US1406370A - Heel-covering trimming apparatus - Google Patents

Description

P. R. GLASS.

Patented Feb.14, 1922.

2 SHEETS-SHEET I.

P. R. GLASS.

HEEL COVERING TRIMMING APPARATUS.

APPLICATION mu) not. 11. 1919.

1,406,370, Patented Feb. 14, 1922.

2 SHEETS-SHEET 2.

//v VE/V 727, 7;

UNITED' STATES PATENT orr cs. I

PERLE Y B. 'GLASS, OF BROOKLINE, MASSACHUSETTS, ASSIGNOR TO UNITED SHOE MACHINERY CQROBATIO1L OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

HEEL-COVERING TBIMMING APPARATUS.

Original appIication filed September citizen of the United States, residing in Brookline, in the county, of Norfolk and State of Massachusetts, have invented certain Improvements in Heel-Covering Trimming Apparatus, of which the following description, in connection with the accompanying drawings, is a specification, like reference characters on the drawings indicating like parts in the several figures.

This invention relates to apparatus for covering the heels of shoes with flexible material, such as leather or fabric, and more especially to apparatus adapted to trim such covering after it has been applied to heels which have been secured to shoes. This application is a, division of that filed by me September 9, 1918, hearing Serial Number 253,255, and entitled Heel covering apparatus. i i As far as I am aware, such heel covering operations previous to my invention have been performed either wholly by a series of relatively slow manual operations or with apparatus requiring special attachments to the covering. The above referred to application discloses apparatus by means of which heels in place upon shoes may be rapidly and effectively covered with material in the form ordinarily provided, and with little manual effort, and one object of the invention of the present application is to provide means which without sacrifice of their utility will be convenientlyutilizable.in connection with so covering attached heels to trim excess material from the covering to leave a uniform projection beyond the edge of the heel.

Features of the invention consist in the provision of a guard for contact with the heel to'which the covering is to be applied, the covering passing between the knife and the guard, and'a gage co-operating with the rand crease of the shoe operated on to determine the width to which the edge of the covering is to be trimmed, and there may desirably be provided means for adjusting the relative positions of the'knife and either the guard or gage or both these members.

A further feature of the invention lies in the-provision of novel means, normally yield- Spccification of Letters Patent. Patented Feb, 14 1922,

9, 1918, Serial No. 253,255. Divided and this application filed 0cto-. ber 11, 1919. Serial No. 829,996.

ingly held out of operative position, for grinding the knife, and arranged to be moved by the operative into grinding position.

Other objects and features of the. inven tion will appear in connection with the following description of a preferred embodiment of the invention which I have illustrated in the drawings as an exemplification thereof.

111 the drawings Fig. 1 is a top plan view of so much of the machine as relates to the covering trimming means;

Fig. 2 is an end elevation. looking from the left in Fig. 1, with the main drive shaft shown in cross-section; and

Figs. 3 and/lare sectional detail views 011 lines 3-3 and 4- 1 of Fig. 2, respectively.

After the shoe and covering have been prepared and the covering cemented to theheel. as set forth in the above referred to application bearing Serial Number 253,255, it is necessary in order to give uniformity to trim the edge of the covering which is to enter the rand crease and this is done by the following mechanism.

Suitably journaled in bearings supported by the frame of the machine is a main drive shaft 32 rotated from a suitable source of power by a belt 34 co-operating with fast and loose pulleys 36. A belt shifter mounted upon a bracket 4:0 of the frame enables the belt to be moved from one pulley to the other to rotate the shaft as may be de sired.

