US584192A - Lasting-machine - Google Patents

Description

(No Model.) 2 SheetsSheet 1. A. P. PRESTON. LASTING MAGEINE Patented June 8,1897.

(No Model.) 2 8heets Sheet 2. A. P. PRESTON. LASTING MACHINE. No. 584192. Patented Juile 8,1897.

IUHHHHHIHIHH W NESSES: M! B x 15 fl W j Mr M a? MW? UNITED STATES PATENT @rricn.

ALBERT F. PRESTON, OF BOSTON, MASSACHUSETTS, ASSIGI OR TO THE GUSELII LASTING MACHINE COMPANY, OF NASI'IUA, NEIV HAMPSHIRE.

LASTING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 584,192, dated J nne 8, 1897.

Application filed July 15, 1896 Serial No. 599,223. (No model.)

To aZZ whom it may concern.-

Be it known that I, ALBERT F. PRESTON, of Boston, in the county of Suffolk and State of Massachusetts,have invented certain new and useful Improvements in Lasting-Machines, of which the following is a specification.

This invention has relation to machines for smoothing and laying the edges of the upper of a boot or shoe over the sole of the last.

The object of the invention is to provide simple means for engaging the upper at the toe or at the heel, or both, so as to draw it taut around the last and lay it properly over the same prior to the sole being secured thereto.

To these ends the invention consists of a machine equipped with those devices and formed with those features and characteristics which I shall now proceed to describe in detail, and point out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, and to the letters of reference marked thereon, the same reference-characters indicating thesame parts or features, as the case may be, wherever they occur.

Of the drawings, Figure 1 shows in side elevation one form of a machine constructed in accordance with my invention. Fig. 2 is a front end elevation of the same. Fig. 3 is a plan view. Fig. 4 is a section on the line 4. at of Fig. 1. Fig. 5 is an enlarged section on the line 5 5 of Fig. 1. Figs. 6 and 7 illustrate the two positions which the heel-smoothing plates assume.

In carrying out my invention I employ a standard or, having a flange or circular bed b, on which is mounted the frame 0. This frame 0 has a circular base d, fitting upon the bed I) and pivoted upon a stud e, extending through the standard.

The bed has two or more apertures f, in each of which is placed a cylindrical latchhar g, which is thrust upwardly by a spring 71 The circular base d of the frame is provided with a catch consisting of an aperture c, which may be brought into alinernent with either of the latches so that the latter may be moved into engagement therewith to lock the frame to the standard.

In the aperture 1 is placed a movable pin j, which will allow the latch to slip freely therein, but which can be depressed by the fingers to such an extent as to force the latch out of the catch and permit the frame to be revolved. The latches are semispherical or rounded on their upper ends to permit their easy disengagement from the catch. Preferably there are two latches, which are arranged diametrically opposite each other, but, if desired, three or more maybe employed.

The frame is provided with two carriers for the smoothing-wipers, one of which is movable toward and from the other.

It indicates the stationary carrier, and consists of a post extending up from the lower bar 1' of the frame. It has a head m hinged thereto by a bolt or pintle n and adapted to be held in any adjustment by a set and ad justing screw 0, passing through a lug 22, extending out from the post and bearing against the under side of the head.

q q are set-screws passing through ears on the head and bearing against the post.

Upon the head m I mount the wipers, which I shall hereinafter describe.

The movable carrier '1' slides in a groove in the frame-bar Z, and has tongues 3 extending thereinto. For sliding it I provide rack-bars t t, each pivoted on one side of the carrier 7:. to the pintle or bolt 71, and pinions u a, meshin g with the teeth on the said bars. The pinions 11. age secured upon the ends of a shaft 1 which acts as a pintle for the hinged head a of the carrier, and on which are secured larger gear-wheels w, meshing with driving-pinions 00 on the shaft y, extending through the carrier. Power is imparted to the shaft 3 by a crank x, which is adapted to be turned by hand. The rack-bars rest upon and are sup ported by the shaft 3 and are held against lateral vibration by the pinions or gear-wheels w and no.

lVhen the crank is revolved, the rotation of the pinions causes the carrier 7 to advance toward or, retreat from the stationary carrier lo. I

The head a is hinged, as aforesaid, to the movable carrier by the shaft o and held in its adjusted position by set-screws b I), similar to those at q q.

