Improvements in Cocks for Gas Lamps or Lanterns.
Year: 1897

page_text: Date of Application, 31st July, 1897
Complete Specification Left, 10th May, 1898-Accepted, 11th June, 1898
PROVISIONAL SPECIFICATION.
Improvements in Cocks for Gas Lamps or Lanterns.
I, HERMANN WINKLER, of 97, Dresdener Strasse, Berlin, in the German Empire,
Engineer, do hereby declare the nature of this invention to be as follows:-
This invention relates to cocks for incandescent gas lanterns in suspended or
other position difficult of access, the object of the invention being to provide on the
one hand for adjusting the pilot flames of the burners, and on the other hand for
the lighting and extinguishing of single flames, or of clusters of flames in lanterns
containing several burners.
According to my invention the pilot flame of a burner is not extinguished means
being provided whereby when the supply of gas to the main burner is shut off the
pilot flame shall be relatively large and that when the burner is alight the pilot
flame shall be reduced to a minimum.
For this purpose the body or shell of the cock for controlling a single burner is
provided with a main through passage and a by-pass passage both of which are
controlled by the plug whilst a third passage, which for convenience I will term the
shunt passage, connects the supply side of the cock with the by-pass passage; the
plug of the cock is provided with a main passage and with a by-pass passage.
When the burner is alight the by-pass passage is closed by the plug the gas for
the pilot flame flowing through the shunt passage which is provided with a suitable
regulating screw; when the burner is not alight the gas flows through the by-pass
passage of the plug into the main passage thereof and thence into the by-pass
passage of the cock shell.
A set screw is arranged in the by-pass passage for
determining the size of the by-pass flame when the burner is extinguished, the
screw in the shunt passage determining the size of the flame when the burner is
alight.
A cock for use in conjunction with the clusters of burners has in the shell of
the cock a series of passages corresponding with the groups of burners in the cluster,
for instance, if there is a cluster of five arranged in groups of two and three the
cock would have three passages, one for the gas supply for two burners,
another for the gas supply of three burners and another for supplying
gas to both groups simultaneously, and the plug of the cock is provided
in this case with two passages, corresponding with the two groups of burners, and
with a groove for the passage of the gas, when both groups are to be alight simul-
taneously suitable by-pass passages are also provided.
With this arrangement it will be understood that the cock is capable of moving
in four different positions, in one of which all the lights are extinguished, in the
second of which two lights only are burning, in the third of which three lights only
are burning and in the fourth of which all the lights are burning.

page_text: I, HERMANN WINKLER, of 97; Dresdener Strasse, Berlin, in the German Empire,
Engineer, 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: -.
DENTON
This invention relates to cocks for incandescent gas lanterns in suspended or
other positions difficult of access, the object of the invention being to provide on the
one hand for adjusting the pilot flames of the burners, and on the other hand for
controlling the supply of gas to a cluster of burners divided into two parts or groups,
in such a manner that either part or group may be lighted or extinguished indepen-
dently of the other or both simultaneously.
According to the first part of my invention the pilot flames of the burners are
not extinguished, means being provided whereby when the supply of gas to the
main burners is shut off the pilot flames shall be relatively large and that when the
burners are alight the pilot flames shall be reduced to a minimum.
For this purpose the body or shell of the cock is provided with a main through
passage and a by-pass passage both of which are controlled by the plug whilst a
third passage, which for convenience I will term the shunt passage, connects the
supply side of the cock with the by-pass passage; the plug of the cock is provided
with a main passage and with a by-pass passage.
.
A cock for use in conjunction with a cluster of burners the two parts or groups
of which are to be used either independently or simultaneously has in the shell of
the cock a series of passages corresponding with the groups of burners in the
cluster, and the plug of the cock is provided in this case with two passages, and with
a groove. A suitable by-pass passage is also provided.
To enable my invention to be fully understood I will describe the same by
reference to the accompanying drawing, in which:-
of
Figure 1 is a longitudinal section of a cock adapted for controlling the supply
gas to a single burner or group of burners and for regulating the size of the pilot
flame or flames the plug being in the position which it occupies when the burners
are alight.
Figure 2 is a view of part of Figure 1 shewing the plug of the cock in the position
it occupies when the burners are extinguished.
Figure 3 is a secțional view of a cock adapted for controlling the supply of gas
to a cluster of burners; and,
Figures 4, 5 and 6 are sectional views shewing different positions of the plug of
the said cock under different conditions.
1
In the cock shewn in Figures 1 and 2 a is the shell having the main through
passage b and c is a branch having a by-pass passage through which the gas for
supplying the pilot flames of the burners passes. e is the shunt passage which
connects the supply side of the cock with the by-pass passage d. f is the plug of
the cock having the main passage band the by-pass passage formed in it as
shewn.
When the burner is alight, the cock being then in the position shewn in Figure 1,
the gas for supporting the pilot flame flows through the shunt passage e into the
by-pass passage da screw g serving to regulate the quantity of gas which flows to
the pilot flame and consequently also the size of the said flame. When the burner
is not alight, the plug being then in the, position shewn in Figure 2, the by-pass
passage in the plug is opposite the main through passage b whilst the passage
of the plug is also more or less in coincidence with the by-pass passage d; the

