IMPROVEMENTS IN PETROLEUM AND OTHER LAMPS
Year: 1884

page_text: CONTLETE DPECIFICATION.
I, PETER JENSEN of 33 Chancery Lane in the County of Middlesex Fellow of
the Institute of Patent Agents do hereby declare the nature of said invention
for IMPROVEMENTS IN PETROLEUM AND OTHER LAMPS" (A communication to
me from abroad by Fritz Samuel Svenson of Lund, Sweden Doctor of Arts)
and in what manner the same is to be performed to be particularly described
and ascertained in and by the following statement :—
The object of this invention is an improved disposition of lamp having for
purpose to avoid the removing of the chimney and the globe, when the lamp is
to be filled, lighted extinguished or trimmed, whereby those parts are not so
liable to be broken as with the hitherto employed constructions of lamp, and
whereby the lamp is besides much easier to handle.
The invention consists in constructing lamps in such manner that the gallery or
part supporting the chimney or funnel together with the globe (if fitted therewith)
is supported by arins, brackets or a socket rising from the foot of the lamp while
tlie burner and oil reservoir are arranged to be depressed for lighting, extinguishing
or trimming without removing the chimney and the globe, the foot of the lamp
being formed to suit.
An arrangement of lamp whereby the above advantages are attained, is shown
on Figure 1 of the annexed drawings representing a petroleum lamp with its lower
part in section.
The foot of the lamp, cast of any suitable heavy metal, forms at its lower part
the base A of the lamp and its top forms an urn or casing B. In the middle of the
lamp-foot is a vertical cylindrical hole C, which however does not traverse the whole
foot. At the top of the casing two or more radial arms or supports D are fastened
by screws, which arms carry or are formed in one with a socket or part socket E
by which the globe and the glass-chimney are securely held, the socket E being of
a form to grasp the perforated socket or gallery G' which carries the chimney and
the globe. G is the burner which is here shown conical at the top and F is the oil
reservoir to which the burner is screwed and which bears against the lower edge
of the perforated socket or gallery G. At the bottom of the reservoir F there is
[Price 4d.l

page_text: a tube H fixed by screwing or otherwise to the reservoir F, and descending in tho
cylindrical hule C in the lamp-foot. In the tube is a helical spring I, the one end
of which rests against the bottom of the hole and the other end of which bears
against the top of the oil-reservoir and tends to press the reservoir against the
lower edge of the socket G'. The flange or cap K on the tube H serves only to
hide the tube and to give a more elegant appearance to the lamp. The tube H
has a longitudinal slot Li into which a peg M at the top of the tube Centers. At
the top of the slot are two lateral slots N.
When the lamp is wanted to be lighted or trimmed or extinguished or oil poured
into the reservoir, the latter is depressed with the burner, whereby the spring I is
compressed and the tube H descends into the hole C until the peg M encounters
the top of the alut L, whereupon the reservoir is turned a little to one side so
that the peg M enters into one of the slots N thus retaining the whole in position.
The burner G which alone accompanies the reservoir F will then get with its top
+o far below the metallic gallery or socket G¹ that the burner may be screwed off
or the wick be trimmed and lighted. Both the globe and the chimney rest mean-
while at their places on the gallery or socket G₁ which is held in by the socket E.
It is from the above easy, to understand, how the reservoir may again be brought
to its former position namely, by turning the reservoir back laterally so that it can
rise freely.
It is evident that the above arrangement of the burner of lamps may be applicable
also for suspension lamps, in which case the globe, the chimney and the gallery or
Bocket, are secured in a special suspension frame, while the oil reservoir with its
burner are kept pressed against the bottom of the socket by means of some suitable
arrangement of chains pulleys and weights or vice versa as shown in Figure 2.
And 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 as the invention communicated to nie is.
. יז
First Constructing lamps in such manner that the gallery or part carrying
the chimney and globe (if so fitted) are securely held by a support from the foot
or borty or stand of the lamp while the burner and oil reservoir are arranged to
be separated and lowered from the said gallery for the purpose of filling trimming
and lighting of the lamp without removing the chimney and globe, substantially
as set forth.
Second-The arrangement in lamps of an oil reservoir F with its burner G in
such a manner that a tube H fixed at the bottom of the reservoir, and containing
a spring I and provided with a slot L may be brought downwards into a cylindrical
hole in the lamp-foot and held there and that the gallery or socket G₁ with the
globe and the chimney are meanwhile held in place by a support or supports D, E
from the lamp-foot for the purpose of filling, trimming and lighting of the lamp
without removing the chimney and the globe substantially as shown in the
drawing.
Deted this Tenth day of November 1884.