Referring more particularly to Figs. 3, 5, 6, and 7, it will be seen that the wipers before referred to consist of two loosely-mounted or loosely-pivoted wipers c c on the stationary carrier and two corresponding wipers d cl loosely mounted onv the movable carrier. The wipers or plates 0 c are held on the head m by a cap-plate e, which has a curved recess in the front edge. They are complements of each other and are quadrangular in form, save as to a curved recess f at the front inner corner. Each one is loosely pivoted at the front outer corner of the head at the extreme edge of the plates, slightly back of the curved edge, by a pin g, and has a large central aperture through which passes one of the screws h, which secure the cap-plate e e to the head, each screw being surrounded by a sleeve 7 One of the plates has a dowel-pin extending into an aperture in the other to cause them to move in unison.

Then the wipers c c are in the position illustrated in Fig. 6, the recesses f f together form a curved recess as great in width as the heel of the largest last over which the edges of the upper are to be smoothed, so that when pressure is exerted toward the rear the plates automatically swing on the pins 9 and the front portions j approach each other, while the rear portions separate, the curved recess contracting, as will be seen in Fig. 7.

The screws 7t and sleeves i, passing through the apertures 7t" 70, form stops to limit the movements of the plate.

The wipers d d on the movable carrier are similar to those at c 0, except that they are reversed in position, so that the recesses Z are toward the rear. They are pivoted at 'm similar to the wipers c c and are limited in their play by screws 91. and sleeves o.

The last A, over which the upper is to be stretched and smoothed, is supported on rolls 1) p and q q, one at the heel and the other at the toe, the latter being provided with-a rubber rim (1 and the other being of steel. The rolls q q are mounted on a pin or bolt 0', which extends through a vertical bar 5, adapted to slide vertically in a tube or socket t, extending up from the movable carrier 7'. The bar has a flange to, between which and the tube t is placed a spiral spring 0, which tends to hold the rolls in an elevated position.

For adjusting the bar 5' it is formed with a conical recess 10, into which the tip of a conically-pointed screw 0: extends, the latter being tapped into an annular flange projecting at right angles to the tube t. By forcing the screw inward the conical point thereon enters the recess w and, bearing on the converging walls thereof, draws the bar 3 downward. The roll 19 is similarly mounted on a springheld bar a extending down into an annular bearing b in the frame-bar Z. It, too, is provided with a conical recess to receive the conical tip on a screw 0 extending into the bar 1.

The last is placed upon the rolls 1) and q, with the heel in line with a V-shaped recess in the rear head m, the wipers having their it automatically taut against the wipers.

edges parallel to each other, as shown in Fig. 6, so that the curvedrecesses are expanded. Then the crank is turned to cause the pinions to coact with the rack-bars for feeding the movable carrier toward the stationary carrier. The edges of the upper, which extend upwardly from the last, are engaged by the curved edges of the wipers at first, as shown in Fig. 7, and as the movement of the carrier continues the wipers automatically swing on their pivots to contract the edges of the curved reeesses,with the effect of drawing the upper taut and smooth over the last, both at the toe as well as at the heel. Thus the action of the wipers is not only to draw the leather in the longitudinal lines of the last, but they subject the edges of the upper to a drawing action in lines substantially radial to the center of the curve of the toe or heel, as the case may be. As the carrier moves to cause the smootlrplates or wipers to contract the recesses therein for the smoothing or wiping of the edges of the-upper, the last is moved vertieally as well as longitudinally.

The roller 1) is stationary relatively to the frame, while the rollers q advance with the movable carrier. The last is shaped as shown at B, with a portion inclined relatively to the longitudinal line of the last, so that the advance of the last and the movable carrier causes the last to ride over the roller 1) to force At the same time the toe of the last enters between the rollers q and wipers cl, and the converging sides thereof cause the edges of the upper to be firmly pressed down upon the last by the said wipers. Thus it will be seen that the last is not only moved so as to cause the wipers to draw the edges of the upper firmly over the last,but is also simultaneously forced vertically against the wipers to hold the said edges firmly upon the last. After the leather has been smoothed over the toe and the heel, as illustrated in Fig. 3, the remainder thereof is drawn taut over theremainder of the last in the usual way and then tacked thereto.

From the foregoing it will be apparent that the wipers are automatic in their action and are likewise self -adjustingthat is to say, they may be used for any size of the same style of last that is being used. If a relatively narrow last is employed the curved edges f of the plates will be thrown inward to contract the recesses and thereby conform to the shape of the toe or the heel, as the case may be. It is likewise apparent that the wipers may be easily removed and replaced by others having differently-curved edges to correspond to the style of shoe that is to be manufactured, and also that the plates may be mounted upon only one carrier and the other carrier serve as an abutment for the last:

The heads on which the wipers are mounted are adjustable about their horizontal pivots,

so as to have the said plates lie in the plane of that part of the last, either at the toe or the heel, over which the upper is to be turned and drawn.

