Improvements in pistate Relegrapnic Apparatus.
Year: 1899

page_text: Improvements in pistate Relegrapnic Apparatus.
I, HARRY JOHN BESWICK, of 125, Adelaide Road, Kensington, Liverpool, in
the County of Lancaster, Engineer, do hereby declare the nature of this inven-
tion to be as follows:-
-
This invention, has reference to tell-tale telegraphic communications, between
the bridge and engine-room of a steam ship, as regards the actions, actually
performed by the engine.
According to this invention, tell-tale telegraphic communications as to the
rate, and direction, in which the engine is running, is automatically shewn
by a specially constructed, indicating device, on the bridge or other desired
part of the ship.
A means of effecting the above consists of an air-pump, blower, or other
device, connected to the main-shaft or crank-shaft of the engine, by chain,
belt, or wheel-gearing, in such a manner, as to cause it to revolve with, and by
the action of the said shaft. The outlet, of this pump is connected to an
indicating instrument on the bridge or other desired part of the ship by
suitable piping.
This indicating instrument, consists of a cylinder, having a bore gradually
increasing in diameter from the centre, to either end, working in this cylinder,
is a piston, the diameter of which is the same as the centre of cylinder, a
pointer being connected to this piston in any suitable manner.
$
When the engine is running, say, ahead" the pump causes a current of
air to flow through the piping to the cylinder in indicating instrument, causing
the piston, therein to rise a sufficient distance to allow an amount of air, to
escape therefrom equivalent to that, generated by the pump.
If the engine is running say, "astern," the air is drawn, through the piping
in the opposite direction, causing the piston, to fall instead of rise, and thereby
move the pointer in the opposite direction also, and thus, every alteration of
speed, or direction, is automatically shewn..
Dated this 1st day of May 1899
Improvements in Ships' Tell-tale Telegraphic Apparatus.
I, HARRY JOHN BESWICK, of 125, Adelaide Road, Kensington, Liverpool, in
he County of Lancaster, Engineer, do hereby declare the nature of this inven-
[Price 8d.]

page_text: tion and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement:-
This invention has reference to tell-tale telegraphic communications, between
the bridge, and engine-room, of a steam-ship, as reguards the actions, actually
performed by the engines.
According to this invention, tell-tale telegraphic communications as to the
rate, and direction, in which the engine is running are automatically shewn,
by a specially constructed indicating instrument, or instruments, on the bridge,
or otlier desired part, or parts, of the ship, and where it will be seen by the
captain, or other in charge of the ship, who, will thereby know exactly what
speed the engine is running.
A means of effecting the above, consists, of connecting any suitable air-pump,
or blower, to the main-shaft, or crank-shaft, of the engine by chain, belt, or
wheel-gearing, in such a manner, as to cause it to be driven, by the action
of the said shaft. The outlet of this pump, is connected to the indicating
instrument, or instruments, on the bridge or other desired part, or parts of
the ship, by suitable piping.
The indicating instrument, is best described by aid of the accompanying
drawings, in which,
Figure 1, is a front elevation, partly in section,
Figure 2, a plan, partly in section,
Figure 3 shews the indicating instrument and punip connected as stated.
Referring to the drawings, A, is a cylinder, having a bore, gradually
increasing in diameter, from the centre to either end, B, is a piston, being a
fairly good fit for the centre of cylinder A; C, is a toothed quadrant, connected
to piston B, by rod D, and meshing with pinion E, which carries pointer F.
Mounted on pinion E, is a toothed wheel G, meshing with pinion H, which
carries a fly, J, (Fig. 2). I, is a lever, fulcrummed- at K, weighted at L, and
resting on pins M, & O, by which the pointer, is brought to a central position
when the engine is at rest.
In action, two notifications are automatically shewn, by the indicating
instrument; namely, the direction in which the engine is running, and also
the rate of speed.
If the engine is running, say, "ahead" the pump will cause a current of
air, to flow through the piping, to the indicating instrument at N, and cause
the piston B, to rise a sufficient distance, to allow an amount of air to escape
therefrom, equivalent, to that generated by the pump, according as to whether
the engine is running at "full," "half," or slow speed," the weight L, being
lifted by pin M. When the engine stops, the piston B, and pointer F, will
be brought to a central position, by the weight L, and arm I, resting on
pin M. When the engine is running, say, astern," the pump, will cause the
air to flow through the pipe, in the opposite direction, causing piston B, to
fall, and the arm I, to be lifted, by the pin O. -
The fly J, is intended to counteract, any unsteadiness in the current of air,
but may be dispensed with if a perfectly steady current is obtained.
The size and design of the case, may be altered as desired, and may be
mounted on a brass column, or otherwise.
The application of this invention, in the manner set forth with reference to
the drawings, is not restricted to marine engines, but may be applied to any
engine, as may be thought necessary.
Having now particularly described and ascertained the nature of this inven
tion and in what manner the same is to be performed I declare that what
I claim is:-
(1.) In ships tell-tale telegraphic apparatus, effecting substantially, as in
the manner described, the indications at the bridge, or other desired part, or
parts, of a steam-ship, the speed and direction, at which the engine is running,

page_text: by means of an indicating instrument, or instruments, connected by suitable
piping, to an air pump, or blower, driven by the main-shaft, or crank-shaft,
of the engine, by chain, belt, or wheel-gearing.
(2.) In apparatus, for indicating, as in the manner described, the speed and
direction, at which the engine is running; having a cylinder, the bore of which
gradually increases in diameter, from the centre to either end, and a piston,
suspended in the centre of the cylinder, in such a manner, that the piston,
would have to rise, or fall, into the larger diameter of the cylinder, before any
greater volume of air, could pass through the said cylinder; the rise and fall
of the piston, being indicated by a pointer, connected thereto, by suitable
gearing.
(3.) The mechanism, for indicating at the bridge or other desired part, or
parts, of a steam-ship, the speed and direction, at which the engine is running,
particularly as set forth with reference to, and shewn in the drawings.
Dated this 12th day of January 1000.
HARRY JOHN BESWICK.