History of Madeley: including Ironbridge, Coalbrookdale, and CoalportRandall, John
History
History of Madeley: including Ironbridge, Coalbrookdale, and Coalport
Randall, John
Madeley (Shropshire, England) -- History
“The inequality of the ground and the want of sufficient water seemed
insuperable, and might probably have been so for ages to come had not
Mr. William Reynolds, of Ketley, whose character is too well known to
need any eulogium, discovered the means of overcoming them. Having
occasion to improve the method of conveying ironstone and coals from
the neighbourhood of Oakengates to the ironworks at Ketley, these
materials lying generally about the distance of a mile and a half
from the ironworks, and 73 feet above their level, he made a
navigable canal, and instead of descending in the usual way by locks,
contrived to bring the canal forward to an abrupt part of the bank,
the skirts of which terminated on a level with the ironworks. At the
top of this bank he built a small lock, and from the bottom of the
lock, and down the face of the bank, he constructed an _inclined
plane_, with a double iron railway. He then erected an upright frame
of timber, in which was fixed a large wooden barrel. Round the
latter a rope was passed that led to a moveable frame, the frame
being of a sufficient size to receive a canal boat, resting and
preserved in nearly a horizontal position, by having two large wheels
before and two small ones behind—varying as much in the diameters as
the inclined plane varied from a horizontal plane. This frame being
placed in the lock, the loaded boat was brought to rest upon it. The
lock gates were shut, the water was drawn from the lock into a
side-pond, the boat settled upon a horizontal wooden frame, and—as
the bottom of the lock was formed with nearly the same declivity as
the inclined plane—upon the lower gates being opened, the frame with
the boat passed down the iron railway into the lower canal, which had
been formed on a level with the Ketley ironworks, being a fall of 73
feet. A double railway having been laid upon the inclined plane, the
loaded boat in passing down brought up another boat containing a load
nearly equal to one-third part of that which passed down. The
velocity of the boats was regulated by a break acting upon a large
wheel, placed upon the axis on which the ropes connected with the
carriages were coiled.”
This contrivance has been in use up to the present time. During Mr.
Reynolds’s life a representation of it figured upon copper tokens, one of
the first iron bridge being upon the opposite or obverse side.
Public-domain text, read in full here on John Shaqi.
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