US1310008A - Planooraph co - Google Patents

Description

.E. ERICKSON.

SHOE TURNING MACHINE.

'APPLICATION FILED AUG.23, 1911.

Patented July 15, 1919.

9 SHEETS-SHEET 1 Even?" y L 45m Q24 7 Wimess E. ERICKSON.

SHOE TURNING MACHINE.

APPLICATION r1150 AUG-23. 1911.

Patented July 15, 1919.

SHEETS-SHEET 2.

h l v h k i111 uinwwh nul 11 THE coLUMBIA Pumnnmum cO-. WASHINGTON, D. C.

,ERICKSON. SHOE TURNING MACHINE. APPLICATION FILED AUG-23' I911- 1 ,310,QO8. PatentedJuly 15, 1919.

THE COLUMBIA PLANOGRAPI! cm. WASHINGTON, D. c.

Patented July 15, 1919.

E. ERICKSON.

SHOE TURNING MACHINE. APPLICATION FILED AUG. 23'. ran.

E. EBICKSON.

SHOE TURNING MACHINE. --APPLICATION FILED ausrza. 1917.

Pdtented July 15, 191

9 SHEETS-SHEET 5 MMN QE NN 'lH B COLUMBIA- PLANOORAPH CO WHEN, D- C- E. ERICKSON.

SHOE TURNING MACHINE. APPLICATION FILED AUG-23.19l7.

Patented July 15, 1919.

9 SHEETS-SHEET 6 C n N O T a m H m w o c n P A R a O N A L P m B m U L O c m n E. ERICKSON.

SHOE TURNING MACHINE.

APPLICATION HLED Aus.2a. 1911.

Patented July 15, 1919.

9 SHEET$-SHEET7 THE COLUMBIA PLANOCIRAPH 50., WASHINGTON, D. c.

E. ERICKSON.

SHOE TURNING MACHINE.

.APPLICATION FILED AUG.'23. I917.

Patented July 15, 191 9.

9 SHEETS-SHEET 8- rm! COLUMBIA PLANoaRAPH co., WASHINGTON. n c.

E ERICKSON.

SHOE TURNING MACHINE.

APPLICAIION FILED AUG.23. 1917.

1 ,3 10,008. Patented July 15, 1919.

9 SHEETS-SHEET 9.

ms COLUMBIA PLANOGRAPH cm. WASHINGTON. D. c.

marine engine PATENT onnion- EDWARD ERICKSON, 0F BEVERLY, MASSACHUSETTS, ASSIGNOR, BY MESNE ASSIGN- MENTS, TO UNITED SHOE MACHINERY CORPORATION, OF PATERSON. NEW JERSEY, A CORPORATION OF NEW JERSEY.

SHOE-TURNING MACHINE.

Application filed August 23, 1917.

To all whom it may concern:

Be it known that I, EDWARD ERioKsoN, a citizen of the United States, residing at Beverly, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Shoe-Turning Machines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable other skilled in the art to which it appertains to make and use the same.

The present invention relates to shoe turning machines and more particularly to machines of this type in which the forepart of the shoe is turned by power actuated instrumentalities.

Machines have been provided for turning the forepart of a shoe by power to relieve the operator of the strain incident to hand turning, and in addition to expedite the turning operation. The turning of the forepart in this manner, however, presents many obstacles as it is exceedingly diflicult' to properly turn all classes of shoes and at the same time insure against breaking the upper and sole or otherwise damaging the shoe during the turning operation.

It is an object of the present invention to provide an improved form of shoe turning machine which successfully accomplishes the turning of the forepart by power actuated mechanism while at the same time reducing to a minimum the liability of damaging the upper or sole of the shoe. v

Vith this objectin viewa feature of the invention contemplatesthe provision of a support about which the sole of the shoe is bent, an upper spreader projecting within the shoe, a turning iron engaging with the toe portion of the shoe, and actuating mechanism for the turning iron and sole support constructed and arranged to advance the iron at twice the speed of the sole support to turn the shoe by a pressure exerted upon the toe portion of the shoe. In addition the present invention contemplates an automatic control of the turning instrumentalities in accordance with the length of the shoe, which is accomplished by providing mechanism for advancing the sole support at a less speed than the turning iron, operative upon engagement of the turning iron with the toe portion of the shee. Accordingto Specification of Letters Patent.

Patented Jilly 15, 1919.

Serial No. 187,845.

this construction the forepart of the shoe is turned by a pressure exerted upon the toe portion of the sole, the .sole support merely acting as a follower to prevent buckling of the sole during the turning operation.

A further feature of the invention con sists in the combination with means for clamping the heel seat of'the shoe, of a sole support and a cooperating upper support engaging, respectively, with the shoe upon opposite sides of the sole to prevent buckling of the sole, and a turning member engaging with the toe portion of the shoe and movable transversely across the heel seat clamping means to turn the forepart of the shoe by a pressure exerted upon the toe.

A still further feature of the invention contemplates the provision in a machine for turning both the forepart and heel part of a shoe, of means for initially turning the heel part of the shoe and thereafter clamping the shoe at the heel seat, and means for turning the forepart of the shoe while the latter is clamped at the heel seat, having a path of movement in a plane substantially at right angles to the plane of the heel seat to reduce the strain upon the sole when turning the forepart.

