US1630788A

US1630788A - Box-toe shoe

Info

Publication number: US1630788A
Application number: US669948A
Authority: US
Inventors: John J Daly
Original assignee: Individual
Current assignee: Individual
Priority date: 1923-10-22
Filing date: 1923-10-22
Publication date: 1927-05-31
Anticipated expiration: 1944-05-31

Description

` A l: r May 31,1927. M. DALY i 63o 78s BOX TOE SHOE Filed Oct. 22. 1923 2 Sheets-Sheet l John fZlZy.

J. J. DALY Box TOE s-HOE May 3l, 1927.

Filed Oct.` 22. 1923 2 Sheets-Sheet 2 jvvercor, Jaim cfazy.

(I Sltented May 3.1, 192,7.v l I i l. @En J. ijararoii-armilllummn' n.sE.mes.l l .l i A l This invention relates to the manufacture with" a. `thermo-plastic material, which is of box toe shoes, and particularly t the normally hard, but is adapted to be softened method of uniting. the usual thermo-plastic by heat, i'whereupon the insole so coated is box toe blank to'the .toe tip and insole. ltacked tothe last and the last -lacedf'in the 60 Heretofore, the accepted practice has been usual box toe heater, where the ox toe blank to temporarily anchor the box toe, when is softened so that it may be pulled over the softened, to the toe tip and insoleby driving toe and sides of the last in the pulling over' l a pair of anchoring tacks'in the last and machine andthe blank, toe tip and lining connecting said tacks by a bindin wire temporal-i1 tacked to the last to hold them 65 io which extends around the toe'loft e last in place. he heat from the box toe heater andA compressively retains the toe tip and -lS' .applied against the box blank at a box plank in position, y point remote from the insole, so that tthe This method is open' to the objection that t ermo-plastic coating on the insole'rib is whenthe shoe is passed to the welter, these not affected by this heat application. After 70 -15 anchoring tacks are frequently 4Aunobserved' the box toe blank and toe tip has come from Vand are not withdrawn, with the result that the pulling over machine, the shoe is nex't in welting the needles frequently strike them placed ini-a steamer which softens'f'th'e entire and are broken. -Moreover, the operation of toe, includin the thermo-plastic coating on driving the anchoring tacksand fxingthe the insole ri so that this coating will ad-y 75 -20 binding wire in position and of subsequent` lhere to the lining, as will the now softened ly removing them represent additional opbox toe blank,v when the S1106 iS placed in.I erations which add to the manufacturing the bed lasting' machine and the t0@ wiped-` cost of the shoe, as does the expense of the in. The toe wipers may be set in this posianchorin taclm and wire. l tion while an air blastr is directedovertlie 80 25 I avoi these objections by dispensing en.V toe from the inside so as to chill and harden tirely with the use of the anchoring tacks the adhesive and cause the parts' to be hrmly 'and binding wire so that the lasted toe may united to each other. During this hardenbe passed from thepulling over machine to ing step, the operation of ulling over the i the welter without requiring the interven-fl'lppl all the heel and m0 ing it may be 85 70 ing operation of withdrawing the tempo# performed. y

rary anchoring tacks and removing the bind- This particular method ofy operation is ing Wire. e l specically illustrated in the accompanyinrr Broadly, my invention utilizes the. indrawings, but it is to be understood that herent adhesiveness of the ordinary thermosuch showing is purely for'the purposes' of 90. 5 lastic box toe blank, when softened, as a this application and in no way limiting. LIn inder to hold the' box toe blank, insole and t e drawings: toe tip together, and consists in lmechani Fig. 1 is aplan view of aninsole having cally hardening, as by chilling, the softened the rib or'lip thereof coated around the enbox toe blank after it has been pulled over tire toe with a thermo-plastic material' 95 D the toe tip and wiped in whereby to firmly which is normally 'hard but may be softened set the adhering parts, so that the shoe may by heat. f be passed at this stage directly to the welter. Fig. 2 shows said, insole tacked vto a last f is chilling or hardening operation may upon which the upper,l linings and'v box toe l be conveniently performed while the shoe is blank have been assembled for treatment at ..1100 still in the bed lasting machine, so that the the box toe heater. operator may be lasting the heel While the Fig. vshows'the lasted bx toe after it has toe is hardening. Preferably the parts,y are been removed from the box toe heater of' caused to set by admitting a blast of /cold Fig. 2 and passed .to the pulling over maair from an air nozzle directly upon them chine. from the inside of the formed toe. A, Fig. 4 shows the lasted box toe removed In the more specific adaptation of my inf from the pulling over machine of Fig. 3 and vention which I shall discuss herein as i'lplaced in a steamer to soften the thermolustrative of the principles involved and as plastic material of both the box toe blank showing a method which commends itself and the insolerib so that they will adhere 110 to accepted standards of manufacture, the to the toe tip when the box toe blank and tip outer face of the insole rib is first coated are wiped in. A

