AN INTIRE NEW COMPOSITION, TO BE USED AS A SUB- STITUTE POR, AND WILL IN EVERY RESPECT BE PREPERABLE TO EITHER LEAD, SLATES, OR TILES, IN COVERING OF CHURCHES, HOUSES, AND OTHER BUILDINGS
Year: 1778

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, HENRY
Cooк, of the Parish of Stoke Holy Cross, in the County of Norfolk,
Gentleman, 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 the
Sixteenth day of March, in the eighteenth year of His reign, give and grant
unto. me, the said Henry Cook,: His especial licence that I, the said Henry
Cook, during the term of years therein expressed, should and lawfully might
use, exercise, and vend, within England, Wales, and Town of Berwick-upon-
Tweed, my Invention of "AN INTIRE NEW COMPOSITION, TO BE USED AS A SUB-
STITUTE POR, AND WILL IN EVERY RESPECT BE PREPERABLE TO EITHER LEAD,
SLATES, OR TILES, IN COVERING OF CHURCHES, HOUSES, AND OTHER BUILDINGS;" in
which said Letters Patent there is contained a provisoe obliging me, the said
William Cook, 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 four calender
months 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 provisoe, I, the said
Henry Cook, do hereby declare that my said Invention of An Intire New
Composition to be used as a Substitute for, and will in every respect be

page_text: preferable to, either Lead, Slates, or Tiles in Covering of Churches, Houses,
and other Buildings, is described in the manner following (that is to say:-
Litharge, red lead, white lead, chalk, stone, black flint, brick-dust, fine sand
prepared by washing, caput mortuum, and ground glass. The above reduced
to fine powder and all mixed together. To every hundredweight of the above
materials is added twenty-eight pounds of old junk, rope, or hemp, reduced to a
pulp, and all worked together in water by a water-mill; the composition thus
mixed is put into moulds, and formed like slates, then pressed as dry as may
be by large iron presses, afterwards dried in a stove by fire, and when quite
dry pressed by iron rowling cylinders; then each sheet is steeped in a liquor
prepared with linseed oil, litharge, red lead, white copperas, and sugar of lead,
again dryed in a stove, pressed by the cylinders, and painted.
hand and seal, this Twelfth day of June, 1778.
HY COOK. (L.S.)
AND BE IT REMEMBRED, that on the Thirteenth day of June, in
the year above mentioned, the aforesaid Henry Cook 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 the late King and Queen
William and Mary of England, and so forth.
1
Inrolled the Fifteenth day of June, in the year last above mentioned.