the present invention may be embodied in a shoe upper conforming machine such as that shown in u . s . application ser . no . 459 , 693 , filed apr . 10 , 1974 . the machine described therein is adapted for simultaneously lasting opposite side portions of shoes which comprises an arrangement of shoe supporting means , shoe length sensing means , shoe positioning and clamping means , and a pair of lasting rolls . the shoe supporting means comprises a jack post 10 , only a portion of which is shown in fig1 which carries a last pin 8 upstanding from a block 9 supported ( with capacity for some movement extending transversely in the machine ) upon a head portion of the jack post 10 . the jack post 10 is mounted for swinging movement about a transverse axis upon a carriage and also for rising and falling movements relatively to the carriage , the carriage not being shown . the carriage is movable , in a direction extending lengthwise of a shoe assembly mounted upon the shoe supporting means , relatively to an arrangement of lasting rolls , one of which is shown in fig4 and to an arrangement of nozzle members having adhesive applying means . the machine also has means for swinging the jack post about said transversely extending axis and for raising and lowering the jack post , to move the jack post from a shoe loading position to an operative position in which a heel seat portion of the shoe is located against a hold - down member 12 carried by the carriage . the adhesive applying means of the illustrative machine comprises a pair of nozzle members 20 each for operating at opposite sides of the shoe assembly and extending from lower end portions of a pair of nozzle carriers 22 . upper end portions of each of the nozzle carriers 22 are pivoted on studs 24 extending from forward end portions of a pair of nozzle supporting arms 26 , only one being shown . the nozzle supporting arms 26 are substantially l - shaped , as shown in fig1 . the nozzle supporting arms 26 are pivoted for swinging movements about a cross shaft 28 which is carried by frame portions of the machine . pivotal movement of the nozzle supporting arms 26 about the cross shaft 28 permits the nozzle members 20 to rise and fall heightwise with respect to the general plane of the bottom of a shoe carried by the shoe support , while pivotal movement of the nozzle carriers 22 about the axes of the studs 24 permits the nozzle members 20 to move widthwise with respect to the shoe bottom . because of the remoteness of the nozzle members 20 from the axis of the cross shaft 28 , the rising and falling movements of the outlet end portions of the nozzle members 20 take place on generally linear heightwise paths . similarly , because of the length of the nozzle carriers 22 , pivotal movement about the pivot studs 24 also permits generally linear widthwise movement of the outlet end portions of the nozzle members 20 . the arrangement just described also permits each of the nozzle members 20 to be suspended above the shoe assembly being operated upon and moved between the retracted , inoperative positions and operative positions without interfering with other operative portions of the machine . each nozzle supporting arm 26 is acted upon by a first piston and cylinder arrangement 30 for imparting rising and falling movements of the nozzle members 20 , and for largely counterbalancing the weight of the nozzle members 20 and associated parts while the nozzle members 20 are operating to apply adhesive along the marginal portions of the shoe bottom . each piston and cylinder arrangement 30 ( one for each arm 26 ) comprises a cylinder 32 as shown in fig1 supported by a frame portion 34 of the machine . the cylinder 32 contains a slidably mounted piston 36 from which extends a piston rod 38 . a rearward end of the piston rod 38 bears against a hardened plate 40 on the associated nozzle supporting arm 26 . each nozzle supporting arm 26 has an upstanding bracket 50 , as shown in fig1 and 3 , on which a second piston and cylinder arrangement 52 is mounted for imparting movements to the nozzle member 20 outwardly widthwise of the shoe assembly . the piston and cylinder 52 comprises a cylinder 54 in which is slidably mounted a piston ( not shown ) from which extends a piston rod 58 . a head portion 60 of the piston rod 58 is arranged to abut against a pin 62 extending between lugs of a bifurcated outer end portion of one arm 64 of a bell crank lever 65 . a second arm 66 which extends forwardly , is shown in fig1 and 3 . the bell crank lever arms , 64 , 66 , are pivoted on studs 68 upstanding from each of the nozzle supporting arms 26 . each of the nozzle carriers 22 has a pin 70 extending from a boss 72 , as shown in fig1 and 2 , and is coupled with the forwardly extending arm 66 of the associated bell crank lever 65 by a connecting pin 78 slidable in the arm 66 supported within a bracket 80 . when air under pressure is admitted to rearward end portions of the cylinders 54 , each of the piston rods 58 are moved forwardly to cause the head portions 60 to abut against the pins 62 and swing the bell crank lever arms 64 , 66 , in directions to swing the nozzle carriers 22 in such directions as to move the outlet end portions of the nozzle members 20 outwardly