CERTAIN IMPROVEMENTS IN MACHINERY FOR MAKING BRICKS
Year: 1826

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, we, WILLIAM
CHOICE, of Strahan Terrace, Auctioneer, and ROBERT GIBSON, of White
Conduit Terrace, Builder, both in the Parish of Saint Mary, Islington, in the
County of Middlesex, send greeting.
WHEREAS His present most Excellent Majesty King George the Fourth,
by His Letters Patent, under the Great Seal of Great Britain, bearing date at
Westminster, the Twenty-seventh day of April, One thousand eight hundred
and twenty-six, in the seventh year of His reign, did, for Himself, His heirs,
and successors, give and grant unto us, the said William Choice and Robert
Gibson, His especial licence, that we, the said William Choice and Robert
Gibson, our exors, adñiors, and assigns, or such others as we, the said William
Choice and Robert Gibson, our exors, adññiors, or assigns, should at any time
agree with, and no others, from time to time and at all times during the termi
of years therein expressed, should and lawfully might make, use, exercise, and
vend, within England, Wales, and the Town of Berwick-upon-Tweed, our
Invention of "CERTAIN IMPROVEMENTS IN MACHINERY FOR MAKING BRICKS;"
in which said Letters Patent is contained a proviso, obliging us, the said
William Choice and Robert Gibson, by an instrument in writing under our
hands and seals, or under the hand and seal of one of us, particularly to
describe and ascertain the nature of our said Invention, and in what manner
the same is to bo performed, and to cause the same to be inrolled in His
Majesty's High Court of Chancery within two calendar months next and
immediately after the date of the said in part recited Letters Patent, as in and

page_text: by the same, relation being thereunto man, will more funy and
appear.
NOW KNOW YE, that in compliance with the said proviso, we, the said
William Choice and Robert Gibson, do hereby declare that the nature of our
said Invention, and the manner in which the same is to be performed, are par-
ticularly described and ascertained in and by the Drawing hereunto annexed,
and the following description thereof (that is to say):-
A is an upright frame with cross beams top and bottom, on which the whole
of the machinery acts; B1, B2, are two upright shafts, carrying the two spur
wheels C1 and C2, working horizontally by the horse shaft D on wheel C 1,
which turns the upright shaft B, No. 1, to which a mortised coller E is
attached, and in which work the three flanches F, F, F, with rollers, and to
which the mould boxes G, G, G, are fixed, having three divisions in each, in
which work the three stocks or false bottoms, having upright spindles through
the holes I, I, I, the whole of which are carried up the risers K, K, K, 1, 2, 3,
in every revolution; L, L, a small wheel and pinion acting at the bottom of
shaft B1 and turning the drum M, on which an endless strap N revolves over
drum O to any given length; P a crank or lever fixed on the standard or
frame, which rises the rod and weight Q by means of the cogs R, R, R,
attached to wheel C 1; S 1 a box or cistern containing water; on S 2 a cushion
is placed, and on which the moulds fall; S 3 a box containing dry sand. The
horizontal wheel C 2, worked by C1 and turning shaft No. B 2, works through
the
pug mill T, turning the knives and revolving cogged wheel or bottom U on
rollers which turns the polishing cogged wheel V, working horizontally; W,
a small framework, which rises by a crank X; Y a tub containing water over
the polishing wheel; Z a flap and guage to regulate the clay operation.
The clay is placed in the pug mill by the usual method, which is worked
through the mouth on to the revolving bottom U, and carried under the flap
and guage Z to the end of the riser K 3, where the moulds fall and are filled
on the revolving bottom, and passing over the polishing wheel V, which
smooths the bottom of the bricks and proceeds to the framework W, which is
raised by the flanch F pressing the crank X, when the rod and weight Q
being disengaged from the cog R falls on the upright spindles attached to the
false bottoms or stocks, and strikes out the bricks, which are received on boards
placed on the framework, and lowered to the endless strap N and carried
forward; the flanch with mould box then rising up, riser K 1 dips into the
cistern S1, then falls on the cushion S2, and proceeds up the riser K 2, and
falls into the box S 3 containing dry sand, the same operation performed by
each flanch and mould box in progression.

page_text: The objects which we claim as our particular Invention and property are
the risers, which elevate the flanches and moulds; also the flanches or levers
with rollers, to which are attached the moulds, and work up the before-named
risers, which action of preparing the moulds before striking on the clay is
peculiar to our Invention; also the revolving cogged bottom wheel acting
under the pug mill, and the application of the polishing wheels with the frame-
work receiver.
In witness whereof, I, the said William Choice, have hereunto set my
band and seal, this Twenty-seventh day of June, in the year of our
Lord One thousand eight hundred and twenty-six.
VILLIAM (L.S.)
UICE.
AND BE IT REMEMBERED, that on the Twenty-seventh day of June,
in the year of our Lord 1826, the aforesaid William Choice 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 stamped according to
tenor of the Statute made for that purpose.
Inrolled the Twenty-seventh day of June, in the year of our Lord One
thousand eight hundred and twenty-six.