US1653075A - Leather stiffener for the heels and toes of boots and shoes - Google Patents

Description

F. C. WEICHELT ET AL LEATHER STIFFENER FOR THE HEELS AND TOES OF BOOTS AND SHOES Filed Dec, 16, 1925 2 Sheets-Sheet,l

Dec. 20, 1927'. 1,653,075

In wen +0 7.5

A} Wa $4M Dec. 20, 1927.

I 1,653,075 F. C. WEICHELT ET AL LEATHER 'STIFFENER FOR THE HEELS AND TOES OF BOOTS AND SHOES Filed Dec. 1a. 1925 2 Sheets-Sheet 2 t -+-----a- 1 so Patented Dec. 20, 1927.

testers f was erases e Are-as esrfi ce, I

FREDERICK CLAUDE 'WEIC HELT AND BERG? sale-E1, Teeaemi, oemesmisr, ,Viiq- TORIA, AUSTRALIA, Assrsnons or onn-rountrzrro ra rzr n :eL ze E rrI WEICHELT,"

OF PBESTON, VIQTORIA,;AUSTRALIA, AND ROBERT I-IOFFEB, WOODCOCK, DANDE- I NONG, VICTORIA, AUSTRALIA.

LEATHER STIFFENER non THE HEELS ANT) mess on Booms AND SHOES.

Application filed December 16,1525. ,ser'iain {755841;

edge of said stiit'eners to form a bevel orfeather edge. The object of dan'ip'ilig the leather blank before skiv'ing it is to facilitate the skiving operation and to maintain a sharp edge on the 'skiving knife. In

order to utilise said 's'tifi eners in the manut'acture of boots and shoes, the operator has first to soak them in Water tor from ten minutes to half an hour, according; to the hardness ofthe leather,to "render them sutliciently pliable to enable him to fit and'secure such stiffeners in pos tion on the heel and toe respectively 'ota boot o'rf'shoe. This operation takes time, and is even then'trequently unsatisfactory, owingto the chiliculty, of making said stiileners fit snugly in position on the heel andtoe of the boot orsh-oe. After the stitfeners' have been fitted as aforesaid, they must be allowed "to dry before the making of the boot or shoe can proceed, thus entailing further loss of time. The object of this invention is to provide I sti'i'leners which only -requ1retheir lower portio'n'to be clipped in water for from tensesends to not more than one minute,according to the hardness of the leather, instead of the whole being soaked in water tor trom ten minutes to'ha'lt an hour, as at present, before they can be utilized by the operator, and which when removed. by him from the water, can be easily and quickly applied to theheel and toe of a boot or shoe, andwhich, when applied, will fit snugly in position without,

difliculty, and dry quikly. I 7 'Our improvement in leather stiffener-s of tlie'type described for'the heels and toes'ot' boots and shoes consists of a series of equally-spaeed incisions through the skin or,

outer surtace of the stifiener at its lower marginal skived edge, said incisions extend jing from endto end of said skived portion, and inwards through said skived portion, at approximately right angles to 't'helower edge of said skivedportion. In the case of stif- 'f ene'rsffor the-heels of boots and shoes, these incisions'eXt-end i'n aliorizontaliline from end to end of the lower marginal edge he tore r'eterred to, whileyin the case 0t stitfeners for the toes of boots and shoes, they extend normally from end to end of the lower marginal edge before referred to. Stiileners made according to thisflinvention only require their lower marginal edge, haying the incisions therein, to "be clipped in ater by the operator for from "ten seconds to not more than one minute, as before explained,

the incisions permitting the Water topercostiffener, with the result that a perfect seating'is formed -for'the foundation ofthe boot or shoe, the incisions before referred to assisting materially in elfecting this result. It will be obvious that stiileners-embodying the improvement before described, 'can be made of much stouter material than is possible at present, thus rendering-the boot or shoe, -to which they'ar'e' applied, more durable. As

practicallytonly the feather edge portion in which theinci'sionsare made 1s wetted, the

stiffener-soon dries and *litlile' delay occurs in the manufactureofthe bootor shoe.

