US1218064A

US1218064A - Sole-pressing machine.

Info

Publication number: US1218064A
Application number: US2547815A
Authority: US
Inventors: Herman A Davenport
Original assignee: United Shoe Machinery Co AB
Current assignee: USM Ltd; United Shoe Machinery Co AB
Priority date: 1915-05-03
Filing date: 1915-05-03
Publication date: 1917-03-06
Anticipated expiration: 1934-03-06

Description

lweizmr,

, 6 Ma W VIM] H. A. DAVENPORT. SOLE PRESSING MACHINE.

APPLICATION FILED MAY 31 I915. 1,218,064..

' H. A. DAVENPORT.

SOLE PRESSING MACHiNE. APPLICATION HLED MAY 3, 1915.

1 ,21 8,064. Patented Mali 6, 1917.

2 SHEETS-SHEET 2 HERMAN A. DAVENPORT, OF BROCKTON,

MASSACHUSETTS, ASSIGNOR TO UNITED SHOE MACHINERY COMPANY, OF PATTERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

SOLE-PBESSING MACHINE.

Patented Mar. 6, 1917.

Application filed May 3, 1915. Serial No. 25,478.

To all whom it may concern:

Be it known that I, HERMAN A. DAVEN- PoR'r, a citizen of the United States, residing at Brockton, in the county of Plymouth and State of Massachusetts, have invented certain new and useful Improvements in 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 to which it appertains to make and use the same.

The present invention relates to sole pressing machines and more particularly to machines of this type employed for laying outsoles upon lasted shoes prior to permanently securing the sole to the shoe.

In sole laylng machines, as commonly constructed, the tempered outsole is laid upon the welted shoe and pressed against the insole and welt by a flexible pad which serves the dual function of shaping the outsole to the last and causing the outsole to adhere to the lasted shoe through cement or other adhesive substance.

The pressure exerted by the pad is sustained indirectly by the last, throughout that part of the outsole which is coextensive with the bottom surface of the last. The marginal portions of the outsole, however, at the forepart and the shank of the shoe, extend beyond the bottom surface of the last and are not supported thereby so that the curved resilient pad tends to bend down the marginal portions of the outsole in the direction of the rounded lateral surfaces of the last. After the sole laying operation the outsole and the welt are subjected to rough rounding, channeling and stitching operations, in all of which the operative instrumentalities are guided by devices which enter the crease formed by the junction be tween the welt and upper;

If the sole laying operation has caused the margin of the outsole to force the welt into close proximity to the lasted upper the crease guide will not enter a suflicient distance and the gagin of the subsequent operations will be per ormed improperly, this being especially true at the inside of the shank.

The object of the present invention is to provide improved mechanism in a sole laying machine of this type to support the marginal portions of the sole and the welt and prevent closing of the crease during the sole laymg operation.

' To this end a feature of the present invention contemplates the provision of a support for the projecting welt and margin of the sole which is normally located in an inoperative position, and means for automatically moving the support into an operative position beneath the welt prior to the engagement of the pressing pad with tho outsole.

Broadly considered the invention is not limited to usev in the manufacture of welted shoes, but may be employed to advantage in various types of shoes where it is desired to support the projecting sole edge.

In the accompanying drawings illustrating the preferred form of the invention in a sole laying machine of well known form; In this machine the last 1 is supported in upright position by a jack comprising the usual heel support 10 and toe support 12. The pad 14: is made of rubber and is supported by spring pressed plungers in a pad box 16, in the usual manner. The pad box is pivotally mounted on a slide 18 which has bearing sleeves 20 guided vertically on parallel rods 24: which extend from a lower frame member 26. A cam 28, pivotally mounted on the frame 26, engages a roller 30 on the slide 18 in order to raise the slide andforoe the pad 14 against the outsole, laying the sole firmly against the'welt and insole.

In the illustrated embodiment of the invention the-sole and welt support is shown as an angular or wedge shaped member 32, which is shaped to enter the crease at the inside of the shank portion of the shoe. The

member 32 is provided with a lug 34, which sleeve 36. This sleeve has a longitudinal socket which receives a stem 38, and a spring 40 is coiled around the stem within the socket and tends to slide the sleeve lengthwise on the stem. The relative movement of the stem and the sleeve is limited by a pin 42, projecting from the stem into a longitudinal slot in the sleeve.

