US1146295A - Sole-leveling machine. - Google Patents

Description

E; 'E. WINKLEY. SOLE LEVELIIIG MACHINE.

APPLICATION FILED NOV. I4 I9II.

Patented July 13, 1915.

2 SHEETS-SHE I,

IIMHHI I I I I l E E WINKLEY SOLE LEVELING MACHINE.

- APPLICATION FILED NOV. 14, I911. 43959 Patented J 11155 13, 1915,

2 SHEETS-SHEET 2- nnrrnn salaries nrrc.

ERASTUS E. WINKLEY, 0F LYNN, MASSACHUSETTS.

SOLE-LEVELING MACHINE.

a iness.

Specification of Letters Patent.

Patented July re, 1915.

Apphcetion filed. November 14, 1911. Serial No. 660,182.

To all whom it may concern Be it known that I, EnAsTUs E. VVINKLEY, 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 Sole-Leveling 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.

- out detracting from the efticiency of the leveling operation upon the remaining portions of the shoe.

With this object in view, one feature of the invention consists in the provision of a shoe supporting jack, a leveling roll cooperating therewith, and means for retaining the opposite margins of the sole pressed down during the leveling operation.

A further feature of the invention consists in the combination with a leveling roll and shoe sup 'iorting jack, of means secured to the jack and arranged to impart an increased pressure to the shank of the shoe asthe leveling roll passes thereover.

Still further features of the invention con-- sist in certain novel features of construction, combinations and arrangements of parts hereinafter described and claimed, the advantages of which will be apparent to those skilled in the art from the following description. I

In the accompanying drawings illustrating the preferred form of the invention, Figure 1 represents a side elevation partly in sec tion of a shoe supporting jack with the improved device' attached thereto and a lcveling roll cooperating therewith; and Fig. 2 is a section upon the line 22 of Fig. 1 looking in the direction of the arrows. I

The illustrated embodiment of the invention is shown in connection with a leveling machine of the type shown and described in the patent to Winkley, 555,548, dated March 3, 1896. In this type of machine, mechanism is provided for changing the relative longitudinal position and lateral inclination of the leveling roll and jack in order to properly level the sole-of the shoe, as is well known to those skilled in the art, and Y which forms nopart of the present invention. a Considerable difficulty has been experienced in designing a leveling machine which will accommodate a variety of classes of work and with which the requisite transverse curvature at the shank of the shoe can be secured. In the present type of machine, when the roll is inclined laterally to press" down one margin of the shank, it tends to raise the opposite margin ofthe shank and if that margin has beenpreviously" pressed down by the leveling'roll the rounded effect thus secured is partially or wholly lost. In the present invention, this tend enoy is avoided by providing a pad which presses upon opposite margins of the sole simultaneously to force them down and retain them in this position during the entire leveling operation. The pressing pad is operatively connected to the jack and is secured in position upon the sole after the shoe is jacked and prior to the leveling operation.

As the pad exerts a direct pressure upon opposite margins of the sole, it may be considered as an independent device for leve1- ing the shank, which may be used inconjunction with the leveling roll or not, as

desired. As the leveling roll is traversed back and forth over one margin of the shank, an increased pressure is exerted upon that portion of the sole in-addition' to the pressure which is constantly maintained upon the opposite margins of the sole by the pressing pad.

The shoe supporting jack is indicated. at 1 and is provided with the usual-toe post 2 and the last pin 3 toenable the shoe to be properly supported thereon. The jack is secured upon a rock shaft 4:, about which it is oscillated. to move the shoelongitudinally of a leveling roll indicated at 5. The pressing pad is indicated at 10 and is formed of a strip of leather of suitable width passed over the shank of the shoe and connected at its opposite ends to the shoe supporting jack 1. From an inspection of Fig. 1, it will be noted that the pressing pad 10 is of g mes es a less pressure upon the shank than at the ball of the sole. The pressing pad 10 is re intorced longitudinally with a metal plate 11 and transversely with a similar metal plate 12 which enables the pad to retain approximately its true form without being broken by the action of the leveling roll or by the downward pull upon itsopposite ends. The opposite ends of the pad 10 are 'yieldingly connected to a pair of arms 15 which are pivoted at 16 to the jack and as the connections between each arm and the corresponding end of the pad are identical only a single set of connections will be hereinafter described. A clip 17 isri idly se cured to the end of the strap an is provided with a depending ear to which a link 18 is pivotally connected. The link 18 is operatively connected to the arm 15 through a slide 19 and a rod 20 which is pivotally connected to the slide at 21 andto arm 15 at 22. In order to provide a yielding connection between the arm 15 and the strap a spring 23 is interposed between the upper end ofthe slide,19-and a collar 24' secured to therod' 18. Owing to the provision of the pivotal connections between the various elements, the ends of the strap are pulled down and are free to move both longitudinally and laterally upon depressing the arms- 15. The arms 15 project rearwardly from a handle 25 which is conveniently accessible to the operator in order that-they may be manipulated readily to seat the pad 10 upon the shoe. The arms 15 are locked in a depressed position with the pad pressing firmly upon the shank of the shoe by a ratchet toothed segment 26 formed upon the jack and engaged by a spring pressed latch pin 27 slidingly supported upon the handle 25.

