A Safety Burner for All Kinds of Lamps used to Burn Paraffin, Petroleum, and other Hydro-carbons.
Year: 1894

page_text: The decision of the Comptroller-General of the 15th day of November, 1894, allo ved,
under Section 18 of the Patents, &c. Act, 1883, an Amendment of this
Specification.
Date of Application, 21st Apr., 1894
Complete Specification Left, 19th Jan., 1895-Accepted, 23rd Mar., 1895
PROVISIONAL SPECIFICATION.
A Safety Burner for All Kinds of Lamps used to Burn Paraffin,
Petroleum, and other Hydro-carbons.
ALFRED WALTER LUCAS F.G.S. of Queen's Park, Chester, Head Master of
the Higher Grade Boys' School, of Saint John Street, Chester, does hereby
declare the nature of this invention to be as follows:-
The burner is so constructed that immediately a lamp to which it is applied is
tilted for forty degrees or more from the perpendicular the light is extinguished
by automatic action.
A. (1.) Sliding extinguishers are fitted to the wick-tubes, and free to move up
and down on them. The shutters of these extinguishers are arranged between the
wick-tubes in a duplex burner, instead of outside, as in ordinary burners; and
these shutters are specially constructed for the automatic process of closing.
(2.) The extinguishers in a duplex burner are connected by a round metal
bridge, which receives one end of the upper of the two crank-levers, designed to
move the shutters.
(3.) In the lower part of the body of the burner a lever is pivoted between the
wick tubes. The pivot is placed between the ends of the lever, so that the weight
attached to one end can be counterbalanced at the other.
(4.) One end of this lever is prolonged until it passes through a perpendicular
slot in the side of the body of the burner, & projects beyond, to form a hand
extinguisher.
(5.) From the pivot joint of this lever springs an arm, to which is jointed' a
second lever, the other end of which in the duplex burner is jointed to the bridge
between the extinguishers.
(6.) A weight is hung to the shorter end of the lower lever by a few links of
chain, which pass through a circular hole in the base of the burner, and so suspends
the weight in the reservoir for the oil.
(7.) In the plate, covering the cog-wheels that raise the wick, is a depression
with a round hole at its lowest point. A slot is cut through the middle of this
depression in the plate, to enable the long projecting end of the lever to move up
and down freely.
(8.) A metallic ball free to roll in any direction but so confined that it always
comes to rest over the hole in the depression of the plate, by rolling over the top
of the long end of the lever when it is pressed down, and when the lamp is in a
perpendicular position, counterbalances the weight on the short end of the lever.
This cranks the projecting arm of the first lever, & the upper lever, and brings &
keeps down the extinguishers during the time the lamp is lighted.

page_text: (9.) Immediately the lamp is tilted, the ball rolls off the top of the lower lever,
& the weight on the shorter end of the lever comes into play, brings the arm of
the lower lever & the upper lever (which were before cranked) into a straight line,
& so raises the extinguishers over the burning wicks.
(10.) A projection at the top end of the second lever now comes under
projections on the shutters of the extinguishers, & closes them, and keeps them
closed.
B. The burner has also a lifter to secure space for lighting the lamp without
removing chimney, shade, or globe-which consists of two cranked levers moved
by a finger-key, & fixed by being brought into a straight line, or by rackwork and
a wheel, working into it with a special contrivance for keeping it lifted.
C. A spring locking catch is also provided for the collar of the lamp, which
prevents the possibility of the burner becoming detached from the reservoir, &
consequently prevents the oil from being spilt about, should. the lamp fall down, or
be overturned:
Dated this 10th do of Anni 1004
A Safety Burner for All Kinds of Lamps used to Burn Paraffin,
Petroleum, and other Hydro-carbons.
I, ALFRED WALTER LUCAS, F.G.S., of Queen's Park, Chester, Head Master
of the Higher Grade Boys' School of Saint John Street, Chester, in the County
of Chester, 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:-
:-
The burner is so constructed that immediately a lamp to which it is applied is
tilted for forty degrees, or more from the perpendicular the light is extinguished
'by automatic action.
The invention will be understood from the following description, reference being
made to the accompanying drawings.
Figure 1. is a view of a duplex burner, partly in section; with dome & gallery
raised, and one of the wick tubes removed to display the mechanism, which is
arranged between the two wick-tubes.
Sliding extinguishers A are fitted to the wick-tubes, and free to move up &
down them. The shutters B of these extinguishers are arranged between the
wick-tubes in a duplex burner instead of outside, as in ordinary burners, and these
shutters are specially formed for the automatic process of closing, as shown
.Fig. 2.
The extinguishers in a duplex burner are connected by a round metallic
bridge C, to which is attached one end of the lever D.
In the lower part of the body of the burner a lever E is pivoted between the
wick-tubes. The pivot F is placed between the two ends of the lever E, that the
weight G attached to one end may be counterbalanced at the other end.
This other end of the lever E is prolonged, so that it passes through a perpen-
dicular slot H, in the side of the body of the burner, and projects beyond, to form
a hand extinguisher.
At the point I the lever D is jointed to the lever E.
The weight G is suspended from the shorter end of the lever E, by a few links
of chain K, which pass through a circular hole L in the base of the burner.
In the plate M which covers the cog-wheels used to raise the wick, is a
depression N, with a round hole at its lowest point. A slot is cut through the

