US1954178A - Jack - Google Patents

Description

April 10, 1934- H. KAKIDES El AL 1,954,178

' JACK Filed May 28, 1952 2 Sheets-Sheet 1 {NVENTORS Z2: 7 .l/ BY WM A TTORNEY April 10, 1934. H KAKIDES ET AL 1,954,1fl z' JACK Filed May 28, 1932 2 Sheets-Sheet IN V EN TOILS A TTORNEY Patented Apr. 10, 1934 JACK Harry Kakides, Haverhill, Mass, and John H. Vegessy, Corona, N. Y.

Application May 28, 1932, Serial No. 614,102

12 Claims.

This invention relates to the shoe manufacturing art and, more specifically, is concerned with a jack for supporting a shoe last during certain manufacturing operations.

In certain operations, particularly in the manufacture of turn shoes, the shoe after it is turned is placed on a last for perfecting the shape of the shoe upper. The shoe worker, by certain operations, usually performed by hand-implcments, removes wrinkles and otherwise smooths the shoe upper particularly in the regions near or adjacent the crease at the outersole. Heretofore, these operations were performed by one hand while the shoe worker held the shoe against his body by the other hand. This was undesirable because of the necessary awkward and inefficient manipulations and the consequent increased length of time consumed in completing the work.

It is therefore an object of this invention to provide a jack for supporting a shoe-carrying last in such a way as to enable the shoe worker to perform the necessary operations on the shoe with both hands free for this purpose.

Another object of the invention is the provision 'of a jack which is of simple construction and which affords free access to the shoe upper, particularly those portions of the shoe upper at or near the crease at the outersole.

A further object of the invention is generally to improve the construction of jacks in the shoe machine art.

These and other objects of the invention, which will be readily apparent to those skilled in the art, are attained by the jack constituting one embodiment of the invention hereinafter described in connection with the accompanying drawings, in which:

Figure 1 is a side view, in elevation, the jack in one position;

Figure 2 is a side view, partly in elevation and partly in section, showing the jack in another position;

Figure 3 is a sectional view on the line 3--3 of Figure 2;

Figure 4 is a sectional view on the line 4--4 of Figure 1 with the last removed; and

Figure 5 is a top plan view of the jack on a reduced scale.

As here shown, the jack as a whole comprises a metal frame or base 10, which may be removably secured to or form part of a shoe workers bench. Spaced side supports 11 and 12 are secured at the forward end of the frame preferablyby bolts, as shown. These side supports are showing preferably curved or arcuate in form and, as shown more clearly in Figure 3, comprise vertical standards 13 and 14 which carry pad-core members 15 and 16, and pads which comprise layers of felt 17 and 18 and covering layers of soft leather 19 and 20 removably secured in position by metal straps 21 which are secured to the standards 13 and 14 preferably by bolts 22. Supports 11 and 12 extend longitudinally of the frame and are spaced transversely thereof to provide ample working space therebetween. Each side support extends longitudinally and also transversely of the frame along a curved line whereby the support affords a relatively large surface conforming generally to the shape of the shoe and also restricts forward movement of the shoe.

The shoe, shown generally in dotted lines in Figures 1 and 2, carried by the last 23, can be supported by either of the side supports 11 and 12, as shown in Figure 3, so that the shoe worker can operate on either side of the shoe at will. To permit the worker to use both hands means are provided for firmly holding the shoe in position against either side support. Said means comprises a pivoted holder 24 which, as here shown, includes a shaft having trunnions 25 and. 26, journalled in bearings 27 and 28 secured to the frame 10 by bolts 29, upstanding crank arms 30 and 31 and a cross member 32 which carries a jack pin 33. Said jack pin projects forwardly of the cross member 32 whereby a last, mounted on the jack pin, is disposed in a substantially vertical position with the toe portion uppermost. An upstanding arm 34 is secured at its lower end, preferably by a set screw 35, to the square end portion 36 of the shaft. A pin 37 is carried by the arm 34 at its upper end. A strong tension spring 38 has one end connected to the pin 37 and has its other end connected to an apertured lug 39 secured to the frame 10. The lug 39 is eccentric with respect to the shaft trunnions 25 and 26 and the arm 34 is so arranged that the spring 38 exerts substantial pressure to firmly press the last against/either side support-11 or 12, as illustrated in Figure 2, and the arrangement is also such that the spring can retain the holder 24 and the last carried thereby in the position shown in Figure 1 against the jack 40 which is used in the first lasting operation. Said jack 40 thus acts as a stop for the holder 24 in the position shown in Figure 1. The spring device constituted by the arm 34, pin 37 and lug 39 may be duplicated at the other end of the shaft, and for this purpose said end is provided with a square section 41,

but ordinarily one spring device will be found satisfactory.

A stop device 42 is secured at the forward end of the frame 10 for the purpose of limiting the forward movement of the last 23 whereby to support the shoe above the frame, if desired, thereby to prevent the rear heel portion of the shoe from rubbing against the frame. The stop device 42 comprises a foot portion 43 having a slot 44 through which a clamping bolt 45 extends for clamping the stop device in adjusted position. The stop device, while preferred, may be dispensed with and the heel portion of the shoe may rest on a pad 46 which is secured to the frame by screws 47 or the like.

