US2226808A - Method of and machine for applying tape - Google Patents

Description

; 31, 19. P. H. DIXON 2 3 METHOD OF AND MACHINE FOR APPLYING TAPE Filed Feb. 9, 1939 I 4 Sheets-Sheet 1 Dec. 31, 1940. P. H. DIXON METHOD OF AND MACHINE FOR APPLYING TAPE Filed Feb. 9, 1959 4 Sheets-Sheet 2 Dec. 31,- 1940. r R DIXON 2,226,808

METHOD OF AND MACHINE FOR APPLYING TAPE Filed Feb. 9, 1939 4 Sheets-Sheet 5 Dec. 31, 1940.

P. H. DIXON METHOD OF AND MACHINE FOR APPLYING TAPE Filed Feb. 9, 1939 4 Sheets-Sheet 4 Patented Dec. 31, 194$ PATTY tries Mn'rnoD or AND MACHINE FOR APPLYING TAPE 7 Paul H.-Dixon, Wenham, Mass, assignor to United Shoe Machinery Corporation, Borough of Flem-' ington, N. J., a corporation of New Jersey Application February 9, 1939, Serial No. 255,470

' 4 Claims. (01. 12-51) y;

This invention relates to methods of taping and taping machines and is herein illustrated with reference to the reinforcement of shoes or'parts thereof by the use of tape.

Shoe parts are commonly reinforced by'th'e use of adhesive tape which is progressively applied to the shoe part by a pressing member which is arranged to press the tape and work together and to advance the tape andworkby small-increments and hence at a relatively low speed. Moreover, the tape is commonly applied to the shoe part while the latter" is in a fiat or otherthan-normal shape with the resultthat when the shoe part is embodied in a shoe-the tape usually 15 being applied to a normally concave surface of the shoe part-the forming of the-shoe part into its normal shape causes the tape ;to pucker with a corresponding loss in i-tsvalue as a reinforce- Prior machines of this type are also commonly provided with mechanism for pulling the-tape from a source of supply so thattheforce which is required to pull off the tape will not hamper the feed movement of the work and tape. Such 25 delivery of the tape, however, to the point where it is applied. to the work under substantially no tension, aggravates the difficulty referred to above because thetape does not become efiective as a reinforcement for the shoe part -to which it 30 is attached until the shoe part has been stretched to take up the initial resiliency of; the tape.

1 In'view of the foregoing, it is al general object of the invention to provide an improved method r of and a machine for uniting atape an'dshoe part more rapidly than is possible by the use'of a progressively operated machine and-insuch "a way that the reinforcing tape is effectual to resist any stretching of the shoe partu Accordingly, the invention in one aspect provides, an improved method of taping which consists in tensioning a length of tape'suificient for a complete taping operation to remove its inherent elasticity and, while holding the tape under tension, pressing a workpiece and the entire length of tape together simultaneously to unite the tape and work piece. By practicing this method substantially less time is required in the application of the entire length of tape than is consumed in applyingfthe tape progressively; and because the work is united with thefentire length of tape while it is under tension, any tendency of the tape to pucker on the work piece is minimized. v

Further to insure against this tendency, the

under substantial tension and pressing. means embodied iria finished shoe. tendency of the tape to pucker with the disadwrapped about the support.

invention also contemplates a method including as steps in 'addition'to those of the methodstated above that of forming the tape into the shape it i is to have in a'finished shoe, that is, a concavo- "convex formation, and then while holding the formed tape under tension forming the, work I one feature, a taping machinecomprising means for clamping'a tape against a work support, the clamp and work support then being movable to cause a'lengthof tape sufficient for a complete taping operation to be wrapped about the support cooperating with the support to unite a work piece with the entire length of tape on the sup port simultaneously. 7

Preferably, and as herein illustrated, the shape of the pressing means and the work support about which the tape is wrapped is substantially like that of the shoe part to be reinforced when Accordingly, any

vantages noted above is avoided because the tape and work piece are united while in their normal zresiliency as it is Wrapped about the support, the illustrated machine includes means constituting another feature of the invention arranged to set up such tension in the tape, in addition to that which is caused by pulling it from itssource of supply, as is necessary to'bring it to a substantially non-stretching condition when it is In accordance with another. feature of the invention, the illustrated work support is provided 1 with opposed work engaging surfaces adapted to befbrought successively into operative relation with respect-to the presser member when the work s'upportis rotated, the tape to be applied in a succeeding operation being wrapped about one of these surfaces as the other is moved'to'its inoperative position. I I

, Invention'i's also to be recognized in the tape clamping e ns referred to above which comprises clamps associated with each of the work -engaging surfaces of the support and means for operating the] clamps so that the tape is held clamped under tension throughout the tape ap-- plying operation against that work engaging surface of the support which is in operative position, one clamp being retracted from and then advanced toward the support during each rotative movement of the latter thereby to grip a succeeding length of tape against the support preparatory to its being pulled from the source of supply.

