US1210054A - Forepart-turning machine. - Google Patents

Description

A. EPPLER.

FOREPART TURNING MACHINE.

APPLICATION FILED 1An.27, 191s.

LQTLQGM. Patented Dec. 26,1916.

3 SHEETS-SHEET l.

A. EPPL ER.

FOREPART TURNING MACHINE.

APPLICATION FILED JAN.27.1916.

l 1 0,054; Patented Dec. 26, 1916.

3 SHEETS-SHEET 2- M lizaemi; I

A, EPPLER.

FOREPART TURNING MACHINE.

APPLICATION FILED JAN.2T. I916.

1 2 l 0., 0&4 Patented Dec. 26, 1916.

3 SHEETSSHEET 3- ITED STATES PATENT @FFIQE.

ANDREW EPPLER, OE LYNN, MASSACHUSETTS, ASSIGNOR TO UNITED SHOE MACHINERY COMPANY, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

FOREPART-TURNING MACHINE.

Specification of Letters Patent.

Patented Dec. 26,1916.

To all whom it may concern:

Be it known that I, ANDREW EPPLER, a citizen of the United States, residing at Lynn, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Forepart-Turning Machines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others 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 for turning the forepart of a shoe.

Certain classes of turn shoes are provided with a stifiener member to form a box toe and considerable difficulty is experienced in turning these shoes owing to the tendency of the stiffener member to crumple or wrinkle during the turning operation, marring the appearance of the finished shoe.

The. object of the present invention is to provide certain improvements in a forepart turning machine which enable shoes pro vided with box toes to be turned with facility and without wrinkling the stiffener member and displacing it relative to the upper. With this object in view a feature of the invention contemplates the provision in a machine provided with a shoe supporting form and a cooperating turning iron of a member which engages with the toe portion of the upper during the turning operation to retain the stiffening member in place and prevent the latter from wrinkling.

Still further features of the invention consist in certain novel features of construction, combinations and arrangements of priorto the turning operation; Fig. 4 is a view similar to Fig. 3 illustrating the turning iron and upper engaging member in their advanced positions prior to the turning operation; Fig. 5 is a detail illustrating the relative positions of the turning iron and upper engaging member during the turning operation; and Fig. 6 is a cross section upon the line 66 of Fig. 3 looking in the direction of the arrows.

The illustrated embodiment of the invention is preferably shown in connection with a machine of the type shown and described in the patent to Eppler, No. 706,038, August 5, 1902. This machine comprises the usual supporting base '1 having a vertig ally adjustable bracket 3 which carries a rotatable turret 4 havinga series of radially projecting shoe forms 5. The supporting base 1 also carries a turning iron 7 which is mounted upon an arm 8 secured to a supporting shaft 9 rotated in bearings formed in a head 10 to move the turning iron into and out of operative relation to a cooperating shoe supporting form. The turning iron is retained in operative position by a pair of cooperating toothed collars 12 and 13 secured respectively to the shaft 9 and head 10 and normally retained, in engagement by a spring 1 1. The toe of the shoe is clamped against the supporting form in the usual manner by the turning iron 7 and during the turning operation the sole of the shoe is supported by anauxiliary turning iron 15 pivotally supported upon a carrier 16 slidingly mounted upon the turning iron 7 and arranged to be advanced into operative engagement with the shoe sole by a treadle 18 which is connected with the carrier through a bell crank 19 having its opposite arms connected respectively with the treadle through a link 20 and with the carrier through a link 21. The auxiliary turning iron is guided during the in and out movements by a face 25 formed on the turn ing iron 7 and engaged by the rear end of the auxiliary iron 15 which is pivoted upon the iron 7 at 24. The auxiliary turning iron is normally retained in a retracted position, as shown in Fig. 1, by a spring 26 connecting the treadle with the supporting base 1. In operating the machine the shoe to be turned is first placed overa suitable skeleton supporting form 5 and the shaft 9 is then rotated to .swing the turning iron 7 into the position shown in Fig. 3 to clamp the toe of the shoe firmly against the form. The auxiliary turning iron 15 is then advanced into engagement with the under side of the sole at approximately the ball line to support and form a preliminary break in the sole. The operator by then engaging the heel which has been previously turned is enabled toturn the forepart of the shoe from the ball toward the toe, gradually stripping the shoe from the supporting form 5. During this turning operation the treadle is conveniently 'manipulated to permit a gradual retracting movement of the auxiliary turning iron I the shoe to be permanently disfigured.

