US2933744A - Insole rib attaching machines - Google Patents

Description

April 26, 196() s. P. LoTARsKl ET AL 2&933744 INsoLE RIB ATTACHING MACHINES 6 Sl'xeets-Sluaet` l Filed June 24. 1958 E5 z0-f E Inventors April 26 1960 s. P. Lo'rARsKl ETAL 2,933,744

INsoLE RIB A'r'rAcHING MACHINESA 6 Sheets-Sheet 2 Filed June 24, 1958 fa 160 JM APY 26, 1960 s. P. LoTARsKl ErAL 2,933,744

INSOLE RIB ATTACHING MACHINES 6 Sheets-Sheet 5 Filed June 24, 1958 April 26, 1960 s. P. LoTARsKl ETVAL 933,744

INSOLE RIB ATTACHING MACHINES Filed June 24. 195e s sheets-sheet 4 April 26, 1960 s. P. Lo'rARsKl ETAL 2,933,744

INsoLE RIB ATTACHING MACHINES 6 Sheets-Sheet 5 Filed June 24. 1958 April 26, 19.60 s. P. LoTARsKl ETAL 2,933,744

INSOLE RIB ATTACHING MACHINES United States Patenti() i INSOLE Rm ATTACHING MACHINES Stephen P. Lotarski, Beverly, and Francis R. Speght, Dedham, Mass., assignors to United Shoe Machinery Corporation, Flemington, NJ., a corporation of New lersey Application June 24, 1958, Serial No. 744,123 9 Claims. (Cl. 12`20) This invention relates to machines foi attaching strips to work pieces and is illustrated herein'as embodied in a machine for attaching ribbed strips to insoles to provide sewing ribs thereon of the typeA disclosed in a copending United States application Serial No. 677,331, tiled August 9, 1957 in our names, now Patent No. 2,898,614, issued August 11, 1959. It is to be understood, however, that in its broader aspects the invention is not thus limited to that particular type of machine norV to the attachment of that type of strip.

In accordance withv usual procedure in attaching ribbed strips to insoles, the operation commences at the heel breast line at one side of an insole, where thele'ading end vof a strip drawn from a source of supply is attached, then progresses along the margin of the insole at that side toward the toe end and, after rounding the toe end, continues along the margin at the opposite side to a point located at the heel breast line at that side of the insole. In the interest of both good shoemaking and economy of material, it is desirable that the attaching operation be terminated at a point located substantially in transverse alinement with the starting point', It will be appreciated, however, that such a result requires'considerable skill and the closest attention on the part of the operator, a requirement not easy of fulfillment in operating a machine at high speed.` To enable the machine to produce this result automatically there is provided, in the machine disclosed in United States Letters Patent No. 2,670,480, issued March Y2, 1954 in the name of Alfred S. Clark, means for automatically stopping the feed of the vstrip when the attaching operation reaches a point at one side of the insole in transverse alinement with the starting Vpoint at the opposite side of the insole. The means in question comprises a pair of fingers normally maintained vin parallel relation and of which the outer finger is normally in contact with a microswitch carried by the inner linger to maintain the microswitch open. During the at-`r taching of the strip along the starting margin of the insole the two iingers are held just above the upper surface of the insole body inwardly of the rib. When the attaching operationalong the opposite margin of the insole reaches the shank portion, where the insole narrows, the fingers engage the top of the rib at the v*side of the insole to which the rib was irst attached, and ride on'the rib until the outer one ofthe pair of .fingers drops off, Vwhereupon the-microswitch is closed and energizes a solenoid which is connected to :the upper portion of a two-part treadle rod to disconnect the treadle and disengage a clutch which controls the strip feeding mechanism.

AIt has been found that with this arrangement, when regions ofthe insole, is apt to engage the rib and be moved up out of parallel relationrwith the outeriinger, thereby causing the microswitch to be closedand actuating the ,mechanism to stop the feed of the stripbefre the attachving operation has reached the desired point.

It is an object of the present invention to provide improved means of the type above described for automatically stopping the feed of a ribbed strip at a point where the two ends of the strip will be in substantial alinernent transversely of the insole, irrespective of differences in sizes or styles of insoles operated upon.

