Improvements in Oil Lamps to Procure Immunity from Explosion.
Year: 1891

page_text: Date of Application, 22nd Jan., 1891
Complete Specification Left, 22nd Oct., 1891-Accepted, 19th Dec., 1891,
PROVISIONAL SPECIFICATION.
Improvements in Oil Lamps to Procure Immunity from Explosion.
EDWARD JOHN MACREADY 8 Osborne Road Belmont Road Liverpool
Surveyor &c. do hereby declare the nature of this invention to be as follows:-
By dividing the oil chamber into compartments, the inner chamber will contain
only a small quantity of oil from which the wick is fed.
The oil is supplied to the small or inner chamber by means of an aperture, or
apertures of smaller or larger dimensions according to size of lamp.
If the lamp be upset-then the contents of the inner chamber will be directed by
means of the arrow headed shield or guard into the upper compartments-thus
preventing the oil from flowing through the burner or burners-becoming ignited
and exploding.
The great bulk of the oil will remain in the outer or supply chamber no matter
in what position the lamp may be placed.
The principle applies to lamps burning one or more wicks.
The wick used is the ordinary flat wick.
The parts to be constructed of glass brass, bronze copper, tin iron lead gun
metal china earthenware or other substances from which lamps are made.
Dated this 1st day of Tanuary 1801
EDWARD JOHN MACREADY,
8, Osborne Road, Belmont Road, Liverpool.
COMPLETE SPECIFICATION.
Improvements in Oil Lamps to Procure Immunity from Explosion.
EDWARD JOHN MACREADY 8 Osborne Road Belmont Road Liverpool Surveyor
&c. 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-
By dividing the oil chamber "bb" into compartments the inner chamber "C
will contain only a small quantity of oil-from which the wick is fed.!
"
The oil is supplied to the small or inner chamber "C" by means of the aperture
or apertures "f" of smaller or larger dimensions according to the size of the lamp.
If the lamp be upset then the contents of the inner chamber "C" will be
directed by means of the arrow-headed metal shield or guard "A" into the upper
compartments "dd" thus preventing the oil from flowing through the burner or
burners-becoming ignited-and exploding.
The great bulk of the oil will remain in the outer or supply chamber "b" no
matter in what position the lamp may be placed.
The principle applies to lamps burning one or more wicks.
The wick (or wicks) used is the ordinary flat wick of various widths according
to size of lamp.
The upper portion of the lamp at Figure "G" will screw off and the shield "A"
being attached to the upper portion will come away with it and the wick may thus
be attended to.
The burner will be hinged at Figure "H" the shield "A" being divided at
Figure "H" to admit of wick being fixed into the burner.
The stopper or plug "E" will be ventilated to admit air to press oil up the
inner chamber "C" which supplies oil to the wick or wicks. The ventilator hole

page_text: will be automatically closed if the lamp be upturned thus the oil cannot escape
through the air hole.
The base of the lamp will be weighted to lessen the possibility of being over-
turned.
The parts will be constructed of glass brass bronze copper tin iron lead gun
metal china earthenware or other substances from which lamps are made. The
china and earthenware when used would be used only to encase the metal body of
the lamp.
The ventilation hole through the stopper or plug "E" will be closed auto-
matically by means of the metal ball inside the stopper or plug. This metal ball
when the lamp is upturned will run to the orifice of the ventilation aperture and
close it up and prevent escape of oil. The weight of the ball itself and the oil
behind the ball being the factors for keeping the ball in position-immediately the
lamp be righted the ball is released-the ventilation aperture opened-and the ball
returns to its proper position in the stopper.
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 what I claim is
1st. The body of the lamp being indestructible cannot be broken in case of
accident.
2nd. Vapor arising by the contact of the heated wick or wicks with the oil will
be condensed or cooled in the chambers d d and pass out through the stopper "E"
and thus prevent explosion.
3rd. The body of the lamp being divided into compartments prevents the wick
or wicks from coming into contact with the whole body of the oil and thus
prevents the possibility of explosion from the oil becoming heated and throwing off
vapor.
4th. No oil can escape from the lamp no matter in what position the lamp may
be placed or fall and thus the oil being prevented from reaching the flame explosion
is prevented.
Dated this Twenty-first day of October 1891.
EDWARD JOHN MACREADY.