To facilitate the cutting of the length of tape on the support from the succeeding tape, each clamp is constructed in accordance with another feature of the invention so as to c1 amp- -the tape against the support at spaced points 'between which the tape is to be cut. Thus, the tape spanning the points where it isclamped is held taut during the cutting operationan'd both'en'ds of the tape adjacent to the cut'arehel'cl against the support.

The invention also provides an .improved mounting for a pressing member adapted to press .a workpiece against a support which permitsxunobstructed movement of work pieces onto the work support and their removal'therefrom. To this end, .the invention provides means" for moving the pressing member'from' an inoperative positionnormallyfabove and behind thesupport, first forwardly, and then heightwise ofthe support into engagement With'the'work ,piece thereon, the movement of the pressing member forwardly of the support being arrested when the pressing memberis directly above the support.

These and other features of the invention will appear more'fully from the following detailed description when read in connection with theiaccompanying drawings and will be ,pointed out-in the appended claims.

In the drawings,

'Fig. 1 is a side elevation of an illustrativemachine embodying the invention, aportionof the frame having been broken away to expose the operating mechanism; 7 I

. Fig. 2 is a plan view of the machine illustrated inFig.'1, partsof the operating mechanism for the pressing member being omitted;

Fig. 3is an enlarged front elevationnof thero tatable work support and the mechanism cooperating therewith to clamp and sever the tape;

Fig. 4 is a front elevation of the machine shown toward its operative position.

The illustrated machine comprises-a form l adapted to be engaged by the ridge, of the back seam S of a quarter Q (Fig. 5), guides l2'(Figs. 1 and 4) disposed at oppositesides of the form and adapted to engage the sides of the ridge and portions' of the quarter adjacent-thereto, and a rotatable support or member l4 (Fig. 3) adapted to be engaged by a'marginal portion of thequarter V at each side of the seam ridge adjacent to its top edge, the form, guides and support alsobeing so shaped as to support the quarterin substantially its' normal curvature both longitudinally and transversely of the seam ridge. When the support or member" I4 -is*rotated alength of tapeT, sufficient for a complete it taping operation, is

drawn ffrom a source of supply under sufiicient tension to remove its inherent elasticity, is

united-andthe quarter to be shaped into its desired rpm; The pressing member is then raised to permit the removal of the taped quarter from the formfthe attached length of tape having been cut fr'omthetraiiling supply strip. The rotat- 'able support isthen turned through 180 to draw off'another-length'of tape and to present it into position to be applied to the next work piece to be taped.

Referring more specifically to the means in the illustrated machine for-positioning and supporting-pf the quartenQ, the form I0 is secured to the front of the frame 20"by'a-screw-22 (Fig. 1). The quarteris placed over the pair'of-guides l2 the upper portions of which closely embrace the sides of"theform/l-0-and are: spaced sufficiently to receive the 'seam ridge therebetween. Thus, when the lquarterr-is t pulled downwardly by the operator against the guides 12, the latter-engage the; sides of the seam ridge-and straighten'it 1ongitudinallyand alsoform the quarter transversely of theseam. lnresponse to the downward pressure of the quarter-against the guides the guides fIYielddownwardly being mounted to slide vertically between plates 24 integral with the form l 0, (the plates 24 carrying screws-26 (Fig. 4) which'extend through vertically elongated slots 21 in the guides I2. Theguides are normally held in their uppermost positions and separated fromeach other at-their upper ends by a spring 28 kwhich connects the lower ends of the guides I2,;the latter being-adaptedto bearagainst a cam-member 30 which is fixed to the form [0 h by means of screws 32. The .camsurfaces ofthe member 130 aareso shaped as to cause the top edges ofthetguides I! to approach each other at the same rate as-they are lowered so as eventually -to-grip tha sides of the: portion of the seam ridge whi chextends'beyond .theline of stitching when the edgeiface of .the seam ridge is in engagement with" the form [0 thereby insuring the alinement of the seam ridgewith'the middle of the form.

'Thesupport l4 isv provided withopposed tape supporting surfaces'theshape of whichcorresponds to that ofthe upper surfaces ofthe guides l2 when in their operativepositionandisfixed to a shaft 34(Fig. 1) one end of which is rotatably mounted .at'38 in the frame 20 adjacent to the formf'l'll. 'Near. its opposite end,.the-shaft 34 is rotata-bly mounted. in'the'outerend of alug 38 extending" toward the center of the machine from the left-hand'side of the frame 20 (Fig. 2). The opposed tape supporting, surfaces of the support M are adapted to bembroughtsuccessively into their operative position (in which the upper surfaces of the 'support andguides l2 are continuous with each other) ,byintermittent rotative movements or the shaft'i34 through. one-half of a revolution. Thusfiduring each half revolution of the support 'lkitfpulls off'alength of tape sufiiunder tension and is cut from the trailing length of tape as will now be described in detail.