away from each other . air pressure applied to the opposite ends of the cylinders 54 will urge the head portions 60 away from the pins 62 so that frictional forces in the piston and cylinder arrangement 52 do not impose additional loads on each of the nozzle members 20 during their shoe bottom edge following movements . each nozzle carrier 22 is provided with a counterweight 150 , as shown in fig2 for biasing their respective nozzle members 22 inwardly , about pivot studs 24 , during the adhesive applying operation . the counterweight 150 being on the left , as shown in fig2 would cause a counterclockwise direction of rotation by nozzle 20 about stud 24 . this direction is also toward the center of the shoe , as shown in the drawing . when pressurized air is supplied to the forward end portions of the cylinders 32 the pistons 36 will travel rearwardly ( as seen in fig1 ) to swing the nozzle supporting arms 26 clockwise about the cross shaft 28 ( as seen in fig1 ) to raise the nozzle members 20 from their operative positions to inoperative positions . when it is desired to move the nozzle members 20 to operative positions the air pressure acting in the cylinders 32 is reduced sufficiently to allow the weight of the parts to swing the nozzle supporting arms 26 in a counterclockwise direction about the cross shaft 28 . the pressure of air admitted to the cylinders 32 under this condition will be sufficient to counterbalance the greater part of the weight of the nozzle members 20 and the associated parts so that the outlet end portions of each of the nozzle members 20 bear little pressure against the shoe bottom . each pin 70 disposed on the nozzle carriers 22 is received within a generally oval shaped bore 74 , as shown in fig1 . the bore 74 extends transversely through a central portion 76 of a connecting pin 78 . the connecting pin 78 is rotatably mounted ( with capacity for endwise movement ) in aligned bores in the associated arm 66 and in an l - shaped bracket 80 which is secured to that arm 66 , again as shown in fig1 . this arrangement permits a floating connection between the arm 66 and the associated pin 70 to allow for the swinging movements of the arms 66 and 64 in one plane and the swinging movement of the pin 70 in another plane substantially at right angles thereto . each nozzle member 20 is generally tubular in form , an upper end of the nozzle 20 being secured in a nozzle block 82 and a lower end being provided with a shoe bottom margin engaging surface 106 and a guide portion 86 depending at an outer side of the surface 106 . each nozzle block 82 is supported by a pair of pins 88 extending from a block 90 of heat insulating material secured , by screws 91 , to a depending portion 92 of the associated nozzle carrier 22 . the nozzle block 82 is heated in order to maintain a thermoplastic adhesive fed to the nozzle member 20 in molten condition . each nozzle block 82 provides a melting device 94 through which extends a spirally disposed passageway 95 leading from an inlet connection 96 , shown in fig1 to a passageway 93 , shown in fig2 through the nozzle block 82 to the nozzle member 20 . the melting device 94 is provided with an electrically heated cartridge 97 , as shown in fig2 for maintaining the melting device at such a temperature that adhesive in the form of rod fed by any convenient means into the inlet connection and may be melted and , as further solid rod is fed into the inlet connection , molten adhesive is extruded through an outlet opening 98 provided in the nozzle member 20 . liquid adhesive , however , may be substituted for the thermoplastic solid type of adhesive . to avoid drooling of adhesive from each of the nozzle members 20 between successive cycles of operation of the machine , there is provided , for each nozzle member 20 , a needle valve 100 , as shown in fig2 which extends through a bore in the associated nozzle block 82 to seat against a seat 101 , as shown in fig4 in the nozzle member 20 at a locality close to the outlet opening 98 . each needle valve 100 is connected with a plunger 102 of a piston and cylinder device 104 which acts to retract the needle valve 100 from its seat 101 during the time when it is desired to apply adhesive to the margin of the bottom of the shoe . each piston and cylinder device 104 is secured to the associated nozzle carrier 22 . a second bracket 130 , as shown in fig1 and 3 , is secured to each bracket 80 which supports a cylinder 132 of a third piston and cylinder arrangement 134 . a piston rod 136 of piston and cylinder arrangement 134 extends widthwise of the machine as shown in fig3 . a head portion 138 is adjustably threaded upon the piston rod 136 , which is arranged to abut against a plunger 140 of a valve 142 secured to a plate 144 . the plate 144 is upstanding from , and secured to , the associated supporting arm 26 . the piston and cylinder arrangement 134 and its associated parts provide stop means , as detailed below , for adjustably limiting the widthwise separating movement of the nozzle members 20 under the action of the piston and cylinder arrangements 52 . during the cycle of operations of the present invention , a shoe assembly , shown in fig4 comprising an upper u and an insole i mounted on a last l