CERTAIN IMPROVEMENTS IN THE MANUFACTURE OF CAST-IRON BUSHES OR PIPE BOXES FOR CHAISE, COACH; WAGGON, AND ALL SORTS OF CARRIAGE WHEELS
Year: 1817

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ROBERT
HARDY, of Worcester, Iron Founder and Engineer, send greeting.
WHEREAS His most Excellent Majesty King George the Third did, by
His Letters Patent under the Great Seal of His United Kingdom of Great
Britain and Ireland, bearing date at Westminster, the Twentieth day of
February, in the fifty-seventh year of His reign, give and grant unto me, the
said Robert Hardy, my exors, admors, and assigns, His especial licence, full
power, sole privilege and authority, that I, the said Robert Hardy, my exors,
adñiors, and assigns, should and lawfully might, during the term of years
therein mentioned, make, use, exercise, and vend vend, within England,
Wales, and Town of Berwick-upon-Tweed, my Invention of " CERTAIN
IMPROVEMENTS IN THE MANUFACTURE OF CAST-IRON BUSHES OR PIPE BOXES
FOR CHAISE, COACH; WAGGON, AND ALL SORTS OF CARRIAGE WHEELS;" in which
said Letters Patent there is contained a proviso that if I, the said
Robert Hardy, shall not particularly describe and ascertain the nature of
my said Invention, and in what manner the same is to be performed, by an
instrument in writing under my hand and seal, and cause the same to be
inrolled in His Majesty's High Court of Chancery within six calendar months
next and immediately after the date of the said Letters Patent, that then
the said Letters Patent, and all liberties and advantages whatsoever thereby
granted. shall utterly 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
Robert Hardy, do hereby declare that the nature of my said Invention, and

page_text: the manner in which the same is to be performed, are particularly described
and ascertained in and by the following description thereof (that is to say) :—
First, I make a mould of iron or other metalic substance, exactly the shape
and size of the bush or pipe I want to cast, which, being coupled together in
two, three, or more parts, as required; secondly, I make a pin or core of iron
or other metalic substance, exactly the size of the inside of the said pipe or
bush, which, being fitted in the same mould leaving a vacancy round the pin
or core of the thickness I want the said pipe or bush, and having an apperture
to pour the hot metal into the mould, and a small hole to allow the air to
escape, I then pour the hot metal into the mould; and immediately upon
the metal being set I drive out the pin, to prevent the pipe or bush bursting
by the contraction of the metal.
My said Invention may also be applied as follows, viz. :-I make a flask
or moulding box in two or more parts, exactly the same height as the length
of the pipe or bush, with seats in the top and bottom to receive an iron pin
I then make a pattern of the same size as the pipe I want, with the
ends turned to fit the seats in the moulding box. I then ram up the pattern
with sand in the moulding box; then part the box, take out the pattern, and
put an iron pin or core into its place. When the mould is put together
again, I pour in the metal, and on its being set I drive out the pin to prevent
the pipe bursting by the contractraction of the metal. And I do declare that
my said improvements are capable of being applied in a variety of other forms
agreeably to these Presents, which will readily occur to any competent person
who shall have perused the same.
In witness whereof, I, the said Robert Hardy, have hereunto set my
hand and seal, this First day of August, in the year of our Lord One