Year: 1896

page_text: Date of Application, 18th Aug., 1896
Complete Specification Left, 18th May, 1897-Accepted, 3rd July, 1897
I, WII LIAM BEAL, of Hill Street, in the City of Birmingham, Lamp and Gas
Fittings Manufacturer, do hereby declare the nature of this Invention to be as
follows:-
This Invention has reference to those gas lamps in which the burnor is or the
burners are carried by one or more downwardly projecting tubes and contained
within a glass globe the top of which has usually been attached to and carried by
the underside of the shade which in some cases forms the bottom of an air-shaft
in the ceiling. As it is troublesome to remove the globe, a lamp of this kind is
nsnally made with a small bye-pass so that there is a small flame always burning,
but this bye-pass is objectionable as if the gas should be turned off at the meter
the flame will be extinguished and then if the gas should be turned on at the
meter without lighting the lamp the globe will become filled with gas which will
explode on the lamp being lighted. By my invention I am enabled to so carry
the globe that it can at any time be readily drawn down for the purpose of lighting
or extinguishing the lamp or for cleaning the globe and this without any possibility
of the gas escaping. Thus a bye-pass is not required and the risk of an explosion
therefrom is removed.
In carrying out this Invention the top of the globe is not carried by or attached
to the shade as heretofore, nor is there a large hole in the bottom of the globe,
but the bottom of the globe is fixed on to the lower part of a slide which passes
through a small hole in the globe which is held between washers on the slide.
This slide is or may be made in the form of two parallel and vertical tubes or
rods which are arranged to slide up or down in or on the two vertical tubes of the
lamp which carry the burner. At the bottom end of the slido below the globe
there is a ring or projection by which the globe and slide can be moved up and
down vertically for the purpose of lighting the lamp or cleaning the glass globe.
The gas burner with its tap is as aforesaid carried by the two vertical tubes which
support the slide of the globe and when the globe is drawn down the tap can
readily be reached to turn on or off the gas. In order to effectually prevent any
possibility of the gas escaping where the guide of the globe slides in the lower
end of the vertical tube, I prefer to make one of the vertical tubes a dummy, that
is to say, it is closed so that the gas only comes down the other vertical tube to
the burner and this last named tube is made with another smaller tube inside it
the top end of which is closed and which is fixed to the bottom of the gas tube
so that the gas passes down the annular space between this inner tube and tho
outer tube the slide of the globe moving up and down the inner tube, and thus
as there is no access for gas into the latter it is not necessary to have a gas tight
joint where the slide slides in it.
In order to secure the globe when pushed up into its highest position there is a
downwardly projecting piece formed on the lower part of the burner, which when
the globe is in its highest position projects through a holo in the said two washers

page_text: which secure the globe to the slide and is there secured by a set scrow or spring
catch or other like menus so as to be readily disconnected when the globe and its
slide are required to be drawn down.
Tho tap for lighting the burner may if desired he outside the lamp at the top of
the central pipe as in other gas lamps, and be arranged to be turned by a chain
cord or the like.
Instead of the vertical slide which carries the globe being arranged inside the
vertical tubes which carry the buruer as above described, the said slides may be
arranged to slide on the outside of those tubes.
My improvements are similarly applicable to lamps mado with two or more
burnere, and the said burner or burners may be carried by more than two tubes
or by a single tube similarly as above described.
