IMPROVEMENTS IN LAMPS
Year: 1885

page_text: I, WALTER ALFRED BARLOW of 6 St Pauls Churchyard, in the city of London,
Patent Agent and Engineer, do hereby declare the nature of my said invention
for "IMPROVEMENTS IN LAMPS," a communication to me from abroad by Heinrich
Kock, Lamp Manufacturer, of Hamburg in the German Empire, to be as follows:-
This invention relates to lamps with circular burners for burning petroleum or
other mineral, animal or vegetable oil. The wick-holder of this improved lamp
consists of two concentrically arranged tubes of which the outer tube, can be
turned by hand, either direct or by means of a toothed wheel, and pinion or other
suitable mechanical arrangement. The lifting and lowering of the wick is produced
by turning the outer tube, the inside of which said outer tube is partly furnished
(at its upper end) with a spiral-like wide thread which said thread presses into the
wick, whilst the outer surface of the inner stationary tube, carries upright pro-
jecting ribs that press into or enter the other side of the wick, and prevent it from
turning, whilst the outer tube is being turned. The wick must in consequence
slide up or down on the inner tube as soon as the outer tube is being turned in
one or other way.
The said ribs and the thread may however be disposed in contrary manner so as
to fit the former to the inner side of the outer turnable tube, and the latter to the
inner stationary tube. By turning the outer tube, the ribs will carry the wick
with them round the inner tube, on which it must ascend or descend in consequence
of the projecting spiral thread of the inner tube. The stationary inner tube is
attached to the vessel or reservoir containing the oil, and it is open at the bottom
end to serve as a channel or chimney for carrying fresh air to the flame. The wick
instead of being formed of one piece in shape of a hose, may also be composed of
one, two or more flat parts arranged for the edges to adjoin in the hollow space
between the stationary and movable tube.

page_text: I WALTER ALFRED BARLOW of 6 St. Paul's Churchyard in the City of London
Patent Agent and Engineer do hereby declare the nature of this invention (a com-
munication to me from abroad by Heinrich Kock, Lamp Manufacturer of Hamburg
in the German Empire) 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 lamps with circular burners for burning petroleum or
other mineral animal or vegetable oil-and will be clearly ascertained by the
following description and reference to the accompanying 2 sheets of drawings.
Fig. 1 is a side elevation, Fig. 2 a like view in section of a lamp Fig. 4 is a
cross section through the corresponding burner in which the ribs n have been
attached to the inner side of the outer turnable tube b, of the burner; whilst the
inner stationary tube a carries the outer thread S. The wick D, is placed
between a and b and reaches with its lower end into the reservoir R, containing
petroleum or other volatile oil. Tube a is open at its lower end and allows fresh
air to pass through and into the flame when the lamp has been lighted.
turning tube b, the ribs n take the wick with them and turn it on the threaded
tube a, in consequence of which the wick follows the thread and rises or descends
according to the direction of turning.
By
The motion of tube b can be effected by a toothed wheel d that is attached to b,
and in gear with pinion e and that can be turned by hand as usually.
The threaded tube a is with its bottom end attached to reservoir R, whilst tube b
can be guided by means of ring g on cover h, of vessel R., A ring 7 that overlaps
the upper rim of ring g, keeps the latter down on vessel R as will be understood
with reference to the drawings. vand v³ designate a bayonet fastening for locking
ring l.
Instead of only a few ribs (as in Fig. 4 a greater number of ribs may be applied
to tube b, than are shown in the section (Fig. 5.)
Figs. 3 and 6 show a modification according to which the thread S, is applied to
the inner side of tube b whilst the ribs project from the outer side of tube a By
turning tube 6 the wick must rise or descend on tube a but will not turn with bas
in the construction before described.
In case these lamps have to be used as hanging lamps, tube 6 would have to
be turned from below by means of a key. The axle of a pinion e driven by d is
in that case prolonged and passed through a tube t. inserted into vessel R, as is
shown in Fig. 8, of the drawings, w, designates the prolongation of the axle, the
top part of which is linged to w so that it can be brought out of connection with d
in case the lamp has to be used at times as a standing lamp, and also for removing
the burner from the reservoir.
Z, designates a gutter at the top of outer tube 6 for the purpos of preventing
any oil passing from the wick over the outer edge of the tube b. The superfluous oil
is received by the gutter Z, and is returned through slots Z¹, to a lower part of the
wick. Figs 7 and 8 represent a modification of Fig. 3. Fig. 7 is an elevation of
the lamp and Fig. 8 a longitudinal section of the corresponding burner and upper

page_text: part of vessel R. The hollow central tube a is in this case not passed through R,
but attached to the top of same, the air entering tube a, at its foot (which is above
vessel R) as indicated by the arrow.
•
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 circular burners the construction for guiding the wick between the free space
of two tubes, a and b, whereof the outer tube, b, can be turned and is either
furnished with upright ribs, or with an inner threading, whilst the stationary inner
tube carries on its outer side in the one case a corresponding threading and in the
other case upright ribs as and for the purpose herein set forth and shown by the
drawings.
DLS MIL
Amma 1000