To this end and in accordance with a feature of the invention, there is provided a single nger one end of which is adapted to engage the top of that portion of a ribbed strip which has been attached to one margin of an insole at a time in an operating cycle when the attachment of the strip along the opposite margin of the insole reaches the shank portion of the insole. At its opposite end the finger is secured to an arm pivoted on a pin on which is also pivoted a second arm parallel to the first, or finger arm and having mounted thereon a normally closed microswitch which is maintained open by contact therewith of the finger arm when the two arms are in parallel relation. The two arms are arranged to swing in unison in one direction about their common pivot to maintain them in parallel relation when' the Vrib engaging end of the finger rides up the top of the rib, and to swing individually relatively to each other in the opposite direction when the rib engaging end of the linger drops oi the rib. As will hereinafter appear in more detail, when the finger drops ofi the rib and is moved out of contact with the microswitch, the microswitch is closed and energizes a solenoid connected by a rod to the upper part of a twopart treadle rod which actuates a lever which controls the operation of the presser and feed foot of the machine. Energization of the solenoid disconnects the two parts of the treadle rod and causes the previously mentioned lever to move to a position in which it stops the operation of the presser and feed foot.

To insure that, when the finger arm swings downwardly as the finger drops ofi the rib, the microswitch arm will be held against swinging movement in the same directionl and thus prevent closing of the microswitch by the swinging movement of the finger arm out of contact therewith, there is provided, in accordance with ,another feature of the invention, means for locking the Vmicroswitch arm in its raised position after it has been moved upwardly with the finger arm when the finger engages the top ofthe rib, and for maintaining it thus locked until after the feeding motion of the presser and feed foot has stopped. As herein illustrated, an upwardly extending latch member is pivotally connectedv to the microswitch arm and has a notch with which a detent, secured to a bracket on which the microswitch arm and the finger arm are pivoted, is arranged to engagewhen the arms are vswung upwardly by upward movement of the finger arm `to engage the top of the rib. As the solenoid is operated supply at the end of an attaching operation, the machine of the present invention, like the machine of the application previously referred to, is provided withA a knife operated by a solenoid energized when the operator closes a switch by actuating a knee lever. In accordance with a lfurther feature ofthe invention there is provided, in addition to the operator 'controlled means for rendering the lmife effective, automatic knife operating means which 1s renderedieiiective by the means previously described foriautomatic'ally stopping the' feeding and attachment of a rlbbed strip and in timed relationthereto.V As herein illustrated, the'knife actuating solenoid is connected in a circuit comprising a microswitch which is normally held open by contact therewith of that end of the feed control lever which is connected to the upper part of the two-part treadle rod, the microswitch being closed by movement of the lever out of contact with it when the treadle is depressed to start an attaching cycle. The above-mentioned circuit comprises a time delay relay which energizes the circuit at a predetermined time after operation of the lever to stop the feed motions of the presser and feed foot, so as to prevent any interference with the operation of the knife or possible damage to it.

A selector switch permits the operator to connect the knife operating solenoidto either the circuit controlled by the feed control lever for automatic knife operation, or to the circuit controlled by the operator-actuated knee lever. Normally the latter will be used only in the event of failure of the automatic system.

In the drawings, Y

Fig. 1 is a view in side elevation of a machine embodying the invention, this View showing the parts-when the machine is at rest;

Fig. 2 is a view in side elevation, on an enlarged scale, of the upper portion of the machine shown in Fig. 1, this view showing the parts in the positions they occupy when the machine is operated to attach a strip to an insole;

Fig. 3 is a perspective view of means for automatically stopping the strip attaching and feeding mechanism and for operating a severing knife;

Fig. 4 is a detail view of the means shown at the left of Fig. 3 for stopping the strip attaching and feeding mechanism; t

Fig. 5 is a detail view showing the connection between the two parts of a treadle rod which controls the starting and stopping of the strip attaching and feeding mechamsm;

Figs. 6, 7 and 8 are plan views illustrating the strip attaching and feeding mechanism and a portion of the automatic stopping means in relation to an insole at the beginning, at an intermediate stage, and at the end of an attaching cycle;

Figs. 9, 10 and 1l are detail views in front elevation showing the means for stopping the strip attaching and feeding mechanism in the initial position, at an intermediate stage, and at the end of a strip attaching cycle;

Fig. 12 is a view in front elevation,.on an enlarged scale, of the lower portion of the machine shown in Fig. 1; and

Fig. 13 is a wiring diagram of an electric circuit which controls the operation of the means for Yautomatically stopping the strip feeding mechanism and of the strip severing mechanism.

