IMPROVED MEANS AND APPLIANCES FOR REGULATING THE WORKING OF STEAM ENGINES
Year: 1875

page_text: LETTERS PATENT to William Galsworthy, of Grimsbury, in the
County of Northampton, Engineer, for the Invention of "IMPROVED
MEANS AND APPLIANCES FOR REGULATING THE WORKING OF STEAM
ENGINES."
Sealed the 21st March 1876, and dated the 20th October 1875.
PROVISIONAL SPECIFICATION left by the said William Galsworthy at
the Office of the Commissioners of Patents, with his Petition, on
the 20th October 1875.
I, WILLIAM GALSWORTHY, of Grimsbury, in the County of North-
ampton, Engineer, do hereby declare the nature of the said Invention for
"IMPROVED MEANS AND APPLIANCES FOR REGULATING THE WORKING OF STEAM
ENGINES," to be as follows:-
My Invention relates to special means and fitting of appliances to
steam engine condensors and the governor for the purpose of pre-
venting an engine racing from any cause, and to maintain a regularity
of action.

page_text: The Invention consists in attaching to some convenient part of a con-
densor a pipe with a tap or valve at its opposite end, such tap or valve
being attached to the governor by any suitable appliance.
The pipe between the governor and the condensor forms a connection,
and serves when the tap is opened by any appliance to reduce the 5
vacuum to the desired degree, and exert an influence upon the engine,
whereby a uniform speed can be maintained.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said William Galsworthy in the Great Seal Patent Office
on the 20th April 1876.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
GALSWORTHY, of Grimsbury, in the County of Northampton, Engineer,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twentieth day of October, in the year
of our Lord One thousand eight hundred and seventy-five, in the
thirty-ninth year of Her reign, did, for Herself, Her heirs and suc-
cessors, give and grant unto me, the said William Galsworthy, Her
special licence that I, the said William Galsworthy, my executors,
administrators, and assigns, or such others as I, the said William Gals-
worthy, 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
"IMPROVED MEANS AND APPLIANCES FOR REGULATING THE WORKING OF STEAM
ENGINES," upon the condition (amongst others) that I, the said William
Galsworthy, 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.

page_text: NOW KNOW YE, that I, the said William Galsworthy, do hereby
declare the nature of my said Invention, 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 :-
My Invention relates to special means and fitting of appliances to
steam engine condensers and the governor for the purpose of preventing
an engine racing from any cause, and to maintain a regularity of
action.
The Invention consists in attaching to some convenient part of a con-
denser a pipe with a tap or valve at its opposite end, such tap or valve
being attached to the governor by any suitable appliance.
The pipe between the governor and the condenser forms a connection,
and serves when the tap is opened by any appliance to reduce the
vacuum to the desired degree, and exert an influence upon the engine,
whereby an uniform speed can be maintained.
The Invention will be clearly understood by reference to the annexed
Drawings, in which Figure 1 is a view of an engine with its piston rod
cross head A in connection by a link B with a long arm C of the air
pump D, which is in connection with the condenser E in the ordinary
manner.
The condenser is provided with a valve F, shown detached at Figures 2
and 3, whose lever G is fulcrumed at H, in order that when the governor
balls open out at any attempt at racing by the engine the socket I lifts
and acts upon the rod G by the link K, and opens the valve port to
admit sufficient air into the condenser to destroy the vacuum for the
time being, and thus regulate the working of the engine, the governor
at the same time partly shutting the throttle valve in the steam pipe to
check or reduce the flow of steam through the same.
Figure 4 represents another arrangement of levers and rods for
accomplishing the object of my Invention, and will be clearly understood
by the Drawing.
Figures 5, 6, and 7 show details of a compound or double valve
suitable to be used for the purposes of my Invention; it is fitted in or
to the condenser. The inner valve L is attached to the lever, so that it is
acted upon, first, to admit a small quantity of air into the condenser,

page_text: the air passing through the centre of the outer valve M, in which the
inner one works, and is seated. The outer valve then lifts by the
contact of a plate or collar on the bottom of the inner one acting on
the bottom of the outer one, and the two move together as one valve,
the air then passing through the seating of the larger valve to the desired
extent.
The amount of play in the rod which works through a hole in the end
of the valve lever is regulated by the set nut.
I have shown the compound valve enclosed in a kind of box perforated
at the sides, the cap of the box serving to guide the valve stem up and
The top may however be left open.
down.
Having now described the nature of my said Invention, and in what
manner the same is to be performed, I wish it to be understood that I
do not confine myself to the exact arrangement of appliances shown, as
that can be varied to suit the particular construction of engine to which
my Invention has to be fitted; but I claim,—
The means and apparatus for regulating the working of steam engines,
as described and substantially as shown.
Secondly. I claim the temporary breaking of a vacuum in a condenser
of an engine to regulate the speed thereof, as described and by apparatus
substantially as shown.
In witness whereof, I, the said William Galsworthy, have here-
unto set my hand and seal, this Nineteenth day of April, One
thousand eight hundred and seventy-six.
WILLIAM GALSWORTHY. (L.S.)