NEW INVENTED AND IMPROVED METHODS OF CONSTRUCTING, FIXING, AND ARANGEING WINDOW LIGHTS AND SASHES, OF ALL DESCRIPTION'S WHATSOEVER
Year: 1790

page_text: FROST'S SPECIFICATION.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JAMES
FROST, of the Parish of All Saints, in the City of Norwich, in the County of
Norfolk, Carpenter, 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 Twenty-seventh day of April, in the 30th year of His
reign, give and grant unto me, the said James Frost, His special licence, full
power, sole privilege and authority; during the term of years herein expressed,
to make, use, exercise, and vend, within that part of Great Britain called
England, the Dominion of Wales, and Town of Berwick-upon-Tweed, my
Invention of "NEW INVENTED AND IMPROVED METHODS OF CONSTRUCTING, FIXING, AND
ARANGEING WINDOW LIGHTS AND SASHES, OF ALL DESCRIPTION'S WHATSOEVER;" in
which said Letters Patent there is contained a proviso or condition obliging me,
the said James Frost, by an instrument in writing under my hand and seal,
particularly to describe and assertain the nature of my said Invention, and in what
manner the same is to be performed, and to cause the same to be enrolled in
His Majestie's High Court of Chancery, within one month after the date of
the said Letters Patent, as in and by the same; relation thereto being had, may.
more fully and at large appear.
NOW KNOW YE, that in pursuance of and complyance with the said proviso
or condition, I, the said James Frost, do hereby declare that the nature of my

page_text: said Invention, and the manner in which the same is to be performed, are
hereafter particularly described and assertained, that is to say :-
My New Invented and Improved Method of Constructing and Fixing
and Arrangeing Window Lights and Sashes, of all Descriptions whatsoever,
consist of the following principles: first, in forming window sashes of
mettal, cast either whole or in parts as may be found necessary, and with
mitre joints, compleat both in the mouldings and rabbets intending to
hold the glass; and secondly, in forming molds for casting my new in-
vented window sashes, of brass or of iron or of other mettals either by
themselves or compounded, or of sand, clay, or other composition, as circum-
stances may require; my sashes may be made or cast of simple mettals or of
mettals compounded, which composition may be varied to suit the different
purposes for which they are intended; they answer equally well for large as
well as small squares. for gothic or girt windows, hot-house lights, melon or
garden frames, fan lights, and for windows of all descriptions.
Having above laid down the principles on which I form my new invented
sashes, as the purposes for which they are for and their shapes may be infinitely
varied, it is therefore impossible to give descriptions or Drawings of them all;
but those Drawings which follow, with what has been said, will sufficiently explain
the nature of the principles and nature of my Invention hereby intended to be
laid down, defined, or explained. Fig. 1 represents the brass moulds as they
are put together for receiving the metals to form the intended work. a, a, a, a,
tlie gits or pore holes to convey the metal into the moulds; b, b, b, exhibits the
transverse section of the end of the moulds; c, c, &c. air holes; d, d, d, the
joints at which the rabited part of the moulds open in order to take out the
metal when cast. Fig. 2 represents a mitre or cross angle of the work when
taken out of the moulds, after being cast. Fig. 3, 4, 5 are different kinds of
mouldings for various purposes.
In witness whereof, I, the said James Frost, do hereunto set my hand
and seal, this Twenty-seventh day of May, in the thirtieth year of our
Sovereign Lord George the Third, by the grace of God of Great
Britain, France, and Ireland King, Defender of the Faith, &c., &c.,
and in the year of our Lord One thousand seven hundred and
ninets

page_text: AND BE IT REMEMBERED, that on the Twenty-seventh day of May, in
the year of our Lord 1790, the aforesaid James Frost 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
Statutes made for that purpose.
Inrolled the Twenty-seventh day of May, in the year of our Lord One