Still further features of the invention consist in certain novel features of construction, combinations and arrangements of parts hereinafter described and claimed, the advantages of which will be obvious to those skilled in the art from the following description. 4

In the accompanying drawings illustrating the preferred form of the invention, Figure 1 represents a side elevation of a machine embodying the several features of the invention; Fig. 2 is a top plan view of the head of. the machine shown in Fig. 1; Fig. 3 is a detail showing a section in elevation upon the line 33 of Fig. 2 and illustrating a portion of the mechanism for operating the shoe support and turning iron; Fig. 4 is a detail illustrating a top plan view, partly in section, of the mechanism shown in Fig. 3; Fig. 5 is a detail showing a section of the shoe support and turning iron superimposed upon one another Fig. 6 is a detail showing a plan view of the parts illustrated in Fig. 5; Fig. 7 is detail illustrating a plan View" of a portion of the mechanism for operatively connecting the turning iron and shoe support; Fig. 8 is a cross section upon the line 8-8 of Fig. 2; Fig. 9 is a section upon the line 9-9 of Fig. 8, showing the clutch for connecting the sole support to the operating mechanism; Fig. 10 is a section in elevation upon the line 1010 of Fig. 7, illustrating a portion of the mechanism for driving the turning iron and sole support; Fig. 11 is a section upon the line 11-11 of Fig. 7; Fig. 12 is a detail showing the spring casing; Fig. 13 is a detail showing a cross section upon the line 13 of Fig. 8, showing the spring for returning the turning iron to initial position; Fig. 14 is a section in elevation upon the line 1414 of Fig. 2 illustrating the starting and stopping mechanism for the machine; Fig. 15 is a detail partly in sec tion upon the line 15 of Fig. 16, illustrating the heel cups and supporting turret; Fig. 16 is a section of the turret taken upon the-line 16 of Fig. 15; Fig. 17 illustrates the turret and complemental heel turning members; Fig. 18 is a detail showing the same mechanism taken upon the line 18-18 or" Fig. 17 Fig. 19 is a detail of the turret locking mechanism taken upon the line 1919 of Fig. 17; Figs. 20 to 22, inclusive, are partial diagrammatic views illustrating the relative position of the various instrumentalities during the turning of the forepart; Fig. 23 is a cross section of the :Eorepart spreader taken upon the line 23 of Fig. 21; and Fig. 24 is 21;. top plan view of the forepart spreader.

The machine shown in the illustrated embodiment of the invention comprises co6perating heel turning members which are initially actuated to turn the heel part of a shoe and are then locked in position to clamp the heel seat of the shoe during the turning of the forepart. The machine is mounted upon a standard 30 having a head 31 upon which an arm 33 is fulcrumed at 34. The arm 33 supports a turret 36 carrying a plurality of difi'erent sized heel cups 38, as shown clearly in Figs. 15 and 16 of the drawings. The turret 36 may be rotated to bring any one of the heel cups into cooperative relation with the corresponding heel turning member and to this end it is journaled upon a hub 40 formed upon the end of the supporting arm 33. The turrot is locked in adjusted position with one of the heel cups in alinement with the corresponding turning member through a detent pin 42 slidingly supported in a recess formed in the turret and normally main tained in engagement with one of a plu-- rality of recesses 43 through a spring 44. The recesses 43 are formed in a stationary plate 45 secured to the end of the hub 40 and serving to retain the turret 36 upon the hub.

Each heel cup is detachably connected tothe turret through a dove tailed tongue 46 formed upon the base of the heel cup and adapted to be inserted in a correspondingly shaped groove 47 formed in the turret, a set screw 48 threadedly mounted in the base of the heel cup servin to clamp the latter to the turret when the cup has been properly located.

A series of heel turning members 50 are mounted upon a turret 51 journaled for rotation in a horizontal plane upon the head 31. It will be noted from an inspection of Figs. 17 and 18 that each heel turning member is detachably secured in the outer end of an arm 52 projecting radially from the turret. The turret is locked in position with one of the heel turning members in operative relation to the corresponding heel cup through a latch dog 54 fulcrumed at 55 upon a portion of the head 31 and adapted to en gage with one of a series of recesses 56 formed in the periphery of a ring 57 connected to the turret 51. It is desirable in this class of apparatus that the heel part turning member shall have provision for a lateral yielding movement to prevent an undue binding of the upper upon the heel cup during the turning operation if the lining of the upper becomes bunched between the turning member and the edge of the heel cup. To this end the turret 51 is yieldingly connected with the plate 57 through a pair of springs 60 which are interposed between opposite sides of a lug 61 secured to the plate and plugs 62 threaded in the turret 5 1, as shown in Figs. 17 and 18.

With this construction each heel turning member is normally retained in alinement with the corresponding heel cup but has provision for lateral yielding movement during the turning operation.

The turning of the heel part of the shoe is accomplished by moving the heel cup with a shoe supported thereon toward the stationary turning member in a direction to cause the turning member to first engage with the heel seat of the shoe sole and to then enter the heel cup, carrying the sole therewith and turning the upper over the edges of the heel cup and the antifriction roll 63 carried thereby. The movement of the heel cup to turn the shoe upper is accomplished by swinging the turret and heel cup bodily about the fulcrum 34 of the support ing arm 33. The opposite end of the arm 33, which carries the turret, is accordingly connected to a treadle rod 65 pivoted to a treadle 66 at its lower end. With this construction a depression of the treadle swings the turret about the center 34, moving the heel cup toward the corresponding heel turning member until the cup finally assumes the position shown approximately in Fig. 20 in which the heel part of the shoe has been completely turned and the heel seat of the sole is clamped between the abutment of the cup and the turning member. It will be noted from an inspection of the drawings that the weight of the turret and heel cups normally retains the latter in the position shown in Fig. 1 and that upon releasing the treadle the turret will normally return to this position. In order to cushion the return movements of the turret a compression spring 67 surrounds the treadle rod and is interposed between a guiding lug projecting from the frame and a collar 69 secured to the treadle rod.

