IMPROVEMENTS IN VALVE APPARATUS FOR DISTRIBUTING STEAM IN PULSOMETERS AND OTHER DIRECT ACTING STEAM-PUMPS to be as follows:
Year: 1884

page_text: I, CARL EICHLER of No 9 Tichtegasse, Vienna I, in the Empire of Austria, Civil
Engineer and Director of Mines, do hereby declare the nature of my invention for
"IMPROVEMENTS IN VALVE APPARATUS FOR DISTRIBUTING STEAM IN PULSOMETERS
AND OTHER DIRECT ACTING STEAM-PUMPS to be as follows:-
"
In all apparatus for distributing steam heretofore employed in pulsometers and
other direct acting steam pumps, such as plates, balls, cones and the like, the point
of support or pivot was situated below the centre of gravity thereof, so that they
are in unstable equilibrium, and consequently they have to be moved from one
position to another by extraneous forces their motion being impeded by the steam
pressure, their own weight, and the vis-inertia of their mass.
My invention has for its object to obviate these defects and consists in effecting
the movement of the distributing device by means of the vis viva of a pendulum
by arranging the point of suspension above the centre of gravity of the device so
as to put it in à condition of stable equilibrium and to convert it into a freely
oscillating pendulum.
This may be effected either by mounting the device on pivots or on an axis
situated at any desired height above its centre of gravity in which case it may
either itself. constitute the pendulum, or the axis on which it oscillates may be
extended laterally and have an ordinary pendulum attached to it; or its point of
support or axis may be below its centre of gravity as heretofore, the axis having
attached to it a pendulum of such a weight that the centre of gravity of the
combined device will be transferred to a point situated below the axis.
Or again, the device may be suspended from a wire or thin blade, the upper end
of which is fixed to a convenient point in the upper part of the casing.
In those cases where an independent pendulum is combined with the distributing
device, the weight or "bob" thereof is, by preference made adjustable on its rod so
as to enable the period of oscillation of the distributing device to be regulated as
may be desired.

page_text: I, CHARLES EICHLER Civil Engineer and director of Mine, Vienna, 1 Tichtegasse 9,
Austria, do hereby declare the nature of my invention for "IMPROVEMENTS IN
VALVE APPARATUS FOR DISTRIBUTING STEAM IN PULSOMETERS AND OTHER DIRECT
ACTING STEAM PUMPS "and in what manner the same is to be performed to be
particularly described and ascertained in and by the following statement :-
In all apparatus for distributing steam heretofore employed in pulsometers and
other direct acting steam pumps, such as plates, balls cones and the like, the point
of support or pivot was situated below the centre of gravity thereof, so that they
are in unstable equilibrium, and consequently they have to be moved from one
position to another by extraneous forces, their motion being impeded by the steam
pressure, their own weight, and the vis-inertia of their mass.
My invention has for its object to obviate these defects and consists in effecting
the movement of the distributing device by means of the vis-viva of a pendulum
by arranging the point of suspension above the centre of gravity of the device so
as to put it in a condition of stable equilibrium, and to convert it into a freely
oscillating pendulum.
This may be effected either by mounting the device on pivots or on an axis
situated at and desired height above its centre of gravity, in which case it may
either itself alone constitute the pendulum or the axis on which it oscillates may
be extended laterally and have an ordinary pendulum attached to it or its point of
support or axis may be below its centre of gravity as heretofore, the axis having
attached to it a pendulum of such a weight that the centre of gravity of the
combined device will be transferred to a point situated below the axis.
Or again the device may be suspended from a wire or thin blade, the upper end
of which is fixed to a convenient point in the upper part of the casing.
In those cases where an independent pendulum is combined with the distributing
device, the weight or "bob" thereof is, by preference adjustable on its rod so as to
enable the period of oscillation of the distributing device to be regulated as may
be desired.
As the time of oscillation of a pendulum is independent of the length of arc
through which it travels, but dependent upon the length thereof, it will be seen
that for any given length of pendulum, corresponding to a desired rate of
alternation of the distributing valve, any desired amount of travel may be given
to the latter.
The accompanying drawings shew various arrangements of my above described
improved construction of distributing valve apparatus. In all the figures, O, B,
denote the inlet openings for the working steam, A A the valve casing, CC the
steam passages leading into the working chamber and P the distributing valve. -
Figs. 1 and 2 shew respectively a cross section and a longitudinal section of the
simplest form of the valve apparatus, in which it is constructed as a suspended
plate, oscillating on lateral knife edges. In fig. 3 the valve consists of a ball
suspended from a wire having its support on a bridge-piece at m; fig. 4 shews an

page_text: arrangement in which the plate valve shewn at fig. 2 is suspended from a spindle r
passing through a stuffing box b on the casing and carrying outside a pendulum Q
with adjustable bob, the rate of oscillation of which determines the movement of
the valve.
Figs 5 and 6 shew respectively a cross section and longitudinal section of an
arrangement in which the valve P has its point of support at bottom, as in the
existing arrangements, and is therefore in unstable equilibrium, but the spindle
on which the valve rocks carries a pendulum Q the length of which is such as to
bring the centre of gravity of the combined parts below the spindle, thus affording
the valve a stable equilibrium.
The pendulum may either be contained in a lateral extension D of the casing or
it may be situated outside the casing the spindler being made to pass through a
stuffing box b, as in the arrangement shewn in cross section, longitudinal section
and plan at figs. 7, 8 and 9.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I claim in respect of
distributing valve apparatus for pulsometers and other direct acting steam pumps
1, Arranging the valves in a suspended position, so as to operate as a pendulum
substantially as herein described.
2, In combination with a suspended valve the use of a pendulum for governing
its rate of motion, substantially as herein described.
3, In combination with an upright valve having its point of support at or near
the bottom, the use of a pendulum whereby the centre of gravity of the combined
parts is brought below the support of the valve, substantially as herein described.
4, The use of distributing valves having a pendulum combined there with whose
bob or weight is made adjustable so as to enable the rate of motion of the valve to
be variable, substantially as herein described.
Dated this 24th day of March 1885
ABEL & IMRAY,
Agents for the Applicant,
28, Southampton Buildings,
London, W.C.