IMPROVEMENTS IN APPARATUS FOR REGULATING THE PRESSURE OF GAS AND OTHER FLUIDS."
Year: 1859

page_text: LETTERS PATENT to George Dannett Robinson, 15, Church Street;
Islington, London, for the Invention of "IMPROVEMENTS IN APPARATUS FOR
REGULATING THE PRESSURE OF GAS AND OTHER FLUIDS."
PROVISIONAL SPECIFICATION left by the said George. Dannett Robinson
at the Office of the Commissioners of Patents, with his Petition, on.
the 21st September 1859.
I, GEORGE DANNETT ROBINSON, 15, Church Street, Islington, London, do
Lereby declare the nature of the said Invention for "IMPROVEMENTS IN
APPARATUS FOR REGULATING THE PRESSURE OF GAS AND OTHER FLUIDS," to be as
follows:-
My Invention for improvements relates, firstly, to apparatus for regulating
the pressure and flow of gas through pipes or other chambers, so as to maintain
a uniform pressure or supply to the burners, and consists in the adaptation
of a valve; in this particular the apparatus does not differ from other gas
regulators; the valve for regulating the passage of the gas between the inlet
and outlet chambers or compartments of the apparatus is carried by a cover
with turnd-down edges, which enter a trough contaning a fluid, by preference
quicksilver, and this cover moves on points or fulcrum, such fulcrum being
below the fluid, and one inch or more from the end, which causes the regulator

page_text: to be self-acting by the pressure of gas, and also acting as a break or check to
the valve to prevent the sudden pressure of gas from cutting off the lights (so
common in gas regulators); by this means the valve cannot be totally closed,
and the regulator becums self-acting.
My Invention is also applicable for regulating the pressure and flow of
steam and other gaseous fluids.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said George Dannett Robinson in the Great Seal Patent Office
on the 20th March 1860.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, GEORGE
DANNETT ROBINSON, of 15, Church Street, Islington, London, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-first day of September, in the year of our
Lord One thousand eight hundred and fifty-nine, in the twenty-third year of
Her reign, did, for Herself, Her heirs and successors, give and grant unto
me, the said George Dannett Robinson, Her special licence that I, the said
George Dannett Robinson, my executors, administrators, and assigns, or such
others as I, the said George Dannett Robinson, 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 In-
vention for "IMPROVEMENTS IN APPARATUS FOR REGULATING THE PRESSURE OF GAS
AND OTHER FLUIDS," upon the condition (amongst others) that I, the said
George Dannett Robinson, my executors or administrators, by an instrument
in writing under my, or their, or one of their hands and seals, 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 Dannett Robinson, do hereby
declare the nature of my said Invention, and in what manner the same
is to be performed, to be particularly described and ascertained in and by
the following statement and accompanying Drawings (that is to say):-
My Invention relates to improvements in apparatus for regulating the
pressure and flow of gas and other fluids, firstly, to apparatus for regulating the

page_text: pressure and flow of gas through pipes or other chambers, so as to maintain a
uniform and steady pressure to the burners, and consists in the adaptation of a
valve; in this particular the apparatus does not differ much from other gas
regulators now in use; for this purpose the gas is introduced by a supply pipe
into the inlet chamber or compartment of the apparatus; from this chamber or
compartment the gas passes into a second chamber or compartment, but the
amount of gas passed or passing from one chamber to the other is regulated
by means of the valve which is caused to close or open a passage between the
two compartments more or less as circumstances may require, that is, according
to the number of lights burning; the valve for regulating the
pressure of gas
between the inlet and outlet chamber or compartment of the apparatus is
carried by a cover with turned down edges, which enters a trough containing
a fluid, by preference quicksilver, and the cover moves on points or fulcrum
one inch or more from the end of the regulator, which causes the regulator to
be self-governing, and at the same time acting as a break, so that when a high
pressure comes on from the main, it cannot close the valve and cut off the gas
and put out the lights, so common in gas regulators; the cover is supported by
two pieces of brass on the sides that the screws or joints work upon; the
cover is also supported by an iron or brass rod upon the top over the points or
fulcrum, which makes the cover under a high pressure steady, and cannot
oscillate as is common in gas regulators, and also acts as a safety rod.
Fig. 1 shows a longitudinal section of my gas regulating apparatus, con-
structed and combined according to my Invention; Fig. 2 is a plan of the
regulator; the top and valve being removed shews the cover hung upon its
points in the trough which contains quicksilver; Fig. 3 shows a transverse
section with the valve hung upon the cover with the rod L upon the top of the
cover; Figs. 4 and 5 shows a longitudinal section of the regulator, with the
lid and valve reversed; similar letters of reference indicate corresponding parts.
in the several Drawings.
A shows the inlet; B, the outlet for the gas; G, a trough one inch or more
deep; D shows the cover with turn-down edges, and works in quicksilver,
which makes a gas-tight joint; E shows the iron casting of the regulator ; F
shows the valve that is attached to cover D, that by the rising of the cover D,
the valve will lessen the passage of gas, and will bring the valve near the
opening G, but will not close and cut off the gas, which is so common in gas
regulators. The gas is admitted into the chamber or compartment at A, there
being a screw plug to the other A to close the inlet not used; the gas outlet is
at B, and communicates with chamber H; I shows the fulcrum in the trough
C, that the cover D works upon, there being two screws or points to steady the

page_text: cover, and a brass or iron rod across the top above the fulcrum I; J shows a
screw plug to let out water from the regulator when fixed to wet meters;
Figs. 4 and 5 shows the opening and closing of the valve F, Fig. 4, with the
valve near closed with pressure; a small weight is placed upon the cover D,
which opens the valve F, and gives the pressure of gas required, and when
once adjusted will not get out of order, whatever the pressure may be from the
main, and only allows a sufficient quantity of gas to pass through chamber H,
according to the lights burning; also whatever the pressure from the main, the
valve cannot close, as there is the cover D to touch the bottom of trough C to
prevent the same.
Having thus described the nature of my Invention, and in what manner the
same is to be performed, I would have it understood that I do not claim as of
my Invention, or the exclusive use of the several parts of this regulator when
taken separately, such or similar parts having been in use in other gas
regulators; but what I claim as of my Invention intended to be secured by
the said Letter Patent is, a self-governing gas regulator with a break, having
an iron cover with a safety rod sustained and adjusted, as above described.
In witness whereof, I, the said George Dannett Robinson, have hereunto
set my hand and seal, this Twentieth day of March, in the year of our
Lord One thousand eight hundred and sixty.
GEORGE DANNETT ROBINSON. (L.S.)