IMPROVEMENTS IN VALVE APPARATUS AND PARTS CONNECTED THEREWITH FOR REGULATING THE PASSAGE TO PULSOMETER ENGINES
Year: 1882

page_text: LETTERS PATENT to Ernst Heinrich Greeven of 145 Cheapside in the City of
London, Manufacturer, for an invention of "IMPROVEMENTS IN VALVE
APPARATUS AND PARTS CONNECTED THEREWITH FOR REGULATING THE PASSAGE
TO PULSOMETER ENGINES." A communication from abroad by Georg Albert
Greeven of Brühl near Cologne in the German Empire, Engineer.
PROVISIONAL SPECIFICATION left by the said Ernst Heinrich Greeven
at the Office of the Commissioners of Patents on the 27th April 1882.
ERNST HEINRICH GREEVEN of 145 Cheapside in the City of London. Manu-
facturer. "IMPROVEMENTS IN VALVE APPARATUS AND PARTS CONNECTED THERE-
WITH FOR REGULATING THE PASSAGE TO PULSOMETER ENGINES." (A communication
from abroad by Georg Albert Greeven of Brühl near Cologne in the German
Empire Engineer.)
The steam passes in its way from the stop valve through a passage to the pump
chamber, this passage is closable by the valve controlling the flow of steam.
This valve consists of two parts one of which can move in or upon the other.
A small hole forming a passage connects the inner space of the parts of the valve
with the atmosphere allowing of the free passage of the air.
While the pulsometer is discharging the water, the moveable part of the valve
takes its lowest position on account of the pressure of the steam on its upper
surface, and allows the steam to pass freely into the pump chamber.
The water having been discharged a condensation takes place and its influence
reaches up to the stop valve the pressure on the moveable part of the valve being
lessened to a considerable extent this moveable part by the atmospheric pressure
from below is pressed upwards into position to effect the closing of the passage for
the steam to the pump chamber,

page_text: On account of the difference in the surface exposed to the steam in the steam
passage to the pump chamber, and on the other hand to the atmosphere inside the
steam valve the moveable part is enabled to oppose the pressure of the steam in
the steam passage to the pump chamber during the time the pump is sucking.
As soon as the rising water reaches the upper part of the chamber the pressure 5
on the valve from outside increases again and this pressure combined with the
pressure of the steam in the passage to the pump chamber presses the moveable
part downwards the steam can again enter the chamber and the discharging
begins.
Instead of the atmospheric pressure other means may be used for actuating the 1
valve viz. Steam, gas, water, or a spring or weight.
Two or any other number of pump chambers provided with this arrangement of
valve for regulating the action of the steam may be combined to work together.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Ernst Heinrich Greeven in the Great Seal Patent Office on the
18th October 1882.
66
ERNST HEINRICH GREEVEN of 145, Cheapside in the City of London Manu-
facturer. IMPROVEMENTS IN VALVE APPARATUS AND PARTS CONNECTED THEREWITIL
FOR REGULATING THE PASSAGE TO PULSOMETER ENGINES. A communication
from Abroad by Georg Albert Greeven of Brühl near Cologne in the German
Empire Engineer.)
The steam passes in its way from the stop valve through a passage to the pump
chamber, this passage is closable by the valve controlling the flow of steam.
This valve consists of two parts, one of which can move in or upon the other.
A small hole forming a passage connects the inner space of the parts of the valvo
with the atmosphere allowing of the free passage of the air.
While the pulsometer is discharging the water the moveable part of the valve
takes its lowest position on account of the pressure of the steam on its upper
surface and allows the steam to pass freely into the pump chamber.
The water having been discharged a condensation takes place and its influence
reaches up to the stop valve, the pressure on the moveable part of the valve being
lessened to a considerable extent. this moveable part by the atmospheric pressure
from below, is pressed upwards into position to effect the closing of the passage
for the steam to the pump chamber.
On account of the difference in the surface exposed to the steam in the steam
passage to the pump chamber, and on the other hand to the atmosphere inside the
steam valve, the moveable part is enabled to oppose the pressure of the steam in
the steam passage to the pump chamber during the time the pump is sucking.
As soon as the rising water reaches the upper part of the chamber the pressure
on the valve from outside increases again and this pressuro combined with the
pressure of the steam in the passage to the pump chamber presses the moveable
part downwards the steam can again enter the chamber and the discharging
begins,
Instead of the atmospheric pressure, other means may be used for actuating the
valve; viz, steam, gas, water, or a spring, or weight.
Two or other number of pump chambers provided with this arrangement of
valve for regulating the action of the steam may be combined to work together
But that the nature of the invention may be the better understood I will proceed
by the aid of the accompanying Drawings to describe the same more in detail.
DESCRIPTION OF THE DRAWINGS.
Figure 1 shows by a sectional front view an arrangement of valve operated by
atmospheric pressure and parts acting therewith-a shews a portion of the upper
part of a pump chamber of a pulsometer engine. b is a pipe or passage through
which steam passes to the pump chamber, such passage being regulated by
the valve c working within the chamber d. This valve c is formed as shewn in
two parts c. c. the upper or moveable part c' is capable of moving to and from
the orifice b', of the pipe b and of forming by contact of its upper part c³ with the
surface of the orifice b' a tight joint or stop to the flow of steam and this part
valve c' moves within the lower or fixed part and is guided in such movement
by that fixed part c². A small hole or passage a connects the inner chamber or
space formed by the inner surfaces of the parts of the valve c with the atmosphere