At t-he end of an arm 18 extending for; wardly from the frame of the machine is a transverse extension 52 in which is journaled a horizontal shaft 54 connected for rotation to the shaft 32 by belt gearing 56. Fast upon the left hand extremity of the. shaft 54-, as viewed in Figs. 1 and 4:, is a circular knife 58 provided with a peripheral cutting edge. Carried upon the portion 52 of the arm 18 and surrounding the knife is acasing, having a body 60 closed at its outer side by a head 62. There is, however, at the lower forward portion of this casing an opening appearing at 6 1- in Fig. 2 of the drawings, through which the knife projects for co-operation with the work. T o engage the counter portion of the shoe operated on is a guard having a shank 66 secured to the cover 62 of the casing by a screw and slot connection 68 allowin its movement radially of the knife. rejecting from the shank, first outwardly in a horizontal direction and then downwardly and inwardly, an arm 70 having at its lower end beneath the knife a laterally extended guard portion 7 2 curved to conform generally to the countor portion of a shoe and against which the cutting edge of the knife operates. The form of the arm permits the excess of material which is to be trimmed away from the covering to enter between the knife and guard, while the adjustment by means of the connection 68 enables the operator to bring the guard into proper relation to the knife as the latter is worn away through sharpening.

To aid the operator in trimming to a line parallel to the rand crease, there is shown mounted on the edge ofthe casing 60 a gage arm 74f secured in place by a screw 76 passing through a transverse slot at the upper end of the arm. This arm H extends with its lower enlarged end 78 adjacent to the inner side of the knife, it being adjusted by means of the screw 7 6 so that when the gage is in the rand crease the knife will trim the heel covering to a width giving suflicient projection to properly tuck into and be retained in the crease.

To assist the operator in correctly following thecrease in trimming, I prefer to first mark its position as set forth in the above referred to application having Serial Number 253,255.

its the knife 58 becomes dull in use it may be sharpened without removal fromthe apparatus by a grinding member forming a part thereof. This grinning member is furnished. by an abrasive wheel 80 fast upon the lower end of a spindle 82, rotatable in upper and lower arms 84 carried on a slide 86 movable on the portion of the arm 18. Turning in the support at the end of the slide is a screw 87 threaded into said slide, by which the position of the grinding wheel with relation to the edge ofthe knife may be varied. Fixed upon the spindle beneath the upper supporting arm is a pulley 88 con nected by a belt 90 with a pulley 92 on the shaft 32. To control the rotation of the grinding wheel the belt passes over a tighteuer furnished by a pulley 94 mounted on a lever 96 fulcrumed upon the extension 52. The lever has upon one arm a spring latch 98 engaging a notched segment 100 secured to the extension. By this tightener the belt 90 may be placed under such tension as to rotate the spindle 82 and the grinding wheel, or the belt may be loosened so that the grind ing wheel is not driven. The lower run of the belt is preferably guided by a pulley 102 rotatably mounted on the arm 18. The

grinding wheel is held normally out of contact with the knife by a helical spring 104 surrounding the spindle and interposed between the lower bearing arm and the pulley 88. The spindle may be pressed down to bring the grinding wheel into engagement with the edge of the knife by a finger piece or head, 106, loosely mounted upon the upper extremity of the spindle and retained in place thereon by a screw 108 extending into a circumferential groove in the spindle. An anti-friction ball 110 is shown (Fig. 3) interposed between the head and spindle so that the former may be forced down by the operator without sharing in the rotation of the spindle.

Having described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. In a heel-covering apparatus, a knife rotatable in a plane normal to the surface of a' shoe presented thereto, and a guard for contact with the work and between which and the knife the heel-covering may pass.

2. In an apparatus for trimming the covering of heels, a rotatable knife, and a guard provided with a face progressively to lift the margin of the coveringto be trimmed and with which guard the knife co-operates.

In an apparatus of the class described, a rotatable knife, a guard progressively to lift the excess portion of the work and having a portion bent outward to afford clearance for said excess portion and between which and the knife the work may pass, and means constructed and arranged to permit the relation between the guard and the cutting edge of the knife to be varied.

4. In a heelcovering apparatus, a rotatable knife, a casing about the knife, and a guard mounted upon the casing and extend- .ing outwardly from and then toward the casing and adjacent to the edge of the knife.

In a heel-covering apparatus, a rotatable knife, a casing about the knife, and a guard including a slide mounted upon the casing and an arm extending outwardly from the casing and then adjacent to the edge of the knife, the outwardly extending portion of the arm giving a space for the heel covering to enter.