After the turning of the heel part has been completed the shoe is clamped with the heel seat lying in'a substantially vertical plane. as shown in Fig. 20, and with the forepart of the shoe extending upwardly in convenient position for the operation of the forepart turning instrumentalities. According to the present invention the means for turning the forepart comprises an upper spreader which projects within the shoe at the forepart, a support about which the sole is bent, and which supports and prevents buckling of the sole during the turning operation, and a turning iron which is constructed and arranged to engage with the toe portion of the sole and accomplish the turning operation by a pressure exerted upon the toe. After the sole has been preliminarily bent about the sole support the upper spreader is then inserted within the forepart of the shoe and power actuated mechanism is started to cause an advancing movement of the turning member to take lace. When the turning member engages with the toe portion of the sole, mechanism is automatically rendered operative for advancing the sole support in the same direction at a slower rate of speed. As the turning member gradually forces the toe portion of theshoe back toward the shank, the sole bends about the sole support which is likewise advancing at one half the speed and the upper spreader recedes, following the turning member. After the sole is in the position shown approximately in Fig. 20 it is bent at right angles over a sole support 75 which is located, as shown in the drawings, with the outer end extending approximately into contact with the sole. An upper spreader 77 is then inserted within the forepart of the shoe, as shown in Fig. 21, to maintain the forepart distended and in addition to bend the sole transversely about the sole support. The spreader, as shown clearly in Figs. 23 and 24 of the drawings. consists of a pair of resilient fingers 7 8 having curved faces which engage with opposite sides of the upper as shown in Fig. 23. The fingers are secured at one end to a. carrier 80 which is provided with a handle 81 to permit of its convenient manipulation by the operator.

Iii-order to-vary the efiiective' width of the upper spreader a spacing member 82 is received between converging edges 83 of the fingers 78 and is adapted to be adjusted lengthwise of the spreader to separate the fingers to a greater or less degree. The spacing member 82 is adjustably connected to the carrier through a stud 84 provided with a clamp nut 85 and received in a. lengthwise slot 86 formed in a bracket 87 secured to the carrier, as shown in Figs. 22 and 24:. The upper spreader is manually inserted within the forepart prior to the turning of this portion of the shoe and is arranged to recede as the turning of the forepart progresses. To this end the carrier 80 is supported by a pair of horizontal swinging arms 91 and 88 which are pivoted to one another at 89. The opposite end of the arm 91 is fulerum'ed upon a stationary arm 90 and the outer free end of the arm 88 supports the carrier 80 which is connected thereto through a post 92 and a head 93 secured to the post through a friction joint 94:. The carrier 80 is provided with a stem 95 received in a corresponding recess formed in the head 93 and is locked in place by a pin 96 which is received in corresponding recesses formed in the head and in the stem 95 of the carrier, as shown clearly in Fig. 21. This construction permits the convenient removal of a spreader and replacement by a different form of spreader whenever desired. The stationary arm 90 is supported by a yoke 97 which projects from the head 31 around the turret 36. The stationary arm 90 has provision for vertical adjustment relative to the yoke 97 through a vertical adjusting screw 100 journaled in a head 101 secured to the yoke and threadedly engaging with a post 102 projecting from the arm 90 into the head 101. The above described construction permits the forepart spreader to be freely moved in any direction in a horizontal plane through the provision of the swinging arms 91 and 88 and to be vertically adjusted to vary .the plane of movement through the adjusting screw 100. Furthermore, the angular position of the spreader may be varied by rocking the head 93 about the fulcrum 94, the friction joint retaining the spreader in any position to which it is moved. In order to prevent any possibility of damage to the upper or lining of the shoe when the spreader is inserted therein the tip ends of the fingers 7 8 are provided with beads or flanges 105 which serve to provide rounded surfaces for engagement with the upper. as shown clearly in the drawings.