page_text: In place of the part c¹ of the valve c moving within the part c² the relation of
these parts to each other may be changed.
Figure 2 shews by another sectional view similar parts except that the operation
of the valve to effect the closing movement is effected by means of steam pressure
and o in this view indicates a pipe or passage for the supply of steam to the inner
space of the valve c, the other of the parts being lettered as in Figure 1 and their
operation being the same. The pipe o is provided with a tap or valve v for
regulating the supply of steam to the valve c A small hole or passage e through
any part of the valve c has the effect of lessening the pressure of the steam within
the valve c during the time the pump is sucking in consequence whereof the valve
goes down easier at the end of this time The valve c acts also with such a
passage e forming a direct communication between the inside of the valve and the
pump chamber or steam passage b without any further arrangements.
In place of operating the valve c for its closing movement by atmospheric
pressure, or steam, hydraulic pressure, or spring, or weight, pressure may be
employed.
The operation of the parts is as follows:-While the pulsometer is discharging
the water the moveable part c¹ of the valve c takes its lowest position on account
of the pressure of the steam on its upper surface and thereby allows the steam to
pass freely into the pump chamber a
The water having been discharged, a condensation takes place and its influence
--reaches up to the stop valve c,-the-pressure_on_the moveable part c¹ being lessened
to a considerable degree, this moveable-part cby the pressure of the air, steam,-or
other moving force acting within the parts c and c³ of this valve c to separate
them, is pressed upwards into position to effect the closing of the steam passage b
and to stop the supply of steam to the pump chamber. a.
-In-case steam is employed to actuate the valve c the supply of steam to this
valve can be regulated by means of the tap, or valve, in such a way that a
surplus of pressure within the valve over the pressure outside of it, causes the
part to move up and thereby to interrupt the flow of steam to the pump
chamber before the water-is-entirely discharged, therefore before the beginning of
the condensation of the steam in the pump chamber.
Having thus described the nature of the said invention I would have it
understood that what I claim is the Improvements in valve apparatus and parts
connected therewith for regulating the passage to pulsometer engines whereby the
passage of the steam to the pump chambers of pulsometer engines is regulated by
a valvo or valves formed in parts, and actuated by the difference of pressure
within and without such valve, or valves, substantially as herein described and
shewn by the Drawings.
In witness whereof I the said Ernst Heinrich Greeven have hereunto set
my hand and seal this Seventeenth day of October One thousand eight
hundred and nighty two
Witness
ALFRED G. BROOKES.
59 Chancery Lane
London.
E. H. GREEVEN. (L.S.)