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
[Illustration: CLIMAX FINISHING SHAFT]
[Illustration: GOODYEAR HEEL SEAT ROUNDING MACHINE]
[Illustration: LOOSE NAILING MACHINE]
[Illustration: THE HADAWAY STITCH SEPARATING MACHINE]
[Illustration: NAUMKEAG BUFFING MACHINE]
[Illustration: REGENT STAMPING MACHINE]
[Illustration: GOODYEAR UNIVERSAL ROUNDING AND CHANNELING MACHINE]
[Illustration: GOODYEAR WELT AND TURN SHOE MACHINE]
[Illustration: STITCH AND UPPER CLEANING MACHINE]
[Illustration: TWIN EDGE SETTING MACHINE]
[Illustration: GOODYEAR OUTSOLE RAPID LOCKSTITCH MACHINE]
[Illustration: IMPROVED VAMP CREASING MACHINE]
[Illustration: MILLER SHOE TREEING MACHINE]
[Illustration: THE EVOLUTION OF A GOODYEAR WELT SHOE
1. A last. 2. An upper. 3. An Insole. 4. Shoe lasted and ready to have
welt sewed on. 5. Welt partly sewed on. 6. Welt entirely sewed on the
shoe. 7. An outsole. 8. Shoe with outsole laid and rounded; channel lip
turned up ready to be stitched. 9. Shoe with sole stitched on. 10. Shoe
with heel in place. 11. Heel trimmed and shoe ready for finishing.]
The remaining machines have to do with the final finishing. They include
trimmers, stitch separators, edge setters, buffers, finishers, cleaners,
stampers, shoe treers, creasers, etc., each playing a part of some
importance in giving a final finish to the shoe and making it
presentable to the wearer. The whole operation, as will be seen, is a
highly complicated one, and is remarkably effective in preparing an
article that shall appeal to the salesman and purchaser and prove
satisfactory when put into use.
Such is the complicated process of making a shoe by machinery. It would
be hard to find any machine process that surpasses it in complexity and
the number of separate machines involved. Poor old St. Crispin would
certainly expire with envy if he could see his favorite thus taken out
of the hands of his artisans and the shoe whirled rapidly through a host
of odd but effective contrivances on the way to become made fit for
wear.
* * * * *
What is “Standard Gold”?
Gold is one of the heaviest of the metals, and not being liable to be
injured by exposure to the air, it is well fitted to be used as coin.
Its ductility and malleability are very remarkable. It may be beaten
into leaves so exceedingly thin that one grain in weight will cover
fifty-six square inches, such leaves having the thickness of only
1/282000th part of an inch. It is also extremely ductile; a single grain
may be drawn into a wire 500 feet long, and an ounce of gold covering a
silver wire is capable of being extended upwards of 1,300 miles. It may
also be melted and remelted with scarcely any diminution of its
quantity. It is soluble in nitromuriatic acid and in a solution of
chlorine. Its specific gravity is 19.3, so that it is about nineteen
times heavier than water. The fineness of gold is estimated by carats,
pure gold being twenty-four carats fine.
Public-domain text, read in full here on John Shaqi.
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