The manner of using the jack, more or less apparent from the above description, is illustrated in Figures 1 to 3. With the pivoted holder 24 in the position shown in Figure 1, the operator mounts the last on the jack pin 33; then he moves the holder over the dead center of the shaft trunnions 25 and 26 to the position shown in Figure 2, with the bottom of the shoe against the stop device 42; then he turns the last on the jack pin 33 to the dotted line position 23a where the shoe rests against the side support 12, and when the shoe is thus held against this support by the spring pressed holder 24, the operator works on the exposed side of the shoe; and then the operator turns the last on the pin 33 to the dotted line position 231), and then Works on the other side of the shoe. When working on the rear heel portion of the upper, the operator may find it convenient to support the last on the jack pin 48 of the jack 40. A set screw 49 is provided for holding the jack pin 48 in the desired fixed position.

The several parts of the jack, with the exception of the pads, are preferably made of steel and are of such size and are so assembled as to form a rugged structure. The single embodiment shown is the preferred construction, but it will be understood that since certain changes in the construction and arrangement of parts will readily occur to those skilled in the art, we do not wish to be limited to the construction shown except as may be required by the appended claims and the prior art.

Having thus described the invention, what we claim is:

1. A jack comprising a base, two spaced supports extending vertically above said base and spaced transeversely thereof, each adapted to support one side of a shoe with the opposite side thereof accessible for operation thereon, a movable holder for holding said shoe in vertical position with either side thereof in engagement with one of said supports, and yieldable means for moving said holder and for holding said shoe mounted thereon in engagement with either of said supports.

2. A jack comprising a base, a pivoted shaft provided with spaced trunnions journaled in bearings located above said base, said trunnions connected by-upstanding crank arms and a cross member, a jack pin mounted in said cross member and projecting forwardly thereof, whereby a last supported on said jack pin can be disposed so that the last extends in a substantially vertical direction with its toe portion uppermost, and means on said base for supporting said last in a vertical position above said base.

3. A jack comprising a base, a pivoted shaft provided with spaced trunnions journalled in bearings located above said base, said trunnions connected by upstanding crank arms and a cross member, a jack pin mounted in said cross member and projecting forwardly thereof, whereby a last supported on said jack pin can be disposed so that the last extends in a substantially vertical direction with its toe portion uppermost, a support for said last forwardly of said shaft, and means associated With said shaft for releasably holding the last in vertical position against said support.

4. A jack comprising a pivoted shaft provided with spaced trunnions journalled in bearings, said trunnions connected by upstanding crank arms and a cross member, a jack pin mounted in said cross member and projecting forwardly thereof, whereby a last supported on said jack pin can be disposed so that the last extends in a substantially vertical direction with its toe portion uppermost, a support for said last forwardly of said shaft, and means associated with said shaft for releasably holding the last against said support, comprising an arm fixed to said shaft, and a spring connected to said arm for releasably pressing the last carried by said jack pin against said support.

5. A jack comprising a frame, bearings on said frame, a shaft having trunnions journalled in said bearings, crank arms upstanding from said trunnions above said frame, a cross piece connecting said crank arms, a jack pin carried by and projecting forwardly of said cross piece, a support on said frame forwardly of said cross piece, an arm fixed to and upstanding from one of said trunnions, and a spring connected to the upper end of said arm and to said frame for moving said cross piece and the jack pin carried thereby to- Ward said support.

6. A jack comprising a base, two spaced supports extending above said base and spaced transversely thereof, each adapted to support one side of a shoe with the opposite side thereof accessible for operation thereon, means for removably securing said shoe in position in engagement with either of said supports, and a stop device extending above said base adapted to engage the bottom of the shoe and to support the same above the base.

7. A jack comprising a base, two spaced side supports, and a spring pressed holder arranged to removably secure a shoe in position selectively against one or the other of said supports, and a stop device positioned between said side supports adapted to engage the bottom of the shoe when the latter is in position against either of said side supports.

8. A jack comprising a base, two spaced supports extending vertically above said base and spaced transversely thereof, each adapted to support one side of a shoe with the opposite side thereof accessible for operation thereon, means for removably securing said shoe in position in engagement with either of said supports, said means comprising a pivoted shaft having an elevated portion above said base, and a jack pin carried by said elevated portion and projecting toward said spaced supports.

9. A. jack comprising a frame, a pivoted shoe holder on said frame having means to support a shoe in a substantially vertical position, a shoe support positioned on said frame for engagement by the side of a shoe mounted on said holder, and spring means for moving said holder and the shoe mounted thereon and for releasably holding the shoe in engagement with said support.

10. A jack comprising a frame, a pivoted shoe holder on said frame, a shoe support positioned on said frame for engagement by a shoe, a stop device, and spring means for moving said holder and a shoe thereon selectively in different directions toward said support and against said stop device 12. A jack comprising a base, a shoe holder supported on said base, a support, a last pin on said holder projecting forwardly thereof toward said support whereby a last can be mounted on said pin so that a shoe carried thereby can be supported in vertical position against said support, a post on said base, and a last pin on said post having a horizontal portion so that a last and a shoe carried thereby can be mounted thereon in vertical position with the heel portion of the shoe uppermost.

HARRY KAKIDES. JOHN H. VEGESSY.

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