The combined tape clamping and cutting device l6 includes duplicate in'strumentalities, one being disposed at eachside of the support, each comprising an arm 40 having an elongated slot 42 which permits the arm 40 to slide axially of the support l4 and With respectv to a block 44 which, by means of a screw 45, is pivoted to a collar 48 fixed to the shaft 34. Each arm 40 carries at its forward end a knife 50 (Fig. '3) which, when the arm 40 is swungtoward the support I4, cooperates with another knife 52 mounted at one-side of a recess 54 in the support to sever the tape T. The knife 52 is adjustably fixed to the rear side of the support M by a screw 53 which passes through a slot in the shank of the knife so as to permit the knife edge, upon being sharpened, to be set flush with the work engaging surface of the support l4. In order to insure that the tension in the tape T will not be relieved either before or after it is cut, the illustrated machine is provided with means presently to be described for clamping each end of the tape against the support throughout each taping operation. This means comprises clamping members 56 and 58 associated with each of the arms 40 both of which cooperate with the support E4 to clamp the tape 'thereagainst before the cutting edges of the knives 50 and 52 pass each other. The member 56 is fixed to the arm 40 and is adapted to enter the recess 54 just ahead of the knife 50 and cooperate with a shoulder 60 at the side of the recess opposite to the knife 52 to clamp against the support 14 the leading end of the trailing portion of the tape before and after it is cut. Similarly, the member 58 is pivoted to the arm 40 at 62 and is normally held in a position overlying the cutting edge of the knife 50 by a spring 64. Thus, when the cutting and clamping device 56 is moved toward the support 14 the member 58 also clamps the trailing end of the length of tape T against the support l4 before it is severed, the member 58 being permitted to yield by the spring 64 so as not to inhibit the movement of the arm 4i] which is necessary to cause the knife 50 to sever the tape. a

The tape is tensioned and is directed in alinement with the support M by being led between rolls E56, 68 rotatably mounted on the frame 20 below the support It, adjustable friction means of any suitable type being associated with the roll 68 so as to set up sufiicient tension in the tape which is wound about the support I4 'to remove substantially all of its inherent elasticity.

The operation of the combined tape clamping and cutting devices [6 will now be traced through 360 of their movement fromtheir positions as illustrated in Fig. 3. A work piece having been pressed against the length of the tape T in Fig. 3, the support l4 (and the devices l6) are swung through 180. Atthe beginning of this movement, the forward end of the left-hand arm 40 is swung away from the support M to unclamp the leading end of the tape T permitting the work piece with the tape attached thereto to be removed from the machine against the yielding,

clamping action of the right-hand clamping member 58. The right-hand, clamping device 16 is maintained in its operative relation with respect to the support Mthroughout this rotative ,movement thereby. causing the leading end of a freslrlengtlroftape to be securely held between the support 54*. and .the clamping member 56 whereby a new lengthof tape T, sumcient for a succeeding taping operation, is drawnunder tension from the source of supply and is wrapped about the formerly lower surface of the support I 4. During the corresponding movement of the left-hand clamping and cutting device l6 toward the right-hand side of the machine, after being retracted from the work support radially as stated above, it is then moved axially of the sup-- port rearwardly of the machine so as to avoid any interference with the rolls 66, 68 or with the tape at the lower side of the support. Subsequently,iand just before. the completion of the 180 rotative movement of this device l6 into its right-hand position, it is advanced axially of the support l4 so that itoverlies the tape and then is moved radially of the support again to clamp and sever the tape as indicated by the position of the right-hand clamping device [4 in Fig. 3. Thus, during the continued operation of the machine both ends of the tape T are clamped throughout the applying operation insuring that the tape will be applied to the work while under tension and while it conforms to the normal transverse curvature of the work piece. This operation of the clamping devices I4 is effected by the mechanism now to be described.

' This mechanism comprises a cam 69 (Fig. 2) which is fixed to the lug 38 and has a groove 10 the bottom surface of which effects the movement of the arms 40 radially of the support I4 and the sides of which move the arms 40 axially of the support in the. manner described above. The groove 10 is arranged to receive the heads of screws 72- which are threaded in the rear ends of the arms 40 and may be locked in adjusted position thereon by means of nuts 14. The screws 12 are held seated in the groove 10 by springs H5 which connect the arms 40 with a pin I8 fixed to the shaft 34.

The above described operation of the clamping and cutting devices 16 results from their being rotated bodily with respect to the cam 69 by operator controlled mechanism comprising a bevel pinion 89 rotatably mounted on the shaft 34 and adapted to be driven by a segmental gear 82 which is mounted to swing freely on a. shaft 84 journaled in the frame 20. The shaft84 carries at its right-hand end a pulley 86 adapted to be driven by a belt from any suitable source of power. The gear 82 is operated by a link 88 which is connected at its lower end to a treadle 90 (Fig. 1) which is normally urged upwardly by a spring 92 connecting the treadle with the bottom of the frame 20. Thus, when the treadle 90 is lowered the pinion is rotated in a counterbeing fixed on the rearmost end of the shaft 34.

Each rotative movement of the shaft 34 is stopped at such a point that one of the tape supporting surfaces of the support 14 is in its operativeposition by means comp-rising a collar I00 fixed to the shaft 34 and bored to receive a spring pressed ball I02 which cooperates with either of two recesses I04 formed in the cam 69.