Fig.

from the steamerof Fig. 4 and placed in the bed lasting machine and the toe wiped' in-to formed toe preferab y cause the toe blank, linings and insole to adhere to each other, and

Fig. 6 is a section on the linev 6-6 of Fig. 5, showing one method of hardening the thermo-plastic coating of the box toe lank and insolerib to cause the parts to adhere to yeach other when set.

- I have indicated at 1 aninsole 'of conventional t pe provided with the usual marginal ri or lip-2. which is initially coated along its outer face with a thermo-plastic material 3 (Fig. 1) which is normally hard,

but is adapted to be softened by heat. This coating Sextends around the entire toe area l shown in Fig; 1,

i' the last isplaced in the of the insole coextensive with the area ineluded by the box toe blank 4 'shown in Fig. 2. l

4The insole 1, after being pre ared as i is tacked to the ast L as indicated in Fi 2, and' the toe tip 5, box toe blankfl an the usual linin 6 are assembled upon the last. VvThe ast is next a box toe heater 7 of usual construction, in. which the thermolfplastic material of the box toe blank, which at this stage is simply a flat, stiff piece of material, is softened, so that the box toe blank may be pulled over the toe and sides of the last when plulling over machine, shown in Fig. 3. T e heat from the box toe heater is applied to the box toe blank at a point remote rom the insole so that this heat application has no effect upon the thermo-plastic coating 3 ofthe insole rib.

After the box toe blank has been Sulliciently softened by the heating step shown in Fig. 2, the lasted box toe is removed to the pullin over machine (Fi box toe b ank and upper an' linings are pulled over the toe and sides of the last by the gripper jaws 8, and temporarily tacked to the last at three points, as indicated at 9. The next step' in my method consists in removing the lasted box toe from the pulling over machine'and placin i't in a

steamer

10,5 Fig. 4, which softens bot i the box toe blank and the thermo-plastic coating 3 of the insole rib, so that the linin s 6 will adhere, respectively, to the box toe lank, toe tip and the insolev rib, whereupon the lasted box toe -is removed from the steamer and 'placed iny a bed lasting machine, Fig. 5, and the toe` wiped in by the toe wipers 11 so as to -press the box toe blank, linings, and insole to each,y other. l

The toe wipers may be set in this. osition while the softened coating of the ox toe blank and insole riby are hardened in any 5 shows the lasted box toe removed 3) and the latam suitable manner, as by chilling. In the hard- -ening step, a blast of air `from a valved de.

livery nozzle 12 (Fi 6) is directed over the y 4 interiorly thereof, ythe nozzle 12 being shaped toconform to the inside contour 'of' the formed toe, and being supplied with air under pressure from any suitable supply source. While the toe is being set the operative may be pulling over p My method thus not only avoids the use of 'the usual temporary anchorinv tacks and binding wire andclfects a considerable saving in both time and labor, but provides a box toe in which the toe blank, toe tip and insole are permanently-united to each other throughout their mutuallyontacting surbox toe'which a 'normally stiff thermoplastic material, in temporarily positioning to which is lasted a box saidinsole on a last invention a portion of the' toe area the, upperv at the heel thereof and tacking it as indicated in Fig. 5'. i

toe blank of normally stiff thermo-plastic material and a toe tip, in applyin to the box toe blank heat in a de ee su cient to soften said blank but ins cient to injure ing of the insole, in pulling over the softened the toe tip or soften the thermo-plastic coat box toe blank and the toe tip and temporarily tacking them tothe last, 1n subjectin the lasted box toe to a heat application su cient to again soften the box toe blank and to also soften the. thermo-plastic coating of the insole,` in wiping in the formed toe while so l softened whereby to cause thebox toe blank, toe tip and insole to adhere to each other and in subsequently hardening the softened thermo-plastic coating of the box toe blank land insole to cause thebox toe blank, toe tip and insole to intimately' unite with each other.

blankandthe insole rib are in a softened condition, .and subsequently cooled to cause it to intimately unite Vwith the toe tip and softened coating of the insole rib.

In testimony whereof I affix-m signature.

JOHN DALY.

A11o 29A shoe comprising an insole having a I