CERTAIN MECHANICAL MEANS OF CONVEYING CARRIAGES LADEN WITH COALS, MINERALS, MERCHANDIZE, AND OTHER THINGS
Year: 1813

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TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
HEDLEY, of Wylam, in the County of Northumberland, Coal Viewer, do
send greeting.
WHEREAS His most Excellent Majesty George the Third did, by His
Letters Patent under the Great Seal of the United Kingdom of Great Britain
and Ireland, bearing date at Westminster, the Thirteenth day of March now
last past, give and grant unto me, the said William Hedley, my executors,
administrators, and assigns, His special licence that I, the said William
Hedley, my executors, administrators, and assigns, during the term of years
therein expressed, should and lawfully might make, use, exercise, and vend,
Invention
within England, Wales, and the Town of Berwick-upon-Tweed, my
of "CERTAIN MECHANICAL MEANS OF CONVEYING CARRIAGES LADEN WITH COALS,
MINERALS, MERCHANDIZE, AND OTHER THINGS;" in which said Letters Patent
there is contained a proviso obliging me, the said William Hedley, under
my and seal, to cause a particular description of the nature of my said
Invention, and in what manner the same is to be performed, to be inrolled
in His Majesty's High Court of Chancery within two calendar months next
and immediately after the date of the said recited Letters Patent, otherwise
the same utterly to cease, determine, and become void, as in and by the same,
relation being thereunto had, may more fully and at large appear.
NOW KNOW YE, that in compliance with the said proviso, I, the said
William Hedley, do hereby declare that the nature of my said Invention, and
the manner in which the same is performed, is fully described in manner
following (that is to say):
I make and construct a frame of wood or any other material, of any given

page_text: length, and whose breadth must correspond for the railway or such other
purposes it is intended for; I then place it on wheels, such as are generally used
on railways, and on the shafts of these carriage wheels, or on the wheels
themselves, I fix toothed wheels of any given size, with intermediate shafts
and wheels to work into each other; I then fix a pinion wheel to work into
the toothed wheels before mentioned, to communicate motion to the other
toothed wheels, and so to the carriage wheels; I then place a steam engine on
the said carriage required to bear it, and connects its power by a crank or any
other method now in use, to produce a rotative motion to the fly axis or shaft
of the pinion wheel before mentioned. I make use of wheels for the carriage
of cast iron or wood, or partly made of wood, by way of increasing the friction
or adhesion between the wheels of the conducting carriage and railway; and
where the rail is of cast iron, with a round or flat surface, I attach or
cause teeth or flanges to project from both sides of the wheels of the con-
ducting carriage to enter the ground between the stones, sleepers, or rails, so
as to prevent the whole from surging or turning on their own axis; I also
attach the carriages to each other, and then to the carriage containing the
engine, by a rope or chain; I also occasionally, in ascending any uneven surface,
fix at certain given distances posts or anything to hold by, and from thence
extends a rope or chain to my conducting carriage containing the engine, and
on the said carriage places a rope roll worked by the toothed wheels mentioned
before, to impel the carriage so wanted forward.
In witness whereof, I, the said William Hedley, have hereunto set my
hand and seal, this Tenth day of May, One thousand eight hundred