INVENTION OF A STEAM ENGINE UPON AN ENTIRE NEW CONSTRUCTION, CALCULATED TO SAVE A CONSIDERABLE EXPENCE AS WELL IN THE ERECTION AS IN THE ARTICLE OF FUEL
Year: 1792

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, we, MATTHEW
PITTS, Captain in the Royal Corps of Engineers, and THOMAS STRODE, of the
Parish of Saint Mary, Lambeth, in the County of Surry, Engine Maker,
send greeting.
WHEREAS His most Excellent Majesty King George the Third, by His
Letters Patent under the Great Seal of Great Britain, bearing dato at
Westminster, the Eighteenth day of April, in the thirty-second year of His
reign, did give and grant unto us, the said Matthew Pitts and Thomas Strode,
His especial licence that we, the said Matthew Pitts and Thomas Strode,
during the term of years therein mentioned, should and lawfully might use,
exercise, and vend, within England, Wales, and the Town of Berwick-upon-
Tweed, our "INVENTION OF A STEAM ENGINE UPON AN ENTIRE NEW CONSTRUCTION,
CALCULATED TO SAVE A CONSIDERABLE EXPENCE AS WELL IN THE ERECTION AS IN THE
ARTICLE OF FUEL;" in which said Letters Patent there is contained a proviso
obliging us, the said Matthew Pitts and Thomas Strode, by an instrument in
writing under our hands and seals, to cause a particular description of the
nature of our said Invention, and in what manner the same is to be performed,
to be inrolled in His Majesty's High Court of Chancery within one calendar
month after the date of the said recited Letters Patent, 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, we, the
said Matthew Pitts and Thomas Strode, do hereby declare that our said Inven-

page_text: Copper Brass or other fit Material as AA, which Vessel is heated by Fire applied on the outside in manner as common Boilers usually are; At the Bottom or any other
Part of the internal Surface of this Vessel is fixed a piece of Iron, Melal or other Material C, and into the Vessel near the upperpart or wherever it is most convenient
a Tube B, is introduced in such form as shall best convey a Stream or Jet of Water, so that it shall full immediatly on the Iren Metal or other Material C: Or the
Water may fall on the Inside surface of the Vissel without any such piece of Metal or Material as aforesaid so that the Water flowing through the Tube B and discharging
itself at D or inside of the Vessel A.A. shall have a due Degree of Velocity, and Impulse seas to divide the Water into very minute Partides which are then generated
into Steam by the heat of the Vessel AA The upper End of the Tube B communicates to a Cistern er Reservoir placed at such height as to give the Column a duel
Degree of Velocity and the Quantity of Water discharged at D, is regulated by means of a Cock or making the Aparture of a proper Size- Secondly Our mode
or Method of condensing Steam within the Great or House Cylinder is as follows - Instead of a Jet of Cold Water being projected against the under Surface of the
Piston as generally applied is these Steam Engines in which the Condensation is effected (within the Great or House Cylinder) the water from a Reservoir fixed
at a proper height is let into a Tube E, which communicates to a Cylindrical or Conical Tube F, fixed to the Bottom of the Cylinder and over the top of the Tube F, at
a small distance is fixed a Cap of Metal G. supported by a spinille er Stem H regulated by a Screw, the Water being resisted by this Plate or Cap is diverted and forms
a horizontal Sheet of Water near the Bottom of the Great or House Cylinder and thus an immediate Condensation taken Place without chilling the Upper Part of the Great
er House Cylinder and the Water is Carried off by the Common discharging Pipe I.