will be placed upon the jack post 10 with the last pin 8 engaged in the usual thimble hole of the last l on which the shoe assembly is mounted while the jack post 10 is in its loading position , as shown in fig1 . the jack post 10 will then be swung heelwardly and raised to position the heel seat portion of the insole i against the hold - down member 12 by means fully disclosed in said copending application . a toe engaging member , not shown , by engagement with the toe end portion of the shoe assembly , automatically sets the position of a stop rod , not shown , relative to the carriage in a position in accordance with the length of the shoe to be operated upon . the shoe clamping means comprising heel band and side clamping assemblies , indicated by the letter h in fig1 will be applied to the shoe assembly to hold it firmly in position with the shank portion at least approximately centralized widthwise in the machine . a toe pad 172 supported by the shoe carrier will also be raised into shoe supporting position . the carriage for the shoe supporting means is moved rearwardly and forwardly by means of a pneumatic piston and cylinder arrangement under the control of a hydraulic dash - pot arrangement , not shown . when the jack post 10 is in its loading position the carriage occupies a loading position which is intermediate its fully forward and fully rearward positions . at this time the nozzle members 20 are in their raised , inoperative positions , the pistons 36 being urged to the right , as seen in fig1 by air pressure applied in the cylinders 32 . the nozzle members 20 are also held in their innermost positions , closely adjacent to each other , as a result of the action of the counterweights 150 urging the nozzle carriers 22 in opposite directions about the pivot studs 24 . when the shoe supporting carriage is in its loading position , the nozzle members 20 are located above a portion of the insole in the relatively narrow shank region . at this time , a signal is developed in the control circuit of the machine which brings about a reduction in the pressure of air supplied to the cylinders 32 to allow the nozzle supporting arms 26 to swing downwardly to cause the nozzle members 20 to approach the shoe bottom or insole i . simultaneously , air under pressure is applied to the rearward end portions of the cylinders 52 to cause the piston rods 58 to outstroke and , through the action of the levers 64 , 66 and associated parts , to swing the nozzle carrier outwardly against the action of the counterweights 150 . at this time , air under pressure is applied to the cylinders 132 to extend the piston rods 136 into the positions shown in fig3 . outward swinging movement of the nozzle carriers 22 under the action of the piston and cylinder arrangements 134 is limited by engagement of the head portions 138 with sleeves 143 in which the plungers 140 of the valves 142 slide . as the head portions 138 move into engagement with the sleeves 143 , the plungers 140 are actuated to operate the valves 142 . this removes the air pressure applied to the cylinders 54 to allow springs therein to withdraw the piston rods 58 and hence to remove the head portions 60 from abutting relationship with the pins 62 , so that the counterweights 150 may again be effective to bias the nozzle members 20 inwardly toward the shoe bottom edges . the operation of the valves 142 also acts to remove air pressure supplied to the cylinders 132 . engagement of the head portions 138 with the sleeves 143 is arranged to arrest outward movement of the nozzle members 20 when the guide portions 86 have moved outwardly sufficiently far to clear the edges of the shoe bottom in the comparatively narrow shank region . as may be seen in fig2 shoe bottom margin engaging surfaces 106 of the nozzle members 20 are arranged to extend widthwise of the machine to such an extent , conveniently some 8 mm ., that the stop means provided by the head portions 138 and the sleeves 143 does not require adjustment to ensure that , when the outward movement of the nozzle members 20 is arrested , the guide portions 86 are beyond the opposite edges of the insole but the insole shoe bottom engaging surfaces 106 extend , at least in part , over marginal portions of the shoe bottom so as to prevent the nozzle members 20 dropping completely off the edges of the insole over at least a considerable range of sizes of insole . with the guide portions 86 over the opposite edges of the insole , the nozzle members 20 rest with their insole or shoe bottom engaging surfaces 106 in contact with marginal portions of the insole and the guide portions 86 are biased inwardly , by action of the counterweights 150 , into engagement with the opposite edges of the insole . the air pressure admitted to the cylinders 32 is sufficient to counterbalance the major portion of the weight of the nozzle members 20 and their associated parts so that the nozzle members 20 rest with but light pressure upon the insole i . similarly , the counterweights 150 are selected so that the guide portions 86 rest only lightly against the edges of the shoe bottom so as not to be likely to break those edges down even in relatively thin portions of the insole i . the nozzles 20 having been moved into