The turning of the forepart of the shoe is accomplished by power actuated mechanism which is set into operation immediately after the upper spreader has been properly located within the forepart. The first operation of the power actuated mechanism-is to advance the forepart turning iron into engagement with the toe portion of the shoe after which the sole support is automatically connected with the actuating mechanism and both the sole support and turning iron are then advanced to turn the forepart, the sole support moving at half the speed of the turning iron. Owing to this mode of operation the turning of the forepart is accomplished through the pressure exerted by the turning iron upon the toe portion of the sole, the sole support merely acting as a follower or support about which the sole is bent as the turning operation progresses. The actuation of a control lever 110 serves to start the operation of a driving shaft 112 through mechanism to be hereinafter described. The driving shaft 112 reciprocates a slide 114 through the rocker arm 115 fulcrumed at its lower end upon the ma chine frame and having its upper free end connected to the slide through a link 116. The rocker arm is provided with a longi tudinal slot 117 which receives a block 118 connected to the outer end of a crank 119 projecting from the driving shaft 112. This construction provides for a comparativel slow advancing movement of the slide 114 during the turning operation and a quick re turn at the completion of the turning operation. During the rotation of the driving shaft in the direction of the arrow as shown in Fig. 1 the advancing movements of the slide take place when the block 118 is positioned at the top of the slide farthest away from the fulcrum of the arm 115 and the re turn movements take place when the block is at the lowest portion of the slide adjacent the fulcrum. The sole support 7 5 comprises an elongated rod of rectangular cross section which is loosely supported in a corresponding slot formed in the slide 114 and projects outwardly therefrom as shown clearly in Fig. 1. The turning iron 125 is slidingly supported in a slot formed in the upper side of the sole support 75 and is provided with a bracket 127 adapted to be engaged during the advancing movement of the slide 114 by a transversely disposed bar 130 connected to the slide, Thus the initial movement of the slide 114 causes a like movement of the turning iron 125 through the bar 130 and bracket 127 engaged thereby. During this initial movement the support 75 about which the sole is bent remains stationary the slide 114 and the turning iron 125 moving relatively thereto. This advancing movement of the slide and turning iron continues until the iron engages with the toe portion of the bent over shoe sole which resists further advancing movements of the iron. This resistance when the turning iron engages with the toe portion of the sole is utilized to operatively connect the sole support and turning iron with one another so that thereafter both members are advanced. To this end the transverse bar 130 is connected at one end to the slide 114 through a pivot pin 132 and is supported at its opposite end by a plunger 133 retained in engagement with the bar through a spring 134. The bar is provided with an opening 135 through which the sole support passes and having oppositely disposed faces 136 adapted to grip the sides of the sole support when the bar is slightly rocked about the fulcrum. During the initial advancing movements of the slide and turning iron 125 the transverse bar 130 is normally retained in the position shown in Fig. 7 by the plunger 133 but when the turning iron engages with the toe portion of the sole the resistance then encountered is sufficient to rock the transverse bar against the pressure of the spring 134. This rocking of the bar causes the opposed faces 136 to en gage with and grip the sides of the sole sup port, thus connecting the latter to the slide 114.

Mechanism set into operationby the advancing movement of the sole support is provided for advancing the turning iron at twice the speed of the sole support. The sole support 75, as shown clearly in Fig. 8 of the drawings, is provided along one edge with a raised flange 140 having a rack 141 formed thereon. This rack meshes with and drives a small pinion 143 journaled upon a shaft 144 supported at its opposite ends in uprights 145 and 146 projecting upwardly from the head 31 of the machine. A second and larger pinion 148 is also journaled upon. the shaft 144 and meshes with a rack 149 formed upon the upper side of the turning iron 125. The pitch diameter of the larger pinion is twice that of the smaller so that the turning iron is advanced at twice the speed of the sole support. In order to lock the pinions 143 and 148 together a one-direction clutch is interposed between the two pinions and is rendered operative upon the initial advance of the sole support. To this end the pinion 148 is formed as an annular ring having an inner'peripheral face 150 which forms one member of a roll clutch. The pinion 143 is provided with an elongated hub 151 projecting within the space formed by the annular pinion 148 and having a series of cam faces 153 formed thereon. A series of rolls 155 are interposed between the hub 151 and the face 150 of the ring and are positioned to maintain the clutch in an operative or inoperative position by the fingers on a retaining cage 157. The retaining cage is connected to the hub 151 through a spring 159 which normally tends to rotate the cage in a direction to wedge the rolls between the hub and the pinion 148, thus connecting the pinions 143 and 148 together. When the sole support is in its retracted position a shoulder 161 formed upon the sole support is adapted to engage with a correspondingly shaped lug 168 formed upon the periphery of the cage 157, retaining the cage in a clutch disengaging position. Immediately upon the advancing movement of the sole support the shoulder 161 is removed from engagement with the lug 163, permitting the cage to be rotated by the spring 159 and connecting the pinions 143 and 148 together. The turning iron is then advanced by the pinion 148 at twice the speed of the sole support which is locked to the slide 114 through the transverse bar 130. This advancing movement of the two members continues until the forepart of the shoe is completely turned, the turning iron and sole support then assuming substantially the positions shown in Fig. 22, the upper spreader having in the meantime been completely ejected from the upper of the shoe. During the turning operation the sole support rides upon a roll 165 which is j ournaled in the arm 166 secured to the machine frame. In order to prevent the turning iron from rising away from the sole support during the turning operation the outer end of the sole support is provided with a dove-tailed groove 167 which receives a correspondingly shaped block 168 secured to the under side of the turning iron through a fastening 169, as shown clearly in Fig. 5.

