An Improved Apparatus and Automatically Closing Bung for Drawing Off Liquids under Pressure.
Year: 1897

page_text: Date of Application, 9th Aug., 1897-Accepted, 18th Sept.,
1897
COMPLETE SPECIFICATION.
An Improved Apparatus and Automatically Closing Bung for
Drawing Off Liquids under Pressure.
I, FELIX MASSARD, Pump Manufacturer, of 26 Rue Coriolis, Paris, France,
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:-
The invention consists in an improved pump combined with an automatically
closing bung for drawing off liquids under pressure.
The apparatus is represented in the accompanying drawing, in which
Fig. 1 is an elevation, partly in section, on a reduced scale of a pump E, F,
provided with the accessories necessary for its operation.
Fig. 2 is a vertical section on a larger scale of the bung B.
Fig. 3 is a vertical section also on a larger scale of the closing cap Q, which is
fixed on the base of the bung B.
Fig. 4 finally is a vertical section also on a larger scale of the different parts of
the apparatus fitted together and mounted in the opening of a barrel T.
The complete apparatus consists of two principal parts, the useful operation
of which can only occur when same are united, and which are: The pressure
pump, and the automatically closing bung.
The pressure pump is composed of a tubular plunger E and of a tube carrier l'.
The tubular plunger is constructed similarly to all tubes of this nature hitherto
employed, and made for the same use. It is of variable length, having to be able
to descend to near the bottom of any receptacle to be drawn off. At its upper end
it is fitted with a cock K to regulate the flow of the liquid. Above this cock is
an opening I closed by a valve, to which opening when necessary can be screwed
the tubular pressure apparatus I hereinafter described, in order by this means to
enable, after the cock K is closed the parts of the liquid which may remain in the
upper conduits to be emptied. The tube carrier F which is itself tubular serves
first to place, introduce and fix the tubular plunger E in the orifice of the barrel 'T',
being screw-threaded at the bottom for this purpose, and it further serves the
purpose of a conduit for the introduction of the fluid pressure. For the latter
purpose, its interior bore is of greater diameter than the outer diameter of the
plunger E, so as to leave between them an annular space for the circulation of
the fluid pressure. This annular space, which is open at bottom, is closed at top
by means of an india rubber washer H, which expands to the required extent to
completely close such space, under the pressure of a screw cap G working in the
upper opening of the tube carrier F. This tube carrier F is provided with an
inlet apparatus I, for the passage of the fluid pressure, and with an outlet or
safety valve J to serve when necessary for any escape, in case of reactions which
may be produced in consequence of excess of pressure or excess of fermentation.
The inlet apparatus I contains a valve d kept closed by the pressure of a spiral
spring e. The escape apparatus J in its turn contains a safety valve f held closed
on its seat by the pressure of a spiral spring g. The latter valve and its spring are

page_text: enclosed in a screw cap h, which is pierced at the bottom with an opening in
which the stem of the said valve f. can slide freely with light friction, and round
its periphery with small openings i, i, for the escape of excess of pressure or of
excess of fermentation.
The automatically closing bung consists of a bush A which screws into the
orifice of the barrel T, being of conical form so as to be screwed in to any desired
depth, as the said orifice becomes enlarged by use. A bung B bored in the centre
screws into the bush A, and a metallic stopper (not shown in the drawing) in its
turn screws into the central bore of the bung B. This bung B at its lower end
terminates in a tubular extension P with a flange P. Upon this tubular extension
a closing cap Q of india rubber is forced, and is maintained in position thereon
by suitable means, such as by a metal collar or ring S fixed in any suitable
manner. This cap Qis formed with a slit R at the bottom, which is closed in the
position of rest.
The complete apparatus operates in the following manner:
The bung A, B, Q, is permanently fixed in the orifice of any receptacle, such
as a barrel as shown in the drawing, and is closed by the metallic stopper, so that
the barrel being securely closed may be forwarded at will to any distance. For
drawing off under pressure, the metallic stopper is removed and the tube carrier F
is screwed in its place in the bung. Then the tubular plunger E is slid into the
tube carrier and in passing downwards causes the slit R of the cap Q to open, and
it thus penetrates to the bottom of the receptacle. The screw cap G is then
tightened on to the india rubber washer H, and by the expansion of this washer
the top of the annular space existing between the tubular plunger said the tubo
carrier is closed. The apparatus is thus mounted and ready to operate. It only
remains to place the admission tube I in communication with any desired source
of pressure and at the same time to open the cock K in order to draw off the liquid.
If an excess of pressure or an excess of fermentation of the liquid should produce
aviolent reaction, the safety apparatus J would then come into action, by provid-
ing for this reaction an escape serving to avoid the accidents which are well known
to frequently occur in apparatus hitherto employed.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is:―
In a pressure pump provided with safety apparatus and an automatic bung for
drawing off liquid's under pressure.
1. The combination of a bung screwed into a conical bush which is itself
screwed into the orifice of any receptacle, with power to insert same to any desired
depth, such bung having a central bore closed at top by means of a metallic screw
stopper, and at bottom by means of an india, rubber cap provided with a slit
which remains closed when at rest.
2. A pressure pump composed of a tubular plunger and a tube carrier in which
the tubular plunger is slid, such tube carrier screwing into the central bore of a
bung, after the stopper has been removed from the latter, and being. provided with
admission apparatus for the entrance of the fluid, pressure, and with a safety
apparatus for the escape of any excess of pressure or of any excess of fermentation,
and the tubular plunger penetrating the receptacle by forcing the slit in the
india rubber closing cap to open.
3. The combination of the tubular plunger and of the tubo carrier by means
of which an annular space is provided between them for the circulation of the
fluid pressure, which passes into the receptacle to be drawn off, such annular space
being open at the bottom and closed at top by means of an india rubber washer
which expands under the pressure of a cap screwing into the top of the bore of
the tube carrier.
4. The opening provided, with a valve arranged at the top of the tubular
plunger, above the regulating cock, and formed to receive the pressure apparatus,

page_text: with the object of driving out by means of the latter the portions of the liquid
which may remain in the upper conduits,
The whole substantially as described and as illustrated in the accompanying
drawing.
ليم
1
1007
ALLISON BROS.,
Agents for the Applicant.