IMPROVEMENTS IN MARINE ENGINE GOVERNORS
Year: 1884

page_text: I, ALEXANDER MELVILLE CLARK, of the firm of A. M. and Wm. Clark, of
53, Chancery Lane, in the County of Middlesex, Fellow of the Institute of
Patent Agents, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN MARINE ENGINE GOVERNORS " to be as follows:―
The object of this Invention is to provide governors for marine engines
constructed in such a manner as to shut off steam automatically when the vessel
rolls and pitches.
The Invention consists in a marine engine governor constructed with a shell, a
two part spherical valve seat placed in the shell, and provided with flanges to keep
it in place and with perforations for the passage of steam and the valve stem, a
spherical valve provided with perforations for the passage of steam and a weighted
valve stem to control the valve, and a stuffing box and flexible connecting base to
prevent the steam from escaping around the valve stem.
The two parts of the shell or case of the governor, have flanges at their outer
ends for convenience in connecting the said ends with the adjacent flanged ends of
a steam pipe and the adjacent ends of the parts of the shell are flared into spherical
or globular form, and are provided with flanges for convenience in securing the said
ends to each other. In the lower side of the shell there is an opening for the
passage of the weighted valve stem, said opening being provided with a fixed collar
having a flange at its outer end.
Within the shell are placed two semi-spherical plates forming the valve seat and
which have flanges to fit into rebated edges in the shell and an opening at their
lower side, corresponding with the opening in said shell. The outside diameter of
the sphere formed by these plates is less than the inside diameter of the shell to
form a space to receive steam.
In the centre of one of these halves of the valve geat is formed a large opening
and in the other part, are formed a number of small openings, which may be
circular, oval, square or of other desired shape. A hollow spherical valve is fitted
within the valve seat provided with openings corresponding to the openings in the
valve seat.

page_text: A stem is attached to or formed on the lower side of the valve and passes out
through the openings in the seat and shell and has a weight attached to its lower
end, of sufficient gravity to hold the stem in a vertical position and the valve
stationary and causing the seat to turn upon the valve as the vessel rocks and
pitches.
The movement of the seat upon the valve partly or wholly closes the openings
partly or wholly shutting off steam, and slowing or stopping the engine.
Upon the centre at one side of the valve is formed, or to it is attached, a pin
which enters a vertical groove, in the inner surface of the seat to prevent the said
valve from rotating upon the axis, of the stem, and thus getting out of place, and
preventing the perforations from registering properly.
The lower part of the stem passes through a stuffing box, to which is attached
the outer end of a short flexible hose. The other end of the hose is secured to the
flanged collar of the shell either directly or by means of a flanged collar interposed
between the said collar and the hose.
With this construction the escape of steam will be prevented, and the weighted
lower end of the stem allowed to have a free lateral movement.

