A MACHINE OF ENGINE FOR RAISING WATER AND OTHER LIQUIDS, AND FOR OTHER PURPOSES, BY MEANS OF FIRE AND STEAM
Year: 1781

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JONATHAN
HORNBLOWER, of Penryn, in the County of Cornwall, Plumber and Brazier,
send greeting.
WHEREAS His most Excellent Majesty King George the Third did, by His
Letters Patent, under the Great Seal of Great Britain, bearing date at
Westminster, the Thirteenth day of July, in the twenty-first year of His reign,
give and grant unto me, the said Jonathan Hornblower, my executors, admini-
strators, and assigns, His Royal licence and authority, to use, exercise, and
vend, within England and Wales and Town of Berwick-upon-Tweed, for the
term of years therein mentioned, my Invention of "A MACHINE OF ENGINE FOR
RAISING WATER AND OTHER LIQUIDS, AND FOR OTHER PURPOSES, BY MEANS OF FIRE
AND STEAM;" in which said Letters Patent there is contained a proviso obliging
me, the said Jonathan Hornblower, within four calender months after the date
thereof, to 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 said - Majesty's High
Court of Chancery, otherwise the said Letters Patent to be void, as in and by
the said Letters Patent and the Statute in that behalf made and provided.

page_text: NOW KNOW YE, that, in compliance with the said proviso and in pur-
suance of the said Statute, I, the said Jonathan Hornblower, do hereby declare
that my said Invention is described in manner and form following (that is to
say):
First, I use two vessels, in which the steam is to act, and which in other
steam engines are generally called cylinders.
Secondly, I employ the steam after it has acted on the first vessel, to
operate a second time in the other, by permitting it to expand itself, which
I do by connecting the vessels together, and forming proper channels and
appertures, whereby the steam shall occasionally go in and out of the said
vessels.
Thirdly, I condense the steam by causing it to pass in contact with metal-
line surfaces while water is applied to the opposite side.
Fourthly, to discharge the engine of the water used to condense the steam,
I suspend a column of water in a tube or vessel, constructed for that
purpose on the principles of the barometer, the upper end having open
communication with the steam vessels, and the lower end immersed into a
vessel of water.
Fifthly, to discharge the air which enters the steam vessels with the con-
densing water or otherwise, I introduce it into a seperate vessel, whence it is
protruded by the admission of steam.
Sixthly, that the condensed vapour shall not remain in the steam vessel in
which the steam is condensed, I collect it into another vessel which has open
communication with the steam vessels and the water in the mine, reservoir, or
river.
. Lastly, in cases where the atmosphere is to be employed to act on the
piston, I use a piston so constructed as to admit steam round its periphery,
and in contact with the sides of the steam vessel, thereby to prevent the
external air from passing in between the piston and the sides of the steam
vessel.
In witness whereof, I, the said Jonathan Hornblower, have hereunto
set my hand and seal, this Fifth day of November, in the twenty-
second year of the reign of our Sovereign Lord George the Third, by
the grace of God of Great Britain, France, and Ireland King, Defender
of the Faith, and so forth, and in the year of our Lord One thousand
seven hundred and eighty-one.
9
JONATHAN HORNBLOWER (L.B.)

page_text: AND BE IT REMEMBRED, that on the same Fifth day of No-
vember, in the year above mentioned, the aforesaid Jonathan Hornblower
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 tenor of the Statute made in the sixth year of the
reign of their late Majestys King William and Queen Mary of England,
and so forth.