US1060967A

US1060967A - Lasting-machine.

Info

Publication number: US1060967A
Application number: US71022712A
Authority: US
Inventors: Arthur Bates
Original assignee: United Shoe Machinery Co AB
Current assignee: USM Ltd; United Shoe Machinery Co AB
Priority date: 1912-07-18
Filing date: 1912-07-18
Publication date: 1913-05-06
Anticipated expiration: 1930-05-06

Description

A. BATES.

LASTING MACHINE.

APPLICATION FILED JULY 18, '1912.

1,060,967. Palten ted May 6, 1913.

3 SHEETS-SHEET 1.

A. BAIT-ES, LASTING MACHINE.

APPLICATION FILED JULY 18, 1912.

1,060,967. Patented May 6,1913.

3 SHEETS-SHEET 2.

A. BATES.

LASTING MACHINE.

.APPLIOATION FILED JULY 18, 1912.

v 1,060,967. Patented May 6,1913.

3 SHEETS-SHEET 3.

the spirit of the invention.

UNITED STATES PATENT clarion.

ARTHU R BATES, LEICESTER, ENGLAND, ASSIGNOR T0 UNI IED SHOE MACHINERY COMPANY, PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

To all whom it may concern Be it known that I, ARTHUR Barns a subject of the King of England, residing at closed in the United States Letters Patent N0 58t,74=4,- granted- June 15, 1897, but it isfto' be understood that the invention is not limited in its application to such type as it could be embodied inother types of pincerla'sting 'machines without departing from The machine of the said prior patent comprises pincers and mechanism for imparting to the pincers an u'pdraw' motion to pull the upper about the last-and an overdraw motion to lay the pulled upper" down upon the last; and at certain parts of the shoe the pincers are given a plaiting mot-ion to plait the upper.

In the said machine the plaiting motion of the pinccrs is a compound motion made up of a turning or twisting motion as well as a lateral motion. but it is to be understood that herein the term plaiting motion of the pince'rs is intended to cover either the twisting motion alone or the lateral motion alone as wellas the compound motion aforesaid. In the said machine the plaiting motion is begun during the overdraw motion. I have found that better results will be obtained if the overdraw motion does not start until after the plaiting motion has begun. The advantagesof this will be appreciated when it is considered that in the use of this type of lasting machine the upper is updrawn without bending it over the edge of the shoe bottom. and therefore-the upper is free to be drawn laterally at and below the shoe edge by the. plaiting motion of the pinccrs if that motion is initiated before the overdraw bends the upper across the shoe edge. This permits en 'h plnit ng oqn ration. whether it includes a lateral movement of the pincers or a twisting imn'tn'ltmt or a combined lateral. and twisting movement as Specifieaflbnof Letters Patent.

Application filed July 18, 1912. Serial No. 710,227.

'LAs'rme-maciimn Patented May .6, 1913.

herein shown, to affect more stock or to accomphsh more work intaking care of surplus stock than was the case in the machine of the prior patent; Also by starting the plaitmg motion earlier in the cycle of the maehmes operation there is better assurance that' the plait or and will be carried across the ath of the taclecarrier-and that the tack Wlll-bB delivered upon anddriven through the plait.

Aecordmglyn feature of the present invent on 1s a pincer-lasting machine that is adapted to operate'successwely upon different portions of the mar o a shoe upper and that comprises mec anism for imparting to the pincers an npdraw motion, an overdra'w mot-ion', and a plaitin j'motion which is initiated prior to the over raw motion or both prior to the overdrawmotion and during the updraw motion. And preferably, although not necessarily, the plaiting motion continues after the overdraw motion is com leted.

Another eature of this invention consists inthe combination with .pincers and operating mechanism therefor, of a tack carrier and operating mechanism for advancing the carrier over the shoe step-by-step with a pause between steps. As herein shown the tackcarrier is made to cooperate with the described pl aiting mechanism in an important way by advancing into engagement with the edgeonly of the shoe bottom, soon after the beginning of the plaiting movement of the pincers to press into smooth condition the upper over the edgev of the shoe bottom and to hold the stock from wrinkling at the edge while the plait is completed. After the plait is formed in front of the tack carrier, the carrier completes its advance, rubbing down the plait to compact it, and delivers the tack over the plait through which it is then driven.

