CERTAIN CONSIDERABLE IMPROVEMENTS IN ALL KINDS OF ENGINES, AND FOR EXTIN- GUISHING FIRE
Year: 1792

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, CHARLES
SIMPKIN, of Oxford Street, in the Parish of Saint Marylebone, in the County
of Middlesex, Engine Maker and Plumber, 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 Nineteenth day of December, in the thirty-third year of His
reign, give and grant unto me, the said Charles Simpkin, His special licence
that I, the said Charles Simpkin, during the term of years therein mentioned,
should and lawfully might use and exercise and vend, within England, the
Dominion of Wales, and Town of Berwick-upon-Tweed, my Invention of
"CERTAIN CONSIDERABLE IMPROVEMENTS IN ALL KINDS OF ENGINES, AND FOR EXTIN-
GUISHING FIRE;" in which said Letters Patent there is contained a proviso,
obliging me, the said Charles Simpkin, under my hand and seal, to cause a
particular description of the nature of my said Invention and improvement,
and how the same is to be used and 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, I, the said
Charles Simpkin, do hereby declare that my said Invention of certain con-
siderable improvements in all kinds of engines for the purpose of extinguishing
fire, is described in the explanation following, that is to say :-

page_text: My Invention consists in exploding or removing the values both from or
out of the part or parts of the cylinder or cylinders where the vacuum is
made by the peston, fan, or fly, or by what other name soever it may be
called or denominated, and from under or out of the air vessel, and in placing,
inserting, or making use of the values in the following manner, by appli-
cation of certain receptacles or chambers, for the express intent or purpose of
containing the values only, thereby rendering the values more free of access,
and preventing the necessity of opening any other parts of the engine, except
those chambers where the values are contained...Of this improvement, I say
that all chambers or receptacles for containing the values are hereby considered
and established as my Invention, be they placed howsoever or wheresover in
the engine, and that they may be fixed or used at any required distance from
or annexed to the air vessel, or either or all of the barrels or tubes or cylinders
in any engine constructed for the purpose of extinguishing fire, and that my
chambers or receptacles are considered to contain any number of values which
may or can be introduced; and that by this my Invention or these improve-
ments, access may be had separately or severally when required for any purpose
by means of a screw or flanché screwed on to or against 'the chambers for the
specified purpose in such case provided, or by any other more easy or ready
method; and that, agreeable to this my Invention or improvement, it appears
clearly and shall be considered to obviate the necessity of drawing the forces,
fan, or fly, or opening of the air vessell or cylinders, as necessity has occasioned
in all former engines not having these improvements. My chambers are or
may be easily applied to the cylinders or air vessell by means of copper or
other pipes, soldered or screwed at pleasure. Engines, I say, 'may be improved
without the use of chambers or receptacles, herein expressed, by the simple
method of screwing on a flanche or screw over any aperture, by which access
be had to the values. And, further, my Invention consists in the intro-
duction of a certain filtering chamber or receptacle, chambers or receptacles,
with certain partitions or divisions, to preserve the effect of the values during
the use of any improper fluid, which filtering chamber or chambers, with its
partitions or divisions, is to be fixed or placed between the suction values and
the strainer or rose now in use on the suction pipe. And although it is
allowed that the present roses or strainers do in some cases preserve the effect
of the engine during operation,' yet this is intended to preserve it more
effectually by a finer filtration, and thereby secure the powers' and effects' of
the engine for a longer time than without this improvement. Easy access may
be had to these partitions in the filtering chamber by means described in the
may

page_text: foregoing specified improvement respecting the valves; the partitions may be
ine wire work, or any other substitute which will act as a first and second
iltration in the chamber.
L
here homounta sat
oregoing specified improvement respecting the valves; the partitions may be
ine wire work, or any other substitute which will act as a first and second
iltration in the chamber.
In witness whereof, I, the said Charles Simphis, have hereunto sot
my hand and seal, this Sixteenth day of January, in the year of our
Lord One thousand seven hundred and ninety-three.
AND BE IT REMEMBERED, that on the same Sixteenth day of January,
in the year above mentioned, the aforesaid Charles Simpkin came before
O our Lord the King in His Chancery, and acknowledged the Specification
aforesaid, and all and every thing therein contained, in form above written.
And also the Specification aforesaid was stamped according to the tenor of the
Statute in that case made and provided.
Inrolled the Seventeenth day of January, in the year above written.