The machine is provided with a base 20 (Fig. 1), on the top of which is bolted a head 22 on which are mounted the various operating instrumentalities of the machine. In a bracket 24 xed to the base 20 is mounted a slide Z6, to which is secured a table 28 in which is mounted a roll 30 arranged to support and assist in feeding an insole I (Fig. 2) to which a strip Sdrawn from a source of supply (not shown), is to be attached. The strip S is progressively fed into engagementl with the margin of the insole and pressed thereagainst by-a presser and feed foot 32, which also feeds the combined insole and attached strip. The presser yand feed foot 32 is secured to a lever 34 pivoted at 36 to a slide 38movable horizontally in an arm 40 fixed to a sleeve 42 mounted on a shaft 44 which, through connections more fully described in United States Letters Patent No. 2,573,683, issued November 6, 1951 to Frederic E. Bertrand, imparts reciprocating vertical movements to the foot 32 to press the strip against the insole. The lever 34 is also pivoted at 46 to a bracket 48 on a link 50 connected by an arm 52 to the shaft 44, whereby reciprocating horizontal movements are imparted to the foot 32 to feed the strip and insole. Y Y

A two-arm lever 54, pivotedsubstantially midway its aps-3,144.

length on a shaft 56 supported in the machine head, has a pin-and-slot connection at its lower end to the slide 38. In the upper end of the lever 54 is provided a slot 58 through which extends a stud 60 carrying a roll 62 with which is arranged to engage a cam portion 64 of a lever 66 fulcrumed about midway its length on a shaft 68 supported in a bracket 70 secured to the machine head. The lever 66 is connected by a link 72 to the upper end of the upper section 74 of a two-part treadle rod, the lower section 76 of which extends through a bracket 78 secured to the machine head 22 and is connected at its lower end to a treadle (not shown). To the upper end of the lower treadle rod section 76 is secured a pawl 80 which is normally in engagement with a pawl 82 secured to the upper section 74 of the treadle rod, whereby the treadle rod may be pulled downwardly as a unit.

When the treadle rod sections 74, 76 are pulled down by depression of the treadle, the lever 66 is swung in a clockwise direction, as seen in Fig. 2, and its cam portion 64, acting on the roll 62, causes the lever 54 to swing in the same direction about the shaft 56, against the resistance of a tension spring 83 attached at one end to the machine head 22 and at its opposite end to a pin 84 extending from the lever 54. Clockwise movement of the lever 54 causes the slide 38 to move to the left of Fig. 2 and the lever 34 to turn counterclockwise about the pivot 46 to move the presser foot 32 to the right, adjacent to the delivery side of a guide 85 through which the strip S is fed, so that the presser foot may be in position to press the leading end of the strip against the margin of the insole prior to commencing its oscillatory motion to press and feed the strip and the insole. Depression of the treadle causes engagement of a clutch (not shown) to impart to the presser and feed foot 32 movements in an orbital path in a manner more fully described in the Bertrand patent previously referred to.

As explained above, it is desirable that the operation of the presser and feed foot 32 be automatically stopped when the operation reaches a point along the margin of antinsole substantially in transverse alinement with the point to which the strip has been rst attached at the opposite margin of the insole. For this purpose there is provided a linger 86 (Figs. 1, 2 and 3) which, at the beginning and during the major portion of an attaching cycle, is spaced just above the body portion of the insole inwardly of the margin to which the strip is attached and which, as will hereinafter appear, is arranged, when vthe operation reaches a point near the shank portion of the insole at the side opposite that to which the strip has first been attached, to engage the top of the rib portion of the strip and to remain in engagement therewith until the attaching operation reaches a point substantially in transverse alinement with the starting point.

The finger 86 is secured in a block 88 (Figs. l, 2 and 3) having a sliding t in a groove formed in a block 90 for adjustment of the finger axially of the roll 30 to vary the location of the finger in accordance with variations in the shank widths of different insoles. The block 90 extends transversely of the machine and is mounted in a groove provided inV a bracket 92 for adjustment of the finger forwardly or rearwardly of the machine with relation to the presser and feed foot 32 to vary thelocation of the finger in accordance with the speed atrwhich the machine is operated to feed the strip and insole. The block 90 is secured in adjusted position by a screw 94 extending through a slot 96 in the bracket 92.