After the shoe has been jacked, the press ing pad 10 is seated upon the shoe and the handle 25 is depressed to put the springs 23 under compression and exert a yielding pressure upon opposite margins of the sole. The latch pin 27 then acts automatically to retain the pad in this position, pressing down opposite margins of the sole. [is the leveling roll is traversed back and forth longitudinally of the sole, it is inclined laterally to bear upon opposite margins of the sole successively and after the roll has pressed one margin of the sole down, the pad tains the margin in its depressed position.

Thus as the leveling roll continues to move back and forth over the margin of the sole and presses the same down by small increments, the pad 10 prevents the sole from springing back to its initial position after each passage of the leveling roll there-over, and when the leveling roll is inclined to operate upon the opposite margin of the sole, the pad prevents the raising of the man gin which has been leveled. The under side of the pad is beveled otf slightly-where it projects over the ball line of the shoe so that no mark or impression is formed in the sole at the line where the pad terminates and the roll rides on to the surface of the sole.

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 may be changed or modified without departing from the broader features of the invention.

Having thus described the invention, what is claimed is:

1. A sole leveling machine having, in combination, a shoe supporting jack, a leveling roll cooperating therewith and arranged to engage successively with opposite marginal portions of the shank, a pressure pad bearing upon opposite margins of the shank simultaneously, and means for pressing the pad into engagement with the sole, substantially as described.

2. A sole leveling machine having, in combination, a shoe supporting jack, a leveling roll coiiperating therewith and arranged to engage with opposite margins of the sole successively, a pressure pad extending across the shankand bearing upon opposite margins sin'iultaneously, an actuating member, and yielding connections between each end of the pad and the actuating member, substantially as described.

3. A sole leveling machine having, in combination, a shoe supporting jack, a leveling roll cooperating therewith, and means se cured to the jack and arranged to impart an increased pressure to the shank of the shoe as the leveling roll passes thereover, substantially as described.

4. A. sole leveling machine having, in combination, a jack arranged to support the shoe, means for exerting a direct pressure upon the shank of the shoe, and a leveling roll arranged to supplement theaction of the pressure exerting means, substantially as described.

5. A sole leveling machine having, in com bination, a shoe supporting jack, means for exerting a yielding pressure upon opposite margins of the sole simultaneously, and means for increasing the pressure upon one "margin of. the sole while maintaining the yielding pressure upon opposite margins of the sole, substantially'as desdribed.

6. A sole leveling machine having, in combination, a shoe supporting jack, aleveling roll cooperating therewith, a pressing pad.

seated upon the shank of the shoe, and means for yieldingly forcing the pad into engagement with the 'shoe, substantially as described.

' 7 A sole leveling machine having a shoe supporting jack comprising a toe post and a heel post, a leveling roll, a strap passing over the shank of the, shoe and arranged to cooperate with the leveling roll to level the shoe, a lever pivoted to the jack at one end and connected to the shank stra between its ends, and means for locking t lever in a depressed position to maintainthe strap in engagement with the shoe sole, substantially as described. y v

8. A sole leveling machine-(having, in combination, a shoe-supporting jack, a pressing pad seated upon the shank of the shoe, a pair of arms pivoted to the jack, operative connections for yieldingly securing opposite ends of the pad to the arms, and means for locking the arms-in a depressed position, substantially as described.

9. A sole leveling machine having a shoe supporting jack comprisinga toe post and a heel post, a leveling roll, astrap' passing over the shank of the shoe and arranged to.

cooperate With the-leveling roll to level the sole, a lever pivoted at one end adjacent the front of the jack and connected to the shank strap, a toothed locking member, anda latch pin mounted upon the lever and engaging with the locking member to retain the lever in a depressed position.

10. A sole leveling machine having, in combination, a shoe supporting jack, a pressure pad arranged to bear directly upon .the shoe sole, means for pressingthe pad into engagement with the sole, and a leveling roll cooperating with the pad to level the solo, substantially as described. I

11. A sole leveling machine having, in

combination, a shoe supporting jack, a pressure pad'bearing upon the shank of the shoe sole to shapethe sole to the desired curvature by direct pressure, and a leveling-roll 'cooperating with the pad to apply a levehn g pressure to the sole through the pad, substantially as described. 7

' 12. A sole leveling machine having, in combination, a shoe supporting jack, a pressure pad conforming substantially to the desired curvature of that portion of the shoe sole with which it engages'and a leveling roll cooperating with the pad to exert a, leveling pressure upon the sole lndirectly through the pad, substantially as described. d

level the sole, substantially as described.

14. A sole leveling machine having, in combination, a shoe supporting ack, apressurepad bearing upon the shoe sole and arranged to shape that portion of the sole with which it engages into conformity with the last by a direct pressure, and a leveling roll arranged to exert an indirect pressure upon a portion of the sole engaged by the pad,

substantially as described.

ERASTUS E. WINKLEY.

Witnesses:-

BURTON W. CARY, MABEL Aonnoyn.

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