A NEW AND IMPROVED METHOD AND APPARATUS FOR PURGING CYLINDERS OF STEAM ENGINES
Year: 1875

page_text: LETTERS PATENT to Alexander Browne, of the Firm of Browne and
Company, Patent Agents, of 5, Southampton Buildings, Holborn,
in the County of Middlesex, for the Invention of "A NEW AND
IMPROVED METHOD AND APPARATUS FOR PURGING CYLINDERS OF STEAM
ENGINES." A communication from abroad by Alexandre Joseph
Gravelainc-Malorey and Louis Coly, both of Paris, in the French
Republic.
-
Sealed the 21st September 1875, and dated the 25th March 1875.
PROVISIONAL SPECIFICATION left by the said Alexander Browne at
the Office of the Commissioners of Patents, with his Petition, on
the 25th March 1875.
:
f
I, ALEXANDER BROWNE, of the Firm of Browne and Company, Patent
5 Agents, of 5, Southampton Buildings, Holborn, in the County of Mid-
dlesex, do hereby declare the nature of the said Invention for "A New
AND IMPROVED METHOD AND APPARATUS FOR PURGING CYLINDERS OF STEAM
ENGINES," a communication from abroad by Alexandre Joseph Gravelaine-

page_text: This Invention relates to a new and improved method and apparatus
for purging cylinders of steam engines of any water formed or carried
therein, by means of which the operation is continuous and self-acting.
The Drawing accompanying this Specification shows a sectional
elevation of an apparatus constructed according to this Invention.
a is a cylinder, furnished at 6 with a flange picce; d, outlet pipe fixed
to the flange piece by means of the ring e with bolts or rivets;
ff, chambers fixed at each end of the cylinder a; h, h¹, pipes secured
to the chambers f,f¹, by the rings i, i, with bolts or rivets, and which
communicate with both ends of the cylinder of the engine; j,j', seats
provided inside the chambers f,f¹; k, k', valves hinged in such a way
that they may rest on the seats j, j¹. These valves are united to each
other by the connecting rod 7 linked thereto at m, m². The connecting
rod is of such a length that when one valve is open the other shall be
shut.
The operation of an apparatus constructed as above is as follows:-
Supposing steam to be admitted into the cylinder on the right-hand
side the pressure will move the piston, and at the same time close the
valve the rod 7 will open the valve k, so that the left-hand side of the
cylinder will be in communication with the outlet pipe d, and vice versa,
at each stroke of the engine.
By means of this apparatus the condensed steam or water carried in
the cylinder is forced out at each stroke of the piston.
filed by the said Alexander Browne in the Great Seal Patent Office
on the 25th September 1875.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ALEXANDER 30
BROWNE, of the Firm of Browne and Company, Patent Agents, of 5,
Southampton Buildings, Holborn, in the County of Middlesex, send
greeting.

page_text: WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-fifth day of March, in the year
of our Lord One thousand eight hundred and seventy-five, in the thirty-
eighth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Alexander Browne, Her special licence
that I, the said Alexander Browne, my executors, administrators, and
assigns, or such others as I, the said Alexander Browne, 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 "A NEW AND
IMPROVED METHOD AND APPARATUS FOR PURGING CYLINDERS OF STEAM ENGINES,'
a communication from abroad by Alexandre Joseph Gravelaine-Malorey
and Louis Coly, both of Paris, in the French Republic, upon the condition
(amongst others) that I, the said Alexander Browne, 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 Alexander Browne, 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, that is to say:―
This Invention relates to a new and improved method and apparatus
for purging cylinders of steam engines of any water formed or carried
therein, by means of which the operation is continuous and self-acting.
The Drawing accompanying these Presents shows a sectional elevation
of an apparatus constructed according to this Invention.
a is a cylinder, furnished at 6 with a piece; d, outlet pipe fixed
to the flange piece b by means of the ring e with bolts or rivets;
ff, chambers fixed at each end of the cylinder a; h, h, pipes secured
to the chambers f,f¹, by the rings i, i, with bolts or rivets, and which
communicate with both ends of the cylinder of the engine; j, j', seats
provided inside the chambers f,f¹; k, k³, valves hinged in such a way

page_text: that they may rest on the seats j, j¹. These valves are united to each
other by the connecting rod linked thereto at m, m³. The connecting
rod is of such a length that when one valve is open the other shall be
shut.
The operation of an apparatus constructed as above is as follows:-
Supposing steam to be admitted into the cylinder on the right-hand
side, the pressure will move the piston and at the same time close the
valve k¹; the rod will open the valve k, so that the left-hand side of the
cylinder will be in communication with the outlet pipe d, and vice versa,
at each stroke of the engine.
By means of this apparatus the condensed steam or water carried in
the cylinder is forced out at each stroke of the piston.
This apparatus may be applied to all kinds of steam engines.
Having now set forth the nature of the Invention for "A New and
Improved Method and Apparatus for Purging Cylinders of Steam
Engines," as communicated to me by my foreign correspondent, and
explained the manner of carrying the same into effect, I would remark
in conclusion that I hereby declare this Invention to consist in, and I
claim, the method and apparatus for purging cylinders of steam engines,
substantially as described and represented.
In witness whereof, I, the said Alexander Browne, have hereunto
set my hand and seal, this Twenty-fifth day of September, in
the year of our Lord One thousand eight hundred and seventy-
five.