page_text: result of this arrangement is that the pilot flame then not only receives the supply
of gas which flows through the shunt passage e but also an additional supply which
Hows through the passage d' in the plug into the by-pass passage d so that the pilot
flame is increased in size. A set screw in the by-pass passage d serves for regulat-
ing the quantity of gas which flows to the pilot Hame when the burner is
extinguished.
The arrangement for controlling the by-pass hereinbefore described has the
special advantage that it admits of reducing the size of the pilot flame to a minimum
when the main burners are alight and of increasing the size of the said pilot flames
when the main burners are extinguished without the fear of completely extinguish-
ing the said pilot flames through the working of the plug or other influences.
It will be clearly understood that the set screw y only affects the size with which
the pilot flame burns when the burner is alight the size of the pilot flame when the
burner is extinguished being determined by the set screw h.
The cock for controlling the supply of gas to groups of a cluster and shewn in
Figure 3 has the shell a provided with a main gas inlet passage with the gas
supply passages 60 and i and with a branch passage id for supplying the pilot flames.
The plug of the cock is provided with the main passage 6', with the branch
passage and with the groove j. Assume now that out of a cluster of say five
burners a group of three is connected with the passage 6º and a group of two with
the passage i through separate pipes. When the plug of the cock is in the position
shewn in Figure 3 all the burners are extinguished, that is to say, the gas supply
is absolutely cut off except to the pilot lights through the passage d. If now the
cock is turned to the position shewn in Figure 4 the gas flows through the groove j
and the passage i so that two burners are lighted. If the plug is in the position
shewn in Figure 5 the gas will flow from the inlet passage b and the passages
and i so that the whole five burners will be lighted, whilst if the cock is in the
position shewn in Figure 6 the passage i will be closed so that the gas will flow
through the passage bo to the group of three burners.
Zo
It will thus be seen that the plug is capable of being moved to four different
positions, in one of which all the lights are extinguished, in another of which
two lights only are burning, in another of which three lights are burning and in
the fourth of which all the lights are burning.
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 cock for controlling the supply of gas to one or a group of burners and
Be arranged that the pilot light or lights are never extinguished but so that when
the supply of gas to the burners is cut off the pilot flames are larger than when the
burners are alight, substantially as described by reference to Figures 1 and 2 of
the drawing.
2. A cock for controlling the supply of gas to two separate burners or to two
groups of burners forming a cluster and so arranged that either group of burners
may be used independently of the other or that all the burners of the cluster may
be used simultaneously, substantially as described by reference to Figures 3 to 6 of
the accompanying drawings.
D
1
0th of Nov 1808
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.