Assuming now that a length of tape T has been drawn from the source of supply and is brought to its position as illustrated in Fig. 3,

a shoe quarter to which the tape is to be applied across its back'seam, as indicated in.-Fig. .5, is placed, overthe form I and is lowered thereagainst by theoperator as explained above. The operator then actuates mechanism now to be described which causes the pressing member I8 to bemoved toward the form to press the quarter against the tape, and to flatten the seam ridge and shape thequarter in the vicinity of the seam ridge about the guides I2 and the sup- .port I4. The pressing member I8 is carried by a bent lever I06 having a cylindrically shaped end I68 which is seated in a complementalrecess in the pressing member I8. To facilitate the placing of work pieces on the form I0 the lever I06, between successive pressing operations, is swung rearwardly of and above the form on a link IIO which is pivotally connected to the frame 20 at H2, and to the lever I06 by a pin I I4. The lever I06 is operated by a toggle comprising links II6, H8 which are pivoted to each other at I20, the link II6 being pivoted to the lever I06 at I22. The link H8 is mounted to slide in an arm I24 and a bushing I26 threaded in another arm I 26, the arms being formed integrally with a lever I30, the hub of which is arranged to pivot freely on the shaft 84. A spring I32 at one end abuts the bushing I26 and at the other end a shoulder I34 on the link I I8, thereby tending normally to urge the link II8 upwardly with respect to the lever I30, this movement being limited by check nuts I36 adapted to engage the lower edge of the bushing I26. To adjust the pressure of the pressing member I8 against the work piece, as will be described later, the bushing I26, which is threaded in the arm I28, may be turned in or out of the arm so as to vary the stress in the spring I32.

To begin the pressing operation, the lever I30 is swung downwardly (Fig. 6) by the operator by lowering a treadle I38 to which is pivoted alink I40, the latter being connected at I42 to the lever I30. The lever I30 is thus lowered to such an extent that a cam roll I44 rotatably mounted on the end of the lever I30 ismoved through a peripheral opening of a cam track I46 in a cam I48 mountedto rotate freely on a shaft I50 which is rotatably mounted in bearings in the sides of the frame'20. During this movement of the lever I30, the operating mechanism for the pressing member I8 is moved first from its position as illustrated in Fig. 6 to the position indicated in Fig. 7, the link IIO having been swung forwardly until the pressing member I8 is directly over the form I0, this movement of the link IIO being limited by a set screw I52 which is threaded in the upper end of the link H0 and is adapted to bear against the frame During this movement no relative rotation occurs between the toggle links H6 and H8 such rotation being prevented by a spring I54 fastened at one end to the pivot I22 and at its other end to a pin I56 carried by the link H6. The spring I54 thus tends to hold an adjustable set screw I58 threaded in the link II6 against an extension I60 of the link II8. However, further movement of the leverI30 beyond the point where the screw I52 engages the frame 20, causes the toggle links I I6, H8 to be straightened and the link I I8 to yield against the pressure of thespring I32 thereby setting up a yielding pressure of the pressing member I8 against the work piece on the guides I2 and support I4. Toward the ,end of the movement of the lever I30 into the cam track. I46, operating mechanism for the cam I58, presently to be described, is tripped and causes the cam I48 to be power operated through a complete revolution during which the cam, because of the eccentric shape of the track I46, causes the presser member I8 to be held down with an increased pressure against the work. This operating mechanism comprises the shafts 84 and I50, referred to above, which are continuously rotated, the shaft I50 being connected to the shaft 84 by means of an intermediate shaft I62 which is journaled in bearings in the lefthand side wall of the frame I8 and carries at its rear end a bevel gear I64 meshing with another bevel-gear I66 fixed to the shaft 84. The shaft I62, near its forward end, carries a worm I68 which meshes with a gear I69 fixed to the shaft I50. Splined on the shaft I50 for axial movement with respect thereto is a sleeve I the left-hand end ofwhich is grooved at I12 to receive the forked arm I14 (Fig. 4) of a bell crank I16 which is pivoted at I18 to the base of the frame.20, the other arm I80 of the bell crank being disposed in the path of a member I62 fixed .to the treadle rod I40. As the lever I36 is moved to bring the roll I44 into alinement with the cam track I46, the member I82 strikes a detent I84 having a tooth I86 which normally abuts a shoulder I81 (Fig. 6) in the periphery of the cam I48. The detent I84 is arranged to slide vertically in a bore I88 formed in a lug I00 extending upwardly from the base of the frame and is normally held in engagement with the cam I48 by a spring I92. Simultaneously with the downward movement of the detent I84 out of engagement with the cam I48, the sleeve I10 is moved to the right (Figs. 2 and 4) with respect to the shaft I50 by the arm I14 to cause a clutch face I94 on the sleeve I10 to engage a complemental clutch element I96, which is fixed to the cam I48 by means of screws I98, thereby establishing a driving connection between the shaft I50 and the cam I48. Immediately after the'beginning of the rotation of the cam I48, the roll I44 on the lever I is received in the cam track I46 thereby relieving the operator of the-necessity of holding the treadle I38 down. However, toward the end of a complete revolution of the cam I48, when its peripheral opening is above the roll I44, the lever I30 is permitted to rise suddenly under the influence of a spring 200 (Fig. 1) which connects the treadle I38 with the bottom of the frame 20. Thus, as the lever I30is again raised toward its uppermost position the clutch element I94 is separated fromthe clutch element I96 thereby interrupting the drive of the cam I48 the rotation of which is stopped in a predetermined position as illustrated in Fig. 6 by the engagement of the "tooth I86 of the detent I04 with the shoulder I81 on the cam I46. Moreover, as the lever I30 thus suddenly rises, the toggle I I6, H8 is broken, the link H0 is swung rearwardly, and the pressing member I6 is lifted above the-form I0 and moved rearwardly thereof to facilitate the removal of the taped work piece from the support I0.