The incisions'in the stiffener-s may be made in any approved 111L1111G1','l)l1trW6 pi'elt'eiyto makethem with the aid of apparatus 'which we have invented, and -which*will hereinafter be fully described, and illustrated. 'Ihis apparatus forms the subject of an application for Letters Patent'filed by us contemporaneously herewith. p

Referring to the drawings "hereto attached 1 isa' view in of a leather blank usually employed for the manufacture of a stiffener {for the heel portion of a boot or shoe. I y

Fig; 21is a sectional View taken on lines' Fig. 3 is -a View in plan of the loathed stiffener seen in'Fig; 1,'after'thesfame has "late freely through the skived and feather edge portion ofthe stiftenerytherehy "rem-" been sk ived, in theordinarymanneiy and" the heel or seat portion.

Fig. 7 is a view in plan of a leather blank to form a stiffener for the toe of a boot or shoe.

Fig. 8 is a sectional View taken on line cc of Fig.7.

Fig. 9 is a view in plan of the toe stiffener, showing the equally-spaced and approximately radially. arranged incisions therein.

Fig. 10 is a sectional View taken on line d-ml of Fig. 9. c

Fig. 11 is a view in side elevation of the apparatus we have invented, and prefer to use for making the incisions in the heel and toe stiffener-s illustrated in Figs. 3 and 9 respectively. 7

, Fig. 12 is a view in plan of Fig. 11.

Fig. 13 is a view in front elevation of the apparatus showing the arrangement of the feed plate and the cutting and feed rollers.

Fig. 14 is a sectional view illustrating the means employed for adjusting. the position of the'lower located feed roller.

Fig. 15 is a view in side elevation of the feed roller employed to feed the heel stiff veners illustrated in Fig. 3 to the apparatus, in order that the necessary incisions may be made therein.

Fig. 16 is a view in side elevation of a feed roller having a bevel edge to make the necessary radial incisions in the toe stiffener illustrated in Fig. 9.

Referring to Figs. 1 to 6, 1 is the leather blank, which, after being cut in the ordinary manner to the required shape and size to form a stiffener for the heel or toe of a boot or shoe, is subsequently passed, as at present,

fect-ively trim the lower marginal edge of through a skiving machine in order to efsaid blank to form a bevel or feather edge 2. For this purpose, as already explained, the leather blanks, as is customary, are dipped into water, so as to facilitate the skiving op erationand to maintain a sharp edge on the skiving blades or cutters. 3 are the series of equally spaced incisions, which constitute our invention in leather stiffeners for boots and shoes, and which incisions are formed in the blank 1 after it has been cut to the required shape and size. These incisions are preferably made with theaid of the apparatus illustratedin, Figs. 11 to 16, and extend through the skin or outer surface of the It will be understood that the manufacture of the stiffener 1 for the toe of a boot or shoe is carried out in the manner herein described, with reference to the manufacture of require further description.

The apparatus for forming the indentations or incisions 3 in the heel and toe stifl' oners l and 4., comprises a cast metal base 5 on which is formed or secured apair of integrally formed bracket members 6, on the upper ends of which is formed a comparatively long bearing boss? in which is revolubly mounted a main driving shaft v8. Fitted onfthe outer end of the main driving shaft 8 is a fast pulley 9 and loose pulleys the heel stiffener 1, and therefore does not 7 9*, to receive a power transmission belt (not shown) from any suitable power source. A toothed wheel 10 fitted on the outer end portion of the main driving shaft 8 meshes with a similar wheel 11 that is keyed or otherwise fitted on the outer end portion of a lower located shaft 12 which is revolubly supported in an elongated boss 13 formed on the outer end of a bracket 14.. This bracket is pivotally carried on a pin 15, rigidly secured by set-screw 16, in bosses 17 that are formed on the brackets 6. Detachably fitted on the forward end of the main shaft 8 is a cutting wheel 18having \l-shaped'teeth 19 adapted to form the incisions 3 in the stiffeners 1 and 4 in the mannerhereinafter described. The shaft 12 is located in vertical central alignment with the main shaft 8, and, detachably fitted on the forward end of said shaft 12, is a feed roller 20 which is adapted to feed the stiffener blank under the cutting wheel 18 and also function as a presser roller. The Width of the space between the cutting wheel 8 and the feed roller 20 requires adjusting to suit the varying thickness of the stiffeners that are being manufactured. For this purpose, the gear wheels 10 and 11 have comparatively long teeth to provide for adjustments within certain limits. The width of the space between the cutting wheel 8 and the roller 20 isregulated by means of adjustment screws 21, which are screwed into the 'baseportion 5 of the apparatus and adapted to bear against lugs 22 depending from the bracket 14, on