The bracket 92 has a tongue and groove connection to one end of an arm 98 (Figs. 3, 4, 9-11), the other end of which is fulcrumed on a pin 100 mounted in a bracket 102 secured to the machine head 22. The bracket 92 is adjustable heightwise relatively to the arm 98 kfor adjustment of the finger 86 heightwise with relation to the insole supported on the Vtable 28, and is secured in adjusted position by a set screw 104. On the pin 100 is also fulcrumed oneV end of an arm 106 parallel to the speak/i4 arm 98 and carrying a rnicroswitch 108 having a springpressed button 109 with which the arm 98 engages to maintain the microswitch normally open. In the opposite bifurcated end of the arm 106 is pivotally mounted an upwardly extending latch lever 110 having a notch 112 formed in its upper end portion and with which, as will be explained, is adapted to engage a detent 114 secured to the bracket 102. 1 j e l Referring to Figs. 1, 2 and 3, the upper treadle rod section 74 extends through a boss 116 on a horizontal rod 118 extending laterally of the machine head 22. The forward or right-hand end of the rodV 118 extends through a block 120 secured to the machine head 22 and has thereon a nut V122 and a Washer 124 between which and the block 120a spring 126 is mounted on the rod 118. :The rear or left-hand end of the rod 118 isconnected to the core 128 of a solenoid 130 connected inan electric circuit shown Vin the wiring diagram, Fig. 13, in which circuit', is also connected `the rnicroswitch 108.

The mechanism heretofore described for automatically stopping the operation vof thev presser and feed foot 32 operates in the following manner. When the machine is started to begin an attaching operation, the presser e the insole, as illustrated inFig. 6.- On an insole for a right shoe the operation commences at theV outside shank portion. Q,

, As the presser and feed foot32 executes its orbital motion to press the strip and feed the work, the finger 86, which is located in the proximity of the foot 32, is

spaced just abovethe upper surface of the insole inwardly of the margin to which the strip is being attached.y

After the presser andi feed foot has rounded the toe portion of the insole and as the operation reaches the shank portion on the outside` margin of thel insole, where the insole narrows, the finger 86 is caused to move up onto the top of the 'rib portion R of the strip, as shown in Fig. 7, and, remains ,in engagement therewith as the attaching operation progresses toward the heel end of the insole `until a point on the insole is reached that is substantially in transverse alinement with the' starting point, whereupon the finger drops oif the rib portion, as shown in Fig. 8.

When the finger 86 moves up onto the rib portion of the strip, the arm 98 swings about the'pin 100 clockwise, as seen in Fig. 10. As more clearly shown in Fig. 4, a stud 132 is threaded into the arm 98 and has thereon a nut and a washer 134 Yextending across thefundersurfaces of both armsv 98 and 106, so that when the arm 98 yswings clockwise, as previously explained, the arm 106 v 'which carries the rnicroswitch 108 is caused to swing in (see Fig. ,10) to lock the arm 106 in its raised position A so that the rnicroswitch 108 will be closed when the finger v86 'drops oif the Vrib portion R of the strip at the sidewhere the strip was frst attached, as shown in Fig. 8, and the iing'erfarm 98 swings in a counterclockwise or downward direction, as seen in Fig. 11, out of parallel relation with the rnicroswitch arm 106vand away from 'the rnicroswitch button 109. Closingofthe microswitch- 108, energizes the solenoid 130 which pulls the rod 11S' to the left, as viewed in Figs. 2 and 3, against the resist- A`e ance of the spring 126, thereby disconnecting the upper treadle rod section 74 from the lower section 76. The

treadle rod section 74 is then moved upwardly from they link 72 and at its other end to a pin 141 projecting from `the machine head 22. Upward movement of the rod section 74 is limited by an abutment 142 adjustably secured by screws 144 to the machine head 22. The lever 66 is thereby caused to swing in a counterclockwise direction, as seen in Fig. 2, about the shaft 68 to stop the mechanism which operates the presser and feed foot 32 even though the operator should continue to hold the treadle depressed. When the rod 118 moves to the left, as previously explained, a striker 146 adjustably secured to the rod 118 by screws 148 engages the upper end of the latch lever and causes the lever to swing out of engagement with the detent 114, against the resistance of a tension spring 150 (Figs. 3 and 9-l1) secured at one end to the latch lever and at its other end to a member 152 secured to the bracket 102, the spring tending norinally to maintain the latch lever in engagement with the detent. The arm 106 to which the latch lever 110 is connected is thusrfree to swing downwardly (or counterclockwise, as seen in Figs..3 and 1l) about the pin 100 into parallel'relation with the arm 98 with the result that this arm again presses the button 109 of the switch 108 to reopen the switch for a succeeding strip attaching cycle, of theemachine. vDownward swinging movement of thearms 98 and 106 is limited by a pin 153 (Fig. 4) extending from the bracket 102.

