US627034A - winkley - Google Patents

Description

E L K N W .L E

Patented June l3, I899.

SOLE PBESSING MACHINE.

(Application filedw-Tuly 20, 1898 3 Sheets-Sheet I.

(No Model.)

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WITNE 5 SE 5 Q 55% 1;.

THE Nomus 9:1 ERS c; an

No. 627,034. Patented lune l3, I899. E. E. WINKLEY.

SOLE PBESSING MAGHINE.

(Application filed July 20, 1898.

(No Model.)

3 Sheets-Sheet 2'.

WITNE E'EEE No. 627,034. Patented lune I3, I899. E. E. WINKLEY.

SOLE PRESSING MACHINE.

(Application med July 20, 1898.) (No Model.) 3 Sheets-Sheet 3.

WITNESSES INVENTEIR 4 M A; 4

NlTE STATES ATENT 'iuucn.

ERASTUS E. IVINKLEY, OF LYNN, MASSACHUSETTS, ASSIGNOR OF ONE-HALF TO BENJAMIN PHILLIPS, OF SAME PLACE.

SOLE-PRESSING MACHINE.

SPECIFICATION forming part of Letters Patent No. 627,034, dated June 13, 1899.

' Application filed July 20, 1898. Serial No. 686,410. (llo model.)

1'0 to whom it may concern.-

Be it known that I, ERASTUS E. WINKLEY, a

citizen of the United States, residingat Lynn,

in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Sole-Pressing Machines;

same.

The present invention relates generally to improvements in sole-pressing machines, including machines adapted to temporarily attach the outsole to the lasted upper and insole, commonly called sole-layin g machines, and

machines adapted to operate upon the out-1 sole after it has been permanently attached to the lasted upper and insole or welt, commonly termed sole-leveling machines.

means for adjusting the pressure mechanism for different heights of last or thickness of sole, whereby such adjustmen t is efiected automatically and the required pressure secured, where the above conditions vary, without manual interference on the part of the operator.

The present invention consists, further, of

improved means of presenting the jacks to the forms and of other improvements in the construction and organization of the machine and the several mechanisms embodied therein, as more fully hereinafter pointed out in this specification and defined in the claims.

The accompanying drawings illustrate my invention as applied to a sole-laying machine.

Figure 1 shows the machine in side elevation; Fig. 2, in sectional elevation, portions of frame and pressure-securing mechanism being removed; Fig. 3, in front elevation, Fig. 4: illustrating details of construction of start-andstop mechanism and Fig. 5 showing the machine in top, plan.

In the several views of the drawings 1 have indicated likeparts by like letters of reference.

In the machine illustrated, F is a frame suitable to support the working parts,hereinafter described.

A A represent a pair of shoe supporting jacks conveniently provided with the usual toe-rest a and heel-support ct. The jack, however, in itself forms no part of the present invention, the specific form shown being well known in the prior art and requiring no further description herein.

The forms are shown at B B and may be of any suitable construction. In practice I have found it desirable to use a form substantially similar in construction of its essential features to that shown and described in United States Letters Patent issued to me March 23, 1897, No. 579,206; but good results can be obtained with manyother constructions of forms .65

well known in the prior art. It may be stated in this connection that when the machine is to be used as a sole-leveling machine for many classes of work I prefer to use the usual metallic form instead of the rubber form of said Q patent and to substitute for the illustrated The present invention consists of improved jacks the common iron last such as is now generally used with leveling-machines of the direct-pressuretype. Forlevelingturn-shoes,

however, while preferring to use a metallic form, I find it desirable to retain the illustr'ated jack or to use some other suitable device to support the wooden last, so that the leveling operation can be performed upon the wooden last upon which the shoes are lasted.

This is also a desirable feature in beating out welted shoes and is made practical in my present machine by my improved means for adj usting the pressure mechanism, which prevents undue pressure where the thickness of sole and height of last varies, which is otherwise liable to break the last.

To present the jacks to the forms and to bring them into a convenient position for the adjustment of a shoe thereon or its removal 0 therefrom, I have provided in the machine of the drawings the following mechanism, which as to certain featuresI consider to be novel and I will therefore describe in detail.