The operation of the illustrated machine and its use in carrying out the method aspect of the invention will now be summarized. Assuming that the friction means associated with the roll 68 isso adjusted as to set up sufiicient resistance in the tape to remove its inherent elasticity, the support I4 is rotated-when the treadle 90 is tripped by the operator'to. draw a length of tape T sufficient for a complete taping operation from the source of supply, this length of tape being gripped atits leading end between claim as new and desire tosecure. by Letters the support and. the .clampingmember ,56. As described above, toward theendof each 180 movement of the support I4the, combined clamping and. cutting device I6,'.then at the righthand side of the machine (Fig. 3), is actuated by the rotative .movementof the arm 4IIv relatively to the cam '69 to cause the trailing end of the tape to be similarly clamped against the support by the clamping member 58 whereby the length oftape T, while wrapped about the support, is maintained under the same state of tension' as when it was drawn between the rolls 86 and 68. At the same time the leading end of the succeeding. length of tape is also clamped against the support I4 by the clamping member 56 and just before the support comes to rest,

the knife 58 passes the knife 52 thereby'severing the tape between the sections thereof clamped against the support by the members 56 and58.

While the tape Tis thus held under tension on the support I4, the operator places a shoe quarter or other workpiece to'be reinforced over the guides I2 with the seam ridge of the work piece, if it is a shoe quarter, extending downwardly between the upper edges of the guides. The quarter while grasped by the operator ateach side of the seam is then lowered causing the portions of the quarters contiguous to the seam to assume the shape of the guides I2 and bringing the end face of the seam ridge substantially into contact with the form I0. During this movement of the work piece the guides I2, under the control of the cam member 38, gradually approach each. other so: that their upper edges. engagingthe sides of the seam ridge restrain the latter against lateral displacement, straighten it and aline it with the longitudinal center line of the form Ill.

The operator then [depresses the treadle I38 which first causes the pressing member I8 to be held with'a light yielding pressure against the work piece. Further downward movement of the treadle causes. the inter-engagement of the clutch elements I94 and I98 which then drive the cam I48 through a complete revolution which, through the above described operating mechanism" for the pressing member I8, causes the latter to exert a gradually increasing and then diminishing pressure on the work piece throughout one revolution of the cam I48 without the help of the operator. As the work supporting surfaces of the guides l2 and support M are shaped in conformity to the shape which the shoe quarter is to have in a finished shoe and since the work engaging surfaces of the pressing member I8 and support I4 are coextensive with the area of the work to which the tape is to be attached, the Work piece is shaped and united with the entire length of tape simultaneously. while'in its normal state of curvature. Thus, any puckering of the tape in the finished shoe is avoided.

As the cam I48 approaches the end of eac revolution, its peripheral opening permits the lever I30, and hence the pressing member I8, to rise above and rearwardly of the form I0. At the beginning of the succeeding pressing and taping operation, the left-hand clamping-and severing device It is retracted from the support It thereby freeing the leading end of the tape which is attached to the work piece, and permitting the operator to withdraw the work piece from the form.

Having thus described my invention, what I Patent of'the United States is:

1. That improvement in methods of taping which consists in tensioning a length of tape suflicient for a complete taping operation sub.- stantially to remove its inherent elasticity, and while holding the tape under tension, pressing a work piece against the entire length'of tape simultaneously to unite the tape and work piece.

2. That improvement in :methods of taping which consists in tensioning a length of adhesive tape sufiicient for a complete taping operation substantially to remove its .inherentelas ticity, forming thetape into the shape it is-to have in a finished shoe, and while holding the formed tape under tension, pressing a work piece against the entire length of tape simultaneously to unite the tape and work piece. 3. That improvement in methods of taping which consists in drawing from'a source of supply a length of adhesive tape sufficient for a complete taping operation, tensioning .the'said length of tape substantially to remove its' inherent elasticity, ,and pressing a work piece against the'entire tensioned length of tape simultaneously. v

4. That improvement in methods ofitaping which consists in drawing from a source of supply a length j of adhesive tape sufficientflfor a complete taping operation under such. tension as to remove substantially all of its inherent elasticity, imparting a concavo-convex formation to said tape while under tension, and pressing a work piece against the entire formed and tensioned length of tape simultaneously.

5. That improvement in methods of taping which consists in drawing from a source of supply under tension sufficient to remove its inherent elasticity, a length of adhesive tape adequate for a complete taping operation, and while holding the tape under tension, pressing a work piece and the entire length of tape together simultaneously.

