Improvements in the Suspension or Attachment of Petroleum and other Oil Burning Lamps.
Year: 1894

page_text: Date of Application, 25th Jan., 1894-Accepted, 3rd Mar., 1894
COMPLETE SPECIFICATION.
Improvements in the Suspension or Attachment of Petroleum and
other Oil Burning Lamps.
I, EDWARD GRUBE of Alt Rahlstedt near Wandsbeck in the Empire of
Germany, Manufacturer 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 :-
This invention relates to the suspension or attachment of petroleum and other
oil burning lamps. Heretofore such lamps, comprising the reservoir and burner
with the usual accompanying parts have been fitted with a glass chimney and then
rested in a suitable suspended frame. The present invention consists in making
the chimney a part or attachment of the permanently suspended frame and
preferably making such chimney of metal, while the lamp proper is secured to the
frame by a screw or screws or equivalent devices up against said chimney.
The connection between the lamp and the chimney is made either by a central
rod carried down through the chimney and through a passage way down through
the axial centre of the lamp, and a nut helow the lamp; or by means of two or
more rods arranged laterally of the chimney and passing through lugs on the lamp
or through a flange or ring surrounding the same. Between the lamp and the
chimney is a short cylinder or equivalent transparent enclosure of glass or mica.
In the annexed drawings
Fig. 1 is a vertical section partly in elevation of a suspended lamp and hanging
frame the former being supported from the latter by lateral rods.
Fig. 2 is a sectional view of a similarly suspended lamp and frame but having
one central suspending rod only.
c is the chimney and a the lamp & the intermediately inserted transparent short
cylinder or globe. e is a tube connected to the chimney and of greater diameter.
d is the arrangement for suspending the lamp as a whole being applied either to
the tube e or to the chimney. fare rods arranged laterally and passing
downward, being screw threaded at their lower ends to be secured by the nuts g
after passing through the flange, ring, or lugs on the lamp a.
9,
The chimney is fixed in the hanging part of the lamp, while the lamp proper
is secured to it by being passed onto the rods ff¹ and secured by the nuts
the
cylinder having been previously inserted between the chimney and the lamp.
Formerly it was practically impossible in such hanging lamps to use any but a
glass chimney since the combination of materials such as metal above and glass or
mica below in the construction of the chimney was prevented by the action of the
weight of the upper part upon the lower. The combustion is also improved by a
longer chimney. The comparatively lengthy metal chimney used in the present
invention is carried by the hanging frame and consequently exerts no weight on
the cylinder which may thus be of the thinnest or weakest material.
In the arrangement shown in Fig. 2 the chimney c is also carried by the hanging
frame while the receiver and burner constituting the lamp is suspended therefrom
by the single central rod passing down through the burner and receiver and
secured by a nut 9 or by any equivalent device which will prevent it falling off the
rod. Here also a transparent short cylinder is inserted between the lamp and
chimney. This arrangement presents the advantage that the suspending rods f
cast no shadow when the lamp is burning.

page_text: Having now particularly described and ascertained the nature of this said inven-
tion and in what manner the same is to be performed I declare that what I
claim is
The improvements in or relating to the suspension of oil burning lamps, consisting
in the combination with the suspending frame of a metal chimney forming a part
or attachment thereof, a rod or rods depending from said frame or chimney and a
lamp adapted to be secured by means of said rods and nuts or other fasteners and
having a short cylinder for connecting with the said chimney or an equivalent
transparent inserted continuation of said chimney substantially as and for the
purpose set forth.
Dated this 25th day of January 1894.
R. HADDAN,
Herbert Haddan & Co.,
18, Buckingham Street, Strand, London, Agent for Applicant.