Improvements in or connected with the Controlling of Winding- engines.
Year: 1896

page_text: Improvements in or connected with the Controlling of Winding-
engines.
I, HARRY BOLTON DAGLISH, of St. Helens Foundry, St. Helens, Lancashire,
Engineer, do hereby declare the nature of this Invention to be as follows:-
This Invention has reference to controlling the action of "winding-engines"
used in connection with collieries, mines, and under other like conditions, where
steam engines with automatic cut off gears are employed; and it-has more particu-
larly for its object, to improve the means of controlling such engines when it
is desired to stop them, say, at the top of the lift, or the end of the lowering action.
According to the present invention, in the act of stopping the lifting or lowering
action, as the case may be, at the end of the stroke, the usual method of reversing
the valve gear of the engine so that steam is supplied to the cylinders, so as to
eppose the movement of the piston and reverse same, is employed, while the action
of the governor is simultaneously stopped, or the governor is disconnected, so thar,
instead of the steam being cut off by the action of the governor during a portion
of the stroke of the piston as at present, it will be supplied during the whole stroke,
and thereby a more efficient control of the engine is obtained when desired.
In cases in which a catch or trip gear is employed in connection with a governor
to actuate the cut off valve automatically, and so cut off the steam, the-control is.
effected conveniently by disengaging or throwing out of gear the connection between
the governor proper and the catch or trip gear connected with the valve and in
the case of this connection being by a rod operating a lever which actuates the
trip or catch gear, the said rod may be disconnected from said lever by a mechanism
operated from the reversing gear of the engine, or separately by a separate gear;"
and the disconnecting and connecting may be by a gab on the governor rod, which,
when the rod is in the normal position, engages the lever, and when raised by a
cam or other suitable means, becomes disengaged 'therefrom, and the cut off
mechanism therefore thrown out of action.
In the different kinds and types of cut off or expansion gears which may be used
and in the different types of engines employed, the means or devices used for effect-
ing the throwing out of action of the cut off or expansion gear will vary or b
modified to suit such different conditions or requirements.
CHEESBROUGH & ROYSTON,
15 Water Street, Liverpool, Applicant's Patent Agen's.

page_text: Improvements in or connected with the Controlling of Winding-
engines.
I, HARRY BOLTON DAGLISH, of St. Helens Foundry, St. Helens, Lancashire,
Engineer, 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:-
This invention has reference, to controlling the action of "winding-engines"
used in connection with collieries, mines, and under other like conditions, where
steam engines with automatic cut off gears are employed; and it has more particu-
larly for its object, to improve the means of controllling such engines when it
is desired to stop them, say, at the top of the lift or the end of the lowering action.
According to the present invention, in the act of stopping the lifting or lowering
action of a winding-engine having an automatic cut off gear, and the cage or lift
worked by it, at the end of its travel or stroke, the valve gear of the engine is
reversed as usual, so that steam is so supplied to the cylinders as to oppose the
movement of the piston, and the automatic cut off mechanism is thrown out of
action, so that, instead of the steam being cut off by the action of the governor
during a portion of the stroke of the piston as at present, it will be supplied during
the whole stroke, and thereby a more efficient control of the engine is obtained
when desired.
In cases in which a catch or trip gear is employed in connection with a governor
to actuate the cut off valve automatically, and so cut off the steam, the control is
effected conveniently by disengaging or throwing out of gear the connection between
the governor proper and the catch or trip gear connected with the valve; and in
the case of this connection being by a rod operating a lever which actuates the
trip or catch gear, the said rod may be disconnected from said lever by a mechanism
operated from the reversing gear of the engine, or separately by a separate gear;
and the disconnecting and connecting may be by a gab on the governor rod, which,
when the rod is in the normal position, engages the lever, and when raised by a
cam or other suitable means, becomes disengaged therefrom, and the cut off
mechanism therefore thrown out of action.
In the drawings, a means for throwing the cut off mechanism out of action,
as above described, is illustrated.
Figures 1 and 2 shew, in one case, the mechanism or means arranged to suit an
engine in which the rods or parts between the cut off mechanism and the governor
are substantially in line; and, in the other, the arrangement in the case where the
cut off and governor rods, and the actuating rod worked from the valve reversing
shaft lead in different directions.
Referring to the drawings, a is the rod connecting the cut off mechanism (which,
it may be assumed, is of any suitable kind) with the mechanism or means for throw-
ing it out of and into action; b is a rod connected with and operated longitudinally
to and fro by the action of the Governor, as the rate of speed of the engine and
its speed vary, and having at its end a gab b¹; and c is a lever having its fulcrum
at.c and connected at its lower end to the end of the cut off gear rod a; while at
its upper end it is provided with a pin c, with which the gab 6 engages and dis-
engages. d is a lever by which the rod b is raised and lowered and its gab lifted
off and lowered onto the pin ; this lever having its fulcrum at d and operated
from the reversing shaft. e, (or other shaft) of the engine through the crank f
and rod a

page_text: In the two arrangements shewn in Figures 1 and 2, the rod b is normally pressed
down towards the gab pin by gravity, and by a spring h, respectively.
In action, norimally, the rod a, through which the automatic cut off mechanism
of the engine is operated from the governor, is connected up with the governor
by the rod gab 61 being engaged with the pin of the lever c, to the other end of
which the cut off gear rod a is connected; and in this condition, the automatic
cut-off would, as usual, be under the control and operation of the governor. When,
however, it is desired that the engine driver or attendant should have complete
control of the engine, at any point in its stroke or revolution, the control referred
to exercised by the governor is taken out of the governor's power and action; and
this is done by disconnecting the rod a from the rod b by raising the gab b off
the pin c, by moving the lever d from the shaft e, which, pressing on the under-
side of b, raises it and effects the disconnection referred to. When this has been
done, the engine is in the complete control of the engine driver or attendant, as
will be understood; and, therefore, when it is desired to stop the engine at the
end of the lift, or reverse it, the driver or attendant has complete power of doing
so, at any instant, that is, at any point of the stroke or revolution of the engine.
In the example given in the drawings, the shaft e may be assumed to be tho
ordinary reversing shaft of the winding engine; or, a shaft operated by a special
lever for throwing the automatic cut off mechanism into and out of action as
desired.
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed, it is to be stated that the invention
is not restricted to the mechanisms more particularly shewn in and set forth with
reference to the drawings, as the means for carrying it out may be modified in
different ways under different conditions of its application, and to meet the re-
quirements of special cases; and I declare that what is claimed in respect of the
herein described invention is:-
1. In winding engines having automatic cut-off mechanisms effecting or provid-
ing the control over the engines at times such as referred to, by a disconnecting
mechanism connected with the cut-off mechanisms, and operated by the engine man
or attendant, whereby, when required, the said cut-off mechanism can be thrown
out of action; for the purposes set forth.
2. The controlling mechanism of an automatic cut-off winding engine consisting
of connecting and disconnecting means, substantially as set forth with referenco
to and shewn in the drawings.
D
IL OL Ja of T..1.. 1007
CHEESBROUGH & ROYSTON,
15 Water Street, Liverpool, Applicant's Patent Agents.