It is important that the turning iron shall engage with the toe portion of the shoe sole at the commencement of the turning operation. To this end the outer end of the turn ing iron is provided with a toe engaging finger 170 having an undercut face 171 adapted to project over the toe portionof the shoe when the finger engages therewlth and effectually prevents the toe of the shoe from riding up over the finger. The finger is pivoted to a carrier 172 which is provlded with a shank 17 3 detachably secured in the end of the turning iron 125, as shown clearly in Fig. 5. A spring 175 seated 1n a recess in the finger and engaging with the carrier 172 serves to normally retain the finger in the slightly elevated position shown in Fig. 5. This yielding support for the finger maintains the finger in a position to insure engagement with the toe at the commencement of the turning operation and at the same time permits the finger to be depressed at the completion of the turning operation to avoid punching through the shoe upper. It is believed that the advantages of thls construction will be clearly obvious from an 1nspection of Figs. 21 and 22 of the drawings. By providing a plurality of carriers and at tached fingers o1": dilferent lengths which may be substituted one for another, the machine may be readily adjusted for shoes having foreparts of varying lengths. When the turning iron and shoe support have reached approximately the posltion shown in Fig. 22 at the extreme end of the forepart the slide 114 is returned through the arm 115 and link 116. The return movement of the iron 125 is accomplished by a coiled spring 17 7 secured at its opposite ends to the hub 178 of the pinion 148 and a stationary spring casing 179. As the pinion 148 is rotated during the'advancing movement of the turning iron the spring 177 is wound up. Immediately upon the return movement of the slide 114 and sole support 75 carried thereby the one-direction clutch is disengaged, permitting a rotation of the pinion 148 under the action of the spring. This rotation of the pinion through the rack 149 rapidly returns the iron to its initial position which is determined by the engagement of the bracket 127 with the transverse bar 130. The sole support in the meantime is carried rearwardly with the slide 114 through the frictional engagement between the two, the initial position of the sole sup port being determined by a stop screw 182 which is threaded in a, lug 183 and engages with the rear end of the sole support when in its most retracted position. In order to vary, if so desired, the initial tension upon the sprin 177 the spring casing 179 is provided wit a series of depressions 185 which are engaged by a spring pressed plunger 186. This plunger, as shown clearly in Fig. 8, is slidingly supported in an upright 146 and is normally maintained in engagement with one of the recesses by a spring 187 interposed between a collar 188 secured to the pin and a threaded plug 189. The casing is rotated to secure the desired adjustment of the spring 177 through the provision of a series of sockets 190 formed in the periph cry of the casing which are adapted for the reception of a suitable handle. This construction is clearly illustrated in Fig. 12 of the drawings.

It may be desirable to provide means for positively limiting the point in the advance of the turning iron at which the latter is operatively connected with the sole support. To this end mechanism is provided for retaining the transverse bar 130 in the inoperative position shown in the drawings until a predetermined point in the advancing movement of the turning iron is reached. From an inspection of Figs. 4 and 7 it will be noted that a latch lever 195 is pivoted at 196 to the slide 114 in a position to normally engage behind the free end of the bar 130, as shown in Fig. 7, retaining the bar in an inoperative position. The opposite end of the latch lever 195 is engaged by a spring 197 which normally retains the lever in operative position, as shown in the drawings. During the initial portion of the advancing movement of the slide 114 and the turning iron 125 therewith the lever 195 positively supports the transverse bar 130 against the thrust of the turning iron, preventing a premature connection of the turning iron and sole support. In order to disengage the latch 195 from behind the transverse bar 130 and permit operation of the latter by the turning iron, a stationary cam rib 200 is secured to the side of the upright 145 and is arranged to engage with a roll 201 journaled upon the latch lever to move the lever into an inoperative position. The point at which this disengagement of the latch lever takes place may be readily varied through the provision of lengthwise slots 203 which receive the clamping bolts 204 of the cam rib 200.

It will be noted from an inspection of Figs. 20 to 22, inclusive, that after the heel part of the shoe has been turned the sole is held in an upright position. At the commencement of the forepart turning operation the ball portion of the sole is bent substantially at right angles with the heel seat about the sole support and at the completion of the forepart turning operation the ball portion of the sole is bent approximately at right angles in the opposite direction. In order to properly support the sole during the latter part of the forepart turning operation and prevent damage to the sole where it is bent over the heel cup, a curved plate 206 is secured to the heel cup in position to support the shank portion of the sole.

It is sometimes advisable to stop the machine during the turning of the forepart and to this end the present machine is arranged to cause an advance of the turning instrumentalities while the starting lever is held by the operator and to stop the ad- Vancing movement of the turning instrumentalities immediately upon the release of the starting lever by the operator. The shaft 112 is rotated by a continuously operated shaft 210 having a worm 211 mounted thereon, which is adapted to mesh with a worm gear 212 secured to the shaft 112. The rotation of the shaft 210 is accom plished by a pulley 214- of the usual form mounted upon the outer end of the shaft. The shaft 112 is thrown into and out of operation by bodily moving the worm 21]. into or out of mesh with the driven worm gear 212. The shaft 210 is journaled in a head 216 which is pivoted upon the main casing 215 at 217 and by swinging the head 216 about the fulcrum 217 which lies substantially in the center line of the pulley 214, the Worm 211 may be made to mesh with the worm gear 212 without substantially altering the position of the driving pulley 214. The elevation of the head 216 to mesh the worm with the worm gear is effected by a toggle lever consisting of an arm 218 fulcrumed at 219 on the machine frame and a link 220 connecting the arm with the outer end of the head 216, as shown clearly in Fig. 14 of the drawings. A second arm 221 extends from the fulcrum 219 and is connected to the casing 215 by a spring 222 which serves to normally break the toggle and disengage the worm and Worm gear. This arm is provided With a plunger 223 having a shoulder 224 formed thereon which is engaged by the upper shouldered end of a latch rod 225. The latch rod is pivotally connected at 226 with the control lever 110 and is normally retained in the position shown in Fig. 14 by a spring 227 which connects the latch rod with a lug 228 formed upon the arm 218. As will be noted from an inspection of Fig. 1, the control lever 110 is provided with a curved lower end and the latch rod is connected to the lever between the upright portion and the fulcrum 230 so that when the upper end of the lever is drawn toward an operator standing at the front of the machine that portion of the lever to which the latch rod is connected is depressed, pulling down the latch rod and straightening the toggle. As long as the upper end of the control lever is pulled to the front of the machine the worm and worm gear are held in mesh and the machine contmues to operate. If the control lever should be released, however, at any time during the advancing movement of the turning instrumentalities the spring 222 immediatelv breaks the toggle and through the disengagdment of the worm and worm gear causes the machine to stop. In this position the mach 1ne may again be started by a simple actuatlon of the control lever.

