US477789A - Lasting-machine - Google Patents

Description

(No Model.)

A. E. STIRGKLER.

LASTING MACHINE. No. 477,789.

, Patented June 28, 1892.

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PATENT OFFICE.

ALBERT EDW. STIROKLER', or NORTHAMPTON, ENGLAND, AssIeNoR TO THE CHASE LASTING MACHINE coMPnNY, on BOSTON,'MASSACHUSETTS.

LASTING-ZMACHINE.

SPECIFICATION forming part of Letters Patent No. 477,789, dated June 28, 1892.

Application filed J mm 29, 1891. Serial No. 397,815. (llomodeL) Patented in England January 30, 1890, No. 1,648. I

To all whom it may concern:

Be it known that I, ALBERT EDWARD STIRCKLER, a citizen of the United States, residing at Northampton, county of Northamp ton, England, have invented an Improvement in Lasting-Machines, (for which I have obtained Letters Patent in England bearing date January 30, 1890, No. 1,648,) of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

My invention has for its object to render machines for lasting boots and shoes more perfect and efficient in action than hitherto.

My said invention relates more especially to the class of machines such as are described in the specification of Letters Patent No. 337,925.

One part of my present invention relates to the clamp by which the toe end of the upper-leather is gripped to draw it over for attachment to the inner sole, and has for its object to give a greater grip on the leather of the'upper, and so efiect a more perfect drawing over of the leather in cases more especially where the upper-leather does not pre sent a suflicient amount of material to be efficiently held by the clamp as at present arranged or in operating with soft leathers that require a considerable amount of stretch to givethem a good appearance when lasted, and, further, to adapt the said upper plate of the clamp to receive lower plates (called toerings) of diflferentsizes and shapes.

According to my invention, I make the distance between the upper and lower plates adjustable, so that the lower plate, when the last is brought up toward the level of the upper plate, is situated so low down as to grasp between itself and' the wiper-plates below it a greater portion of the leather of the upper than is possible with the ordinary arrangement, and when the last is afterward depressed the extra amount of leather is extended above the last to be wiped in by the action of the wiper-plates. I prefer to make teeth or proj ections on the under side of the lower plate of the clamp to give a firmer hold upon the leather. The adjustment of the distance between the upper and lower plates of the clamp may be conveniently eifected by placing rings or distance-pieces between the two plates, preferably threading them upon the bolts or pins which are fixed to the lower plate and slide in the upper plate, or by nuts screwed on the bolts or pins by which theplates are connected together.

In order to make the upper plate capable of accommodating lower plates of different shapes and sizes, I may either make the pins .60

invention. Fig. 3 is an under side view of Fig. 2. Figs. 4 and 5 are plans of two differently-shaped toe rings or plates, and Fig. 6 is an enlarged detail showing one of the screw.

pins or projections i of the toe-ring. 1

Referring to Figs. 1, 2, and 3, s is a plate fitted to slide up and down the hollow cylindrical piece p of the presser. To the plate 8 there is connected, bypins or bolts a a lower plate or toe-ring 25 between which and the wiper-plates below (not shown) the edge of the upper being lasted is nipped and securely held while the last is being forced by the disk g into the upper. The toe ring or plate 25 may be adjusted to any desired distance from the upper plate 3 by interposing between the plate distance-pieces of the required thickness. In the drawings I have shown these distance-pieces as consisting of rings of metal '0 placed on the pins or bolts a springs u being interposed between the upper surface of the plates and pins or projections t on required, the pressure of the plate on the leather.

To enable toe-platesofdifferent-sizes and shapes being used with the same upper plate I provide in the said upper plate several pairs'of holes, as at 3' s, forthereception of the boltskjrpiiisit on the'diflz'erentsized toerings shown in Figs. 4 and 5, or the upper plate may have only one pair of holes and the bolts or pins u on the several toe-rings be all arranged in thes'ame positions to enter these s: he mari as are pr vided 1 he r under or bearing surface Withpins 0r projections 'i', so as to insure a firm hold on the leather While the last is being forced into the upper by the plunger g These pins or projections z are preferably formed on screws which screw into holes in'theplates 15 (see Having now particularly described-and ascertainfed the nature-oftl esaid invention and in what manner the same is to be performed,

I declare that what I claim is In clamping devices for holding the upper while the last is being forced thereinto, the

Iup'per plate provided with a series of openin s a d nter hangeabl me ng-pla of different sizes having pins thereon to enter the openings of the upper plate registering therewith, and pins or projections extending from the under side of said pressing-plates, the said pins being independently adjustable at right angles thereto toproject moreor less t er m ubstant a y a and fer the p pose" described.

In testimony whereof I have signed my name to this specification in presence of W subsc bing W nes ALBERT EDW. sr -RoKLER. Witnesses:

"G W- GRE OR A. S.'WI GA N 1),'

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