Year: 1887

page_text: We, JAMES BOWMAN, Senior and JAMES BOWMAN, Junior both of the firm of
Bowman and Son, Lantern Manufacturers, of the Square, Huntly Aberdeenshire, do
hereby declare the nature of our invention to be as follows :-
Our Invention comprises an improved construction, or new arrangement and
combination of the parts of that class of hand lantern in which a tube is fitted from
the air space round the burner on each side of the glass globe to a short vertical tube
closed at its upper end and having a deflecting plate at its lower end, which the side
tubes support a little over the globe, the top of the latter having a wire ring round it
which is secured to the upper plate. The glass globe is protected from being
accidentally broken by outer guard wires attached to vertical plates, which slide
on and off the aforesaid tubes on each side of the globe; and a handle is attached to
the top of the vertical tube above the globe, for carrying the lantern by hand, or
hanging it to any convenient carrying support. In this form of lantern the hot air
and gases generated within the globe impinge on the deflector, and a portion of them
pass through the upper vertical tube, and down the side tubes, and again enter the
burner, and keep up the draught within the globe, drawing in fresh air through the
perforated gallery supporting the globe, and preventing the formation of smoke.
The defects or disadvantages of this construction of lamps however are that when the
burner has to be trimmed and lighted, much labour and loss of time are involved, as
the lighting taper has to be inserted through a small hole in the plate supporting the
globe, until it ignites the wick, always a tedious and uncertain method so that
frequently before lighting can be effected, the guard wires and glass globe have
to be removed, and afterwards replaced. By our improvements we obviate these
defects.
According to our improvements we secure the lower ends of the return hot air
tubes to an outer socket fitting the outer wall of the air chamber surrounding the
burner, having the gallery secured to its upper end surrounding the wick burner.
This socket carrying the whole framework and globe on the gallery, is hinged by a
lateral branch or arm to a corresponding branch or arm projecting out from the oil
017

page_text: vessel below at right angles to the arrangement of hot air return tubes so as to fold
quite off the burner to one side of the oil vessel below, and so enable the lantern to
be lighted and trimmed, and folded down again over the burner and top of the oil
vessel, a slot being formed in this outer socket to pass down over the hand spindle for
raising and lowering the wick, and formed with a simple locking arrangement on the
opposite side to the hinge, consisting of a forked sliding wire which takes into slide
eyes soldered to the socket and to the oil lamp below. The top case of the burner
forming the air space surrounding the wick tube and flame, would by another
arrangement be secured to the upper part of the hinged socket above the return air
tubes, and so open up with the globe and its gallery, for lighting or trimming the
lamp. The oil vessel is preferably embossed in a corrugated semispherical form above
with rim and flat bottom to give steadiness below, and provided with a branch and
screw stopper for filling in the oil on one side. Although this folding arrangement
has here only been described as applied to circular globe hand lamps, it will be under-
stood that it may also be applied to square lamps, so as to open up these in like manner
for facilitating the lighting and trimming of these square lamps.
Dated this 26th day of February 1887.

page_text: Improvements in Lanterns.
We, JAMES BOWMAN, Senior, and JAMES BOWMAN, Junior, both of the firm of
Bowman & Son, Lantern Manufacturers, of the Square, Huntly, Aberdeenshire, do
hereby declare the nature of our invention and in what manner the same is to
be performed, to be particularly described and ascertained in and by the following
statement in writing, reference being had to the accompanying Sheet of Drawings,
and to the letters and figures marked thereon, that is to say :-
Our Invention comprises an improved construction, or new arrangement and
combination of the parts of that class of hand lantern in which a tube A is fitted from
a fixed air space A¹ round the burner B on each side of the glass globe C, to a short
central vertical tube A², closed at its upper end, and having a deflecting plate A³ at
its lower end, which the side tubes A support a little over the globe C, the top of the
latter having a spring retaining wire ring c, round it, which is secured to the upper
plate A3, at the back, and relieved from the glass by being raised in front at c¹. The
glass globe C is protected from being accidentally broken by outer guard wires d
attached to vertical plates d¹, which slide on and off the aforesaid tubes A A on each
side of the globe C; and a handle A' is attached to the top of the vertical tube A*
above the globe C, for carrying the lantern by hand, or hanging it to any convenient
carrying support. In this form of lantern the hot air and gases generated within the
globe impinge on the deflector A³, and a portion of them pass through the upper
vertical tube A³, and down the side tubes A, A, and again enter the burner B, and
keep up the draught within the globe C, drawing in fresh air through the perforated
gallery Csupporting the globe Cand preventing the formation of smoke. The defects
or disadvantages of this construction of lamp, however, are that when the burner B
has to be lighted, much labour and loss of time are involved, as before these operations
can be effected, the guard wires d and glass globe C have to be removed, and after-
wards replaced. By our improvements we obviate these defects.
And in order that our said Invention, and the manner of performing or carrying the
same into effect or practice, may be properly understood, we have hereunto appended
an explanatory Sheet of Drawings, in which the same reference letters are used
to indicate corresponding parts in all the Figures where shown.
Figure 1 is a front elevation of a lantern as fitted with our improvements; and
Figure 2 is a side elevation of the same at right angles to Figure 1, half of it being
shown in section. Figure 3 is a sectional plan of the lantern (with the globe Cand
gallery C removed) as taken on the line 1-1 of Figure 1. Figure 4 is an elevation,
broken away, corresponding to Figure 2, showing the lantern according to our
improvements in a folded or opened up position ready for lighting.
Referring to these Drawings:-According to our improvements we secure the
lower ends of the return hot air tubes A A to the outer air socket A', as a movable
socket, fitting the outer lower wall e of the air space surrounding the burner B, and
forming the top of the oil vessel E, having the gallery C secured to its upper end

page_text: surrounding the wick burner. This socket A¹, carrying the whole framework A, A,
and globe C on the gallery C¹, is hinged at a¹ by the lateral branch or arm a to a
corresponding branch or arm a² projecting out from the oil vessel E below, at right
angles to the arrangement of hot air return tubes A, A, so as to fold quite off the wick
burner B to one side of the oil and wick vessel E below, as seen particularly in
Figure 4, and so enable the lantern to be lighted and trimmed, and folded down again
over the burner B and top of the oil vessel E; a slot f being formed in this outer
socket A to pass down over the hand spindle f¹, for raising and lowering the wick,
and formed with a simple locking arrangement on the opposite side to the hinge,
consisting of a forked sliding wire g, which takes into slide eyes g¹ soldered to the
socket A and to the oil lamp E below. The oil vessel E is preferably embossed in a
corrugated semi-spherical form above, with wide rim and flat bottom at e¹, to give
strength and steadiness below, and provided with a branch and screw stopper at E'
for filling in the oil on one side.
Although this folding arrangement for getting at and lighting the lantern, has here
only been described and shown as applied to circular globe hand lanterns, it will be
understood that it may also be applied to square lamps or lanterns, so as to open up
these in like manner for facilitating the lighting and trimming of these square
lanterns.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that what
we claim is,-
First. The construction, or arrangement and combination, of the parts of folding
or opening up lanterns, all substantially as and for the purposes and advantages
herein described in reference to and shown in the accompanying Drawings.
Second. In lanterns, the fitting of the upper frame or part of the lantern carrying
the globe over the burner, on hinges a, a, a, so as to fold over and facilitate the lighting
and trimming of the lantern, all substantially as herein described in reference to and
shown in the accompanying Drawings.
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