In order to relieve the operator from the control of the machine after the forepart turning operation has been completed mechamsm is provided for disengaging the control lever from the starting and stopping mechanism during the return of the turning lnstrumentalities to initial position. To this end the shaft 112 is provided with a cam 232 which 'actuates a cam lever 233 fulcrumed at 234. The lower end of the cam lever is positioned adjacent the toggle arm 218 in position to engage with a pin 235 slidingly supported in the arm when the lower end of the cam lever is swung to the right. WVhen the latch rod 225 is depressed 115 to straighten the toggle the upper end of the latch rod engages with the plunger 235 sliding it to the left in the toggle lever 218. During the advancing movement of the forepart turning instrumentalities the portion 236 of the cam 232 engages with the cam lever 233. During the return movement of the turning instrumentalities, however, the portion 237 of the cam'engages with the lever, causing the lower end of the lever to rock to the right into engagement with the pin 235. This movement of the lever then slides the pin through the arm 218 into the position shown in Fig. 14, causing the pin to engage with the upper end of the rod and disengage the latch rod from the arm 2.21. During the remainder of the operation the cam lever through its engagement with the plunger 2.35 maintains the toggle straightened. When the turning instrumentalities have been returned to their initial position the cam roll drops off of the portion 237 on to the portion 236 of the cam, permitting the toggle to be broken and disengaging the worm and worm gear. It will be noted that the spring 227 tends to return the latch rod to the position shown in the drawings after the cam lever 233 has released the plunger 235. In order to cushion the disengaging movement of the parts when the toggle lever is broken the member 223 is arranged to act as a buffer, the upper face of the member engaging with a fiXed bar 2-10 extending across the front of the machine. The member 223 is yieldingly supported by a spring 241 received in a recess formed in the arm 221. The turret 36, as stated previously, tends to return to the inoperative position shown in Fig. 1 and it is desirable to provide means for automatically locking the turret in the position shown in Fig. 21 during the turning of the forepart. To this end the arm 33 is provided with a locking arm 250 extending therefrom which is connected with a sliding rod 251. This rod passes loosely through an opening formed in a clamping arm 252 which is normally retained in the position shown in Fig. 1, permitting the rod 251 to slide freely therethrouqh. After the turret has been ele- .vated and the heel part turned the arm 252 is rocked to cause the sides of the opening to grip the rod 251 and is retained in this position during the turning of the forepart. To this end an operating arm 253 is connected to the arm 252, the two arms forming a bell crank lever. The outer end of the arm 253 is normally retained in the position shown in the drawings through the engagement of a cam roll 25%. with a cam face 255 formed upon the end of the arm. hen the machine is started at the commencement of the forepart turning operation the cam roll 25a rides ofi of the cam face 255, permitting a spring 256 to rock the bell crank and cause the gripping arm 252 to clamp the rod 251 in a fixed position. This construction serves to firmly clamp the heel seat of the sole and prevent displacement of the latter during the forepart turn ing operation.

For convenience of description, the member 7 5, about which the sole of the shoe is bent initially, has been referred to as a sole support and the member 125, which engages with the toe end of the shoe, has been referred to as a turning iron. It should be understood, however, that the sole support, so-ca'lled, actually functions in the manner of the usual turning post but, owing to the new and characteristic mode of operation of this machine, is relieved from the disadvantages attendant upon the use of this turning post in prior machines. The terminology used, then, is not to be considered as defining or limiting in any way the function of the member 75 but rather as affording a convenient terminology for distinguishing the members which cooperate to turn the shoe both in the specification and accompanying claims.

While it is preferred to employ the specific construction and arrangement of parts shown and described, it will be understood that this construction and arrangement is not essential except so far as specified in the claims, and maybe changed or modified without departing from the broader features of the invention.

The invention having been described, what is claimed is:

1. A shoe turning machine, having in combination, a support about which the sole is bent, a coiiperating upper support, a turning member engaging with the toe portion of the shoe, and means for relatively actuating the turning member and sole support to cause the turning member to engage with and force the toe portion of the shoe rearwardly and turn the forepart in the opposite direction from the shank toward the toe.

2. A shoe turning machine, having in combination, a support about which the sole is bent, an upper spreader projecting within the shoe, a turning iron engaging with the toe portion of the shoe, and actuating mechanism for the turning iron and sole support constructed and arranged to advance the turning iron at twice the speed of the sole support to turn the shoe by a pressure eX- crted upon the toe.