which is formed the elongated boss 18 car- I rying the shaft12. The adjustment screws 21 are fitted with lock nuts 23, adapted to be tightened against the base 5, so as to prevent accidental movement of said screws.

To prevent any upward movement of the bracket 14 when the feed roller 20 has been set to the required position, an adjusting screw 24 is screwed through a lug 25 formed on the bearing boss 7 which revolublysupports the main shaft 8. This adjusting screw 24: is adapted to bear upon a lug 26 formed on the elongated boss 13, and thus prevent any accidental upward movement of the feed roller 20 during working operations. A guide plate 27 is fastened'on the outer end of a short rod 28'which is adjustably fitted in a split lug 29 formed on one of the bracket members 6 and is rigidly held in position therein by a clamping bolt 30; This guide v plate extends transversely across the apparatus and it passes behind the cutting wheel 8 and forms a limit stop for the stiifeners as they are being passed through said apparatus. A feed table 31 is adjustably fitted to the front of the guide plate 27 to support the leather stifieners as they are being successively fed into the apparatus. This feed table is capable of vertical adjustment-to suit the varying thickness of stiffeners required for the manufacture of different classes of foot-wear. For this purpose the feed table 31 is secured in position to the heel stifi'eners 1 under the cutting roller 8;

but, by reason of the toe stiffener having the indentations or incisions 3 formed normal with respect to the periphery of the blank, it is necessary to provide a feed roller 20 having a bevelled surface seen in Figs. 11 and 16. h

In the operation of forming the indentations or incisions 3, in the heel stiffener 1,

the roller 20, having a perfectly flat surface, is fitted on the end of the shaft 12. The stiffener 1 is placed on the feed table 31 with its straight edge in abutment with the guide plate 27. The stiffener is then pushed forward until it is gripped between the cutting roller 8 and the feed roller 20, when the rotary motion of said rollers will automatically carry the stifiener through the apparatus and cause the incisions 3 to be made through the skin or outer surface ofthe stiffener, approximately at right angles to the lower marginal or straight edge of the same.

In forming the incisions about the lower or curved marginal edge of the toe stiffener,

the bevel edge feed roller 20 (Figure 16),

is substituted for the roller 20, and the curved edge of the stiifener fis' maintained in contact with the guide plate by the operator, until the whole of the incisions 3 have been formed, and normal with respect to the periphery of the blank, as illustrated in Fig. 9' of thedrawings;

We claim I 1. Leather stiffeners for the heels and toes of boots and'shoes, provided with a series of equally-spaced incisions only partially through the stiffener at its lower marginal skivedfcdge, said incisions extending from end to end thereof, and inwards partially through said skived portion, .at approximately right angles to the lower edge of said skived portion, as and for the purpose described.

2. Leather stiifeners for the heels of boots and shoes, provided with a series ofequallyspaced I horizontally arranged incisions through onlythe skin or outersu'rface of the stlfiener at its lower marglnal skived edge,

said incisions extending from end to end thereof and inwards partially through said skived portion and at approximately right angles to the lower edge of saidskived portion, as and for the purpose described;

3. Leather stiffeners for the toes of boots 3;

and shoes, provided with a series of equallyspaced and approximately normal incisions only partially through the stiffener at its lower marginal skived edge, said incisions extending-from end to" end thereof, and ,in-

wards partially through said skived portion, and at approximately right angles to the lower edge of such skived portion, as and for the purpose described.

FREDERICK CLAUDE WEICHELT.

PERCY SAMUEL TURNBULL.

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