For severing the strip at the end of an attaching cycle, the machine is provided with a knife 154 (Figs. l and 12) movable transversely of the insole between the strip guide 85 and the presser and feed foot 32. The knife is adjustably secured to a carrier 156 which is connected by a rod 158, a bell crank 160 and a rod 162 to the-core 164 of va solenoid 166 housed in the base 20 of the niachine. The solenoid may be energized by a manually operatedmicroswitch 168 actuated by a rod 170 connected by a rod 172 to a knee pad 174. However, inV

accordance with a feature of the present invention, the solenoid 166 may alternatively be energized automatically bythe rnicroswitch 108 which, as previously explained, is closed by movement of the finger 86 off the rib portion of the strip attached to the insole to stop the feeding'Y mechanism at a predetermined point in an attaching Vthe lever 66 which controls the operation of the presser and feed fot 32 so that, with the lever 66 in the position of Fig.Y 1, the switch 176 is maintained open. When the treadle is depressed to start an attaching cycle and the lever 66 turns clockwise, as seen in Fig. 2, the microswitch 176 is closed for a purpose which will appear as the description proceeds. A torsion spring mounted orrthe pin 184 and bearing at one end against the under- Jsurface of the rnicroswitch 176 and at its other end ferator to connect the ,solenoid 166 to either the automatic control circuit for automatic operation of the knife or to the microswitch 168 for manual operation. It will VVbe understood that the latter will be used only as an 7 auxiliary means in case of failure of the automatic mechanism. l

Operation of the means for automatically stopping the strip attaching and feeding mechanism at a predetermined point in a machine cycle and for operating the knife to sever the strip will now be described, with particular reference to the wiring diagram in Fig. 13. In this description it will be assumed that the machine is at rest and that the selector switch 192 has been turned to the Automatic position to permit connection of the severing knife operating solenoid 166 to the power line marked A.

With the electric motor running and an insole having been placed on the table 28 (as shown in Fig. 2) and located in proper position for a strip Vattaching operation by means of an edge gage 194 (Fig. 12), when the operator depresses the treadle to engage the clutch, the lever 66 turns clockwise, as seen in Fig. 2, and the microswitch 176 which, as previously explained, is normally held open by engagement of the lever with the roll 188, is closed.

When the attaching operation reaches the shank portion of the insole at the side opposite that at which the attaching began, the finger 86 moves up onto the rib portion of the strip, and continues in engagement with it as the attaching operation progresses rearwardly toward the heel end of the insole. During that time the microswitch 108 is held open byv engagement of the finger arm 98 with the microswitch button 109 since, as previously explained, the two arms 98 and 106 swing upwardly in unison and the microswitch arm 106 is held in elevated position by the latch lever 110. When the attaching operation reaches a point at the heel breast line substantially in transverse alinement with the starting point and the finger 86 drops olf the rib portion of the attached strip, the microswitch 108 is closed.

Closing of the microswitch 108 energizes a relay K1 (Fig. 13), closing normally open contacts Kl-A and Kl-B and opening contacts Kl-C. The closure of contacts Kl-A completes a pair of holding circuits for the relay K1, one of said circuits including the microswitch 176 and the other circuit including the normally closed contacts TD2-B. The opening of contacts Kl-C prevents the establishment at this time of a circuit through the knife operating solenoid 166.

The closure of contacts Kl-B energizes the solenoid 130 by which the rod 118 is moved first to disengage the latch lever 110 by which the microswitch arm 106 was locked in its raised position, whereupon the arm 106 drops and the button 109 of the switch engages the finger arm 98 to open the microswitch.