J, WILLIAM BEAL, of Hill Street, in the Uity of Birmingham, Lamp and Gas
Fittings Manufacturer, 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 :-
This Invention has reference to those gas lamps in which the burner is or the
burners are carried by one or more downwardly projecting tubes and contained
within a glass globe the top of which has usually been attached to and carried by
the underside of the shade which in some cases forms the bottom of an air-shaft
in the ceiling. As it is troublesome to remove the globe, a lamp of this kind is
usually made with a small bye-pass so that there is a small flame always burning,
but this byo-pass is objectionable as if the gas should be turned off at the moter
tho flame will be extinguished and then if the gas should be turned on at the
meter without lighting the lamp the globe will become filled with gas which will
explode on the lamp being lighted. By my Invention I am enabled to so carry
the globe that it can at any time be readily drawn down for the purpose of lighting
or extinguishing the lamp or for cleaning the globe and this without any possibility
of the gas oscaping. Thus a bye-pass is not required and the risk of an explosion
thorefrom is removed. At the same time an ordinary bye-pass to give the usual
constantly burning small flame for lighting may be used if desired.
I will describe my Invention by referring to the accompanying drawings on
which Fig. 1 is a sectional side elevation of a gas lamp constructed in accordance
with this Invention; this view shews the lamp closed; Fig. 2 is a sectional side
elevation of the same lamp open; Fig. 3 is a sectional side elevation of a modified
form of the lamp shown by Figs. 1 and 2; Fig. 4 is a sectional sido elevation of
the lamp shewn by Fig. 8 open; Fig. 5 shows separately some parts of the lamp
shown by Figs. 3 and 4; Fig. 6 is a sectional side elevation of a further modification
of my improved lamp shewing the lamp open; and Fig. 7 shews the same parts
of the lamp as Fig. 6 closed.
The same letters of reference indicate the same or corresponding parts in all
the Figures of the drawings.
I will first describe the arrangement of my Invention shewn by Figs. 1 and 2.
In carrying out my Inveution the top a' of the globe A is not carried by ar

page_text: At
attached to the lamp shade B as heretofore, nor is there a large hole in the bottom
of the globe A, but the bottom a' of the globe A is fixed to the lower part b' of
a slide which passes through a small hole a in the bottom of the globe A which
latter is held on the lower part of the slide between the washers clc of the same.
In the example of my Invention shown by Figs. 1 and 2 tho alide is made in the
form of two parallel or vertical tubes or rods which are arranged to slide up
and 'down in the two vertical tubes d' d' of the lamp which carry the burnor e.
the bottom end 6 of the slide below the globe A there is a ring or projection 6* by.
which the globe and slido bbb can be moved up and down vortically for the
purpose of lighting the lamp or cleaning the glass globe A. The gas burner e with its
tap is as aforesaid carried by the vertical tubes d d which support the slide & b
and when the globe A is drawn down as shewn in Fig. 2 the tap f can readily be
reached to turn the gas on or off. In order to effectually prevent any possibility of the
gas escaping where the slide 6 6s slides in the lower end of the vertical tubes d' d²,
I prefer to make one of the vertical tubes say (see Fig. 1) a dummy, that is
to say, it is closed at d (see Fig. 1) so that tho gas from the usual down pipe g
only comes down the othor vertical tube d' and along the small cross tube d to the
burner e. The tube d' is made with another smaller tube h¹ inside it (see Fig. 1)
the top end A' of which is plugged up and which is also fixed at the bottom to the
bottom of the gas tube d so that the gas passes from the pipe g down the annular
space between this inner tube A and the outer tube d', the sliding tube or rod b' of
the globe moving up and down the inner tube h¹ and thus as thero is no access for
the gas into the inner tabe h¹ it is not necessary to have a gas tight joint at d
where the slide & slides in it.
In order to secure the globe A when pushed up into its highest position as shown
in Fig. 1, there is a downwardly projecting piece i formed with the lower part of
the burner e which when the globe A is in its highest position shewn by Fig. 1;
projects through a hole (not shewn) in the two washers do and through the hole a
in the globe A and is there secured by a set screw (or by a spring catch or other
like means) passing through the projecting piece i into the lower part b' of the slide
so as to be readily disconnected when the globe A and its slide are required to be
drawn down.
Instead of employing the small tap within the globe for lighting the burner aé
in Figs. 1 and 2 it will be evident that an ordinary tap such as E or any other tap
may if desired be employed outside the lamp at the top of the central pipe g as in
othor gas lamps of this class and be arranged to be turned by a chain cord or the
like as will readily be, understood.