6. In an apparatus of the class described, a gage for cooperation with a shoe, a guard progressively to lift the work ready to be cut, and a knife between the gage and the guard operating upon a portion of the shoe.

7. In a heel-covering apparatus, a gage for contact with the covering over, i the rand crease of a shoe, and a knife operating upon the covering on the opposite sideof the gage from the shoe heel.

8. In a heel-covering apparatus, a casing, a knife rotatable therein, and a gage for cooperation withthe rand creaseof aqshoe, said gage being mounted upon the casing and extending adjacent to the periphery of the knife.

9. In trimming apparatus, a gage for co-operation with a shoe, a knifeoperating adjacent to the gage, means constructed and arranged to permit the distance between the knife and gage to be varied, and a member to lift the portion of the shoe to be trimmed away from the remainder of the shoe and progressively to present it to the knife.

10. In a heel-covering apparatus, a casing, a knife rotatable therein, a gage for cooperation with the rand crease of a shoe, and means for supporting the gage upon the easing, said supporting means being constructed and arranged to permit the gage to be adjusted transversely of the knife.

11. In a trimming apparatus, a rotatable knife, and members for contact with the work situated at opposite sides of the knife, one of said members extending outside of the cutting edge of the knife and having a portion progressively to lift the work to present it to the knife.

12. In a trimming apparatus, a rotatable knife, a guard member situated at one side of the knife and having a portion progressively to present the work to the knife, and a gage member situated at the opposite side of the knife and arranged to follow the rand crease of a shoe. I

13. In a heel-covering apparatus, a rotatable knife, a member for contact with the counter portion of a shoe co-operating with the knife, and a member for contact with the heel covering cooperating with said knife.

14. In a heel-covering apparatus, a rotatable knife, a guard member for contact with the counter portion of a shoe co-operating with the knife, and a gage member for contact with the heel covering co-operating with said knife.

15. In a heel-covering apparatus, a rotatable knife, a guard member for contact with the counter portion of a shoe situated at one side of the knife, and a gage member for contact with the heel covering over the rand crease situated at the opposite side of the knife.

16. In a heel-covering apparatus, a frame, a knife rotatable upon the frame for trimming the covering, a grinding member mounted upon the frame for co-operation with the knife, and a gage to determine the amount to be trimmed by the knife and adj ustable as the knife is ground away.

17. In a heel-covering apparatus, a frame, a knife rotatable upon the frame for trimming the covering, a member to co-operate therewith to force the covering against the knife, and a grinding member movable upon the frame for co-operation with the knife, without moving said member.

18. In a heel-covering apparatus, a frame, a knife rotatable upon the frame, a grinding member mounted upon the frame for movement into and out of grinding relation to the knife, and a member to force the heelcovering against the knife and adjustable relatively thereto as the knife is ground away.

19. In a trimming apparatus, a frame, a knife mounted for rotation in the frame, means for rotating said knife, a grinding member mounted upon said frame normally at rest, means operable at will and independently of the knife-rotating means forrotating said grinding member, and yielding means, arranged to be overcome by the operative, tending to move the grinding member axially out of engagement with the knife.

20. In a trimming apparatus, a frame, a knife mounted for rotation in the frame, means for rotating said knife, a grinder mounted upon said frame, mechanism to actuate the grinder, a lever within reach of the operator of the apparatus for stopping.

and starting said mechanism, and yielding means, arranged to be overcome by the operative, to hold the grinder out of knife grinding position.

21. In a trimming apparatus, a frame, a knife mounted on the frame for trimming the covering, a rotary grinder mounted upon said frame, yielding means arranged to be overcome by the operative to hold the grinder out of knife grinding position, a belt to rotate the grinder and av lever within reach of the operator of the apparatus to vary the tension of the belt to stop and start the rotation of the grinder.

In testimony whereof I have signed my name to this specification.

PERLEY R. GLASS.

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