page_text: middle of this depression N, to enable the projecting end of the lever E to move up
& down freely.
The space between the edges of the wick-tubes and the opposite side of the body
of the burner is formed into a cup-shaped chamber, in which is placed a metallic
ball O, free to roll in all directions, but so confined that when the lamp is in a
perpendicular position, and the lever E is pressed down, the ball O comes to rest
over the top edge of the lever E, and in the hole at the base of the depression N.
The lever E being pressed down, the levers D and E become cranked, which brings
down the extinguishers A; and so long as the ball remains at rest over the top
edge of the lever E, the extinguishers are kept down.
Immediately the lamp is tilted in any direction (as shown, partly in section, by
Fig. 2) the ball O rolls off the top edge of the lever E, the weight G on the
other end of the lever E comes into play, and brings the points F. 1. and C
into a straight line, so raising the extinguishers A over the burning wicks.
An extension P at the upper end of the lever D now comes under projec-
tions on the shutters of the extinguishers A, closes them, and keeps them
closed by the action of the weight G.
This process is equally applicable to a single wick burner of fair size: and
also to a small burner by enlarging that portion of the body of the burner
where the ball O is placed, to enable it to move freely. A separate chamber
for the ball O may also be fixed on the outside of the body of either or any
burner.
Fig. 3 (a side elevation partly in section) represents an alternative method
applicable to single wick burners.
Here instead of the use of levers D and E, a pulley R is placed on one side
of the wick-tube, round which the chain K coils, on the end of which the
weight G is suspended. The revolving of the pulley lifts or depresses the
extinguisher A, while a leg S projecting from the lower edge of the shutter B
has its end pivoted in the side of or on the pulley R which by its motion opens or
closes the shutter B.
On the other side of the wick-tube is the depression N with the ball O
arranged to move as before explained; which serves to weight down, or release
the extinguishers, as in the case of a duplex burner.
Fig. 4 represents a spring locking catch which is fixed to the collar of the
iamp, and automatically closes, so that the burner cannot become detached from
the reservoir, should the lamp be overturned.
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 a lamp burner, the use of a single metallic ball, free to move in
direction ;
any
and the eup shaped chamber depression in which it is contained, substantially as and
for the purpose specified.
2. The arrangement of the shutters of the extinguishers between the wick tubes,
instead of outside them, substantially as specified.
3. 2. The combination and arrangement of the levers D and E for the purpose.
of raising and lowering the extinguishers, & closing the shutters substantially as
set forth and described.
4. 3. The pulley in single wick burners, for lifting the extinguishers, and closing
the shutters, substantially as described and shown on the drawings.
5. The spring locking automatic catch for the collar of the burner substantially-
as and for the purpose described.
Dated this 17th day of January 1895.
ALFRED WALTER LUCAS.