US960980A

US960980A - Sole-pressing machine.

Info

Publication number: US960980A
Application number: US30523206A
Authority: US
Inventors: Benjamin F Mayo
Original assignee: United Shoe Machinery Co AB
Current assignee: USM Ltd; United Shoe Machinery Co AB
Priority date: 1906-03-10
Filing date: 1906-03-10
Publication date: 1910-06-07
Anticipated expiration: 1927-06-07

Description

B. P. MAY-0. SOLE PRESSIN G MACHINE. APPLICATION FILED MAR. 10, 1906.

Patented June '7, 1910.

2 8HEETSSHEET 1.

B. F. MAYO.

SOLE PRESSING- MACHINE.

APPLICATION FILED mumo, 1906.

969 980., Patented June 7, 1919 2 SEEETS-SHEET 2.

BENJAMIN r. MAYO, or SALEM, mssacnzusnr'rs, assrenon 'r'o outrun SHOE macnmnnr COMPANY, or rnnnson, new JERSEY, a coarone'rro'n or new JERSEY.

' SOLE-PRESSING MACHINE.

ecoeso.

Specification of Letters Patent.

' atented June'Y, 191%..

Application flied March 10,1906. Serial No. 305,232.

To all whom it may concern:

Be it known that I, BENJAMIN a citizen of the United States, residing at Salem, in the county of Essex and State of Y Massachusetts, have invented certain new and useful Improvements in Sole-Pressing 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 towhich it appertains to make and use the same.

The present invention relates to sole pressing machines and is designed rimaril for use in connection with sole leve ing mac ines' although it is not limited thereto, but may vbe used in connection with other forms of sole pressing machines such, for instance, as

sole moldingmachines which are adapted to In the manufacture of shoes provided with spring heels the outer sole before being applied to the shoe is molded so as to form a sharp-bend or break in the sole at the junction of the shank and heel portion, which bend or break forms the breast of the heel in the completed shoe. After the sole has been molded, the heel lifts are applied and then the sole is secured to the shoe. The heel is thus ap lied to the shoe before the sole is leveled. n order to properly level the sole it is necessary tha the sole pressing form of the leveling mac ine act upon the vheel portion as well as upon the other portions of the sole, aud to this end the heel port-ion of the form is cut away to form a recess which receives the heel portion of the sole. To produce the best results it is necessary that the recess in the form accurately fit the heel portion of the sole, and particularly that the front wall of the recess fit accurately against the inclined portion of the sole which forms the breast of the heel as otherwise the bend in the sole produced by the-sole molding machine is more or less obliterated instead of being retained and accentua ted by the sole leveling operation. The position of the inclined portion of the sole which forms the ,breast of the heel, however, varies with relation tothe' other movement of the slide in either parts of the shoe, this variation being due F. MAYO,

to'various causes, such, for instance, as lack of uniformity in the sole molding operatlon or tea slight displacement of the sole durthe sole laying operation.

11 sole leveling machines as heretofore constructed the sole pressing form is held rigidly in position with relation to the shoe supporting jack during the sole leveling operation and asa'consequence the heel portion of the sole is not properly acted upon when the position of the breast varies.

Theob ect of the present invention is to overcome this difiiculty in the o eration of sole leveling machines, and to t is end the invention contemplates so supporting the sole pressing form and the shoe supporting jack as to permit a relative. longitudinal yielding movement of the jack and form when the form is brought into engagement with the sole so that the recess in'the heel portion of the form is caused to register accurately with the heel portion of the sole.

Broadly considered, the invention contemplates the provision of means whereby either the jack or the form or both are, permitted to move longitudinally when the form is brought into engagement with the sole. In sole leveling machines, however, it is desirable that the jack be held from longitudinal movement to enable the operator to work upon the sole of the shoe before and after the sole pressing operation, as maybe neces-,

jack and form may be constructed and arranged in any desired'manner, but is preferably arranged to permit the form to move longitudinally in either direction.