proper engagement with the insole i , the carriage is then moved rearwardly to a position determined by engagement of a rear end portion of the previously mentioned stop rod with an abutment member of the machine . during such movement of the carriage , the shoe bottom is moved lengthwise relative to the nozzle members 20 while the guide portions 86 are maintained in engagement with the opposite edges of the insole . the exhaustion of air from the cylinders 132 renders the stop means provided by the head portions 138 and the sleeves 143 ineffective so that the nozzle members may move outwardly to the desired extent as the wider portions of the insole i are traversed . when rearward or heelward movement of the carriage is arrested , the shoe assembly will be positioned in the desired position for a typical arrangement of lasting rolls , as indicated by r in fig4 to commence the side lasting operation , adjacent the previously lasted toe portion . at the time when rearward movement of the carriage is arrested , a valve device in the control circuit arrangement is actuated to initiate the feeding of adhesive through outlet openings 98 of the nozzle members as shown in fig2 and 4 . the openings are positioned to permit adhesive to flow under the lasting marginal portions of the upper u as they curl over the insole i toward the previously lasted toe portion . the lasting rolls r are then lowered into operative positions in engagement with the lasting marginal portions of the insole , and forward movement of the carriage is initiated to carry the shoe assembly forwardly to cause the nozzle members 20 to extrude adhesive along the marginal portions of the insole i as they are maintained with the guide portions 86 in engagement with the opposite edges of the insole i , and the lasting rolls r , to wipe marginal portions of the upper u inwardly across the applied adhesive . the lasting operation thus progresses continuously and simultaneously along opposite side portions of the shoe assembly from the previously lasted toe portion to a region in the vicinity of the breast line . movement of the carriage is then arrested and the nozzle members 20 and the lasting rolls r are returned to their inoperative positions . air under pressure is then readmitted to the cylinders 132 to reset the stop means provided by the head portions 138 of the piston rods 136 and the sleeves 143 . the adhesive applying operation may be terminated by any known manner such as a signal derived from the carriage reaching a predetermined position . this signal also causes the upward withdrawal of the nozzle members 20 , resulting from an increase in pressure of the air supplied to the cylinders 32 , the nozzle members 20 being urged inwardly to their initial positions by the action of the counterweights 150 . the signal also acts to terminate the feeding of adhesive to the nozzle members 20 and the closing of the needle valves 100 . the signal also automatically causes the raising of the lasting rolls r at the end of the lasting operation , and the shoe supporting jack post 10 being swung to its initial loading position , while the carriage is moved rearwardly or heelwardly to its loading position . the outlet openings 98 of the nozzle members are directed toward the front of the machine so that they are trailing in the sense of the direction of movement of the shoe assembly past the nozzle members 20 , the shoe assembly moving in the direction of the arrow shown in fig4 . as seen in fig4 the toe end of the shoe points in the direction of movement and the forepart of the bottom of the last l is often inclined ( to an extent depending on the style of shoe and heel height ) to the horizontal . the insole engaging surface 106 of the nozzle members 20 is therefore also inclined to the horizontal at a considerable angle so as to enable the nozzle members 20 to seat on forepart portions of the shoe bottoms of various styles of shoe assembly and maintain the outlet openings 98 of the nozzle members 20 in close proximity to the insoles i . this inclination of the insole engaging surfaces 106 also tends to ensure that when the nozzle members 20 , during their outward movement , reach the opposite edge portions of the insole i , the guide portions 86 drop over the opposite edges of the insole i and may be moved into contact therewith . in fig4 there is also shown in chain dotted lines the positions which a nozzle member 20 occupies with respect to the insole i at progressively later stages in the movement of the shoe assembly past the nozzle member 20 . it is to be understood that the foregoing embodiment is stated as descriptive and exemplary only , and not to be interpreted as limiting the scope of the invention .
a shoe machine having nozzles for applying adhesive progressively to the margin of a shoe bottom , in which the nozzles are moved heightwise to engage a guide of the nozzle with the edge of the shoe bottom maneuvered by an arrangement of piston and cylinder members , and a sensing device associated with a stop mechanism for control and guidance to enable the nozzles to follow the marginal contour of the shoe bottom to apply adhesive thereto , and thence to return the nozzles to their start position to begin another cycle .