The jacks A A are mounted upon a jack- 5 carrier D, which, as shown, consists of a plate or bar of suitable length, adjacent to opposite ends of which the jacks are mounted. The

as hereinafter described. From the center of the jack-carrier D is projected an arm or offset (1, which is free to turn about a suitable bearing d in the table d or a forwardly-projected extension thereof. The bearing 01 is located immediately in front ofa point midway between the two jacks A A, and the distance from the center of the bearing d to the medial line of the jacks is half the distance between the forms B B. When the forms B B are arranged, as shown, with their toe ends away from the operatorand their medial lines substantially parallel, the jacks A A are arranged upon the carrier D substantially in line and with their heel-supports a adjacent to each other. (See Fig. 1.) On the table d are provided suitable stops d so positioned that when the carrier D is turned against the.

same one of the jacks A is in proper position to cooperate with its form.

The pressure mechanism of the machine of the drawings is described as follows: The table 01 is free to reciprocate vertically along suitable vertical guides d arranged to guide and laterally support the same. Upon the lower side of the table (Z is fulcrumed the upper member of the toggle-lever d, the lower member of which is fulcrumed upon the vertically-movable cross-head 61 which is also movable along the guides d Upon the crosshead (1 are formed two uides or bearin s d which receive the vertical rods 61 and through which said rods are free to reciprocate, being guided and held in position thereby. The rods d below the cross-head d carry a cross head 01 between which and the cross-head d is interposed a coiled spring 61 the lower end of which bears upon the cross-head d and the upper end upon a disk d upon which bears a bolt (Z having a threaded bearing in the cross-head d By raising or lowering the bolt d the initial compression of the spring d may be regulated. By initial compression, as I have used the term above, I desire to be understood as meaning the extent of compression of the spring before any compressing action between the jacks and forms occurs, it of course being understood that variations in such initial compression effect porportionate variations in the force required to further compress the spring d when the jacks'A are under pressure and make their compressing action more or less resilient or yielding. The rods d are capped above the guides or bearings d to prevent them being drawn out when the head d is raised.

The cross-head (Z when the jacks A are undei pressure is arranged to bear upon an adjustable rest or stop 01, (see Fig. 2,) which, as shown, consists of a suitable bolt having a threaded bearing in a fixed head d secured to the frame F, and which by means of the handwheel d may be raised or lowered by rotation in said bearings. Stops (Z are provided,(see dotted lines, Fig. 3,) secured in the guides d which limit the downward movement of the table (F, The abovedescribed arrangement is such that when the table cl rests upon the stops d and the toggle d is straightened the cross-head (1 will move downward until the cross-head d contacts with the stop or rest c1 when the resistance of the spring d will oppose further downward movement of the cross-head 01?, and the table d will therefore be raised, and if one of the forms B has been properly seated the jacks and forms will be brought into their position of pressure. It will be noted from the above that the function of the adjustable stop (Z is to regulate the amount of pressure secured, which is greater or less as the crosshead d contacts with the stop (Z earlier or later in its downwardmovement.

The mechanism for operating the togglelever d is of the usual type, and a brief description thereof will be sufficient herein.

The driving-shaft of the machine is shown at E and rotates the main shaft E by means of the gear connections 6 andc. The shaft E carries asuitably-timed cam 0 which by means of the connecting-link c operates the toggle d As shown, the link e is pivotally connected with the toggle (Z at its central joint or knuckle and is slotted to receive the shaft.