In lasting the toe or other curved parts of the boot by hand it is usual for the workman to seize the margin of the upper with the pincers and repeatedly to wriggle or twist the pincers to right and left until all the fullness of the upper is taken care of.

It is an object of the present invention to improve the mode of operation of the machine so that it approximates more closely than heretofore to the aforesaid hand operation of the workman.

To thi end an th r feature of the invention is a pincer-lasting machine that is adapted to operate successively upon different portions of the margin of a shoe upper and that comprises mechanism 'for impartin to the pincers a plaitin motion a plura ity of times during eac operation of the machine.. i a

In the accompanying drawings which illustrate four positions which the pincers occupy during the lasting operation as modified in accordance with a feature of the pres ent invention :-Fi ure 1 shows the pincers in aposition in which, after having gripped the upper,'they have started upon their updraw mot-ion; Fig. 2, shows the incers at the end of their updraw motion, t eir plait ing motion having begun; Fig.3 shows the pincers at the end of their overdraw motion, their plaiting motion having twisted them slightly farther from the position shown in Fig. 2 and thetack' carrier "advanced one step to upper holding position; Fig. 4 shows the .pincersat the end of their plaiting motion and the tack carrier advanced its final .step to tack-delivering position; and Fig. 51s a perspective'view of the operating mechanism of 'themachine.

In a preferred construction of machine-ac cording to the present invention the 'pincer5 operating mechanism comprises a cam-operated lever 20. for effecting the updraw mo- .tion of the pincers, a cam-controlled thrust rod 16 for giving to thepincers their overdraw motion, and a cam-oscillated driver 17 for imparting the twisting and lateral movements. that constitute the plaiting motion of the pincers. These parts may ;be substantially the same in construction as thosede scribed in the specification of the prior pat-. ent aforesaid, but according to the present invention the opera-tion of the parts is modified by the angular displacement of the cam surface 1 of cam block 2 that effects the plaitingmotion of the pincers, in relation to the cam surfaces3 and 14 that imart to the pincers the overdraw and updraw motions; This displacement is such that the plaiting motion will begin before the overdraw motion occurs and preferably the cam surface 1 for the plaiting motion is so disposed in -relation to that for the updraw motionjthattheformer motion begins during the occurrence of the latter. If desired, the cam surface .1. for the plaiting motion may be modifiedsoas tocause that motion to continueafter the overdraw motion is completed,

In order that the plaiting motion may be repeated a plurality of times during the operation of themachine to produce a wriggling motion of the pincers for the purpose herembefore stated, the cam surface for imparting the plaiting motion, in accordance with a preferred construction embodying the present invention, is provided with a plurality of undulations so as to actuate the plaiting mechanism several times during one rotation of the main shaft instead of; only once as in the machines as heretofore constructed.

The tack carrier,8 the lower face of which constitutes the wiper and which is actuated through the slide 32 and lever 48 bythe cam 50 may be made to advance in two steps, the first of which occurs at about the end of the updraw, Fig. 3, and has for its purpose to holdthe upper more securely than heretofore and also to avoid the extension of plaiting wrinkles to a visible portion of the finished shoe, and the second and final step occurs at the end of the plaiting movement andlays or presses the plait down and also delivers the tack in posltion to fasten the plait. These two steps are roduced b forming'the cam path in cam b ock 50 wit its offset in'two steps, see Fi 5.

