Specification of William Pritchard : apparatus for regulating supply of air to furnaces.

  • Prichard, William, -1815.
Date:
1854
Catalogue details

Licence: Public Domain Mark

Credit: Specification of William Pritchard : apparatus for regulating supply of air to furnaces. Source: Wellcome Collection.

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    Apparatus for Regulating Supply of Air to Furnaces. PRICHARD’S SPECIFICATION. TO ALL TO WHOM THESE PRESENTS SHALL COME, I, William Prichard, of Leeds, in the County of York, Engineer, send greeting. WHEREAS His most Excellent Majesty King George the Fourth did, by His Letters Patent under the Great Seal of that part of the United Kingdom 5 of Great Britain and Ireland called England, bearing date at Westminster, the Twenty-second day of December, in the first year of His reign, give and gran unto me, the said William Prichard, my exors, admors, and assigns, His especial licence, full power, sole privilege and authority, that I, the said William Prichard, my exors, admors, and assigns, during the term of years 10 therein mentioned, should and lawfully might make, use, exercise and vend, ' within England, Wales, and the Town of Berwick upon Tweed, my Invention of “ Certain Improvements in an Apparatus calculated to save Fuel, and for the more Economical Consumption, of Smoke, in shutting Fire Doors and Air Flues in Steam-engine Boilers, Dying-pans, and Brewing-pans, and other Fire 15 Doors and Air Flues;” in which said Letters Patent there is contained a pro¬ viso that if I, the said William Prichard, 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 SO two 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, will more fully and at large appear.