In the machine of the drawings the pressure mechanism includes the forms B, the jacks A, and the mechanism for raising and lowering the jacks, as above described. The movement of the forms which I will now describe is not a movement of pressure, but an adjustment whereby the pressure mechanism prior to its pressure movement is adjusted for the height of last and thickness of sole to be operated upon. In other words, by the movement of the forms the pressure mechanism is adjusted to exert on shoes of different heights of last or thickness of sole a substantially uniform pressure, the resiliency of which is regulated by the bolt d and the amount of which is determined by the position of the stop (Z The forms B B are mounted upon a vertically-reciprocating head 1) free to reciprocate along suitable vertical guides Z) in the frame. To the head I) is secured a vertical rod b (see Fig. 2,) which is projected through a bearing 11 on the frame F, in which it is free to reciprocate, being guided and held in position thereby. To the rod b is secured 'a vertical rack 12 with which meshes a segmental gear bicarried upon one arm of a bell-levei'l) ,which is fulcrumed at its angle upon the frame F, and the other arm of which carries a roll b arranged to be engaged by a periphery cam b carried by the shaft E. The cam b is so timed and arranged that when the machine is started with the jacks and forms in a position of pressure after the toggle has released and the head bhas been unlocked, as hereinafter described, the cam 11 will engage the roll b and raise the head b to bring the forms B into their position of clearance, and when the machine is started from a position of clearance is described as follows: Above the head b,

mounted in suitable bearings in the frame F, is a shaft 0, which carries the cams c c. The shaft 0 also carries a segmental gear 0 which meshes with a segmental gear 0 carried by the swinging lever 0 fulcrumed at c on the frame F. The swinging lever c carries below its fulcrum a cam-roll 0 which is arranged to be engaged by a periphery cam c 011 The cams c are so formed that when turned in a forward direction they will contact with the head I) or a suitable bearing-block 5 thereon and lock the forms against upward movement. The cam c is so timed and arranged that as the pressure is released it will engage the cam-roll c and by means of lever c rotate the shaft 0 to turn the cams c in rearward direction to cause them to release the head I) and to allow it to be raised by the cam 12 and its connections. After a form is seated upon a shoe the cam 0 leaves the roll 0 and allows the spring 0 to impart a forward rotation to the shaft 0, which turns the cams 0 forward until they bind upon the bearingblock Z9 when the forward rotation of shaft 0. ceases and the headb is locked from upward movement by the cams c. It will be noted that the releasing movement of cams c is positive, while theirlocking movement is springcontrolled, so that it automatically varies in extent to provide for different elevations of the head b,.caused by differences in the height of the last or thickness of sole of the shoe upon which the working form rests.

In connection with the mechanism heretofore described I have provided in the machine of the drawings a suitable start-and-stop mechanism, which is arranged to stop the machine when the jacks and forms are in their position of pressure and also when they are in a position of clearance, so that the jack carrying the shoe which has been operated upon can be thrown out and the other jack brought under the form which cooperates therewith. V

The start-and-stop mechanism illustrated consists-of pulley e, which normally turns loosely upon the driving-shaft E and is free to have a limited sliding motion along the same. The pulley e is looked to shaft E to rotate therewithby means of a clutch 6 one member of which turns with the pulley e, being conveniently formed upon the hub thereof, and the other member is keyed or otherwise secured to rotate with shaft E. In the hub of the pulley e is formed a circular groove e, which is engaged by a segmental flange 6 formed upon a hub carried by'the shaft 6 The shaft 6 is mounted to slide longitudinally and rotate in suitable bearings in frame F.

The gear 6' carries two projections or dogs.

6 (only one shown,) which are arranged as the gear e is rotated to engage a dog e on the shaft 6 and to slide said shaft in its bearings sufficiently to disengage the members of the clutch e and allow the pulley e to turn loosely upon the shaft E. A treadle e is provided, which is connected with the shaft 6 by means of a rod 6 which connects with an arm e secured to the shaft 6 whereby the shaft 6 may be rotated to turn the dog 6 out of the path of the dog e and to permit the spring a, surrounding the shaft 6 to slide the shaft e in its bearings to close the clutch e The shaft c is rotated in an opposite direction to restore the dog 6 to its original position by means of a spring a, which connects the arm 6 with a fixed portion of the frame F.

It is perhaps unnecessary to add that the stop mechanism above described forms no es sential part of the present invention, as there are many forms of such mechanism in the prior art whereby equally good resultscould be secured.

The forms B, as shown, are removably and adjustably secured to the head I), as is usual in this class ofmachines.