3. A shoe turning machine, having in combination, a support about which the sole is bent, an upper spreader projecting within the shoe, a turning iron adapted to engage with the toe portion of the shoe, actuating mechanism for the turning iron, and means for automatically connecting the sole support with the actuating mechanism when the turning iron contacts with the toe portion of the shoe.

4. A shoe turning machine, having in combination, a supporting member about which the sole is bent, a cooperating member to maintain the sole in bent-over position, a turning iron, and mechanism for advanc ing both the turning iron'and the sole support constructed and arranged to turn the forepart of the shoe by a pressure exerted upon the toe, the turning operation progressing from the shank toward the toe.

5. A shoe turning machine, having in combination, a sole support, a coiiperating upper support, a turning iron, and actuating mechanism for the turning iron and sole support constructed and arranged to ad Vance the turning iron at twice the speed of the sole support during the turning operation.

6. A shoe turning machine, having in combination, means for clamping the heel portion of a sole, a support about which the sole is bent, a turning iron adapted to engage with the toe portion of the sole, and means for advancing the turning iron and sole support in a plane extending substantially at right angles to the plane of the heel portion of the sole.

7. A shoe turning machine, having in combination, cooperating heel turning members, means for locking the heel turning members to clamp the heel seat of the sole between them, a support about which the sole is bent, a cooperating upper support, a turning iron, and mechanism for actuating the turning iron to turn the forepart of a shoe while the heel seat is clamped between the heel turning members.

8. A shoe turning machine, having in combination, means for clamping the heel seat of a sole in an upright position, a support movable above and transversely of the heel seat and about which the sole is adapted to be bent, a turning iron adapted to engage with the toe portion of the sole and moving parallel with the sole support, and mecha nism for actuating the turning iron to turn the forepart of the shoe.

9. A shoe turning machine, having in combination, a sole support, a cooperating upper support, a turning iron, mechanism for advancing the turning iron, operative connections between the turning iron and sole support adapted to advance the sole support at a lesser speed than the turning iron, and a clutch controlling the connections and adapted to be engaged when the turning iron encounters resistance during the advancing movement.

10. A shoe turning machine, having in combination, a heel cup, a cooperating heel turning member, means for relatively actuating the turning member and cup to turn the heel part of a shoe, means for locking the members in position to clamp the heel seat of the sole between them, means for holding the forepart of the shoe, a turning iron adapted to engage with the toe of the shoe, and means for moving the turning iron transversely of the heel seat to turn the forepart of the shoe.

11. A shoe turning machine, having in combination, means for clamping the heel seat of a sole, means for holding the ball 4 portion of the sole in bent-over position, a turning iron adapted to engage with the toe portion of the sole, and means for actuating the turning iron to force the toe portion of the sole rearwardly' and turn the forepart of the upper.

12. A shoe turning machine, having in combination, a heel turning cup, a normally stationary member adapted to cooperate with the cup to turn the heel part of a shoe,

a pivoted arm supporting the cup, and

means for rocking the arm to move the heel cup relative to the turning member and cause the latter to enter the heel cup and turn the heel portion of a shoe supported thereon 13. A shoe turning machine, having in combination, a turret, a plurality of heel turning members detachably mounted upon the turret, a second turret, a plurality of heel cups detachably mounted thereon, a pivoted arm supporting the second turret, and means for rocking the arm to move one of the heel cups into operative relation with a corresponding turning member and turn the heel part of a shoe supported upon the cup.

14. A shoe turning machine, having in combination, a turret, a plurality of heel turning members detachably mounted upon the turret, a second turret, a plurality of heel cups detachably mounted thereon, a pivoted arm supporting the second turret, means for rocking the arm to move one of the heel cups into operative relation with a corresponding turning member and turn the heel part of a shoe supported upon the cup, and means for locking the heel cup and turning member in position with the heel seat of the sole clamped between them.

15. A shoe turning machine, comprising a turret, a plurality of heel turning members secured thereto, a ring, yielding connections between the turret and ring to permit a lateral yielding movement of a turning member, and means for locking the ring in one of a plurality of positions.

16. A shoe turning machine, comprising a heel turning member, a pivoted arm, a heel cup supported upon the arm, means for rocking the arm to move the heel cup into operative relation with the turning member and turn the heel part of a shoe supported upon the cup, a sliding rod connected with the arm, and means for locking the rod to retain the heel cup and turning member in operative position with the heel seat of the sole clamped between them.

17. A shoe turning machine, having in combination, cooperating members for clamping the heel seat of a sole in an upright position, a support about which the ball portion of the sole is adapted to be bent at approximately right angles to the heel seat, a forepart spreader adapted to be freely manipulated by the operator to permit insertion within the forepart of the upper, a turning iron engaging with the toe portion of a shoe thus held, and means for actuating the turning iron to turn the forepart of the shoe.

18. A shoe turning machine, comprising a head, a forepart spreader detachably mounted upon thehead, and Connections for supporting the head adapted to permit a free l-uovement of the head in any direction in a single plane.

19. A shoe turning machine, having in combination, means for holding the forepart of a shoe including a forepart [spreader member, a turning member adapted, to engage with the toe of the shoe, means for advancing the turning member in a direction lengthwise of. the forepart, and means for supporting the forepart spreader permitting a free movement of the spreader-in any direction in the plane'of movement of the turning member.

