CERTAIN IMPROVEMENTS IN MARINE AND OTHER ENGINES
Year: 1862

page_text: LETTERS PATENT to Richard Glanville, of Bermondsey, in the County of
Surrey, Engineer, for the Invention of "CERTAIN IMPROVEMENTS IN MARINE
AND OTHER ENGINES."
PROVISIONAL SPECIFICATION left by the said Richard Glanville at the
Office of the Commissioners of Patents, with his Petition, on the 2nd
September 1862.
I, RICHARD GLANVILLE, of Bermondsey, in the County of Surrey, Engineer,
do hereby declare the nature of the said Invention for "CERTAIN IMPROVEMENTS
IN MARINE AND OTHER ENGINES," to be as follows:
The improvements relate to the construction of steam engines for the
purpose of economising fuel and space, to accomplish which I place a series of
steam cylinders within each other; these cylinders have pistons fitted to each,
and connected by rods and cross heads, or any other suitable mode, to cause
them to move simultaneously. Each cylinder is supplied with steam by the
aid of valves in order that each piston shall receive the steam from each other
alternately, the steam being first used in the central cylinder, expands as the
cylinders enlarge till it is condensed upon the principle commonly known as
Woolf's. I make no claim to the principle of using the steam expansively;
but what I do claim is the arrangement of the cylinders, pistons, and valves.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Richard Glanville in the Great Seal Patent Office on the
2nd March 1863.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, RICHARD
GLANVILLE, of Bermondsey, in the County of Surrey, Engineer, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Second day of September, in the year of our
Lord One thousand eight hundred and sixty-two, in the twenty-sixth year
of Her reign, did, for Herself, Her heirs and successors, give and grant
unto me, the said Richard Glanville, Her special licence, that I, the said
Richard Glanville, 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 "CERTAIN IMPROVE-
MENTS IN MARINE AND OTHER ENGINES," upon the condition (amongst others)
that I, the said Richard Glanville, by an instrument in writing under my
hand and seal, 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 Richard Glanville, do hereby declare
the nature of the said Invention of improvements in marine and other engines,
and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement thereof, that is to say :—
The improvements relate to the making use of the heat that radiates
through the high-pressure steam cylinder as a means of preserving the tem-
perature of the steam in the expansive steam cylinder, and also in economising
space; to accomplish which I place a series of cylinders within each other
and connect them by their flanches and covers (or cover and bottom, the term
being synonymous), and cause the pistons to move simultaneously. I connect
the piston rods to a cross head connecting rod, which operates on one crank.
The cylinders are charged with steam by the aid of valves so arranged that
each piston shall receive the impulse of the steam alternately. The steam first
operates on the piston of the central or high-pressure cylinder, then expands
into the large one that surrounds it, and is then condensed upon the principle

page_text: commonly known as Woolf's. An engine thus arranged I denominate an
"annular expansive condensing steam engine."
But that the nature of these my improvements may be better understood
I will proceed to describe the Drawings hereto annexed, which shew an
arrangement of two cylinders one within the other.
Figures 1 and 2 represent a vertical and transverse section of the engine,
according to my Invention, constructed upon the oscillating principle; and
Figures 3 and 4 represent a plan and side view of the same. The central or
high-pressure cylinder is represented as being cast into the bottom, which
bottom answers as the bottom of the two cylinders, and the top end fits into a
recess in the cover, which cover answers as cover for the two cylinders.
C, C, the annular or large cylinder connects the whole together by the
flanches being screwed to the cover f, f, and bottom by the aid of screwed
bolts and nuts, the whole thus forming two separate and distinct cylinders;
S, the steam pipes that convey the steam from the boiler to the small or high-
pressure cylinder; S, S, the steam pipes that convey the steam from the small
cylinder to the slide valve V; S, S, S, the passages that convey the steam into
and out of the large or annular cylinder; a, a, represents the stops valves in
the steam pipes S, S; these valves are opened by the steam; V, V, the slido
valves that regulate the high-pressure steam in the small cylinder; P, P, tho
annular piston, and p, p, the small piston in the central cylinder; R, the
piston rod of the small cylinder; R, R, R, R, the piston rods of the large
cylinder piston; X, X, the cross head connecting rod with the crank bearing
attached; 0, 0, the large, and o, o, the small slide valve rods; 9, 9, the guides;
7, 7, the levers; and W, the side lever that receives the motion from the
eccentric and transmits it, through the agency of the rods and levers, to the
slide valves to cause the steam first to perform, and then to pass from the upper
side of the small piston to the lower side of the large piston, as is represented
by the annexed Drawing, Figure 2, and from the lower side of the small
piston to the upper side of the large one; j,j,j, the slide valve cases; T, T, T,
the trunions; and e, the exhaust pipe. The Drawings above described repre-
sent my Invention as carried out in an arrangement of a series of two cylinders,
and it will be obvious to any mechanic conversant with the subject bow to
arrange a series of three cylinders to effect the same object.
Having thus described the nature of my said Invention, and in what manner
the same may be carried into effect, I would have it understood that I do not
confine myself to the precise details as shewn and described, as these may be
varied without departing from my Invention; but what I do claim is the

page_text: arranging and combining a series of cylinders one within the other so as to
concentrate the radiated heat of the high-pressure cylinder and to economise
space.
In witness whereof, I, the said Richard Glanville, have hereunto set my
hand and seal, this Twenty-eighth day of February, in the year of our
Lord one thousand eight hundred and sixty-three.
Signed and sealed by the said
Richard Glanville in the
presence of
P. G. GREVILLE, Sol',
St. Swithin's Lane.
RICHARD GLANVILLE. (L.s.)