Improvements in or connected with Incandescent Gas Lighting.
Year: 1898

page_text: PROVISIONAL SPECIFICATION.
Improvements in or connected with Incandescent Gas Lighting.
DANIEL SUGDEN, Can Cottage, Denholme, near the City of Bradford, Engineer,
do hereby declare the nature of this invention to be as follows:-
-:
That my invention contains certain improvements in the making of a connection
between the gas main & an incandescent lamp, dispensing with the dangerous
method of connecting with rubber tubeing, as used at present, with the anti-vibration
system. The manner in which I do this is as follows: I have a metal box, with
a pipe fixed in centre at the bottom. The box is connected to gas main from the
bottom with an iron pipe in the usual way. The pipe coming up in the centre
of the box is to conduct the gas to lamp, fitting loose inside the pipe which comes
down from the lamp. To prevent the inner pipe from vibrating against the outer
pipe, I fix a scroll spring to lugs at the top of box thro which the outer pipe
passes. To prevent the gas from escaping from the inner pipe thro the outer
pipe I partly fill the box with mercury. On the top of box is a larger chamber
to receive the mercury which may overflow by the pressure of gas.
Dated this 1st day of May 1898.
Improvements in or connected with Incandescent Gas Lighting.
DANIEL SUGDEN, Can Cottage, Denholme, near Bradford, County of Yorks,
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:-
That my invention contains certain improvements in the making of a connec-
tion, between the gas main & an incandescent lamp, dispensing with the
dangerous method of connecting with rubber tubeing, as used at present, with the
anti-vibration system. Shewn on the accompanying drawings Fig. 1, is a vertical
section shewing lamp connected to gas main. Fig. 2 is a sectional plan at A, B.
Fig. 3 is a sectional plan at C, D. Fig. 4 is a sectional plan at E, F. G. is a
metal box for bolding mercury screwed on to the gas main O, at the bottom of
metal box is fixed a vertical pipe J to conduct the gas from the main 0 to the
lamp R. On the bottom of lamp R is fixed a down pipe K, which fits loose over
the top & around the vertical pipe J. To prevent the down pipe K from jarring
against the vertical pine J, I fix a scroll spring M in the lugs N (with a lateral
motion), thro which the down pipe K passes.
The box G is then partly filled with mercury as shewn by the dots H, to prevent
D
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page_text: the gas from escaping thro' the pipes K & J, which pipes being surrounded by
mercury it cannot do. On the top of box G is a larger box or chamber I for
receiving the mercury which may overflow from box G by the pressure of gas.
Lis simply a washer fitting loosely round pipe K & over chamber I to prevent
the mercury from being spilt out of box G by a sudden knock or jar. is the
usual elbow &Q the gas tap for turning off.
Having now particularly described and ascertained the nature of my said in-
vention, & in what manner the same is to be performed, I declare that what I
claim is :-
1. A mercury box connection batman