Improvements in and relating to Valves for Flasks and other Receptacles used for Gas under Pressure.
Year: 1892

page_text: Date of Application, 13th Jan., 1892
Complete Specification Left, 28th Sept., 1892-Accepted, 29th Oct., 1892
PROVISIONAL SPECIFICATION.
Improvements in and relating to Valves for Flasks and other
Receptacles used for Gas under Pressure.
I, HUGO BAUM, of 10 Wilhelmstrasse, Berlin, S. W. in the Empire of Germany,
Director do hereby declare the nature of this invention to be as follows:-
My invention relates to stop valves for flasks and other receptacles used for gas
under pressure.
The stop valves heretofore employed for receptacles for gas, more especially
flasks for carbonic acid, occupy much space so that they require a large protecting
cap, they are nevertheless very liable to injury during the transport and unneces-
sarily increase the dead weight and the cost of transport.
In such valves the lateral neck piece provided with a nut and designed for the
outlet of the gas necessitates a very large diameter of the protecting cap, as more-
over the valve proper bears against the front extremity of the valve spindle the
latter is very considerably prolonged by the socket screwed on outside.
With the object of reducing the diameter of the protecting caps to a minimum
the improved valve constructed according to my said invention is arranged eccen-
trically with regard to the screw plug by which it is secured to the receptacle, so
that the neck piece protruding from the valve extends beyond the said screw plug.
approximately the same distance as the outer wall of the valve casing.
As compared with the concentric arrangement of the well known valves hereto-
fore employed I effect by this means a considerably diminution of the requisite
diameter of the protecting cap. To keep the valve casing as short as practicable
the valve proper is arranged to turn within a bore in the valve spindle and is
secured by means of a socket screwed into this bore from the interior. The exterior
screw-thread on the spindle for the socket of the valve proper in the arrangement
hitherto employed is dispensed with in my improved valve, use being made of au
interior screw thread, which does not affect the length of the spindle. Besides
obviating the prolongation of the spindle by the valve proper I shorten the spindle
by a cylindrical part which in the well-known arrangement hitherto used is
necessary for screwing on the cap.
A modification may be effected in the connection of the valve spindle with a
Whilst in the above
valve proper and in the arrangement of the stuffing box.
described stop valve a joint is made round the cylindrical part of the valve spindle,
I sometimes form the joint round a cylindrical part on the valve proper by means
of a stuffing box, a head provided on the said cylindrical part by a groove being
inserted into a corresponding recess or cavity in the shortened valve spindle. The
valve spindle is then only provided with an exterior thread for screwing the valve
proper up and down.
Valves which are reduced in the manner hereinbefore specified are lighter and
also less liable to injury without a protecting cap than those constructed as
heretofore.
Dated this 13th day of January 1892.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, Agents for the Applicant.

page_text: COMPLETE SPECIFICATION.
Improvements in and relating to Valves for Flasks and other
Receptacles used for Gas under Pressure.
I, HUGO BAUM, of 10 Wilhelmstrasse, Berlin, S. W. in the Empire of Germany,
Director, 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 :-
My invention relates to stop valves for flasks and other receptacles which are
used for gas under pressure.
The stop valves heretofore employed for receptacles for gas more especially
flasks for carbonic acid, occupy a large space so that they require a large pro-
tecting cap, they, are nevertheless liable to injury during the transport and
unnecessarily increase the weight and the cost of transport.
In the accompanying drawings the several figures of which are hereinafter
referred to, I have shown how my said invention may be conveniently and advan-
tageously carried into practice.
Referring to Figure 1 a is the body of the valve a¹ is a laterally projecting
branch-piece provided with a nut a² and designed for the outlet of the gas. This
form of valve necessitates a very large diameter of the protecting cap f and as
moreover the valve proper a³ bears against the front extremity of the valve
spindle the latter is very considerably prolonged by the socket c screwed on
outside.
With the object of reducing the diameter of the protecting caps to a minimum
the improved valve constructed according to my said invention is arranged eccen-
trically with respect to the screw plug g by which it is secured to the receptacle as
shown in Figures 2 and 3 so that the branch-piece a protruding laterally from the
valve extends beyond the said screw plug y approximately the same distance as the
outer wall of valve casing or body a.
As compared with the concentric arrangement of the well-known valves hereto-
fore employed as shown in Figure 1, I effect by this means a considerable
diminution of the requisite diameter of the protecting cap f. To keep the valve
casing as short as practicable the valve proper a³ Figure 2 is arranged to turn
within a hollow part d in the valve spindle and is secured by means of a socket c'
screwed into this hollow part from the interior. The exterior screw thread on the
spindle for the socket c Figure 1 of the valve proper in the arrangement hitherto
employed is dispensed with in my improved valve, use being made of an interior
screw thread, which does not affect the length of the spindle. Besides obviating
the prolongation of the spindle by the valve proper I shorten the spindle to the
extent of the cylindrical part e Figure 1 which in the well-known arrangement
hitherto used is necessary for screwing on the cap.
Figure 3 shows a modification in the connection of the valve spindle with the
valve proper and in the arrangement of the stuffing box. Whilst in the above
described stop valve shown in Figure 2 a joint is made round the cylindrical part
of the valve spindle 'I sometimes form the joint round a cylindrical part a* on the
valve proper by means of a stuffing box, a bead m provided on the said cylindrical
part a by a groove, being inserted into a corresponding recess or cavity k in the
shortened valve spindle b. The valve spindle is then only provided with an
exterior thread b6 for screwing the valve proper up and down.
Valves which are reduced in the manner herein before specified are lighter and
also less liable to injury without a protecting cap than those constructed as
heretofore.

page_text: 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 :-
First. For the purpose of reducing the diameter of the stop valves on receptacles
for containing gas under great pressure and of the protecting caps for the said
valves, the arrangement of the valve body (a) in an eccentric position relatively to
the screw plug (9) in such a manner that the gas outlet branch-piece a protruding
laterally from the valve body extends beyond the screw plug (g) approximately the
same distance as the outer wall a of the valve casing.
Second. For the purpose of reducing the length of the valve casing or body the
arrangement of the valve proper (a³ Figure 2) adapted to turn in the spindle in a
hollow part (d) of the said spindle which has an internal screw thread for screwing
in the safety socket (c¹) of the said valve.
Third. The arrangement of the cylindrical part (a*) of the valve proper in a
stuffing box so that the head (m) of the same takes into a cavity k of the shortened
valve spindle (b) which is provided only with an exterior screw-thread b.
Dated this 28th day of September 1809
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.