According to the present invention the'toe portion of the upper containing the stiffening member is stretched firmly over the supporting form and held during the turning operation, effectually preventing any permanent wrinkling of the toe. This is conveni iently accomplished by providing an upper engaging member which engages with and stretches the upper over the support during the turning operation. As the turning operation progresses toward the toe the upper engaging member 1s yieldlngly retracted,

the toe portion of the upper in the meantime turning about the tip of the upper I engaging member which is in contact with v the upper. In the simplest and most efficient vanced withthe auxiliary iron into contact with the toe portion of the upper, after form of the invention which has yet been devised the upper engaging member is embodied in the type of machine above described and is yieldingly connected with the auxiliary turning iron. lVith this construction the upper engaging member is ad- I which the member is retained in yielding engagement with the upper during the con- 6 tinned advancing movement of the auxiliary turning iron. In the machine shown in the drawings an upper engaging member is in-.

.- di cated at 30 and is secured at its rear end a. head 32 slidingly supported upon the carrier '16; The head 32 is yieldingly connected with the carrier 16 by a tension spring 33 and the normal position of the head with relation to the carrier is determined by the engagement of a" shoulder 34: formed upon the carrier with the forward end of the head 32. In the normal position ofthe head the upper engaging member 80 is positioned as shown in Fig. 3 with relation to the auxiliary turning iron. As the auxiliary turning iron is advanced prior to the turning of the shoe the upper engaging member is also carried forward, wiping the toe portion of the upper over the supporting form 5. This advancing movement of the upper engaging member continues until a stop collar 35 engages with the face ofv a bushing 37 threaded in theend of' a recess 36 formed in the arm 8. The stop collar. is i formed upon one end of a rod 38 threadedly connected at its opposite end with thehead 32 and provided with a lock nut 39 to lock the rod in any adjusted position with relation to thehead. WVith thisconstruction'the advanced position of the upper engaging member may be properly determined to retain the member in engagement with-the toe portion of the upper andto permit a continued advancing movement of the auxiliary turning iron into the position shown approximately in Fig. 4. V

In the preferred embodiment of the invention illustrated in the drawings the upper engaging member conveniently com-- prises an arm constructed and arranged to engage with the upper of the shoe at approximately the tip of the toe-and rideup over the toe, wiping the toe portionof the upper across the inclined face A0 of'the supportingform. The arm is sufficiently flexible to permit a spreading movement of the upper engaging member with'rela'tio'nto the turning iron, effectually smoothing out the; toe portion of the upper over the form. During the turning operation proper, the auxiliary turning arm is retracted following thegra dual turning of the shoe toward the toe, the upper engaging member meanwhile remaining substantially in the position shown in" Fig. a through the action of" the spring 33. IVhen the auxiliary turning iron is retracted to a position substantially opposite the upper engaging member the shoulder 34:

contacts with the head 32 causing a; rearward movement of the upper engaging'member with the auxiliary turning iron to,-permit the turning of the'toe portion of the upper.v As the turning operation progresses toward the tip of the toe the upper engag ing member is gradually retracted with the auxiliary turning iron retaining the upper in position on the shoesupporting form.

While it is preferred to employ the specific construction and arrangement of part's'" shown and described, it will be understood that this construction and arrangement? is not essential except so far as specified in the claims, and may be 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 shoe supporting form, a turning iron cooperating with the form and engaging with the toe portion of the shoe during the turning operation, and a member engaging with the outside of the toe portion of the upper and arranged to maintain the up per stretched over the form during the turning operation.

2. A shoe turning machine, having in combination, a shoe supporting form, a turning iron cooperating with the form, an'upper engaging member, and means for moving the upper engaging member into contact with the toe portion of the upper above the form.

3. A shoe turning machine, having in combination, a shoe supporting form, a turning iron cooperating with the form, an auxiliary turning iron, an upper engaging member connected with the auxiliary turning iron, and means for moving the auxiliary turning iron and upper engaging member into contact with the shoe on opposite sides of the form.

4:. A shoe turning machine, having in combination, a shoe supporting form, a turning iron cooperating with the form, an auxiliary turning iron, an upper engaging member, yielding connections between the auxiliary turning iron and upper engaging member, and means for advancing the auxiliary turning iron and upper engaging member into contact with a shoe.

5. A shoe turning machine, having in combination, a shoe supporting form, a turning iron cooperating with the form, a carrier slidingly supported upon the iron, an auxiliary turning iron mounted upon the carrier, an upper engaging member supported upon the carrier, yielding connections between the carrier and upper engaging member, means for limiting the advancing movement of the upper engaging member, and means for advancing the carrier.

6. A shoe turning machine, having in combination, a shoe supporting form, a cooperating turning iron, an upper engaging member, and actuating means for causing the member to first engage with the tip of the toe and wipe the toe portion of the upper over the shoe supporting form.

7. A shoe turning machine, having in combination, a shOe supporting form, a cooperating turning iron, an auxiliary turning iron, an upper engaging member, connections between the auxiliary turning iron and the upper engaging member, and means for advancing the auxiliary turning iron and upper engaging member into engagement with the shoe upon opposite sides of the shoe supporting form.

ANDREW EPPLER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Iatente,

Washington, D. G.

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