The Wonder Book of Knowledge: The Marvels of Modern Industry and Invention, the Interesting Stories of Common Things, the Mysterious Processes of Nature Simply Explained
History
The Wonder Book of Knowledge: The Marvels of Modern Industry and Invention, the Interesting Stories of Common Things, the Mysterious Processes of Nature Simply Explained
Industrial arts -- History
First comes the clicking machine. This has a cutting board resembling
that used by the hand workmen. Over this is a beam containing a cutting
die under which the leather is passed. At every descent of the die a
piece of leather is cut out of the skin of the size and shape needed for
the upper leather of a shoe. Thus in an instant is done what was slowly
done by a sharp knife moved around a pattern in the old method.
[Illustration: IN THE DAYS OF THE AWL, LAPSTONE AND HAMMER]
[Illustration: AMAZEEN SKIVING MACHINE]
[Illustration: CROSS-SECTION OF GOODYEAR WELT SHOE, SHOWING THE
DIFFERENT PARTS AND THEIR RELATION TO EACH OTHER]
[Illustration: INSOLE TACKING MACHINE]
[Illustration: IDEAL CLICKING MACHINE]
[Illustration: DUPLEX EYELETING MACHINE]
[Illustration: ENSIGN LACING MACHINE]
[Illustration: REX PULLING-OVER MACHINE]
[Illustration: REX UPPER TRIMMING MACHINE]
[Illustration: CROWN TIP PUNCHING MACHINE]
[Illustration: BED LASTING MACHINE]
[Illustration: GOODYEAR UNIVERSAL INSEAM TRIMMING MACHINE]
[Illustration: TACK-PULLING AND RESETTING MACHINE]
[Illustration: CONSOLIDATED HAND METHOD WELT LASTING MACHINE]
[Illustration: IMPROVED SOLE LAYING MACHINE]
[Illustration: STAR CHANNEL CEMENTING MACHINE]
[Illustration: GOODYEAR AUTOMATIC SOLE LEVELING MACHINE]
[Illustration: AMERICAN LIGHTNING NAILING MACHINE]
The piece of leather thus cut out is next passed under the skiving
machine, which shaves down its edges to a bevel, the thinned edge being
then folded, after which the toe caps are passed through a punching
machine which cuts a series of ornamental perforations along the edge of
the cap. The linings of the shoe are then prepared and put in place and
the whole goes to the stitchers, by which all the parts of the upper are
united. This is done by a range of machines, which perform the varied
operations with wonderful rapidity and accuracy. The eyelets are next
added by a machine which places them in both sides of the shoe at the
same time and directly opposite each other, this operation finishing the
upper part of the shoe.
The sole leather portions of the shoe pass through another series of
machines, being cut from sides of sole leather by the dieing-out
machine, cut to exact shape by the rounding machine and to exact
thickness by the splitting machine, and then toughened by passing under
a heavy rolling machine. These and other machines complete the soles and
heels, which are finally sent to the making or bottoming room, where the
completed shoe uppers await them.
Public-domain text, read in full here on John Shaqi.
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