IMPROVEMENTS IN APPARATUS EMPLOYED IN THE MANUFACTURE OF GAS
Year: 1861

page_text: Sealed the 18th March 1862, and dated the 21st September 1861.
PROVISIONAL SPECIFICATION left by the said Henry Cockey and
Francis Christopher Cockey at the Office of the Commissioners of
Patents, with their Petition, on the 21st September 1861.
We, HENRY COCKEY and FRANCIS CHRISTOPHER COCKEY, of the Frome Iron
Foundry, in the County of Somerset, Engineers, do hereby declare the nature
of the said Invention for "IMPROVEMENTS IN APPARATUS EMPLOYED IN THE
MANUFACTURE OF GAS," to be as follows:-
This Invention relates to a peculiar arrangement connected with those parts
of the apparatus employed in the manufacture of gas for lighting and other
purposes, known as the "dip pipe" and "hydraulic main," and its object is to
allow for the contraction and expansion of the ascension pipe, and thereby to
prevent the strain upon the joints of those pipes, and upon the mouth-pieces of
the retorts.
According to this Invention, it is proposed to fix in the hydraulic main a
short flanch pipe sufficiently long to give the necessary seal for the dip, pipe ;
and this pipe is to be bored out so as to allow the dip pipe to pass through it.
The outside of the dip pipe is to be turned to fit the short pipe truly, but

page_text: allowing it space to shift easily through it as the ascension pipe expands or
contracts. In fixing the pipes, the lower edge of tho dip pipo should extend
hous vestor of an inch below the outer nine.
SPECIFICATION in pursuance of the conditions of the Lettors Patent, filed
by the said Henry Cockey and Francis Christopher Cockey in the Great
Seal Patent Office on the 21st March 1862.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, HENRY
COCKEY and FRANCIS CHRISTOPHER COCKEY, of the Frome Iron Foundry, in
the County of Somerset, Engineers, 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 sixty-one, in the twenty-fifth year of Iler
reign, did, for Herself, Her heirs and successors, give and grant unto us, tho
said Henry Cockey and Francis Christopher Cockey, Her special license that
we, the said Henry Cockey and Francis Christopher Cockey, our executors,
administrators, and assigns, or such others as we, the said Henry Cockey
and Francis Christopher Cockey, our executors, administrators, or 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
"IMPROVEMENTS IN APPARATUS EMPLOYED IN THE MANUFACTURE OF GAS," upon the
condition (amongst others) that we, the said Henry Cockey and Francis
Christopher Cockey, our executors or administrators, by an instrument in
writing under our hands and seals, or under the hand and seal of one of tliem,
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 we, the said Henry Cockey and Francis Christopher
Cockey, do hereby declare the nature of our said Invention, and in what
manner the same is to be performed, to be particularly described and ascer
tained in and by the following statement, reference being had to the
accompanying Drawings, and to the letters and figures marked thereon, that
is to say-
Our said Invention relates to a peculiar arrangement connected with those

page_text: parts of the apparatus employed in the manufacture of gas for lighting and
other purposes, known as the "dip pipe" and "hydraulic main," and its object
is to allow for the contraction and expansion, or rise and fall of the ascension
pipe, and thereby to prevent the strain upon the joints of those pipes, and upon
the mouth-pieces of the retorts.
According to this Invention, it is proposed to fix in the bydraulic main a
short flanch pipe, sufficiently long to give the necessary seal for the dip pipe;
and this pipe is to be bored out so as to allow the dip pipe to pass through it.
The outsido of the dip pipe is to be turned to fit the short pipe truly, but
allowing it space to shift easily through it as the ascension pipe expands or
contracts. In fixing the pipes, the lower edge of the dip pipe should extend
about a quarter of an inch below the outer pipe.
And in order that our said Invention may be fully understood, we shall now
proceed more particularly to describe the same, and for that purpose we shall
refer to the illustration given on the annexed Sheet of Drawings, which
represents a vertical section of an ascension and dip pipe, and transverse section
of the bydraulic main, with our improvements applied thereto.
A is the hydraulic main, and B is the short flanch pipe projecting therein,
and dipping into the water of the main, so as to seal the pipe; C is the dip
pipe, which passes freely through the short pipe B, so as to be capable of rising
or falling therein as the ascension pipes D expand or contract. A door E is
fitted to the upper part of the dip pipe for facilitating the cleaning thereof,
and of the branch F leading to the ascension pipe.
Having now described and particularly ascertained the nature of our said
Invention, and the manner in which the same is or may be used or carried
into effect, we would observe, in conclusion, that what we consider to be novel
and original, and therefore claim as the Invention secured to us by the herein-
before in part recited Letters Patent, is, the combination with the hydraulic
main of a pipe or socket through which the dip pipe may shift freely for the
purpose herein-before described.
In witness whereof, we, the said Henry Cockey and Francis Christopher
Cockey, have hereunto set our hands and seals, this Nineteenth day
HENKY
CKEY.
(L.B.)
FRANCIS CHRISTOPHER COCKEY. (L.S.)