Outspinning the Spider: The Story of Wire and Wire Rope — John Shaqi
Outspinning the Spider: The Story of Wire and Wire RopeMumford, John Kimberly
History
Outspinning the Spider: The Story of Wire and Wire Rope
Mumford, John Kimberly
John A. Roebling's Sons Company; Wire; Wire rope
Next, suspending the river traffic for the necessary time, the scow was
towed across the river, paying out as she went, and the rope carried
over the New York tower, then wound on a huge drum till it hung high
above the river and clear of the tallest topgallant. A second rope was
run in the same manner and the two were joined around huge driving
wheels or pulleys at each end. An endless belt or "traveler," revolving
by steam power, now stretched from city to city, and on a day in
August, that lives yet in the memory of every man who was there, E. F.
Farrington, the master mechanic of the project, who was a veteran of
Niagara and the Ohio Bridge, set out to show the workmen, who on this
slender aerial were to begin the long labor of hanging the cable, that
it was easy if you only thought so. In a "bosun's chair" he shot out
from the top of the Brooklyn tower, down the long sag in the traveler
and up to the New York side, while a million people craned their necks
from the streets and docks and housetops and boats along the river, and
swallowed hard at their hearts.
The bands played, the cannon tore the air, the multitudes yelled
themselves hoarse, the steam whistles of the harbor shrieked to the sky
the tidings that, though nobody then understood it, "Greater New York"
was on the way.
* * * * *
This was six years and a half from the time when Washington A. Roebling
had begun the work of construction. Seven other years followed, years
full of troubled effort, of planning and replanning and replanning, of
battling with the twin devils of Contraction and Expansion. The
tensions all had to be secured in absolutely uniform weather. A
determination made when the sun was shining on one part of the bridge
and not on another might have thrown the whole calculation awry. Sun
and wind played pranks with the work in the summer and in the winter
snow and ice coated the wires and running gear so that work was often
impossible. Deflection varied a third of an inch for every degree of
temperature.
"In short," says the writer of that time, "the ponderous thing, while
neither small nor agile, has a trick in common with the minute and
lively insect which when you put your finger on him isn't there."
[Sidenote: THE FABRIC GROWS TOWARD COMPLETION]
But in due time the great cables were in place, and bound. Then the
suspender bands were set, from which suspender cables hung to hold the
frame of the roadway. And so the fabric grew toward completion, hung
practically in two sections, which all the world nowadays doesn't know,
with an expansion joint connecting them in the middle to absorb the
expansion and contraction of the metal. Even the rails at this section
are split in half lengthwise, to permit them to slide back and forth
with the changes in temperature.
Public-domain text, read in full here on John Shaqi.
Reviews
Reviews
No reviews yet
Be the first to share your thoughts on this work.
Join the Discussion
Join the discussion
Sign in to leave a comment or review.
Sign InorCreate an account