6. That improvement in methods of taping which consists in tensioning a length of tape adequate-for a complete taping operation sufiiciently to remove its inherentelasticityyforming said length of tape while under tension anda 1 work piece into substantially the shape they are to have in a finished shoe, and pressing the'work piece and the entire tensioned length of tape together simultaneously. 7 i I 7. That improvement in methods of taping which consists in tensioninga length. of tape suflicientfor a complete taping-operation substantially to remove its inherent elasticity, and

while holding the tape under tension, pressing a work piece against the.,entire length; of tape simultaneously to unite the tape and work piece, and cutting the tape. 8. That improvement in methods ,of taping which consists in shaping a length of tape suffi cient for a complete taping operation into the form it' is to have in a'finished shoe, tensioning the formed tape, and while holding the tape un--] 10; Ina taping machine, means ior'tensioning a length of adhesive tapesufiici'ent for a complete taping operation substantially to remove its inherent elasticity, means for forming the tape into the shape it is to'have in a finished'shoe, means for holding the formed tape under tension, and means for pressing a 'work piece. against the entire length of tape simultaneously to unite the tape and work piece.

11. In a' taping'machine, a work' support, a clam-pcooperating'with 'said support to grip a tape, said support and'clamp being mounted to move as a unit to "cause a'length' of tape to be wrapped about said support, a member cooperating with said support'to press a work piece againstthe tape, and means for alternately movi'ngsaid member andsaid support and clamp.

12. In .a taping machine, a work support, a

pressing" member, means 'for clamping a tape against :the work support, saidisuppor't and clamp being rotatable as a unit to cause a length of tape sufiici'enti'for a complete taping operation to be. wound about saidsupport, and means for alternately rotating said" support and Z clamp and moving said pressing member toward said support to press a work piece against said'tape and support. I 13. In a taping machine: a work support, pressing means, said support. and means being alternately movable relatively to each other to unitean adhesive tape and work piecedisposed therebetween, and tape "clamping means associated with said support, said" support and tape clamping means being mountedto move together to cause alength of tape sufficient for a completetaping operation to be drawn from-the sourceof supply, wrapped about said support and presented to the pressing means.

14. In a taping machine, a work'support, pressing means, said support and means being mov able relatively toeach other to unite an adhesive tape andwork piece disposed therebetween, a clamp constructed and arranged to grip the tape, and means for operating said clamp to cause it successively to grip'and release the tape, saidsupportand clamp being mounted to move together while the tape is clamped to cause a length of tape sufii'cient fora complete taping operation to be drawn from thesource of supply and to be wrapped about said support.

15. In a taping machine, a work support mounted for movement between an operative and inoperative position, a pressing, member, a clamp cooperating with said support to hold a tape thereagainst, means for operating said clamp constructed and arranged to cause the clamp to hold thev tape against the support .as it is moved from its inoperative position to its operative position, means for'successively retracting the clamp, from and advancing the clamp toward said ,work support during its movement from its operative position to its inoperative position, and means for moving said pressing member toward said work support after the latter has been moved into its operative, position;

16. In a taping machine, a work support, a clamp cooperating with said support to hold an adhesive tape thereagainst, said support and clampbeing mounted to move together to cause a lengthof tape to be wrapped about said support, means for resisting the feedgmovementof the tape-whereby it is tensioned sufiiciently to remove the inherent elasticity from the tape on the support, and pressingmeans cooperating with ls'aid.supportitolpressxthe'tape and a work piece together whereby they areradhesively united. -;17'.'"In atapingmacliinaga worksupport, a pres'singmeinber,said support and member being mounted rfor movementrelatively to each other -to'ipress togethera'I wo'rk piece and tape disposed therebetween, means for clamping the tape against saidsupportf means for moving said support and clamping means between each pressingopei'ation' to" cause a length of tape sufiicient foria complete: tapingoperation to be wrapped about said support, and means for cutting the tape. l L

'18; In :a' taping: machine, a rotatable work support carrying afclamp adapted to hold the .tape againstwisaid support, ,a cutter associated with said clamp, said' cutter and clamp being mounted to'move together toward and away from said; support? successively'to clamp and cut the -tape;'.a pressing member, and means for alternatelymoving saidzpressing member toward and away from said support and rotating said work supportfi I I9; Ina taping machine, awork support having a plurality ofawork' engaging surfaces, means for periodically rotating said support to bring said surfaces successively into operative position, means for clamping said tape against said work support prior'to each rotation thereof, means for'pressing .a work piece" against the tape on saidisupport,"and'means' operable after the tape has been'clamped against said support to cut the taper 20. In avtaping: machine, a work support, a clamp cooperating with said support to grip a tape disposed therebetween, said clamp and support being movable together to cause a length of tape to be drawn from: the source of supply, saidclamp' being mounted to move with respect to said 'supriort towald and away therefrom, and means/actuated by'the movement ofsaid supportand clamp together to move said clamp with respectfito saidsupportto grip the tape.

