AN IMPROVEMENT IN GOVERNORS FOR MARINE STEAM ENGINES
Year: 1877

page_text: PROVISIONAL SPECIFICATION left by Henry Edward Newton at the Office
of the Commissioners of Patents on the 1st February 1877. A communi-
cation fiom abroad by George Steele, of the City and State of New York,
United States of America
HENRY EDWARD NEWTON, of the Office for Patents, 66, Chancery Lane, in the
County of Middlesex, Civil Engineer "AN IMPROVEMENT IN GOVERNORS FOR
MARINE STEAM ENGINES" A communication fiom abroad by George Steele, of
the City and State of, New York, United States of America
This Invention consists in the combination of a cylinder, say A, and a piston
contained theicin and actuated by the pressure of water in which the ship floats
on its under side, and by atmospheric pressure on its upper side, with a valve or
valves connected with and operated by said piston, which valves through suitable
pipes admit steam, water, or air into, and permit steam, water, or an, to exhaust
from one end of a second cylinder, say A¹, the other end of which is open to the
atmosphere, and a piston which acts through suitable mechanism connected with
the throttle valve in the induction pipe of the engine to close the said throttle
valve, which, when not so closed, is opened by a weighted level connected
therewith
The object of the Invention being to shut off the steam when the propeller
18 1aised by the motion of the vessel out of the water
In carrying out the Invention a cylinder A containing a piston is so placed, say
in the stern of the vessel, that the piston when the vessel is on an even keel may
rest on the surface of the water The 1od of this piston is connected by means of
suitable cianks, levers, and 1ods, with a pair of puppet valves, say I and I³, which
are connected by a pipe with the lower end of cylinder B, which also contains a
piston, the rod of which is connected with a weighted lever attached to the throttle
valve of the engine
The puppet valves, it is preferred, should be of the kind known as angle valves,
but other kinds may be used provided they are so arranged that when one is opened
the other shall be closed tightly, or a single valve of any kind may be used, such
valve being constructed to cover two ports in such manner that when one port 18
opened the other shall be simultaneously closed.

page_text: One of the puppet valves is connected by a pipe with the boiler, and the other is
connected with the condenser Each of the cylinders is provided with openings
in the cover to admit of atmospheric pressure on to the top of then pistons
The action of the apparatus may be described as follows -Suppose that by the
motion of the vessel the stern, for example, is raised out of the water the piston
in the cylinder A will be forced down by the atmospheric pressure, and by means
of the cranks, levers, and rods, will open valve, say, 1', for the admission of steam
into cylinder A¹, by which means the piston in this cylinder will be forced up, and
through the weighted level connected therewith, the throttle valve will be closed
and steam shut off
When the stein of the vessel descends the piston in the cylinder A will be forced
up by the water and the action of the apparatus will be reversed, valve I being
opened, by which means the steam in cylinder A¹ will be exhausted and passed into
the condenser, and by means of atmospheric pressure, assisted by the weighted
level, the piston will be forced down and the throttle valve opened, thus it will
be seen that the motion of the vessel will regulate the admission of steam to
the engine, and so prevent the racing of the propeller.
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