An Automatic Device for Preventing Racing of Marine Engines.
Year: 1899

page_text: Date of Application, 23rd May, 1899
Complete Specification Left, 20th Feb., 1900-Accepted, 24th Mar., 1900
PROVISIONAL SPECIFICATION.
An Automatic Device for Preventing Racing of Marine Engines.
We, PETER BOWIE, of 28, Princes Street, Govan, Engine Fitter, and WILLIAM
GUILFORD, of 522, St. Vincent Street, Glasgow, Iron Turner, do hereby declare
the nature of this invention to be as follows:-
-
The invention consists in suspending a weighted lever from the top of the
cylinder or in such other position as shall ensure it falling into the true vertical
plane when the ship is sailing with even keel.
The one end of a jointed lever is disposed in such a manner that it is all but
in contact with the lower end of the weighted lever, the other end of the jointed
lever is fixed to the throttle valve of the engine, and in its normal position freely
permits of the throttle valve being opened for admission of steam to the engine.
Any undue tendency to pitch of the ship will cause the weighted lever to oscillate
from its point of suspension, the weighted end of the lever, due to such oscillation
will come into contact with the lever and so act upon the throttle valve as to cut
off the whole or part of the steam during the period when the racing of the engine
is likely to occur. A spring is so arranged at the end of the jointed lever which
allows of the throttle valve being immediately opened, when the pressure of the
weighted lever is removed. A pair of guide rods prevent lateral strain to the
weighted lever in case of rolling of the ship.
Adjustable screw stops are also provided to limit the range of oscillation of the
weighted lever.
י
F AL 1900
BOTTOMLEY & LIDDLE,
154, St. Vincent Street, Glasgow,
Applicants' Patent Agents.
An Automatic Device for Preventing Racing of Marine Engines.
We, PETER BOWIE, of 28, Princes Street, Govan, Engine Fitter, and WILLIAM
GUILFORD, of 522, St. Vincent Street, Glasgow, Iron Turner, do hereby declare
the nature of this invention and in what manner the same is to be performed to
be particularly described and ascertained in and by the following statement:-
In order that our invention may be properly understood and readily carried
into effect, we have hereunto appended, one sheet of drawings, of which,
Figure 1 is a front elevation of a marine engine with our invention applied

page_text: Figure 2 is a similar view also of a marine engine illustrating a modification
as hereinafter referred to.
The invention consists in suspending a weighted lever A, pivoted at a from the
top of the cylinder B, from the deck ceiling, or in such other position as shall
ensure it falling into the true vertical plane when the ship is sailing with even
keel and remain plumb during any longitudinal movement of the ship.
The one end of a jointed lever is disposed in such a manner that it is all but
in contact with the lower end of the weighted lever A, the other end of the jointed
lever is fixed to the throttle valve D of the engine by means of the short lever C¹,
and in its normal position freely permits of the throttle valve D being opened for
admission of steam to the engine. Any undue tendency to pitch of the ship will
cause the weighted lever A to oscillate from its point of suspension, the weighted
end of the lever, due to such oscillation will come into contact with the lever C
and so act upon the throttle valve 1) as to cut off the whole or part of the steam
during the period when the racing of the engine is likely to occur: A spring E
is so arranged at the end of the jointed lever C, which allows of the throttle valve
being immediately opened, when the pressure of the weighted- lever is removed.
A pair of guide rods F prevent lateral strain to the weighted lever A in case of
rolling of the ship.
Adjustable screw stops G are also provided to limit the range of oscillation of
the weighted lever:
In lieu of suspending the weighted lever A in the manner described with
reference to Figure 1, it is hung from the projecting spindle of the throttle valve D.
The position shewn in the drawing represents the throttle in its normal working.
position with the steam communicating with the cylinders and the weighted lever
resting against a spring cushion shown to the right of the figure. Any appre-
ciable movement of the weighted lever A from the vertical would be communicated.
to the throttle and so control the admission of steam.
Having now particularly described and ascertained the nature of our said-
invention and in what manner the same is to be performed, we declare that what
we claim is:-
The arrangement by which a weighted lever, suspended in such a manner as
shall ensure the proper engagement with a long jointed lever when tilted from
the perpendicular position by the fore and aft movement of the ship, is made to
operate the throttle valve and cut off the steam in order to prevent racing of the
engines, substantially as described and illustrated on the accompanying drawings.
Dated this 19th day of February 1900
BOTTOMLEY & LIDDLE.
154, St. Vincent Street, Glasgow,
Applicants' Patent Agents.