page_text: I, ALEXANDER MELVILLE CLARK, of the firm of A. M. and Wm. Clark, of
53, Chancery Lane, in the County of Middlesex, Fellow of the Institute of
Patent Agents, 'do hereby declare the nature of the said Invention for
IMPROVEMENTS IN MARINE ENGINE GOVERNORS," and in what manner the same
is to be performed, to be particularly described and ascertained in and by the
following statement :-
"
:
The object of this Invention is to provide governors for marine engines
constructed in such a manner as to shut off steam automatically when the vessel
rolls and pitches.
The Invention consists in a marine engine governor constructed with a shell, a
two part spherical valve seat placed in the shell, and provided with flanges to keep
it in place and with perforations for the passage of steam and the valve stem, a
spherical valve provided with perforations for the passage of steam, and a weighted
valve stem to control the valve, and a stuffing box and flexible connecting base to
prevent the steam from escaping around the valve stem. The valve is held from
turning upon the axis of its stem by a pin attached to the said valve, and which
enters a vertical groove in the valve seat, as will be hereinafter fully described.
The Invention is illustrated in the accompanying Drawings forming a part of
this Specification, in which similar letters of reference indicate corresponding parts
in all the Figures.
Figure 1 is a sectional side elevation of the improvement. Figure 2 is an
elevation of one part of the same shewing the valve in place. Figure 3 is an
elevation of the other part, showing a part of the valve seat. A, B, represent the
two parts of the shell or case of the governor, which have flanges C, at their
outer ends for convenience in connecting the said ends with the adjacent flanged
ends D, of a steam pipe, and the adjacent ends of the parts of the shell A, B, are
flared into spherical or globular form, and are provided with flanges E, for
convenience in securing the said ends to each other. In the lower side of the
shell A, B, is formed an opening provided with a fixed collar F having a flange G
at its outer end.
Within the shell A, B, are placed two semi-spherical plates H, I, which have
flanges J around their edges to fit into the rebated edges of the parts of the said
shell A, B, and an opening in their lower side, corresponding with the opening in
the said shell A, B. The outside diameter of the sphere H, I, is less than the
inside diameter of the shell A, B, to form a space to receive steam.
In the centre of the part H, is formed a large opening K, and in the other
part I, are formed a number of small openings L, which may be circular, oval,
square, or of other desired shape. Within the sphere H, I, is fitted a sphere M
which is made hollow, and has an opening N, in one side corresponding with the
opening K, in the sphere H, I.-In the other side of the sphere M is formed a
number of openings O, corresponding in shape, number and size, with the
openings L
Upon the lower side of the sphere M is formed, or to it is rigidly attached, a
stem P, which passes out through the openings R, Q, in the sphere H, I, and
shell A, B, and has a weight S, attached to its lower end, of sufficient gravity to
hold the stem P, in a vertical position, and the sphere M, stationary, and causing
the sphere H, I, to turn upon the sphere M, as the vessel rocks and pitches.
The movement of the sphere H, I, upon the sphere M partly or wholly closes the
openings L, O, partly or wholly shutting off steam, and slowing or stopping the
engine.

page_text: Upon the centre of the perforated side of the sphere M, is formed, or to it is
attached, a pin T, which enters a vertical groove U, in the inner surface of the
sphere H, I, to prevent the said sphere M from rotating upon the axis of the
stem P, and thus getting out of place, and preventing the perforations L, O, from
registering properly.
The lower part of the stem P passes through a stuffing box V, to which is
attached the outer end of a short flexible hose W. The other end of the hose. W
is secured to the flanged collar F, G, either directly or by means of a flanged
collar X, Y, interposed between the said collar F, G, and hose W.
With this construction the escape of steam will be prevented, and the weighted
lower end of the stem P, allowed to have a free lateral movement.
Having now particularly described and ascertained the nature of the said
Invention, and in what manner the same is to be performed, I declare that what
I claim is
1. A marine engine governor constructed substantially as herein shown and
described, and consisting of the shell A, B, the two part spherical valve seat H, I,
having flanges J, and perforations K, L, R, the spherical valve M having
perforations N, O, and provided with a weighted valve stem P, and the stuffing
box V, and flexible connecting hose W, as set forth.
2. In a marine engine governor, the combination with the shell A, B, of the two
part spherical valve seat H, I, having flanges J, and perforations K, L, R, and the
spherical valve M, having perforations N, O, and weighted stem P, S, substantially
as herein shewn and described, whereby the admission of steam will be regulated
and stopped by the rocking and pitching of the vessel as set forth.
3. In a marine engine governor, the valve constructed substantially as herein
shewn and described, and consisting of the two part spherical seat H, I, having
flanges J, and perforations K, L, R, and the spherical valve M, having
perforations N, O, and weighted stem P, whereby the rocking and pitching of the
vessel will move the said valve to partly or fully shut off steam, as set forth.
4. In a marine engine governor, the combination with the valve seat H, I, having
vertical slot U, and the valve M, of the pin T, substantially as herein shewn and
described, whereby the said valve is kept from turning about the axis of its stem
and taking its perforations out of register with the perforations of the valve seat,
as set forth.
5. In a marine engine governor, the combination with the collar F of the
shell A, B, and the valve stem P of the stuffing box V, and the flexible hose W,
substantially as herein shown and described, whereby the escape of steam around
the oscillating valve stem, will be prevented as set forth.