Improvements in Adjusting-taps for Gas Burners.
Year: 1898

page_text: Date of Application, 5th Nov., 1898-Accepted, 23rd Dec., 1898.
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COMPLETE SPECIFICATION.
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Improvements in Adjusting-taps for Gas Burners.
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I, CARL FRIEDRICH GAEBERT, of 22 and 22, Sophienstrasse, Berlin, in the
Empire of Germany, Manufacturer, do hereby declare the nature of this inven-
tion and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement:-
This invention relates to a tap mechanism capable of being adjusted for gas
burners, more particularly lamps with incandescent burners in, which a by-pass
for a pilot or lighting, flame and also a pipe leading to the main flame is subject
to control by means of an arm which operates a tap. The devices hitherto
employed for this object have either, a mechanism for closing the space, consist-
ing of a balance lever on a horizontal cock axis frequently connected with
chains which are inconvenient to use, or on the other hand have ugly "bevel
gearing for the purpose of operating the tap centrally, whilst in the case of an
axial burner tap the adjustment of the tap took place with a simultaneously
turning of the mantle, thus exposing the latter to shaking. Even the arrangement
of the by-pass pipe at the side has been found too susceptible in practical
working.
In the improved device for adjusting the tap in which a cock case or cock
bush is revoluble over a fixed cock body concentric to the gas conveying pipe,
all the parts projecting into the interior of the lamp are avoided and the lighting
and extinguishing of the main flame is operated without turning the incandescent
mantle and with an alternate control of the igniting and the illuminating flame.
In the accompanying drawings.
Figure 1 is a vertical section of the tap device which is arranged as a direct
continuation of the upright gas supply pipe and carries a burner at top;
Figure 2 is a cross section on the line A-B of Figure 1;
Figure 3 a cross section on the line C-D of Figure 1;
Figures 4 and 5 are developed representations of the outer surface of the cock
body and of the inner surface of the cock casing; whilst
Figure 6 is a cross section on the line E-F of Figure 1.
The gas supply pipe a is permanently connected in the ordinary manner with
the lamp carrier. On this pipe a there is directly and axially arranged a cock
body having borings cc for the igniting flame and borings dd for the
illuminating flames. The cock body is prolonged upwards again to the igniting
pipe f and into the burner casing . Round these fixed parts a cock casing his
revolubly arranged so that it may be turned from the outside by means of a
pipe or sleeve and lever k. The cock casingh has two recesses or gas passages m
and n respectively for the illuminating and igniting flames, which recesses coin-
cide with the borings c c and d in the development diagrams of the fixed
cock body (Figure 4) and the revoluble cock casing (Figure 5). In the repre-
sentations shown, the igniting flame is assumed to be burning as the passages c c
are connected in the field 2-3 of the development (Figures 4 and 5) by a recess n.
If the cock casing, Figure 5, be turned in the direction of the arrow, the recess m
comes out of the field 5-0 to the field 4—5 and the illuminating flame is ignited

page_text: whilst the igniting flame still remains burning through the connection which
is now in the field 1-2. On a further rotation in the direction indicated by
the arrow, the igniting flame is extinguished whilst the main flame burns further.
Exactly the reverse process takes place on the cock casing being turned back.
The consequence of such alternations of position and the method of forming the
cock casing therefor is of itself known, whilst the arrangement for operating by
means of a pipe i concentric to the gas lighting pipe a and surrounding the cock
casing in the combination herein before described is believed to be new.
This method of operating may also be employed in the use of alternating
movable cocks of other form.
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:
A cock device for gas burners, more particularly for use in lamps, charac-
terised by a vertical gas supply pipe (a) being rigidly mounted on a support, and
carrying at its upper end a burner with an incandescent mantle, an internal
igniting pipe, and an axially arranged cock body (b) provided with borings or
slots (e c, d d¹) respectively for the igniting flame and the illuminating flame,
whilst a cock casing (h) provided with corresponding slots or recesses is revolubly
arranged around said cock body and continued downwards into a pipe or sleeve (i)
concentrically enclosing the gas supply pipe (a) which pipe or sleeve (i) may be
turned from the outside by means of an adjusting lever, substantially as herein-
before described.
Dated this 4th day of Navambion 1000
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool, Agents for the Applicant.