Improvements in Tubular Lanterns.
Year: 1889

page_text: Date of Application 31st Jan., 1889-Accepted, 2nd Mar. 1889
COMPLETE SPECIFICATION.
Improvements in Tubular Lanterns.
I, WILLIAM REDMAN, of Cleveland Street, Wolverhampton, in the County of
Stafford, Lamp Manufacturer, do hereby declare the nature of this invention and
in what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement, reference being had to the accompanying
drawings and the letters of reference marked thereon (that is to say) :-
My invention relates chiefly to that class of tubular lanterns in which the globe is
hinged back for convenience of lighting and trimming etc. and consists firstly in means
for holding the globe to the perforated disc when such globe is hinged back,
secondly to improved means for preventing the ingress of atmospheric air into the
air chamber when the cone of the burner is hinged back with the perforated disc
carrying the globe, thirdly to means for keeping such globe when hinged back in a
horizontal or approximately horizontal position, and fourthly in so arranging the
hinge of the perforated disc that when the globe and disc are hinged back the
maximum amount of room is obtained for trimming and lighting etc. My invention
relates also to improvements in that class of globe guards which are hinged to the
tubes of the class of lanterns mentioned in the title.
The
My invention will be readily understood on reference to the accompanying drawings
of which figure 1 sheet 1 is a front elevation of my lantern, Figure 2 is a section
taken on line of figure 1, Figure 3 is a view looking in the direction of the
arrow a figure 2, and Figure 4 is a section taken on line y y of figure 2.
same letters of reference occurring throughout the several views indicate corresponding
parts. I have removed the globe from figure 2 for convenience of illustration. A is
the well or reservoir of the lantern and B B the tubes thereof. Cis the perforated
dise upon which the globe is carried and D is a wire bent to the shape shewn
fastened to such disc in any convenient manner which catches against the inside
of the globe and thus holds it in position when hinged back. This method of
holding the globe allows the ordinary globe common in the trade to be used. Now
for the purpose of facilitating the lighting and trimming of the wick I secure the
cone of the burner to the disc C and when such disc with the globe thereon is hinged
back the cone is removed from the burner as shewn at figure 3. E is the cone of

page_text: the burner fastened to the disc in any convenient manner. The cone is shaped as
shewn and the lower part thereof fits around the air chamber F (see specially figure 4)
a is a wire fastened to the lower part of the cone in any convenient manner and
hinged to the air chamber F as shewn. It will thus be seen that the hinge being on
a level or thereabouts with the lower edge of the cone it allows such lower edge to
fit tightly around the top of the air chamber F and this prevents the ingress of atmos-
pheric air as will be readily understood.
For the purpose of keeping the globe in a horizontal or approximately borizontal
position when hinged back I place a stop on the well or reservoir A in position so
that when the disc C is hinged back the underside of the flange thereof catches
against such stop as shewn at figure 3, and this prevents the globe from falling out of
the catch D and also reduces the risk of the globe being broken because when the
globe is allowed to hinge back an indefinite amount there is more danger of it catching
against objects near. G is a spring clip of the usual description placed in the position
shewn and this keeps the globe from moving or shaking when closed.
I place the hinge in the position shewn so that when the globe is hinged back it
allows the maximum amount of room and thus facilitates the lighting and trimming
of the wick as will be readily understood. The globe is shewn to hinge over toward
the right on the drawing but it is evident that it may hinge over toward the left if
desired.
H. H are the guards for the globe. Each guard is made out of one piece of wire
and the ends are hinged to the tubes of the lantern as shewn. cc are thumb pieces
on the guards and d d are catches fixed on to the tubes B B. One of the guards is
shewn open by broken lines figure 2 and when it is desired to close it under its
catch it is slightly pressed toward its hinge and this allows it to come under the
catch and it will be seen that it is impossible for the guards to be opened accidentally as
any knocking or jarring to which they may be subjected only tends to tighten them
within their catches.
It will be seen that the guards constructed as described may be readily removed
for packing and thus the space occupied is considerably reduced thereby lessening the
cost of carriage.
The guards constructed substantially as described and shewn may of course be
applied to tubular lanterns other than those in which the globe is hinged back.
The drawings on sheet 2 herewith shew another method for preventing the ingress
of atmospheric air into the air chamber and also means for retaining the globe in a
horizontal or approximately horizontal position when hinged back. Figures 5, 6, 7
and 8 are corresponding views to figures 1, 2, 3 and 4 respectively and like parts are
similarly lettered. According to this method for preventing the ingress of atmo-
spheric air into the air chamber F I form a rim e on the lower part of the cone E and
such rim fits around the inside of the chamber F and a ledge fits around the top
thereof see figure 8.
9g are ears projecting from the chamber F and h is a wire
passing through these ears and fastened to the cone E and forms a hinge for the
disc C and when such disc is hinged back as shewn by figure 7 the underside thereof
bears against these ears and keeps the globe in a horizontal or approximately hori-
zontal position.
I am aware that before the date of my application for a patent lanterns had
already been made in which the cone was hinged to the air chamber below it and I
lay no claim to such an arrangement per se.
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. In tubular lanterns the catch D in combination with the perforated disc Ü, sub-
stantially as described and shewn and for the purpose set forth.
2. In tubular lanterns the stop bin combination with the perforated disc C sub-
stantially as described and shewn and for the purpose set forth.

page_text: 3. In tubular lanterns placing the hinge nearer to one of the tubes B B than to the
other of these tubes as shown so that when the globe is hinged back it gives more
room for trimming lighting etc. than when the said hinge is placed midway between
the tubes B B.
4. In tubular lanterns the guards H H in combination with the catches d d sub-
stantially as described and shewn and for the purpose set forth.
5. In tubular lanterns the cone E constructed as described and shewn iu combina-
tion with the air chamber F and perforated disc C substantially as described and
shewn by the drawings on sheet 2 herewith.
AL
1
T
1000
JOHN THOM, JR.,
Wolverhampton,
Agent for the Applicant.