IMPROVEMENTS IN STEAM ENGINES
Year: 1865

page_text: LETTERS PATENT to Charles Lungley, of Deptford, in the County of Kent,
Shipbuilder, for the Invention of "IMPROVEMENTS IN STEAM ENGINES."
PROVISIONAL SPECIFICATION left by the said Charles Lungley at the
Office of the Commissioners of Patents, with his Petition, on the 7th
February 1865.
I, CHARLES LUNGLEY, of Deptford, in the County of Kent, Shipbuilder, do
hereby declare the nature of the said Invention for "IMPROVEMENTS IN STEAM
ENGINES," to be as follows:-
These improvements apply to engines which are in part worked at high
pressure, and are fixed to the boiler on a separate bed plate, and with a
condenser attached so as to constitute part of the bed plate, the shaft being
solid so as to form the excentrics for working the air pumps and such other
parts of the engines as may be required. I forge the intermediate or other
parts of the shaft of oscillating and other engines with solid excentrics on
the shaft, and thus do away with the expense and risk of cranks on shafts.
This is applicable to all kinds of engines, and is intended to dispense with
the cranks, which are so liable to break; I also work the air pumps from the
piston rod, and supply the boiler direct from the condenser, thereby diminishing

page_text: all the before-named working parts and simplifying the general working of
the engines. For this purpose I fit a cross head to the end of the connecting
rod extending to the outside of the guides, and to this I attach the air pump
on one side and the circulating pump on the other. The air pump in this
case acts as a feed pump, and pumps direct from the condenser to the boiler.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Charles Lungley in the Great Seal Patent Office on the 7th
August 1865.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, CHARLES
LUNGLEY, of Deptford, in the County of Kent, Shipbuilder, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Seventh day of February, in the year of our Lord
One thousand eight hundred and sixty-five, in the twenty-eighth year of
Her reign, did, for Herself, Her heirs and successors, give and grant unto
me, the said Charles Lungley, Her special licence that I, the said Charles
Lungley, my executors, administrators, and assigns, or such others as I, the
said Charles Lungley, my executors, administrators, and assigns, should at any
time agree with, and no others, from time to time and at all times there-
after 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 STEAM ENGINES," upon the condition (amongst others) that I, the said
Charles Lungley, 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 Charles Lungley, do hereby declare the
nature of my said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement thereof, reference being had to the Drawings hereunto annexed,
that is to say:-
These improvements apply to engines which are in part worked at high
pressure, and are fixed to the boiler on a separate bed plate, and with a
condenser attached so as to constitute part of the bed plate, the shaft being

page_text: solid so as to form the excentrics for working the air pumps and such other
parts of the engines as may be required. I forge the intermediate or other
parts of the shaft of oscillating and other engines with solid excentrics on
the shaft, and thus do away with the expense and risk of cranks on shafts.
This is applicable to all kinds of engines, and is intended to dispense with
the cranks, which are so liable to break; I also work the air pumps from the
piston rod, and supply the boiler direct from the condenser, thereby diminishing
all the before-named working parts and simplifying the general working of
the engines. For this purpose I fit a cross head to the end of the connecting
rod extending to the outside of the guides, and to this I attach the air pump
on one side and the circulating pump on the other. The air pump in this
case acts as a feed pump, and pumps direct from the condenser to the boiler.
The accompanying Drawing shews the manner in which I carry my Inven-
tion into effect. A is a bed plate fixed upon a steam boiler; B, B, is a framing
on which the cylinder, condenser, and parts connected with them are sup-
ported; C is the condenser; D is the cylinder; E is the piston rod: F is a
cross head working up and down on the guide rods G, G; this cross head is
carried out on each side beyond the guide rods, and has fixed to it the piston.
rods H, H', of the air pump I and feed pump K; L is a rod connected to the
eccentric P; M is a rod connected to the eccentric O; N is the shaft showing
the excentrics O and P, which are forged solid therewith; Q is the pipe from
the condenser to the feed pump K.
And having now described the nature of the said Invention, and in what
manner the same is to be performed, I declare that I claim,-
First, the arrangement and combination of the parts of steam engines,
together with the working of the air and feed pumps, in manner before described
and represented in the accompanying Drawing.
And, second, constructing the shafts of steam engines with solid eccentrics,
as herein-before described.
In witness whereof, I, the said Charles Lungley, have hereunto set my
hand and seal, this Seventh day of August, One thousand eight hundred
and sixty five.
CHARLES LUNGLEY. (L.S.)