21; In a taping machine, a work support, a clamp cooperating with said" support to grip a tape disposed therebetween, said support and clamp being mounte'dto rotate together to cause a length of tape to bewrapped about said support, and-means" actuated by the rotation of said support and clamp for moving said clamp toward and: away from saidsupport to grip and release the tape respectivelym 22. In a taping machine, a rotatable work support, a clamp mounted-for movement axially and radially ;of said support to gripa tape disposed therebetween, said support and clamp being mounted to rotate-together to cause the tape to be. drawn from the source of.,supply and to be wrapped about said support, and means arranged to utilize the vrotative movement of said clamp to move the latter toward and away from said support. r

'23. In a taping machine, a work support, a clamp ,cooperating with said support to grip a tape disposed therebetween, said support and clampbeing mounted to move together to cause a length of tape to be drawn from a source of supply, and means actuated by the movementof'said support and clamp for moving said clamp toward and away from said support, said means comprising a cam and a springarranged to hold said clamp against said cam.

24." In a taping'machine, a work support, a tape clamp associated with saidsupport, said support andcla-mp being mounted to rotate tospect to said support, said means comprising a gether to cause a length of tape to be drawn from a source of supply and to be wrapped about said support, and means for operating said tape clamp com-prising a cam shaped and'arranged successively to cause said clamp to grip the tape and then to release the tape.

25. In a taping machine,- a work support mounted to rotate intermittently, a tape clamp mounted for movement axially and radially of said support to grip a tape disposed therebetween, and means for operating said clamp during one rotative movement of said support to clamp the tape,- said, means being arranged to move said clamp radially and axially with respect to said support simultaneously during a succeeding rotative movement of said support to release the tape.

26. In a taping machine, a rotatable work support, tape clamping means carried by said support, said means comprising a lever mounted to slide and swing on said support, means for operating said lever in response to rotative movement of said support, said means comprising cam surfaces shaped and arranged tomove said lever radially and axially with respect to said support simultaneously.

27. In a taping machine, a rotatable work support, a clamping member cooperating with said support to grip a tape disposed therebetween, said clamping member being mounted to slide on a fulcrum about which said member is adapted to swing radially of said support, and means constructed and arranged to utilize the rotative movement of said work support simultaneously to cause said member to slide axially and swing radially with respect to said support.

28. In a taping machine, a work support, a clamp mounted for movement axially and radially of said support to grip the tape, said support and clamp bein mounted for movement together to cause a length of tape sufiicient for a complete taping operation to be wrapped about said support, and means actuated by the movement of said clamp with said support for moving said clamp simultaneously radially and axially of said support.

29. In a taping machine, a work support, a tape clamp associated with said support, means for intermittently moving said support and clamp together to cause a length of tape to be drawn from a source of supply, and means for operating said clamp during one of its movements with the support-to clamp the tape, said means being arranged to utilize a succeeding movement of the support and clamp to cause said clamp to release the tape. I

30. In a taping machine, a work support, a tape clamp mounted for movement toward and away from said support to clamp and release a tape disposed therebetween, said support and clamp being mounted for intermittent rotative movement, and means for operatingsaid clamp during one rotative movement of said support to clamp the tape thereagainst, said means being arranged to move said clamp away from said support to release the tape during a succeeding rotative movement of said support.

31. In a taping machine, a work support, a tape clamp cooperating with said support to grip a tape disposed therebetween, said support and clamp being mounted to move together intermittently to cause a length of tape to be drawn from a source of supply, and means arranged to utilize the movement of said support and clamp together to move said clamp with recam shaped and arranged to hold said clamp against the tape against said support during one of its movements and to -move said clamp to release the tape during the succeeding movement of said support.

- 32. In a taping machine, a work support, a tape clamp associated with said support, means for intermittently moving said support and clamp together to cause a length of tape to be'drawn from a source of supply, clamp operating means arranged to cause said clamp to-hold the tape against said support throughout one of its movements, a second tape clamp, said clamp operating means being arranged to cause said second clamp to be moved successively out of and then into engagement with the tape on said support during the said movement thereof.

33. In a taping machine, a work support, a pair of tape clamps carried by said support, means for intermittently rotating said support and clamps together to cause a'length of tape tobe drawn from a source of supply, and clamp operating means comprising a cam constructed and arranged to cause one of said clamps to hold the tape against said support during one movement thereof and successively to move the second clamp away from and then toward said work sup- 7 port during the'same movement thereof.

34. In a taping machine, a'work support, a pair of tape clamps cooperating with said support to hold an adhesive tapethereagainst, said support and clamps being movable together intermittently to draw lengths of tape from a source of supply, clamp operating means arranged to utilize the movement of said support and clamps together to move said clamps toward and away from said support, said means comprising a cam shaped and arranged to cause one of said clamps to hold the tape against said support during one movement thereof and to move the other clamp successively away from and then into engagement with the tape on said support during the same movement thereof. 9

35. In a taping machine, a work support and a tape clamp associated with said support, said support and clamp being intermittently movable together to cause a length of tape to be wrapped about said support, said clamp being constructed and arranged yieldingly to clamp an end of the tape on said support and positively to clamp an end of the tape to be wound upon the work support during a succeeding movement thereof.

