove 14 to additionally guard against endwise movement of the sharpener.

Itwill be seen from Fig. 5 that plate 22 is prevented from lateral movement in groove 14 and is held to the handle by reason of the ringlike portions 34 which securely hold the plate to the handle. Portions 34 will be seen to engage the corner formed by groove i4 so as to bear thereagainst and to additionally rigidify the device.

The skate blade S may be inserted in slot 32 to be guided thereby while handle I0 is manually grasped and reciprocated along the blade so that cutter edges 88 will sharpen the skate by actually removing material from its edge in one direction of movement, and the cylindrical shape of the cutter will provide for a skating edge similar to the hollow ground edge commonly desired.

Itis contemplated that an abrasive stone could be used in place of cutter i6 but this type of stone ordinarily will be found to become grooved after service so asto lose the desired hollow ground profile of the skate runner.

Having thus described my invention and the advantages thereof, I do not wish to be limited to the details herein disclosed, otherwise than as set forth in the claims, but what I claim is:

1. In a device of the class described, a handle, a generally cylindrical sharpening element, a U-shaped frame member, hearings in the legs of said member for rotatably mounting said element, a second U-shaped frame member extending oppositely to the first named member and embodying a blade guide, the legs of said second member extending through a portionof dle" with the legs of the frame member extending outwardly of said surface, openings in said legs, a cutter mounted in said openings, a second U-shaped frame member having its legs ex.-

tending through a portion of said first named member and into the handle, said members be ing positioned so that their legs extend oppositely, enlarged portions on said second member abutting said first named member to act as fastening means to secure the frames to the handle, and a blade guiding slot in said second member.

3. A blade sharpener comprising a cylindrical sharpening element, a U-shaped frame member having bearings in its legs to rotatably support said element, the latter having a part of its periphery extending outwardly beyond the ends of the legs, a second U-shaped frame member having a blade guiding slot in its closed end, a handle, means securing said first named member with its closed end fiat against the handle, said means comprising legs on the second member and enlarged portions on'said legs,

said members having their legs extending oppositely to each other, and the slotted closed end of thesecond member being located at the s ide of the sharpening element opposite the handle.

4. A skate runner sharpener comprising an elongated handle, a U-shaped frame member having its closed end located flatly on said handle with its legs extending away from the handle, and substantially circular apertures in said legs, a second U-shaped frame member having its closed end spaced from said handle and legs extending through the closed end of the first named frame member and penetrating the handle, a slot in said closed end of the second :member, and a sharpening tool journalled in said apertures and located between and parallel to the closed ends of both frame members.

5. A blade sharpener comprising an elongated handle, a groove in a surface of said handle extending longitudinally thereof, a plate in said groove, upturned apertured ends on said plate forming bearings, a freely rotatable sharpening tool mounted in said bearings, and means securing said plate to said handle and including a blade guide, said means including a member surrounding said tool to form a head to hold the plate to the handle.

GUSTAV RUSSELL JOHNSON.

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