IMPROVE- MENTS IN APPARATUS FOR REGULATING THE SUPPLY OF GAB
Year: 1872

page_text: LETTERS PATENT to William Thomas Sugg, of Vincent Works, Vincent
Street, in the City of Westminster, for the Invention of "IMPROVE-
MENTS IN APPARATUS FOR REGULATING THE SUPPLY OF GAB."
Sealed the 21st March, 1878, and dated the 26th September 1872.
PROVISIONAL SPECIFICATION left by the said William Thomas Sugg
at the Office of the Commissioners of Patents, with his Petition, on
the 26th September 1872.
I, WILLIAM THOMAS SUGG, of Vincent Works, Vincent Street, in the
City of Westminster, do hereby declare the nature of the said Invention
for "IMPROVEMENTS IN APPARATUS FOR REGULATING THE SUPPLY OF GAS," to be
as follows:-
This Invention has reference to modifications or improvements upon
apparatus for regulating the supply of gas, for which Letters Patent,
No. 2277, bearing date the Fifth day of September, 1866, and No. 3133,
dated October 13, 1868, were granted to me, and consists in making two
or more radial holes in the valve spindle a little above the valve; the

page_text: · said holes or channels having communication with a hole through the
centre of the spindle in the direction of its axis. The same effect may
be produced by puncturing the diaphragm or shield, or by making a
communication between the under and upper sides of the diaphragm.
Another modification consists in inserting the regulating valve in the
outlet instead of the inlet conduit. This is done by attaching to the
shield on the upper side of the diaphragm a conical, semi-globular, or
other suitably shaped valve which works into a seat formed in the outlet
on the top of the case. The valve has a hole in the direction of its
axis leading to two or more radial holes which serve as channels to
convey the gas to the burner. It is to be observed that it is imperative
that the internal capacity of the inlet for the gas should always be
larger than the outlet.
The object of these modifications is to prevent the necessity of making
any communication between the atmosphere and the upper side of the :
diaphragm (for the purpose of subjecting the said diaphragm to
atmospheric pressure) except through the burner itself.
One of the advantages attendant upon these arrangements is, that in
case any unintentional leakage should take place through the diaphragm
the gas so escaping will be consumed at the burner.
SPECIFICATION in pursuance of the conditions of the Letters Patent
filed by the said William Thomas Sugg in the Great Seal Patent
Office on the 26th March 1873.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
THOMAS SUGG, of Vincent Works, Vincent Street, in the City of 2
Westminster, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-sixth day of September, in the
year of our Lord One thousand eight hundred and seventy-three, in
the thirty-sixth year of Her reign, did, for Herself, Her heirs and 3
successors, give and grant unto me, the said William Thomas Sugg,
Her special license that I, the said William Thomas Sugg, my
executors, administrators, and assigns, or such others as I, the said
William Thomas Sugg, my executors, administrators, and assigns,

page_text: In governors, as first constructed by me, there was a liability for the
leather diaphragm to become too much depressed, I therefore inserted a
perforated metal disc to support it. One of the present improvements is
the substitution for the perforated metal disc of a metallic ring cast on
the case and which serves to support the diaphragm. As an auxiliary 5
for this purpose the lower metallic shield is formed with three legs or
feet which rest on the lower part of the case, and thus prevent the
possibility of the diaphragm sinking too low.
The object of these modifications is to prevent the necessity of
making any communication between the atmosphere and the upper side 1
of the diaphragm (for the purpose of subjecting the said diaphragm to
atmospheric pressure) except through the burner itself.
In order that the foregoing may be more easily understood Drawings
are attached hereto, of which the following is a description:-Fig. 1 is a
sectional elevation of a governor adapted for public lights. A being the 1
lower case; B, the cover; C, the diaphragm; D, the valve with its radial
and vertical holes; E, E, a ring cast on to the bottom of the case to
prevent the diaphragm becoming too much depressed, and F, F, the legs
of the shield, which also serve to support the diaphragm. Fig. 2 is an
elevation of the cover. Fig. 3 is a plan of the interior of Fig. 1.
2
Fig. 4 is a modification of Fig 1, in which it will be seen that the
valve G works against the seat H of the cover; and Fig. 5 shows a
modification of Fig. 1, suitable for argand burners and other private
lights. The arrows indicate the direction in which the gas flows.
One of the advantages attendant upon these arrangements is, that in 2
case any unintentional leakage should take place through the diaphragm,
the gas so escaping will be consumed at the burner.
Having now described and particularly set forth the nature of this
Invention, and the manner in which the same is or may be used or
carried into effect, I would observe in conclusion that I do not confine
or restrict myself to the precise details or arrangements which I have
described or referred to, as variations may be made therefrom without
deviating from the principles or main features of this Invention; but what
I consider to be novel and original and therefore claim as the Invention
secured to me by the herein-before in part recited Letters Patent is,―
Firstly. The making of governors or regulators with valves and gas-
ways as herein described.
3

page_text: Secondly. The construction of the lower case with the ring E, E.
And thirdly. Providing the shield with the legs. F, F, to support the
diaphragm as herein described.
In witness whereof, I, the said William Thomas Sugg, have here-
unto set my hand and seal, this Twenty-sixth day of March, in the
year of our Lord One thousand eight hundred and seventy-three.
WILLIAM T. SUGG.