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
Among the fibers employed in rope making that of the hemp plant long
held the supremacy, though in recent years it has been largely
supplemented by other and stronger fibers. This plant is a native of
Asia, but is now grown largely in other continents, taking its name from
the country in which it is raised, as Russian hemp, Italian hemp, and
American, or Kentucky, hemp, it having long found a home in the soil of
Kentucky. It differs from the Manila fiber, which has now very largely
supplanted it, by being much softer, though of less strength. In the old
days of the sailing vessel hempen rope was largely used for the rigging
of merchant and war ships, but the use of other fibers and of wire for
rigging has greatly reduced the market for Kentucky hemp. There are
various other fibers known under the name of hemp, the New Zealand,
African, Java, etc., but the Manila and Sisal fibers, since the middle
of the last century, have largely taken their place.
[Illustration: HOW PINE TAR IS MADE IN THE SOUTH ATLANTIC STATES
1. Building the kiln.
2. Starting fire.
3. Racking back coals.
4. Tar coming from kiln.
5. Dipping and barreling.
6. Working around kiln.
7. After hard day and night.
8. Tar makers at home.
9. Burning completed.]
Manila and Sisal Fibers.
Manila hemp, as it is called, is a product of our Philippine dependency,
being obtained from a species of the banana plant which grows abundantly
in those islands. Its fiber is very long, ranging from six to ten feet,
and is noted for its smoothness and pliability, a feature which makes it
ideal for rope making. Gloss and brilliancy are also characteristics of
good quality Manila.
[Illustration: AMERICAN HEMP STACKED IN FIELDS]
Manila hemp is obtained from the leaf stalks of the Philippine plant
known as the Abacá, the leaf stems of which are compressed together, and
constitute the trunk of the plant. It is obtained by scraping the pulp
from the long fibers, drying these when thoroughly cleaned, and baling
them for market.
The high price of the Manila product, however, has brought a cheaper
fiber, of American growth, into the market; this being that known as
Sisal, extracted from henequen, a cactus-like plant of Yucatan. As a
substitute for or rival of Manila hemp it has come into common use. Its
cheapness recommends it despite the fact that it is not of equal
strength, and also that its fibers are shorter, being from two to four
feet in length. Sisal also lacks the flexibility of Manila, being much
more stiff and harsh. The development of the self-binding reaper on our
western grain-fields has opened a gold mine for Sisal cordage. Of the
annual import of this fiber to the United States, 300,000,000 pounds in
quantity, a large proportion finds its way to the wheat fields of the
West. It is also used in all other wheat-yielding countries.
[Illustration: PHILIPPINE HEMP CART]
[Illustration: LOADING FIBER FROM SISAL FIBER PLANT ONTO PLANTATION
CAR]
Public-domain text, read in full here on John Shaqi.
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