An Improved Hurricane or Wind Proof Lantern.
Year: 1888

page_text: Date of Application, 14th Dec., 1888
Complete Specification Left, 4th Sept., 1889-Accepted, 2nd Nov., 1889
PROVISIONAL SPECIFICATION.
An Improved Hurricane or Wind Proof Lantern.
I, WILLIAM SANDBROOK of Wellington Works Ebbw Vale in the County of
Monmouth, Ironmonger, do hereby declare the nature of this invention to be as
follows:-
This invention relates to the kind of lantern known as hurricane lanterns used in
the open air for burning mineral oils. They are fitted with a metal cap over the
glass globular chimney or globe, and have curved metal tubes connecting the cap
and the burner oil or container, which are at the bottom of the lantern, and these tubes
are sometimes employed to feed the burner with air which has been heated in the
cap, but in many of the common hurricane lamps these tubes simply serve as supports
to the cap and have no passage for air to the burner.
My improved lantern is designed to facilitate the removal of the glass for lighting
trimming and cleaning and also to render the flame more wind-proof_than before.
To effect this I use over the glass a deeper cap than is customary. This cap can
be formed of an inverted metal cup in one piece, and has on one side of its lower
edge, a flap or door, which opens to allow the glass to be removed. To secure the
door in the cap, I use an improved fastening consisting of a broad steel spring or
tongue, soldered or rivetted at one end the other ond being turned inwards so as to
clip over a wire in the edge of the door and to provent rattling or shaking, I place
inside the door or doorway a check or counter spring formed by turning up a
small loop of hard wire so as to engage against the arch of the door space, or if
fixed on the doorway against the door itself. Hanging to the door is a pear
shaped wire guard to protect the globe and keep it in its place. A similar guard
bangs down from the other side of the cap. Inside the cap is a horizontal
perforated plate placed about three-quarters of an inch above the top of the glass,
and the cap overhangs the glass about a quarter of an inch and is also nearly an
inch larger in internal diameter than the glass is in external diameter. Consequently
there is a free passage of external air over the glass and upwards into the cap
through the perforated plate.
Thence by means of the two curved metal tubes the air passes downwards to a
chamber beneath the burner.
This chamber has a few small holes admitting a little external air.
In the centre of this chamber is the burner consisting of the usual wick tube and
cone, and the air in the lower chamber passes upwards through the cone into the
glass during combustion.
The gallery which receives the globe is a perforated metal disc with turned up
edges, and hinged on to one of the wire guards. This allows it to be readily
removed for trimming or lighting, while an ample supply of air is insured to the
flame during combustion. There is however nothing new in the burner itself or the
glass. My improvements affect only the method of securing and removing the globe
and of admitting external air to the combustion chamber.
Instead of being in one piece with a door, my cap might be made in two pieces,
one being a hoop sliding down over the upper cap so as to lengthen it, and yet be
easily lifted to allow the withdrawal of the glass. A slot and bayonet joint could be
used to fasten this hoop in position.
To keep the glass from jumping up when the lantern is jerked, I project a piece
of wire, or small steel spring the end of which bears with sufficient firmnes against
the top edge of the glass. This wire can be attached to the cap or to the door or
hoop before described.

page_text: When preferred the usual vertical collar can be employed for holding the lower
end of the glass. In this case I insert a small sliding door in the collar for lighting
purposes. This avoids the necessity of removing the glass.
Dated this 14th day of Deconsho 1000
S. S. BROMHEAD,
97, Newgate Street, E.C., Patent Agent.
COMPLETE SPECIFICATION.
An Improved Hurricane or Wind Proof Lantern.
I, WILLIAM SANDBROOK of Wellington Works, Ebbw Vale, in the County of
Monmouth, Ironmonger 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 relates to the kind of lantern known as hurricane lanterns, used
in the open air for burning mineral oils. They are fitted with a metal cap over the
glass globular chimney or globe, and have curved metal tubes connecting the cap and
the burner or oil container, which are at the bottom of the lantorn, and these tubos
are sometimes employed to feed the burner with hot air which has been heated in
the cap but in many of the common hurricane lamps, theso tubes simply serve as
supports to the cap and have no passage for air to the burner.
My improved lantern is designed to facilitate the removal of the glass for
lighting trimming and cleaning, and also to render the flame more wind-proof
than before. To effect this I use over the glass a deeper cap than is customary.
This cap as will be seen by the accompanying drawings can be made in two ways,
namely, either as an inserted metal cup A, in one piece as shewn in Fig. 1, or as in
Fig. 2 of two pieces B. C. one sliding over the other. In the kind of cap shewn in
Fig. 1 there is on one side the hinged door D, which opens, to allow the glass G,
to be removed. To secure this door in the cap I use an improved fastening
consisting of the broad steel spring or tongue E, which is soldered or rivetted at one
end, the other being turned inwards at H so as to clip over a wire or tubular
projection on the edge of the door. To provent rattling, or shaking, I place
inside the door a check spring or counterspring J, formed of a small loop of hard
wire, which if fixed on the door will press against the arch of the doorspace, or if
fixed on the doorway will press against the door itself. Hanging from the door is a
pear-shaped wire guard K to protect the globe and keep it in its place. A similar
guard haugs down from the other side of the cap. Inside the cap is a horizontal
perforated plate placed about three-quarters of an inch above the top of the glass,
and the cap overhangs the glass about a quarter of an inch, and is nearly an inch
larger in internal diameter than the glass is in external diameter. Consequently
there is a free passage of external air over the glass and it penetrates through the
perforated plate. Thence by means of two curved metal tubes the air passes down-
wards to a chamber M beneath the burner. This chamber has a few small holes
admitting a little external air. In the centre of this chamber is the burner
consisting of the usual wick-tube and cone, and the air in the lower chamber passes
upwards through the cone into the glass during combustion. The gallery N which
receives the globe, is a perforated metal disc with turned up edges, and is hinged on
to one of the wire guards. This allows it to be readily removed for trimming or
lighting, while an ample supply of air is insured to the flame during combustion.
There is however nothing now in the burner itself or the glass. My improvements
affect only the method of securing and removing the globe and of admitting external
air to the combustion chambers.
Fig. 2 represents the alternate form of my cap which is here shown constructed of
two small hoops or rings B C one being the fixed cap B and the other a hoop O
sliding over B so as to lengthen it, and yet be easily lifted to allow the withdrawal of
the glass. A slot or bayonet joint could be used to fasten this hoop in position.

page_text: To keep the glass from jumping up when the lantern is jerked I project a piece of
wire or small steel spring, the end of which bears with sufficient firmness against the
top edge of the glass. This wire can be attached to the cap or to the door or hoop
before described.
When preferred the usual vertical collar can be employed for holding the lower end
of the glass. In this case I insert a small sliding door in the collar for lighting
purposes. This avoids the necessity of removing the glass.
Fig. 3 shows a perspective view of the spring for holding the door tight.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is :-
In a hurricane lantern an extended cap over the glass with door and fastening or
with part constructed to slide, in combination with the wire loop or spring J, the
guards K, a horizontal perforated plate, and a chamber beneath the burner as herein
described and set forth.
Dated thin 1th dow of Cantanha ca
S. S. BROMHEAD,
97, Newgate Street, E.()., Patent Agent.