Improvements in Lamps for Burning Petroleum and similar Oils.
Year: 1887

page_text: Date of Application, 30th Dec., 1887
Complete Specification Left, 1st Oct., 1888
Complete Specification Accepted, 2nd Nov., 188
Improvements in Lamps for Burning Petroleum and similar Oils.
I FRANCIS JOSEPH BATEMAN ALLEN of 44 Upper East Smithfield St. George's
in the East Merchant & Manufacturer do hereby declare the nature of my said
invention of "IMPROVEMENTS IN LAMPS FOR BURNING PETROLEUM AND SIMILAR OILS
to be as follows:-
22
My said invention has for its purpose automatically to extingush the lamp when
over turned by accident or design and is applicable to all kinds of burners whether
"central draft" or otherwise.
The button or flame spreader usually provided is attached to a rod extending
through a central passage or tube in the lamp vase. At the lower end of the rod is
provided a small drum or casing which surrounds a spring tending to force the drum
and with it the button down.
The upper end of spring is attached to the body of the lamp (or to its base) in any
convenient way.
The drum is also connected with a collar or ring freely moving up and down on the
foot of the lamp.
When the lamp is set down on a horizontal surface the drum is pushed into the base
of the lamp as far as it can go.
When the lamp is in any way tilted the spring forces outward the drum and with
the drum the button moves downward coming into contact with the wick tube and
smothering the flame.
The ring or the other arrangement on the outside of the lamp serves to hold the
extinguisher up if required.
Dated this 30th December 1887.
BERNHARD DUKES,
226, High Holborn, London, W.C.,
Agent for the Applicant.

page_text: COMPLETE SPECIFICATION.
Improvements in Lamps for Burning Petroleum and similar Oils.
1, FRANCIS JOSEPH BATEMAN ALLEN of 44 Upper East Smithfield, St. Georges
in the East, Merchant and Manufacturer, do hereby declare the nature of my
said invention for "IMPROVEMENTS IN LAMPS FOR BURNING PETROLEUM AND SIMILAR
OILS and in what manner the same is to be performed to be particularly described
and ascertained in and by the following statement:-
My said invention has for its purpose automatically to extinguish the lamp when
overturned by accident or design and is applicable to all kinds of burners whether
"central draft" or otherwise.
The button or flame spreader usually provided is attached to a rod extending through
a central passage or tube in the lamp vase. At the lower end of the rod is provided
a small drum or casing which surrounds a spring tending to force the drum (and with
it the button) down. The upper end of the spring is attached to the body of the lamp
(or to its base) in any convenient way.
The drum is also connected with a collar or ring freely moving up and down on the
foot of the lamp.
When the lamp is set down on a horizontal surface the drum or equivalent part is
pushed into the base of the lamp as far as it can go.
When the lamp is in any way tilted the spring forces outward the drum and with
the drum the flame spreader moves downward coming into contact with the wick tube
and smothering the flame.
The ring or other arrangement on the outside of the lamp serves to hold the
extinguisher up if required.
In the accompanying drawings several forms of my improved lamp are shown.
Fig. 1 is a sectional elevation of a lamp with a round burner.
Fig. 2 a like view of a lamp with a flat flame burner.
Fig. 3a sectional elevation of lower portions of a lamp with a modified connection
between the sliding ring H and spring arrangement.
Like letters indicate like parts in all the figures.
A is the body of the lamp, B is the foot, C the wick tubo, D a cylindrical passage
in which works the rod E by which the extinguishing device is operated. F is a
coiled spring surrounding the lower end of this rod. The spring may either be
surrounded by a box, drum, or cylinder G as shown in fig. 1, or it may be supported
by a disc G¹ as shown in figs. 2 and 3. H is a ring or sleeve sliding on the outside of
the lamp and it is connected with the rod E either by the pin or bar H' as shown in
fig. 1 or by the rods H2 shown in figure 3.
As hereinabove stated the rod is connected with the extinguisher and operates the
same. In round-wick lamps with a flame spreader the latter, 1, is mounted on the top
of rod E. The spring F tends to depress the said rod into the position shown in dotted
lines so as to bring the flame spreader down upon the wick. When however the lamp
is set down or when it is carried by the ring H the spring is compressed, the rod E
raised and the lamp is free to burn.

page_text: In a flat-flame burner lamp the action is analogous as will appear from fig. 2.
in which figure dotted lines again show the position of the parts when the
flame is extinguished. The extinguisher J is of usual construction and calls for
no description.
It has however to be observed that I prefer not to make a permanent connection
between the rod E and the extinguisher but so to unite these parts as to be detachable
from one another; a spring, catch, hook or other connection may be used, a screw K
however is shown in the drawings.
Instead of connecting the ring H and rod E by a bar H³ which prevents the
withdrawal of the burner from the lamp, I may unite the same by the rods H2
arranged as shown in fig. 3 so that the rod E may be entirely liberated and withdrawn
when desired.
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 I
claim.
1.) A lamp having a round-wick burner and a movable flame spreader I which is
actuated through the rod E so as to extinguish the flame when said rod is drawn
downwards by a coiled spring G in the base or foot of the lamp, the ring H, or the
weight of the lamp serving to counteract the tension of the spring all arranged and
operated as shown in fig. I of the accompanying drawings.
2.) A lamp having a flat flame burner and an extinguisher J operated by a rod E
wherewith it is connected by a screw K or by other means, said rod E being at its
lower end surrounded by a coiled spring F and connected with a ring II, all as and
for the purpose set forth.
3.) In a lamp having an extinguisher operated by a rod E, the bars H² for con-
necting the ring H with said rod E as set forth.
BERNHARD DUKES,
226, High Holborn, London, W.C.,
Agent for the Applicant.
BERNHARD DUKES,
226, High Holborn, London, W.C.,
Agent for the Applicant.