Immediately after releasing the latch lever 110 the rod 113 disengages the upper treadle rod section 74 from the lower section 76, whereupon the lever 66 moves back to its inoperative position, opening the microswitch 176. The relay K1 is not de-energized at this instant because of the holding circuit through the contacts Kl-A referred to above. Y

Simultaneously with the energizing of the solenoid 130 by closure of the contacts Kl-B a relay TD1 is energized through these same contacts. This relay is aV time delay relay in which the contacts controlled thereby are immediately operated by energization of the relay, but return to their normal positions only after a predetermined time following de-energization of the relay. Thus, upon energization of the relay TD1 contacts TD1-A immediately closeand contacts TD1-B immediately open. The closure of contacts TDll-A completes a circuit through a second time delay relay TD2. Energization of the relay TD2 opens contacts TD2-B, so that both holding circuits through the relay K1 are de-energized and accordingly the relay K1 is de-energized, whereupon its contacts Kl-C again close. No circuit, however, is completed at this time through the solenoid 166 because contacts TD1-B have opened. Energzation of relay TD2 causes immediate closure of contacts TD2-A.

The circuits through the relays TD1 and TD2 are interrupted as soon as contacts Kl-B are open by reason of the de-energization of the relay K1. The contacts TD1-B of the'relay TD1 now move to closed position, but only after a predetermined time delay, so that the solenoid 166 by which the knife is operated is not energized until the pressure and feed foot has had time to get out of the way of the knife, thereby to prevent possible damage thereto. The contacts TD2-A of the time delay relay TD2 are arranged to open shortly after contacts TD1-B have been closed, thereby to interrupt the circuit through the solenoid 166, immediately after operation of the knife to sever the rib. This completes a cycle of operations of the machine and the parts are all in the positions shown in Figs. 1 and 13. It will be understood that the time delay periods of the relays TD1 and TD2 are very short and that the entire cycle of operations, following closure of the switch 108, is completed very rapidly.

If for any reason the automatic system of Fig. 13 should fail, the operator may turn the selector switch 192 to the Manual position, whereupon the knife operating solenoid 166 may be operated by pressing on the knee pad 174 to close the microswitch 168.

Having thus described our invention what we claim as new and desire to secure by Letters Patent of the United States is:

l. A machine for attaching ribbed strips to insoles to provide sewing ribs thereon having, in combination, means for progressively feeding a strip having a rib portion into engagement with the margin of an insole, pressing the strip at successive points against the insole to attach it thereto and feeding the combined insole and attached strip, means for severing the strip at the end of an attaching operation, a linger engageable with the rib portion of the strip, and means controlled by said finger for automatically stopping the operation of said feeding and attaching Vmeans and for causing operation of said severing means to sever the attached strip at a predetermined point along the margin of the insole.

2. A machine for attaching ribbed strips to insoles to provide sewing ribs thereon having, in combination, means` for progressively feeding a strip having a rib portion into engagement with the margin of an insole, pressing Vthe strip at successive points against the insole to attach it thereto and feeding the combined insole and attached strip, means for severing the strip at the end of an attaching operation, a linger arranged to engage the rib portion of `the strip lirst attached along one side of the insole margin as the attachment of the strip progresses along the opposite side thereof, and means actuated by disengagement of said finger from, the rib portion of the strip for automatically stopping the operation of the feeding and attaching means and for causing operation of said severing means to sever the attached strip substantially at a point on the insole determined by the location of the starting end of the strip.

3. A machine for attaching ribbed strips to insoles to provide sewing ribs thereon having, in combination, means for progressively feeding a strip having a rib portion into engagementwith the margin of an insole pressing the strip at successive points against the insole to attach it thereto and feeding the combined insole and attached strip, means for severing the strip at the end of an attaching operation, a finger arranged to engage the top of the rib portion of the strip first attached along one side of the insole margin as the attachment of the strip progresses along the opposite side thereof, and means actuated by disengagement of said finger from the rib portion of the strip for automatically stopping the operation of the feeding and attaching means and for causing operation of said severing means when the attaching operation reaches a point along said opposite side of the insole margin located substantially in transverse alinement with the point where the strip was first attached.

4. A machine for attaching ribbed strips to insoles to provide sewing ribs thereon having, in combination, means for progressively feeding a strip having a rib portion into engagement with the margin of an insole, pressing the strip at successive points against the insole to attach it thereto and feeding the combined insole and attached strip, means for severing the strip at the end of an attaching operation, a finger engageable with the rib portion of the strip first attached along one side of the insole margin as the attaching operation progresses along the opposite side thereof, and means actuated by disengagement of said finger from the rib portion of the strip for automatically operating said severing means to sever the strip at a predetermined point along said opposite side of the insole margin.