Having thus explained the nature of the invention and described a way of constructing and using the same, although without attempting to set forth all of the ways in which it maybe made or all the modes of its use, it is declared that what I claim is- 1. A machine for drawing an. upper taut over a last, c-omprisin a stationary carrier, against which the last may be pressed, a movable car-,

rier, two complemental wipers loosely mounted on said movable carrier, and means for mov ing said movable carrier toward the stationar carrier whereby the wipers are operated only by the engagement therewith of the last and upper.

2. A machine for drawing an upper tautover alast, com prisin ga carrier, two complemen tal wipers loosely mounted on said carrier and operated by the engagement of the last and upper therewith, and means for forcing said last and the upper and said wipers together to cause their operation.

Amachine for d rawingan upper tautover a last, comprising two carriers, a pair of complein ental wipers loosely mounted on each carrier, one pair of wipers for the toe and the other pair for the heel, and means for drawin g the carriers together to bring the upper at the toe and the heel of the last into engagement with said wipers, whereby said wipers are simultaneously operated only by the engagement therewith of the last and upper.

4. A machine for drawing an upper taut over a last, comprising in its construction a frame having a stationary carrier, a movable carrier, means for sliding the movable carrier toward and from the stationary carrier, one of the said carriers adapted to act as an abutment for the last, and means on the other of said carriers for wiping the edge of the upper over the last transversely as well as 1ongitudinally thereof, consisting of two complemental loosely-pivoted wipers, which operate auton'iatically as the upper on the last forced longitudinally against them. a

5. A machine for drawing an n pper taut over alast, comprising a carrier, two complemental wipers loosely pivoted on said carrier, each wiper having its inner corner cut away and being pivoted at its outer edge, and means for forcing a last and upper against the two wipers to swing them back on their pivots and thereby force their front ends over the last.

'7. A machine for drawing an upper taut over a last, comprising a carrier, two complemental wipers loosely pivoted on said carrier, each wiper having its inner corner cut away and being pivoted at its outer edge, means for forcing a last and upper against the two wipers to swing them back on their pivots and thereby force their front ends over the last, and means for causing said wipers to move in unison.

8. As a means for drawing the edges of an upper over a last, two complemental plates loosely pivoted at their outer edges, and havin g inner curved edges which are adapted to approach or recede from each other,and means for forcing the last longitudinally against said curved edges, which causes the automatic operation of said plates.

9. As a means for drawing the edges of an upper over a last, a rest for the last, a carrier, and two separated plates loosely mounted on the carrier, said plates having oppositely-disposed curved edges, and operated only by their engagement with the last.

10. A machine for drawing an upper taut over a last, comprising a carrier, two complemental wipers loosely pivoted on said carrier, each wiper having its inner corner cut away, and being pivoted at its outer edge, means for forcing a last and upper against the two wipers to swing them back on their pivots and thereby force their front ends over the last, and a relatively stationary rest below the wipers on which the lastis placed, and which automatically coacts with the curvature of the last to jack the sole thereof vertically against the wipers.

1 1. A machine for drawing the edges of an upper over a last, comprising in its construction a frame having a carrier, loosely-pivoted wipers on said carrier for the heel a movable carrier, wipers loosely pivoted on said carrier for the toe. a roller relatively to which the last is'moved, said roller engaging said last to force it vertically, and means for forcing the movable carrier toward the stationary carrier whereby the last is automatically jacked vertically an d the wipers are automatically operated.

12. A machine for drawing the edges of an upper taut over a last comprising in its construction loosely-pivoted wipers for the toe, loosely-pivoted wipers for the heel, and means for forcing the one set of wipers toward the other set of wipers, whereby both sets of wipers operate simultaneously and automatically.

13. A machine for drawing the edges of an upper taut over a last, comprising in its construction, loosely-pivoted wipers for the toe, loosely-pivoted wipers for the heel, a roller below the horizontal planes of the wipers, and means for automatically and simultaneously operating the wiper and sliding the last upon the roller to jack it against the wipers.

14. A machine for drawing the edges of an ITO upper taut over a last, the combination with name to this specification, in the presence of two loosely-mounted oppositely-acting wiptwo snbsc-rii'iing Witnesses, this 6th day 0f 10 GTS, of means for engaging the last with the July, A. D. 1896. wipers and moving to jack it simultane- ALBERT F. PRESTON ously, whel eby sald wlpers are automatlcally operated by the en gagem ent therewith of said Witnesses: last. A. D. HARRISON,

In testimony whereof I have signed my ROLLIN ABELL.

Images