IMPROVEMENTS IN GOVERNORS OR APPLIANCES FOR CONTROLLING THE SPEED OF ENGINES IN STEAM PROPELLED SHIPS
Year: 1879

page_text: LETTERS PATENT to Robert Waddell and Daniel Taylor, both of Liverpool, in
the County of Lancaster, Engineers, for the Invention of "IMPROVEMENTS IN
GOVERNORS OR APPLIANCES FOR CONTROLLING THE SPEED OF ENGINES IN
STEAM PROPELLED SHIPS."
Sealed the 19th March 1880, and dated the 7th October 1879.
PROVISIONAL SPECIFICATION left by the said Robert Waddell and Daniel
Taylor at the Office of the Commissioners of Patents on the 7th October 1879.
ROBERT WADDELL and DANIEL TAYLOR, both of Liverpool, in the County of
Lancaster, Engineers. "IMPROVEMENTS IN GOVERNORS OR APPLIANCES FOR ČON-
TROLLING THE SPEED OF ENGINES IN STEAM PROPELLED SHIPS."
The object of our Invention is to provide appliances for regulating the speed of
marine engines so as to maintain an uniform velocity of the same and to prevent
racing or an excessive rate of motion when the ship or vessel is so pitching or
rolling as to raise the propeller or propellers more or less out of the water.
Preventing water from entering the ship, past our said appliances is one of the
objects aimed at by our improvements.
The Invention consists in fitting a piston in a cylinder, one end of which latter is
in direct communication with the water outside the ship or vessel near to the
propeller or propellers, and in connecting the said piston by means of a rod, chain,
or suitable connection to one or more of the following appliances :-(a) the throttle
or equivalent valve regulating the admission of steam to the engines, (b) a valve
controlling the emission of the exhaust steam from the said engines, (c) a valve
governing the quantity of condensing water supplied to the condensers, and, (d) the
steam valves of auxiliary steam engines used for causing the condensing water to
circulate through the condensers.
A spring or springs is or are used to maintain the piston at one extremity of the
cylinder, so that the greater the pressure of water on the piston in the cylinder the
the greater will be the compression of the spring or springs due to the longer travel
of the piston. In the cylinder on that side of the piston not open to the sea there

page_text: is a passage through a valve or otherwise to the atmosphere to allow air to pass
inwards or outwards.
More than one piston and cylinder may be used, and each piston or cylinder may
be connected to one or more valves. The said cylinders are preferably provided
with stop valves whereby communication with the sea may be cut off, and the
pistons are usually arranged so as to actuate the desired valves through tension rods
or appliances.
It is desirable that the spring or springs should be placed in the engine room, so
that its or their tension may be readily adjusted; and that an indicator or indicators
should be attached to some moving part of the connections, so that the motion of the 1
governor may be observed.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Robert Waddell and Daniel Taylor in the Great Seal Patent Office on
the 7th April 1880.
ROBERT WADDELL and DANIEL TAYLOR, both of Liverpool, in the County of
Lancaster, Engineers. "IMPROVEMENTS IN GOVERNORS OR APPLIANCES FOR
CONTROLLING THE SPEED OF ENGINES IN STEAM PROPELLED SHIPS."
The object of our Invention is to provide appliances for regulating the speed of
marine engines so as to maintain an uniform velocity of the same and to prevent
racing or an excessive rate of motion when the ship or vessel is so pitching or
rolling as to raise the propeller or propellers more or less out of the water.
Preventing water from entering the ship past our said appliances is one of the
objects aimed at by our improvements.
The Invention consists in fitting a piston in a cylinder, one end of which latter is
in direct communication with the water outside the ship or vessel near to the
propeller or propellers, and in connecting the said piston by means of a rod, chain,
or suitable connection to two or more of the following appliances:-(a) the throttle
or equivalent valve regulating the admission of steam to the engines, (b) a valve
controlling the emission of the exhaust steam from the said engines, (c) a valve
governing the quantity of condensing water supplied to the condensers, and (d) the
steam valves of auxiliary steam engines used for causing the condensing water to
circulate through the condensers.
A spring or springs is or are used to maintain the piston at one extremity of the
cylinder, so that the greater the pressure of water on the piston in the cylinder the
greater will be the compression of the spring or springs due to the longer travel of
the piston. In the cylinder on that side of the piston not open to the sea there is
a passage through a valve or otherwise to the atmosphere to allow air to pass
inwards or outwards.
More than one piston and cylinder may be used, and each piston or cylinder may
be connected to one or more valves. The said cylinders are preferably provided
with stop valves whereby communication with the sea may be cut off, and the
pistons are usually arranged so as to actuate the desired valves through tension rods
or appliances.
It is desirable that the spring or springs should be placed in the engine room, so
that its or their tension may be readily adjusted; and that an indicator or indicators
should be attached to some moving part of the connections, so that the motion of
the governor may be observed.
DESCRIPTION OF THE DRAWINGS.
Fio 1 is a longitudinal section and Fio 2 a transverse section of a shin fitted

page_text: pressure is decreased or removed. The spring m may be variously placed, though it
is preferred in the position shown.
It will be obvious that as the pressure of water in b¹ varies, according to the
greater or less immersion of the stern of the ship, the piston a will be moved a
greater or less distance in the cylinder b against the resilience of the spring m, and
that the valves controlling the motion of the engines will be actuated.
Having now described and ascertained the nature of our said Invention in
such manner that others will be enabled to carry our improvements into effect we
claim,―
Governors arranged and operating substantially in the manner and for the 1
purposes set forth.
In witness whereof, I, the said Robert Waddell, have hereunto set my hand
and seal, this Fifth day of April, in the year of our Lord One thousand eight
hundred and eighty.
J. JOHNSON,
Patent Office,
Clayton Sq³.,
L'pool.
Witness.
ROBT. WADDELL. (L.S.)