In the: preferred form of the invention hereinafter specifically described, a form carrier is provided which comprises a base portion, a .slide mounted thereon, opposed s rings interposed between the carrier and the slide arranged to permit a; lon itudinal irection, and means for removably securing the form sary,and for this reason it 'is considered 7 tion will be clearly understood from an in spection of the accompanying drawings in Figure 1 is a view in side elevation of so much of a well-known form of sole'leveling vmachine as is necessary to show the connection of the present invention therewith; Fig. 2 is a' detail view in side elevation of the sole pressing form, the form carrier and the blockupon which the form carrier is mounted. Fi 3 is a central longitudinal sectional View 0 the form carrier taken on the line 33 of Fig. 4, and Fig. 4 is a cross-sectional view of the form carrier taken on. the line 4-4ofFig.3.,'

For convenience of illustration the present invention has been illustrated in connection with a well-known form of sole leveling machine and only so much of said machine has been shown as is necessary to indicate the arrangement and mode of operation of its principal parts. This machine, as illustrated in Fig. 1 of the drawings, comprises a vertically reclprocatin table 1 upon which the jacks are mounte movable horizontally from a posit-ion at the front of the machine to a position in vertical alinement with their cooperating sole pressing forms, a vertically movable cross-head 2 from which the sole pressing forms are sup ported, mechanism for reciprocating the acks on the table 1, mechanism for permitting the cross-head 2 to move downwardly until a sole pressing form is seated upon the sole of a shoe, mechanism for raising and lowering the table 1 to press the sole of the shoe, mechanism for locking the cross-head 2 in position during the upward movement of the table 1, and mechanism for raising the cross-head 2 after the sole pressing operation has been completed. These mechanisms are rom a cam shaft 3 journaled all actuated in the rear portion of the machine frame and provided with a worm wheel 4 with which a worm 5 meshes secured upon a shaft 6 j ournaled in the machine frame beneath and at right angles to the shaft 3. At its rear end the shaft 6 is provided with a spirahgear 7 which meshes with aspiral gear 8 upon the main driving shaft 9. The mechanism for actuating the table 1 consists of a toggle lever 10, a cam on the shaft 3 and a link connecting the cam and the toggle lever. The

inward and outward movements of the jacks and upon'which the jacks are been pressed, and for permitting the crosshead to move downwardly to seat a form upon the sole of a shoe, comprises a cam on the shaft 3, a lever .16 provided with a roll bearing against the cam, and a link 17 con- .necting the lever 16 and the cross-head 2.

The-mechanism for locking the. cross-head 2 during the upward movement of the table "1 in pressing a sole comprises locking cams 18 secured to a rock shaft 19 mounted in the frame of the machine above the cross-head, an arm 20 projecting rearwardly from the rock shaft 19, a lever 21, a link 22 connecting the arm 20 and the lever 21, and a cam on the shaft 3 engaging a roll on the lever 21.

The construction and mode of operation of the arts so far described are substantially tffe same as the corresponding parts of a sole leveling machine which has gone into extensive use and which is well known by persons familiar with sole leveling machines, and further descri tion and illustration of the mechanism 0 this machine is considered unnecessary.

In applying the present invention to .the machine illustrated in Fig. 1, means have been provided for permitting a relative longitudlnal yielding movement between a shoe supportin jack 23 and its cooperating sole pressing orm 24. In the embodiment of the invention illustrated in the drawings the jack 23 is mounted upon its slide 15 in the usual manner, and means are provided for yieldingly holdin the form 24 in position to cooperate wit the jack while permitting it to move longitudinally in either direction when brought into engagement with the sole.v The manner in which the sole pressing form 24 is mounted will be apparent from an inspection of Figs. 2, 3 an 4. Referring to these figures, 25 indicates a plate which forms a portion of thebase. of a form carrier, the remaining por tion of the base consisting of 'a block 26 to which the plate 25 is secured, and which is mounted upon a block 27 so as to be capable of a sli ht rocking movement, this construction being that which has heretofore been employed in this class of-machines.

