NEW-INVENTED METHOD OF APPLYING STEAM ENGINES (COMMONLY CALLED FIRE ENGINES) TO THE TORNING OF WHEELS, WHEREBY A ROTATIVE MOTION (OR MOTION ROUND AN AXIS IS PERFORMED), AND THE POWER OF THE ENGINE IS MORE IMMEDIATELY AND FULLY APPLIED, WHERE MOTION ROUND AN AXIS IS REQUIRED, THAN BY THE INTERVENTION OF WATER WHEEL
Year: 1780

page_text: PICKARD'S SPECIFICATION.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JAMES
PICKARD, of Birmingham, in the County of Warwick, Button Maker, send
-greeting.
WHEREAS His most Excellent Majesty King George the Third, by His
Letters Patent under the Great Seal of Great Britain, bearing date at
Westminster, the Twenty-third day of August, in the twentieth year of His
said Majesty's reign, did give and grant unto me, the said James Pickard,
iny executors,, adûiors, and assigns, his special licence, full power, sole
privilege and authority, that I, the said James Pickard, should and lawfully
might, during the term of years therein expressed, use, exercise, and vend,
throughout that part of His Majesty's Kingdom of Great Britain called
England, Dominion of Wales, and Town of Berwick-upon-Tweed, and also
in all His Majesties Colonies and Plantations abroad, my "NEW-INVENTED
METHOD OF APPLYING STEAM ENGINES (COMMONLY CALLED FIRE ENGINES) TO THE
TORNING OF WHEELS, WHEREBY A ROTATIVE MOTION (OR MOTION ROUND AN AXIS IS
PERFORMED), AND THE POWER OF THE ENGINE IS MORE IMMEDIATELY AND FULLY APPLIED,
WHERE MOTION ROUND AN AXIS IS REQUIRED, THAN BY THE INTERVENTION OF WATER
WHEEL;" in which said recited Letters Patent is contained a proviso obliging
me, the said James Pickard, by writing under my hand and seal, to cause a
particular description of the nature of my said Invention, and how the same is
to be performed, to be inrolled in His Majesty's High Court of Chancery within
our calendar months after the date of the said recited Letters Patent, as in

page_text: and by the said Letters Patent, and the Statute in that behalf made, reference
being thereunto respectively had, may more at large appear.
NOW KNOW YE, that in compliance with the said proviso, and in pur-
suance of the said Statute, I, the said James Pickard, do hereby declare that
the following is a Drawing and particular description of the nature of my said
Invention, and of the manner in which the same is to be performed (that is
to say) :-
A, B, represents a lever commonly called a crank, which is fixt to the
shaft or arbor of the great wheel C, D, the pin (a) of which crank is inserted
into the end of a spear or carrier, the other end of which spear is (by a moving
joint) connected to or with the regulating or great working beam (and in some
cases to the piston) of the fire-engine cylinder, consequently each stroke of the
piston makes the crank A, B, and great wheel C, D, revolve once about their
common axis or center, and when a regular uniform motion is required a
smaller wheel F, G, is applied, which, working in the large wheel C, D, and
having just half the number of coggs or teeth, consequently makes just
twice the number of revolutions; about its axis or center a weight H is also
applied to such a part of the wheel F, G, (or by a leaver to its shaft or arbor,
that the said weight I will always descend when the crank and the spear are
parallel (or nearly so), and the said weight will ascend when the are at or
nearly at right angles with each other, (i. c.) the weight ascends by the acting
of two opposite quadrants, and descends in the other two opposite quadrants of
each rotation of the large wheel C, D.
And I, the said James Pickard, do hereby also further declare that nothing
herein contained is intended to extend to any fire engine where a rotative
motion is or may be effected in any other manner than having its power applied
to a crank or pin revolving similar to that at a.
In witness whereof, I have hereunto set my hand and seal, this Fifth day
of December, in the year of our Lord One thousand seven hundred

page_text: AND BE IT REMEMBERED, that on the said Fifth day of December, in
the year above mentioned, the said James Pickard came before our said Lord
the King in His Chancery, and acknowledged the Specification aforesaid, and
all and every thing therein contained and specified, in form above written. And
also the Specification aforesaid was stampt according to the form of the Statute
made in the sixth year of the reign of their late Majesty's King William and
Queen Mary of England, and so forth.
Inrolled the Ninth day of December, in the year above mentioned.