. The stem is adjustably mounted in a head 46 and is secured in adjusted position by a set screw 44. The head 46 is provided with trunnions 48 by which it is mounted in the forked upper end of an upright rod 50. This rod is adjustably secured by a set screw 52 in a socket formed in the upper end of a lever 54. A spring 56, connecting the lever and the head. te ds to rock the latter in a direction to elevate the support 32, this rocking movement being limited by a. stop shoulder 58 on the head, as shown in dotted lines in Fig. 2. The lever 54 is pivoted, at its lower end, on a stud 60 pro jectmg from a collar 62 which is adjustably fixed on one of the slide rods 24.

The machine is arranged to move the support 32 automatically into and out of operative engagement with the shoe on the jack as the pad rises and falls, without manual intervention upon the part of the operator. For this purpose a cam roller 64 is journaled on the slide 18, in position to engage a cam slot 66 formed in the lever 54. This slot is so shaped that the lever is swung inwardly during the first part of the rising'movement of the pad, and is then held in its inward position during the remainder of the rising movement.

The various adjustments provided in the support and actuating mechanism permit the support to be adjusted into proper position to engage a lasted shoe, whatever its size and style may be, and these adjustments are so made that the sole support is normally held in a position slightly above the surface of that portion of the welt with which it engages. Accordingly, when the pad is moved to a pressing position the sole sup-' port is first moved into engagement with the upper of the shoe a short distance above the crease, and then, by the continued movement of the mechanism, it is caused to slide downwardly and inwardly along the upper to enter the crease, this downward movement being permitted by the rocking of the head When the sole support is seated firmly 1n the crease its further movement is thereby arrested and the further movement of the lever 54, due to the continued upward movement of the pressing pad, results merely 1n compression of the spring 40. It will be apparent that the operations just described are such as to accommodate the sole supportto any slight variations which may occur in the size andshape of the shoe which is operated upon or in the location the While cific construction and arrangement of parts shown and described, it will be understood that this construction and arrangement 1s 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 sole laying machine, having in combination, a shoe supporting jack, a cooperating pressing pad, a sole edge support, and means for automatically moving the support from an inoperative position out of engagement with the shoe into an operative position in engagement with the shoe to support the edge of the sole prior to the engagement of the pressing pad with the outsole oi the shoe.

2. A sole laying machine, having in combination, a shoe supporting jack, a coiiperating pressing pad, a sole edge support, and means for automatically moving the support from an inoperative position out of engagement with the shoeinto an operative osition in engagement; with the shoe an for maintaining the support in operative position to support the edge of the sole prior to and during the engagement pad with the outsole of the shoe.

3. A sole laying machine, having in combination, a shoe supporting jack, a cooperating pressingpad, mechanism for actuating the pad, a sole edge support, and mechanism actuated by the movement of the pad for moving the supportfrom an inoperative position out of engagement with the shoe into an operative position in engagement with the shoe prior to the engagement of the pressing pad with the sole.

4. A sole laying machine, having in combination, a'shoe supporting jack, a cotiperating pressing pad movable toward and from the jack, a so operatively connected with the pad for moving the support both into and out of operative position.

5. A sole laying machine, having in comhination, a shoe supporting jack, a pressing pad, a slide supporting the pad, a sole edge support, a pivoted lever, and connections between the slide and lever for rocking the lever to move the support into and out of operative osition.

6. A. see laying machine, comprising, a lever, a edge support mounted upon the lever, means for yieldingly maintaining the support in a predetermined angular position with relation the lever, and means it is preferred to employ the speof the pressing 1 le edge support, and mechanism for rocking the lever to 'move the support into and out of engagement with the shank of the shoe.

7. A sole laying machine, comprising, a

shoe supporting jack, a lever, a sole edge v 8. A sole laying machine, comprising, a

shoe supporting ack, a lever, a sole edge support mounted upon the lever and adjustable vertically with relation thereto, and mechanism for actuating the lever to move the support into and out of engagement with the shoe. I

9. A sole laying machine, comprising, a shoe supporting jack, a lever, a sole edge support pivotally mounted upon the upper end of the lever, means for yieldingly maintaining the support in a predetermined angular position with relation to the lever, and mechanism for actuating the lever to move the support .into and out of engagement with the shoe.

10. A sole laying machine, comprising, a shoe supporting jack, a sole edge support adapted to enter the crease between the welt and the lasted upper of the shoe at the shank, mechanism for moving the support into and out of engagement with the shoe, and means for yieldingly retaining the 7 support inoperative position against the welt.

11. A sole laying machine, comprising a pressing pad, a movable slide carrying the pad, a lever having a curved slot formed therein, connections between the. slide and lever for rocking the lever when the slide is actuated, and a sole edge support mounted upon the end of the lever and arranged to enter the crease formed by the junction of the welt and lasted upper of a shoe.

HERMAN A. DAVENPORT.