36. In a taping machine, an intermittently movable work support, tape clamping means cooperating with said support when it is moved to draw a length of tape from a source of supply, said means comprising clamping members arranged to clamp the tapeat spaced points against said support and a cutter arranged tosever the tape between the clamped portions thereof.

37. In a taping machine, a work support, tape clamping means, saidsupport and tape clamping means being movable together to draw a length of tape from a source of supply, said means comprising a pair of clamping members, operating means'for said members arranged to cause one of them to hold the leading end of the tape against said support during one movement thereof, the other clamping member being arranged to grip the trailing end of the tape on said support and the leading end of the succeeding length of tape, the last mentioned clamping member car- 38. Ina taping, machine, a work support; having opposed work engaging surfaces, a pressing member mounted for movement intermittently toward and away from said support, means for rotating said work support between successive movements of said pressing member to cause said surfaces to be moved between operative and inoperative positions, clamping members for holding a length of tape at spaced points against said support, and means operable during each rotation of said support to hold one of said clamping members in operative relation to said support and to cause the other member to be successively retracted from and advanced into operative rela- I tion to said support during the same movement thereof.

39. ha taping machines a work support, a clamp cooperating with said support to gripa tape, said clamp and support being rotatable'to wind a length of tape about said support, a second clamp for holding said, tape against said support at a point spaced from the first mentioned clamp, a shear associated with said second clamp to cut the tape, and means cooperat- ;ing with said support topress a work piece against the tape on said support.

40. In a. taping machine, a work support having opposed work engaging surfaces, means for rotating said work support to move its said surfaces between operative and inoperative positions, clamps for holding a length of tape at spaced points against said support, means for operating said clamps constructed and arranged tohold one in operative relation to said support and to cause the other clamp to (be successively retracted irom'and advanced into operative relation to said support duringits movement between successive positions, means for pressing a work piece against the length. of tape between said clamps, and means for cutting the tape.

41. In a taping machine, a rotatable work support, a pair of clamps mounted to rotate with said support, a shear associated with each of said clamps, means for moving each of said clamps alternately out-of and into operative relation with respect to said support, a pressing member mounted for movement toward and awayirom said support, and means for operating said member and one of said shears successively to press a work piece against the tape and cut the tape.

42. In a machine for operatingupon a work piece having a seam ridge, a seam ridge support, guides disposed at opposite sides of said support and mounted for movement heightwise and laterally thereof, a member associated with and arranged to utilize their movement heightwise of said support to move them laterally thereof, and a pressing member cooperating-with said support to press the seam ridge, said guides and member cooperating with each other to pressthe portions of the workpiece contiguous to the seam ridge.

43. In a machine for operating upon a work piece having a seam ridge, aseam ridge support, guides overlying said support and'being spaced to receive a seam ridge therebetween, said guides being mounted for yielding movement toward said support, means arranged to utilize the yielding movement of said guides to cause. eaclrof them to be moved toward the other at thetsame rate whereby the seam ridge is gripped between them and alined with said support, and a pressing member cooperatingwith said support andguides to press the seam ridge and portions of the work piece contiguous thereto.

44pm a machine for operating upon a work piece havinga seam ridge, aseam ridge support, guides mounted to slide toward said support and to swing toward each other, said guides normally being spaced so as toreceive a seam ridge therebetween, connections between said guides arranged to utilize their sliding movement toward said support to cause them to be swung toward each other, and. a pressing member cooperating with said support to press the seam ridge and co operatingwith said guides to press the portions of the work piece contiguous to the ridge.

45. In a lnachine for use in making shoes, a work support, a pressing member disposed normally above and behind said support, means for moving said pressing member forwardly and heightwise of said support into engagement with a work piece thereon, and means for arresting movement of said member forwardly of said support when said member is directly above said support.

46. In a machine for use in. making shoes, a worksupport, a. pressing member, a lever on which said member is mounted, a link connected to said lever and mounted to swing toward and away from said support, and means for operatingsaid-lever to swing said link toward said support and then to move said pressing member heightwise.- of said-support into engagement with a work piece thereon.

47;,In a machine for use in making shoes, 2.

work support, a. pressing member, and operating meansfor said member comprising a lever, a toggle connected to said lever and a fulcrum for said lever, said. fulcrum being movable toward and away from said. support.

48. In a machine for. use in making shoes, a worlesupport, a pressing member, means for operating said member comprising a lever and a toggle connected to said lever, means for yieldingly holding. said toggle in collapsed condition, and a fulcrum for said lever mounted for limited movement toward saidsupport, said toggle being constructed. and arranged to be straightened to swing. said member about said fulcrum heightwise of said support after said fulcrum has reached, the limit. of its movement toward said support.

49. In a machine for use in making shoes, a worksupport, a pressing member, a lever carrying said. member, said lever being mounted for limited movement forwardly of saidsupport and toswing heightwise thereof, a rotatably mounted toggle, and means for holding said. toggle in collapsed condition, said. toggle being arranged to be rotated while in, collapsed condition to move said lever forwardly; of said support and then to be straightened whereby said lever is. swung heightwise of said support into engagement with a workpiece thereon.

. PAUL I-I. DIXON.

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