AN IMPROVED APPARATUS FOR REGULATING THE HEAT AND SUPPLY OF WAARD IN HOT WATER APPARATUS
Year: 1853

page_text: LETTERS PATENT to George Critchley, of Cheltenham, in the
County of Gloucester, Whitesmith, for the Invention of "AN
IMPROVED APPARATUS FOR REGULATING THE HEAT AND SUPPLY OF
WAARD IN HOT WATER APPARATUS
"
Sealed the 14th June 1853, and dated the 27th April 1853.
PROVISIONAL SPECIFICATION left by the said George Critchley
at the Office of the Commissioners of Patents, with his Petition,
on the 27th April 1853.
I, GEORGE CRITCHLEY, do hereby declare the nature of the said In-
vention för "AN IMPROVED APPARATUS FOR REGULATING THE HEAT AND
SUPPLY OF WATER IN HOT WATER APPARATUS " to be as follows:-
This Invention consists in certain new mechanical arrangements and
combinations of parts, constituting an apparatus by which the supply of
water heat in hot water apparatus can be regulated and directed to any
particular part of a building at pleasure. And in order to explain and
ascertain the nature of this Invention more fully, I will proceed to
describe the illustrative Drawing hereunto annexed, explanatory thereof,
as follows:

page_text: DESCRIPTION OF THE DRAWING.
Fig. 1, exhibits a perspective elevation of an apparatus constructed
according to this Invention. Fig. 2, is a geometrical section taken
through the line A, B, at Fig. 1. At each of these Figures the same
letters of reference are employed to denote corresponding parts.
A, A, marks a cast iron casing or box, within which double slides
B, B, are placed, and have openings formed therein corresponding with
openings formed in the casing or box, to which are attached the branch
pipes C, C, C, and main pipes D, D. The slides B, B, have rods securely
fixed thereto, which work through stuffing boxes a, for keeping tliem
water-tight, and have handles b, attached thereto for actuating said
slides; and there are divisions or marks formed upon the upper part of
said rods for ascertaining the extent to which the openings in the casing
or box A, are open, and by which the attendant is enabled to regulate
and direct to a nicety the supply of water and heat. E, is a pipe, one
end of which is open to the atmosphere, and for the purpose of carrying
off the air which accumulates from time to time in the apparatus; and,
supposing all the slides to be down, and the communication between the
pipes C, C, C, to be cut off, the circulation of the water will then be
confined to and directed through the main pipes D, D; and by these
means I have perfect control over the circulation of the water, and heat
arising therefrom.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said George Critchley in the Great Seal Patent Office,
on the 27th October 1853.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I,
GEORGE CRITCHLEY, of Cheltenham, in the County of Gloucester, White-
smith, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-seventh day of April, in the
year of our Lord One thousand eight hundred and fifty-three, in the
sixteenth year of Her reign, did, for Herself, Her heirs and successors,

page_text: give and grant unto me, the said George Critchley, Her special licence
that I, the said George Critchley, my executors, administrators, and
assigns, or such others as I, the said George Critchley, my executors,
administrators, and assigns, should at any time agree with, and no
others, from time to time and at all times thereafter during the term
therein expressed, should and lawfully might make, use, exercise, and
vend, within the United Kingdom of Great Britain and Ireland, the
Channel Islands, and Isle of Man, an Invention for "AN IMPROVED
APPARATUS FOR REGULATING THE HEAT AND SUPPLY OF WATER IN HOT
WATER APPARATUS," upon the condition (amongst others) that I, the
said George Critchley, by an instrument in writing under my hand and
seal, should particularly describe and ascertain the nature of the said
Invention, and in what manner the same was to be performed, and
cause the same to be filed in the Great Seal Patent Office within six
calendar months next and immediately after the date of the said Letters
Patent.
NOW KNOW YE, that I, the said George Critchley, do hereby
declare the nature of the said Invention, and in what manner the same
is to be performed, to be particularly described and ascertained in and
by the following statement thereof (that is to say):
My Invention consists in certain new mechanical arrangements and
combinations of parts, constituiting an apparatus by which the supply of
water and heat in hot water apparatus can be regulated and directed to
any particular part of a building at pleasure.
And, in order to explain my said Invention as completely as pos-
sible, I now proceed to describe the best means I am acquainted
with for carrying the same into practical effect, reference being had
to the illustrative drawing hereunto annexed, and to the numeral
figures and letters of reference marked thereon respectively, as
follows:
DESCRIPTION OF THE DRAWING.
Figure 1, exhibits a perspective elevation of an apparatus constructed
according to my said Invention. Figure 2, is a geometrical section
taken through the line A, B, 'at Figure 1. At each of these Figures I
employ similar letters of reference to denote corresponding parts, in so

page_text: far as such parts appear or can be seen at each of the Figures respec-
tively.
A, A, marks a cast iron casing or box formed with holes or
openings, to which are affixed branch pipes B, B1, B2, and main pipes
C, C; the box or casing A, is fitted with double slides D, D, which
have openings formed therein corresponding with those openings in the
case A, to which the branch pipes B, B1, B2, are affixed. The slides
D, D, have rods d, securely connected thereto, which work through
stuffing boxes a, a, for keeping them water-tight; and there are handles
b, b, attached to the upper ends of the rods d, d, for raising and lowering
such said slides, according as it is required to establish or cut off wholly
or partially the communication between the casing or box A, and one
or other of the sets of branch pipes B, B1, B2, and thereby to regulate
the quantity of water and heat which passes through the same, which I
am enabled to do to a nicety by forming divisions or marks upon the
upper part of the rods d, and passing such part through holes in the
plate E. F, is a pipe attached to the casing or box A, and employed
for the purpose of carrying off the air which accumulates from time to
time in the apparatus, the outer end of the pipe F, being open to the
atmosphere for that purpose.
MODUS OPERANDI.
Supposing the main pipes C, C, to be in connection with a boiler,
such as is ordinarily used in hot water apparatus, and the slides D, D,
to be all down, so as to cut off the communication between the casing
or box A, and the branch pipes B, B1, B2, it will appear evident that
the circulation of the water will be confined to and directed through
the main pipes C, C; and when it is required to extend the circulation
through any or all of the branch pipes the same may be effected by
raising the handles b, b, by which I have perfect control over the circu-
lation of the water, and consequently of the heat arising therefrom.
Having now described the nature of my said Invention and in what
manner the same is to be and may be performed, I desire it to be
distinctly understood that I. do not claim the exclusive use of any of
the separate parts above mentioned and referred to, except in so far

page_text: as the same may be employed in combination, and for the purposes of
my said Invention, which I hereby declare to consist in, and I claim
as of my Invention of "An Improved Apparatus for Regulating the
Heat and Supply of Water in Hot Water Apparatus," the mechanical
arrangements and combinations of parts for effecting the same as
herein-before particularly described, set forth, and represented by the
illustrative Drawing hereunto annexed.
In witness whereof, I, the said George Critchley, have hereunto
set my hand and seal, this Twenty-sixth day of October, in the
year of our Lord One thousand eight hundred and fifty-three.
GEORGE CRITCHLEY. (L.S.)
Witness, WILLIAM SEABRIGHT,
Builder,
Victoria St., Cheltenham.