The operation of themachine of the drawings is as follows: Assuming that the jacks and forms are in their position of clearance, the operator adjusts a shoe upon one of the jacks and, having by means of the bolt (1 and the adjustable stop 61 adjusted the pressure mechanism to secure the desired resiliency and pressure, turns the jack-carrier D until it contactswith the stop 01 which brings the jack A under its cooperating form B. The operator then starts the machine by means of the treadle e and the head I) drops by its own weight until the form B rests upon the sole of the shoe, which has been placed on the jack A. The seating of the form, as above stated, stops any further downward motion of the head I), and the cams c are thrown forward and lock it in its seated position against upward movement. After the form 18 has been seated and looked, as above stated, the toggle d is straightened and raises the table (1 and with it the jack-carrier D and jacks A, the jack A which is under the form B being brought into a position of pressure and the sole of the shoe thereon being compressed between the jack and form. At this time the jack A at the other end of carrier D is out from under the forms B and in a convenient position for the removal of a shoe therefrom or the adjustment of a shoe thereon, and the machine is automatically stopped. As soon as the operator has adjusted a shoe upon the empty jack he again starts the machine, and the toggle thereupon releases the table d to relax the pressure, the cams c" are turned back to unlock the forms B, and said. forms are raised until the jacks and forms are in their'position of clearance, when the machine again stops. The operator then turns the carrier D until it contacts with the other stop .d fiwhich bring the jack which has just re- Idesire to say that I am aware that it has heretofore been proposed'in sole-levelingtmachines to mount the jacks on a rotary carrier; butlsuch carrier has never before, in sofar as Iv am advised-of the state of. the art, been set off from its center of rotation, and it has heretofore been necessary where the jacks were brought in front of the machine: to ro- 2- t'ate the jacks upon the carrier in order that they-might be properly presented to the forms and the operation.

By setting oif the carrier from its rotation, as-hereinbet'ore described, while presenting thejack successively at. the front of the machine, I avoid this necessity of turning the jacks themselves, thereby greatly increasing the speed and efliiciency of the machine.

In a prior patent issuedto me April 7, 1896,

chine having provision for anadjustment of the pressure mechanism forlasts of diiferent heights and soles of different thickness and have broadly claimed the same. It is to be noted that the mechanism. of said. patented machine differs from that of my present machine as to this feature, in that in said patented machine the seatingmovement of form is continued-for the pressure movement and the seating'mechanis'm for the form is in opnation with. a pair of pressing-forms, of a erative connection with the pressure mechanism, said seating mechanism acting to shift or vary the'point of a connection between the formand the pressure mechanism. In the present invention the seating movement of the form is entirely independent of the movement which produces pressure, andv there is no connection between the form and pressuresecuring mechanism.

Having thus described. my invention, I claimas novel and desire to secure by Letters Patent of the'United States- 1. In a sole-pressing machine, the combi- ;nation with a jack and form, of independent i mechanisms operating automatically and successively to seat the form and to bring the form and jack into a position of pressure, substantially as described.

2. In a sole-pressing machine, the combination with a form member and a jack member, of mechanism to relatively actuate said members to seat the form member, automatic {means to lock one of said members, and mechanism toactuate the other member to secure pressure, substantially as described.

3. In a sole-pressing machine, thecombination witha pair of pressing-forms, of ajackcarrier having its center of rotation in front of a point between the forms, and a pair of jacks mounted on the carrier-and set ofi from Iits center of rotation, substantially as de scribed.

41:. In a sole-pressing machine,- the combiin'ation with complementary pressing mem- ;bers,.of means to impart to one of. said members a movement toward the other member gto cause both members to engage the sole, {means to lock one of the pressing members iagainst a return movement, and independent Fmechanism to move the other'pressing member toward the member which is locked to press and shape the sole, substantially as described;

No. 557,744, I' have shown a sole-laying ma- 5 nation with a sole-pressing form and shoe- Isupportingjack, of means to move the form 5. In a sole-pressing machine, the combidescribed.

6'. In a sole-pressing. machine, the combijac'k -carrier carrying a pair of jacks arranged 5 in longitudinal alinement with each other, the said carrier being pivotally supported to turn about a center at one side of the jacks, substantially as.- described.

In testimony whereof I affix my signature in presence of two witnesses. I

ERASTUS E. WINKLEY. \Vitnesses:

FRED V. HART, T. HART ANDERSON.

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