The story of rope : $b The history and the modern development of rope-making — John Shaqi
The story of rope : $b The history and the modern development of rope-makingPlymouth Cordage Company
History
The story of rope : $b The history and the modern development of rope-making
Plymouth Cordage Company
Rope
The operations which follow are very similar. A number of “ropings” are
allowed to feed together into a first, slowly revolving set of pins
and are drawn out again by a high-speed set into a smaller sliver, the
pins becoming finer on each succeeding machine until the draw frame is
reached. Here the fiber is pulled from a single set of pins between two
rapidly moving leather belts called aprons. On all of these machines
the fiber passes between rollers as it goes onto and leaves the pins
and the sliver is given its cylindrical form by being drawn through a
circular opening.
A finished sliver must conform to the special size desired for
spinning. Different sizes are secured by changing the number of
“ropings” which are allowed to feed into the fine spreader. When “rule
of thumb” standards of measurement were practiced the size of the
sliver was tested by the number of turns which could be clasped in the
hand between the ends of the thumb and forefinger. If the workman’s
hand chanced to be different from the official hand, he made allowances
accordingly. At best this was a rough and ready method, but through
long practice the men could become surprisingly expert. Mechanical
grips or clasps are now used because they are more convenient and
afford greater accuracy.
The wonder of modernism in rope-making is nowhere more striking than
in the preparation room. To pass from one end, where the raw hemp is
received just as it left the hands of the native Filipino laborer with
his crude methods, down through the long rows of machines to the draw
frames from which the sliver is delivered in a form that can be likened
to a stream of molten metal, is to cover decades of inventive genius
and mechanical development.
The mechanism performs its work so accurately that at first glance the
man feeding the fiber into the machine and all the other men, busy
about their various duties, would appear to be playing very minor parts
in modern rope-making. In reality, expert workmanship and watchfulness
are very important factors. Good rope depends no more upon scientific
machine processes than upon ceaseless attention to the little details.
And the attention paid to the details of the preparation room is
especially important.
A rope expert once said, “Any manufacturer can make rope--it is a
simple operation; but very few can make _good rope_ because few are
willing to devote the necessary amount of pains to each of the little
operations in the process.”
[Illustration: PLYMOUTH CORDAGE COMPANY FACTORY TODAY AND IN EARLY
DAYS]
[Illustration]
CHAPTER III
SPINNING OF ROPE YARN AND BINDER TWINE
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