20. A shoe turning machine, comprising a forepart spreader and means for supporting the spreader including a pair of pivotally connected swinging arms, and: a head connecting the spreader with one of the arms and having provision for angular adjustment relative to the arm.

21. A shoe turning machine, comprising a forepart spreader, a stationary supporting arm, a pairof horizontal swinging arms pivotally connected at their inner ends and having their outer ends respectively connected with the forepart spreader and the stationary supporting arm, and, means for vertically adjusting the stationary arm.

22. A shoe turning machine, comprising a yoke, a forepart spreader supported upon the outer end of the yoke, coiiperating heel turning members one of which is supported for movement within the yoke, and a fore- Hpart turning member adapted to cooperate with the forepart spreader while; the shoe is positioned by the heel turning members.

23. A shoe turning' 'machine, comprising a sole support, a turning member, mechanism for advancingthe turning member, and means including reduction gearing for conne'cting the sole support with the turning member.

24:. A shoe turning machine, comprising a sole support, a turning member, mechanism for actuating the turning member, reduction gearing for operating the sole support, and means controlled by the advancing movement of the turning member for connecting the reduction gearing to the actuating mechanism.

25. A shoe turning machine, comprising a turning member, actuating mechanism for the turning member including a connection adapted to yield when the turning member encounters resistance during the advancing movement, a sole support, and means for operating the sole support controlled through the yielding connection.

26. A shoe turning machine, comprising a sllde, a turning iron and a sole support mounted upon the slide, a bar supported upon the slide and adapted When in one position to clutch the sole support thereto, connections between the bar and turning iron for advancing, the latter with the slide, and means for yieldingly supporting the bar in: a disengagedposition to permit free movement of the slide and turning iron carried thereby relative to the sole support.

27. A shoe turning machine, comprising a slide, mechanism for actuating the slide, a turning iron and a sole support carried by the slide, and mechanism for initially clutching the turning iron to the slideuntil the latter encounters resistance and for thereafter clutching the sole support to the slide-and operating the turning iron at a greater, rate of speed.

28. A shoe turning machine, comprising a slide, a controlling bar. carried thereby, means for yieldingly retaining the bar in one position, a turning iron adapted to be advanced with the slide through the bar, a sole support, and means, controlled by the movement of the bar into a secondposition whenthe turning iron encounters resistance to clutch the sole support to the slide and actuate the turning iron at a greater speed than: the slide.

29. A shoe turning machine, comprising a, sole support, a turning iron, means for advancing the turning iron and sole support to turn the forepart of a shoe, and independent means forimparting a quick return movement to the turning iron at the completion of. the advancing movement.

30. A shoe turning machine, comprising a slide, mechanism for, actuating the slide to impart, a slow advancing, movement, and a-quick return movement, a turning member and-a sole supporting member carried by the slide, connections between. these two members and the slide to cause the members o eml anced th he lide, nd ndep n ent, means for imparting a' quick return movement to the turning member.

31. A shoe turning machine, comprising a slide, a turning iron and a sole supporting member carried by the slide, a rack connected to each member, a pair of pinions of different sizes meshing with the racks, and means controlled by the sole support for clutching the pinions together to drive the two racks at different rates of speed.

32. A shoe turning machine, comprising a pair of pinions of difierent sizes, a one-direction clutch adapted to connect the two pinions, a turning member and a sole supporting member, a rack connected to each member, and meshing with one of the pinions, and means for permitting engagement of the clutch when the sole supporting member is advanced.

' engaged by the bar when the slide is advanced.

34. A shoe turning machine, comprising a slide, a turning member and a sole supporting member carried thereby, a clutch for connecting the sole supporting member to the slide adapted to be operated when the turning member encounters resistance, and means for retaining the clutch in an inoperative position during a predetermined portion of the advancing movement of the slide.

85. A shoe turning machine, comprising a slide, a turningmember and a sole supporting member carried thereby, a clutch for connecting the sole supporting member to the slide adapted to be operated when the turning member encounters resistance, a latch for positively retaining the clutch in an inoperative position, and means for disengaging the latch at a predetermined point in the advancing movement of the slide.

36. A shoe turning machine, comprising a slide, a turning member and a sole supporting member carried thereby, a clutch for connecting the sole supporting member to the slide adapted to be operated when the turning member encounters resistance, a latch for positively retaining the clutch in an inoperative position, and means for disengaging the latch at a predetermined point ;in the advancing movement of the slide hav- Gopies of this patent may be obtained for five cents each, by addressing the Washington, I). 0-

ing provision for adjustment in the direction of movement of the slide to vary the.

point of disengagement.

37. A shoe turning machlne, comprising a slide, a sole supporting member mounted upon the slide, a turning member mounted upon the sole support, means for advancing the turning member and sole support to turn the forepart of a shoe, and connections between the turning member and sole support to permit relative lengthwise movement of the two members while maintaining the two members against lateral displace ment. j

38. A shoe turning machine, comprising a support over which the sole is adapted to be bent, a turning member adapted to engage with the toe portion of the shoe sole, and a toe engaging finger mounted upon the outer end of the turning member and having an undercut face adapted to project over the toe portion of the shoe which is bent over the sole support.

v 39. A shoe turning machine, comprising a sole support over which the shoe-is bent, a turning member adapted to engage with the toe portion of the shoe, a finger pivotally mounted upon the outer end of the turning member and having an undercut face adapt- EDWARD ERIOKSON.

Commissioner of Patents.

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