US588718A - Francis a - Google Patents

Description

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UNITED STATES l PATENT FFMIE.4

FRANCIS A. MILLS AND JAMES MUNDELL, or PHILADELPHIA,

. PENNSYLVANIA.

LAST.

SPEcIFIcA'IIoN forming part of Letters Patent No. 588,718, dated August 24, 1897. Application tiedlAprn 13, 1896. Renewed my 4, 1897. serial No. 645,852. (No man.)

To a/ZZ whom t may concern:

Beit known that we, FRANCIS A. MILLS and JAMES MUNDELL,citizens of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented new and useful Improvements in Lasts for Boots or Shoes, of which the following is a specification.

Our improvement consists in providing the wooden last with a metal heel-pin by which it is held and manipulated on the jack-or nailing-machine, whereby the shoe may be completed on one and the same last. Y As now practiced in the tradethe wooden last is used in the manufacture of boots and shoes and is formed with the heel-socket, for the j ack-post. In this work the shoe is lasted on the wooden last, and this last is then withdrawn from theshoe with much ltrouble and an iron last is inserted in the shoe with much trouble for the purpose of heeling the shoe in the nailing-machine. This changing of lasts not only involves a loss of time, but disiigures the shoe and increases the cost of production.

Our improvement gives greater strength to the wooden last and permits the Vshoe to be both lasted and heeled thereon in much less advantage that every last has its own guide?I support, which gives the same distance from the bottom of the heel ofy the last to the endof the guide-pin, so that when' the lasting or heeling machine is once set it is ready and set for every last.' Y f The accompanying drawings show, in Figure l, our improved last partly in vertical section. Fig. 2 is aside View of the same; and Fig. 3 is a vertical section showing the manner ofsecuring the guide-pin and the heelplate and locking them together and to the last, so that neither the heel-plate nor the guide-pin can work loose.

The last has the usual iron plate a, which covers the surface ofthe heel and against which the nails'are driven into the heel of the shoe. Centrally piercing this heel-plate is' a screw-threaded hole b, and the last is pierced with a hole c coincident with the hole in the heel-plate. The guide-pin cl for the last is driven tightly into the hole in the last and is screwed into the heel-plate and extends above the cone of the last a Sufficient distance to form the support and guide for the last in the lasting or nailing machine, which, it Will be understood, is provided with a Suitable socket to receive the last-pin. To prevent the screw guide-pin from turning and becoming loose 4in the last, it is locked by a ping, driven lthrough ahole in the last and through a hole in the guide-pin and clenched upon Washers at the sides of the last, as seen in Fig. 1.

The last is recessed to receive the heel-plate, and in driving the guide-pin into the screwthreaded hole of Said plate the latter would be liable to be turned out of true position with vthe heel and to break the shoulder of the heelrecess. To prevent the turning of the heelplate, it may be either fastened by screws or it may be provided with spurs h on its inner side, which pierce the last and hold the plate against the force of screwing the guide-pin into it; but when the heel-plate is seated and the last-pin screwed into it and locked by the 4clenching-pin the heel-plate will be firmlyl held upon its seat and the guide-pin firmly secured in the last. This construction produces a solid wooden last, and it produces a last which has its own guide-pin for the nailing-machine, and on this wooden last the shoe is both lastedand heeled, and this is the important feature of our improvement. I

The improvement is important because it adapts the Wooden last forpruse with the automatic nailing-machine,where the exact measurement for the nail to be cut is Inaintained for every last, because the distance from the nailing-surface of the heel-plate to the end of the guide-pin is the same in every last and vts the adjustment of the nailingTmachinc when once made. The improvement avoids the necessityfor using adjustable heel-posts in the nailing-machine, itavoids the use of metal bushings or of metal socketfblocks piercing the heel, and it avoids the use of heavy iron lasts formed with projecting heelstems which have been proposed for usewith a socketLholdin g part on the nailing-machine,

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and it provides a cheap and light last for all the work of making the shoe and for use` with any lasting or nailing machine orjack.

the last, as seen in Figs. 2 and 3.

