A Combined Fluid-pressure Regulator and Stop-valve.
Year: 1889

page_text: Date of Application, 11th July, 1889
Complete Specification Left, 2nd Apr., 1890-Accepted, 3rd May, 1890
PROVISIONAL SPECIFICATION.
A Combined Fluid-pressure Regulator and Stop-valve.
I, GUSTAV JACOBY, of the firm of Nachtigall and Jacoby, Manufacturers, of Leipzig,
Germany, do hereby declare the nature of this invention to be as follows
Regulating valves, as usually made, require the use of a separate valve for
completely closing the passage of steam or other liquid.
In order to combine the functions of both, the improved valve is constructed as
follows
To the lower end of the vertical valve spindle, is secured a tubular body provided...
with a pair of annular flanges, one of which is situated above, and the other below,
the high pressure chamber. When the valve is open, a portion of the fluid flows
from the high pressure chamber past the upper flange into the low pressure
chamber situated above the high pressure chamber, while another portion flows from
the high pressure chamber past the lower flange into an intermediate chamber, then
enters the tubular valve from below, passes upward through the same, and escapes
through lateral openings into the high pressure chamber. To regulate the position
of the valve, the upper part of the valve spindle is provided with a piston exposed
at its lower face to the pressure in the low pressure chamber, and an adjustable
counter-weight.acting on a horizontal balance lever.
Above the lateral fluid passages, the tubular valve body has a conical flange
which acts as a stop-valve to prevent the passage of fluid from the high into the
low pressure chamber, when the tubular flange is pressed down on its seat. For
this purpose, the upper end of the valve spindle is provided with a screw thread and
hand-wheel.
03.
FAIRFAX & WETTER,
433, Strand, London, Agents for the Applicant.
COMPLETE SPECIFICATION.
A Combined Fluid-pressure Regulator and Stop-valve.
I, GUSTAV JACOBY, of the firm of Nachtigall and Jacoby, Manufacturers, of Leipzig,
Germany, 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 :-
Regulating valves, as usually made, require the use of a separate valve for
completely closing the passage of steam or other liquid.
The present invention has for its object, to construct a valve which unites the two
functions in a simple manner.
As shown by the annexed drawing, which represents a valve embodying my
invention, the apparatus chiefly comprises an equilibrated tubular double piston valve c
and a conical stop-valve g.
The double piston valve allows the steam (or other fluid) to pass from the inlet k
to the outlet d in two ways, namely in a direct manner through the upper passage,
and at the same time indirectly by passing first downward into the closed inter-
mediate chamber e, and then through the interior of the valve to the lateral
perforations or outlets f. Above these outlets the double piston-valve c is provided
with the conical stop-valve g, connected with a regulating or guide spindle or piston i.
If the spindle i is screwed down by means of the hand wheel h, the valve g is pressed
on its seat and both passages are closed. The spindle i and the screw spindle of the
hand-wheel h are held in the cover of the valve-box, as shown.

page_text: For setting the regulator in action, the hand wheel h, the screw spindle of which
simply presses on the top of the spindle i, is screwed up, whereupon the steam
situated underneath the cone g lifts the cone g together with the double piston c and
sets the stop-valve out of action.
The regulation takes place in the well-known manner by the up and down-motion
of the loaded regulating spindle connected with a lever. carrying an adjustable
balance weight...
According to the pressure of the fluid at d, the double piston is raised or lowered,
and thereby the area of the steam passage changed.
Having now particularly described and ascertained. the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what. I.
claim is:-.
1. A combined pressure regulator and stop-valve, comprising in its construction
an equilibrated hollow double piston c provided with outlets f, and cone g, and a
balanced regulating spindle piston i, the whole being constructed and adapted to.
operate substantially as described.
2. The combination of a valve box having an inlet or high-pressure space k, an
outlet or low-pressure space d, an intermediate chamber e, a pair of valve openings,
and a valve seat, with a hollow double piston c having a cone 9 and outlets f, and a
cover or lid containing a balanced regulating or guide spindle or piston i and a screw.
provided with a hand wheel h, substantially as described.
Dated thin and dow of Anil 1800
GUSTAV JACOBY..
By Fairfax & Wetter,
433, Strand, London, Agents..