My improvements are similarly applicable to lamps made with two or more
burners and tho said burners may be carried by more than two tubes or by a single
tabe similarly as above described. In the example of my Invention shown by
Figs. 3, 4 and 5 which I will now describe the lamp is provided with two burners e¹³,
which are carried by a central tube and they branch out of the sides at the
lower part of the same as shown in Fig 3. In this case the slide which carries the
globe A consists of a single tube marked 6 which slides up and down the inner
tube which, as in the arrangement shown by Figs. 1 and 2, is fixed inside the
tube d' and is plugged at its top end so that the gas from the central tube g
passes down the annular space between the inner tube h' and the outer tube d' and
along the side tubes do d' to the burners ee. This lamp shewn by Figs. 3 and 4
is arranged with a bye-pass k which is carried down outside the top d' to the pilot
jets but it will be understood that this bye-pass forms no part of this Invention
and that the same may be dispensed with if desired.
Instead of the vertical slide which carries the globe A being arranged inside the
vertical tubes d¹ d' as in Figs 1 and 2, or inside the vertical tube das in Figs. 3
and 4, the said slide may be arranged to slide outside this tube or these tubes as
shewn for instance by Figu. 6 and 7 where the vertical gas tube g is carried down
below the burners e¹ and these are fixed to arms g' g fixed to the tube g. The
slide which carries the globe A is made tubular and marked band of a size to slide

page_text: outside the tube g this tube b' being slotted at each side b° 6' for the arms g¹ g³ of
the burner eles to pass through and allow of the globe being slided up and down.
The bottom of the tube b which carries the washers c' c for holding the globe A
has a downwardly projecting part which when the globe A is raised to its highest
position as shown in Fig. 7 corresponds with the lower plugged up end g³ of the 6
tube g so that a set screw j can be passed through a hole in the projecting piece!
into a corresponding hole in the lower end g³ of the tube g and thus hold the globe
in its highest position.
In order to prevent the globe A from being drawn down too far a suitable stop
is provided such for instance as the collar m in Figs. 1, 4 and 5 fixed on the top of 1
the vertical slide 6 which collar will not pass through the bottom collar ds which is
fixed to the bottom of the tube d'. In the arrangment shewn by Figs. 6 and 7
the top of the slots 66 67 coming into contact with the pipes g' g' form the stop to
prevent the globe being drawn down too far.
Having now particularly described and ascertained the nature of my said 1
Invention, and in what manner the same is to be performed, I declare that what I
claim is :-
1. In a gas lamp of the kind herein referred to, carrying the open topped globe
by a vertical slide arranged within the globe and fixed to the bottom of the same
and made to slide up and down the tube or tubes which supply the gas to the 2
burner or burners within the globe, substantially as described.
2. In a gas lamp of the kind herein referred to, the combination with the open
topped globe A, of the means for carrying the same to permit of the globe being
slided up and down and for supplying the gas from the vertical pipe g to the
burner or burners and the means for securing the globe in its highest position all sub- 2
stantially as herein described with reference to Figs. 1 and 2 of the accompanying
drawings.
3. In a gas lamp of the kind herein referred to, the combination with the
open top globe A, of the means for carrying the same to permit of the globe being
slided up and down and for supplying the gas from the vertical pipe g to the burner 3
or burners and the means for securing the globo in its highest position, all
substantially as herein described with reference to Figs. 3, 4 and 5 of the
accompanying drawings.
4. In a gas lamp of the kind herein referred to, the combination with the open
top globe A, of the means for carrying the same to permit of the globe being slided 3
up and down the vertical pipe g and for securing the globe in its highest position,
all substantially as herein described with reference to Figs. 6 and 7 of the
accompanying drawings.
Dated thin 17th daw of Now 100%