5. A machine for attaching ribbed strips to insoles to provide sewing ribs thereon having, in combination, means for progressively feeding a strip having a rib portion into engagement with the margin of an insole, pressing the strip at successive points against the insole to attach it thereto and feeding the combined insole and attached strip, means for severing the strip at the end of an attaching operation, a finger engageable with the rib portion of the strip first attached along one side of the insole margin as the attaching operation progresses along the opposite side thereof, and means actuated by disengagementof said finger from the rib portion of the strip for automatically operating said severing means to sever the strip substantially at a point along said opposite side of the insole margin determined by the location of the starting end of the strip.

6. A machine for attaching ribbed strips to insoles to provide sewing ribs thereon having, in combination, means for progressively feeding a strip having a rib portion into engagement with the margin of an insole, pressing the strip at successive points against the insole to attach it thereto and feeding the combined insole and attached strip, means for severing the strip at the end of an attaching operation, a finger engageable with the rib portion of the strip first attached along one side of the insole margin, and means actuated by disengagement of said finger from the rib portion of the strip for automatically operating said severaing means to sever the strip when the attaching operation reaches a point along said opposite side of the insole margin located substantially in transverse alinement with the point where the strip was rst attached.

7. A machine for attaching ribbed strips to insoles to provide sewing ribs thereon having, in combination, means for progressively feeding a strip having a rib portion into engagement with the margin of an insole, pressing the strip at successive points against the insole to attach it thereto, and feeding the combined insole and attached strip, means controlling the operative movement of said feeding and attaching means, a linger adapted to engage the rib portion of the strip, an arm carrying said finger, a second arm arranged in parallel relation to said finger arm and carrying a switch normally held open by engagement with said finger arm, said arms being movable in unison about a common axis in one direction by movement of the finger into engagement with the rib portion of the strip to maintain the switch open and relatively to each other when the finger moves out of engagement with the rib portion to close said switch, a solenoid energized by closure of said switch to stop the operation of the strip feeding and attaching means at a point along the margin of the insole determined by the end of the strip first attached to the insole, a knife for severing the strip, and a solenoid connected to said knife and energized by closure of said switch to sever the strip at the point where the strip was last attached to the insole.

8. A machine for attaching ribbed strips to insoles to provide sewing ribs thereon having, in combination, means for progressively feeding a strip having -a rib portion into engagement with the margin of an insole, pressing the strip at successive points against the insole to attach it thereto iand feeding the combined insole and attached strip, means for severing the strip at the end of an attaching operation, a linger engageable with the rib portion of the strip first attached along one side of the insole margin as the attaching operation progresses along the opposite side thereof, a switch closed by disengagement of said finger from the rib portion of the strip when the attaching operation reaches a predetermined point along said opposite side of the insole margin, a first solenoid energized by closure of said switch to cause the pressing and feeding means to be moved to inoperative position, a second solenoid connected to the severing means and energized upon movement of the pressing and feeding means to said inoperative position to operate the severing means, an electric circuit, and a relay in said circuit for causing the energzation of said second solenoid to occur after the pressing and feeding means has been rendered inoperative, thereby to guard against interference between the severing means and the pressing and feeding means.

9. A machine for attaching ribbed strips to insoles to provide sewing ribs thereon having, in combination, means for progressively feeding a strip having a rib portion into engagement with the margin of an insole, pressing the strip at successive points against the insole to attach it thereto and feeding the combined insole and attached strip, means for severing the strip at the end of an attaching operation, a finger engageable with the rib portion of the strip attached along one side of the insole margin as the attaching operation progresses along the opposite side thereof, means actuated by disengagementv of said finger from the rib portion at a predetermined point along said opposite side of the insole margin to cause the pressing and feeding means to be moved to inoperative position, a solenoid connected to the severing means and actuated by movement of the pressing and feeding means to said inoperative position to operate said severing means automatically, and auxiliary manually operated means for causing said solenoid to be actuated t0 operate the severing means in the event of failure of the automatlc means.

References Cited in the file of this patent UNITED STATES PATENTS 2,670,480 Clark Mar. 2, 1954 FOREIGN PATENTS 18,005 Germany -7.-- Dec. 6, 1956

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