a slide 28, which slide forms the lower portion of the form carrier, as best illustrated in Figs. 3 and 4. In the lower face of the slide 28 a dove-tailed groove 29 is provided which receives the strap 30 adjustably secured to the upper surface of the sole pressing form. At 1ts forward end the slide 28 is provided with a vertical locking in 31 WhlCh is ada ted to engage a hole in the strap 30 and thus lock the sole ressing form to the slide. The locking pin 31 is provided with a groove 32 with which a cross-pin 33 engages to hold the pin in its lowest position. Below the roove the looking pin is provided with a attened portion Upon the plate 25 of the form carrier is mounted on one side, so that by rotating the pin the fiat portion may be brought beneath the cross-pin 33 and the locking pin may be raised to unlock the form and permit the form to be removed fromthe carrier. I By means of the-dovetailed groove 29 andv the locking pin 31, the solepressing-form is se-. cured to the form carrier in a position which causes it to move longitudinally when the slide 28 is moved. The slide 28 is yieldingly held in-position on the plate 25 by

coiled springs

34 and 35, which springs are located in a recess in the plate 25 and act in opposite directions upon the head 36 of a rod 37 projecting from the front end of the slide 28 into the recess for the springs. The spring 34 is interposed between the head '36 of the rod and the shoulder at the forward end of the recess for the springs, and the spring 35 is interposed between the head 36 of the rod and a screw-threaded plug 38 at the rear end of the recess. The rod 37 is secured to the slide .28 by means ofda cross-pin 39 engaging a groove in the ro r Except for the action of the

springs

34 and 35, the slide28 is free to move longitudinally on the plate 25, and thus the springs act to hold the slide yieldingly in position while permitting it-to move longitudinally when the sole pressing form is brought into engagement with the sole of a shoe. This lon itudinal movement of the slide 28 is su cient to permit the recess at the heel end of the sole pressing form to registeraccurately with the heel portion of the sole so that the heel portion of the sole is properly leveled, and the bendor break in the sole produced by the sole molding machinev is retained and accentuated.

The nature and scope of the present invention having been indicated and the preferred embodiment of the invention havin been specifically described,1what is claim'e 1s 1. A sole pressing machine, having, in combination, a shoe supporting jack, a. sole pressing form, means for actuating the jack and form to press the sole of a shoe supported upon the 1a'ck, and means for supporting the jack and form constructed to permit a relative longitudinal yielding movement of the jack and form while pressing a sole.

' 2. A sole pressing machine, having, in

combinatioma shoe supporting jack, a sole pressing form, means for actuating the jack and, form to press the sole of a shoe supported upon the jack, and yielding means torsupporting the form arranged to permit the form to move longitudinally when brought into engagement with the sole.

3. .A sole presslng machine, having, in

a longitudinal movement of the form in either direction. when brought into engagement with the sole.

4. A sole pressing machine, having, in

' combination, a shoe supporting jack, a 'sole' pressing form, means for actuating the jack and form to press the sole of a shoe supported upon the jack, a form carrier comprising a base and a form carrying slide mounted thereon, yielding means for holding the slide in position on the base arranged to permit the slide to move when the form is brought into enga 'ementwith the sole and means for remova 1y securing the form to the slide in a position to move longitudinally with the slide. a

' 5. A sole pressing machine, having, in combination, a shoe supporting jack, a sole pressing form, means for actuating the jack and form to press the sole of a shoe supported upon the jack, a form carrier comprising a base and a form supporting slide mounted thereon, springs interposed between the slide and the base arranged to hold the slide yieldingly in position while permitting it to move in either direction when the form is brought into enga ement with the sole, and means for remova bly securing the form to the slide 'ina position to move longitudinally with the slide.

6. A form carrier for sole pressing machines, having, in combination, a base, and yielding means for holding a form in position thereon arranged to permit the form to move longitudinally when brought into engagement with a sole. I

7. A form carrier for sole pressing'machines, having, in combination, .a base, a form carrying slide mounted thereon, o posed springs arranged to hold the slide in position while permitting it to move in either direction when the form is brought into engagement with a sole and means for removably securing the form to the slide.

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

BENJAMIN F. MAYO. Witnesses:

FRED O. FISH, FARNUM F. DoRsEY.