The operation ofv the machine as modified in accordance with one feature ofthepresent invention is as follows:.The pincers 5 seize the upper 6 and then move upwardly to stretch it about the last as shownin Fig. -1. During. the updraw movement of the pincers and before the starting of the overdraw motion the plaitingmotion commences (see Fig. 2) and this motion continues during the overdraw motion and after that motion has stopped, as is shown in Figs. 3 and 4. The tack carrier and presser 8- of the machine then advances over the work to wipe the upper into lasted position and finally a tack from the tack carrier is. driven'by the usual driver 10 into the work to secure .the upper in place. Preferably, the timing of the severe motions of the incers is such that the plaiting motion is alf completed before the overdraw motion begins .and the latter motion is ended at or before threefourths of the plaiting motion has occurred. The tack carrier-8 advances its first step at about theend of the overdraw, Fig. 3, and

there pauses until the plaiting movement has.

been completed, or nearly so, and the pincers are about to release the upper and it then. advances its final step to tack delivering poclaim as-new and desire to secure by Detters Patent of the United States is:

' 1. A pincer-lasting machine that is adapted to operate successively upon different portions of the margin of a shoe upper and portions of the margin of a shoe upper and that comprises pincers and operating mechanism for imparting to the pincers an updraw motion. an overdraw motion, and a plaiting motion which is initiated prior to a the overdraw motion.

3. A pincer-lasting machine that is adapted to operate successively upon different portions of the margin of a shoe upperand that comprises pincers and operating mechanism for imparting to the pincers an updraw motion, an overdraw motion, and a plaiting motion which continues after the overdraw motion-is completed.

4. A pincer-lasting machine that is adapted to operate successively upon different portions of the margin of a shoe upper and that comprises pincers and operating mechanism for imparting to the pincers an up draw motion, an overdraw motion, and a plaiting motion which is repeated a plurality of times during each cycle of the operation ofthe machine for the purpose described.

5. A pincer-lasting machine that is adapted to operate successively upon diflerent portions of the margin ofa shoe upper and that comprises pincers and operating mechanism including an updraw cam, an overdraW cam and a planter cam relatively arranged for the plaiting motion to begin during the updraw motion and to continue relatively slowly through and until after the termination of the overdraw motion.

6. A pincer-lasting machine that is adapted to operate successively upon ditl 'erent portions of the margin of a shoeupper and that comprises pincers and operating mechanism including an updraw cam, an overdraw cam, and a plaiter cam, said plaiter 'cam being formed to wriggle the pincers forth and back substantially as described during the progress of the pincers late-rally for efiecting the plaiting operation.

7 A pincer-lasting machine that is adapted to operate successively upon different portions of the margin of a shoe upper and that comprises pincers and operating mechanism including an updraw cam and an; overdraw cam to work the upper into position to be fastened, and fastening mechanism comprising a tack carrier which is advanced in two steps and has a dwell after it has come into upper holding position and then a final advance to tack delivering position when the pincers release the upper.

8. A pincer-lasting machine that is adapted to operate successively upon different portions of the margin of a shoe upper and that comprises mechanism for imparting to the pincers an updraw motion, an overdraw motion and a plaiting motion, and fastening mechanism including a tack carrier and operating mechanism including a cam which is formed and timed to advance the tack carrier over the edge of the shoe bottom at the beginning of the overdraw motion and there permit a dwell and finally to advance the carrier to tack delivering position at the completion of the plaiting motion.

9. A pincer-lasting machine having, in combination, pincers and operating mechanism therefor including means for imparting an operative upper pulling movement to the pincer progressively step-by-step with a backward movement between two steps.

10. A pincer-lasting machine having, in combination, pincers and operating mechanism therefor, and a tack carrier and operating mechanism for actuating the carrier over the shoe stcp-by-step with a pause between steps into position to presenta tack for fastening the shoe upper.

11. A pincer-lasting machine having, in combination, pincers and operating mech anism therefor including means for imparting upper plaiting movements to the pincers,

and means moved automatically into engage-ment with the edge only of the shoe bottom in time relation with the beginning of the plaiting movement to hold the upper from wrinkling at the edge while the plait is being formed.

12. A pincer-lasting machine having, in combination, pincers and operating mechanism therefor including means for imparting upper plaiting movements to the pincers, and means moved automatically into engagement with the edge only of the shoe bottom after the upper is updrawn and having a dwell while the plait is being formed and for thereafter rubbing down the plait, and mechanism for so actuating said-means.

In testimony whereof I have signedmy name to this specification in the presence of.

two subscribing witnesses.

ARTHUR BATES.

Witnesses WILLIAM Tuoms BUCKINGHAM ROBERTS, FREDERICK WILLIAM WORTH.