When the last is provided with the usual yoke f for strengthening the heel which sustains the force of the blows in nailing on the heel of the. shoe, the pin g, which locks` the last guide-pin from turning, serves also as the means of securing the strap over the cone of The guidepin for the last may also be provided with a shoulder e,which,when the guide-pin is driven home in the screw-socket of the heel-plate, will abut upon the coneA of' the last or uponthe strap and thereby cause the heel-plate to be drawn upon its seat and clamped and held flrml y in place when the guide-pin is locked.` This construction produces acheap, strong, and durable wooden last for the work of" lasting and heelingp the shoe, foritwill be seent that the force of the blows of the nailing-machine will be borneentifrely by the iron` heel guide-pini.

The-screw-socket of the heel-plate is formed ina bossV to give a proper hold for the guidepi'n.

It i'snot deemed necessary to show the post or arm of the nailing-machine, but it will be unflerstoodA that it is provided with a socket adapted to receive theguide-pin of the last and that it has a pinr adaptedl` to.` enter a hole e' in thelast for the purpose or"` holding the last rigid with the machine'and causing, the last and' the machine toI turn together as the position of the machine is changed orshifted laterally for right andleft heeling.

The screw connection of the last guide-pin and heel-plate is preferred, but the guide-pin andf heel-plate may be riveted together or otherwise secured, so that they will be as a' single piecewhen secured in the last, and two or more clench-pins may pass through. the last and its guide-post, sothat as an article of manufacture our Wooden last takes the` place-of the two lasts now used in the trade for'l'asting and heeling shoes;

11. The combination, with a wooden last havin gia metallic heel face-plate, pierced with ascrcw-threaded hole, of a guide-pin having a screw-thready for engaging said heel-plate andpassingthroughtheheelterminates above l its cone, for the purpose stated.

2. The combination, with a wooden last having a metallic heelface-plate pierced with a screwthreaded holle and a yoke-strap embracing the cone of the last, of a guide-pin having a screw-thread for engaging said heel- 'plate and passing through the heel and its yoke-strapterminates above its cone, pro- 1 vided with a shoulder for engaging said yokestrap, whereby to clamp and rmly secure the heel-plate.

3. The combination, with a wooden last having a metallic heel face-plate pierced with la screw-threaded hole, of a guide-pin having a screw-thread for engaging said heel-plate i and passing through the heel termfinates'above (its cone and havin-gy a` shoulder adapted to engage the cone ofthe last, and a clench-pin Ipassing through the last and its guide-pin j substantially as described.

its cone and means for locking, said' guide-pin Vand last together, for the purpose stated.

' 5. The combination with a Wooden last having a metallic heel face-plate and anyoke embracing the cone of' the heel-of a guidepin for the last passingthrough the yoke-strap at the coneof the heel and?, having a shoulder for engaging said yoke-strapand' having also a screw for engaging a threaded hol'e in said heel-plate, and a `pin passing through the yoke- `strap and through the guide-pin f'orthe` purpose stated.

6. rPhe combinatiom. with a wood'en last havinga metallic heel face-plate pierced.' with a screw-threaded hol'eandI having spurs onits inner facefor engagingthe last, of'a guidepin for the lasthaving screw-threads"for` engaging said' heel-plate, and a pin passing through the said guide-pin for the purpose stated: v

7. The combination', withwoodenlastxhaving a metallic heel'face-plate, ametalli'c guidepin' locking fitncsses z GEO. G. ZIEGLER EUGENE ZIEGLER.

l 4. The combination,A with aA woodeu` Past.' l having metallic heel face-plate, pierced' with ia screw-threaded' hole, ofa guide-pin havin-g fa screw-thread for engagingI said heel-plate; and passin gthrough the heelterminatesabove pin` rigidly secured to saidE heel-plate,,passingl ICO

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