A Tubular Safe Oil Lamp.
Year: 1889

page_text: Date of Application, 7th May, 1889
Complete Specification Left, 28th Jan., 1890-Accepted, 8th Mar., 1890.
PROVISIONAL SPECIFICATION.
A Tubular Safe Oil Lamp.
We, GEORGE RUMBELOW of Herringswell, Mildenhall, West Suffolk, Gent. and
HARRY ALBERT RUMBELOW, Headmaster of the Newport Grammar School, Isle of
Wight do hereby declare the nature of this invention to be as follows
-
A reservoir supplies by means of tubes the actual oil only required for combustion
and this is absorbed into the wick which is, in main, isolated from the body of
oil in the reservoir. Protection against fire or from explosion is secured; in the
one case by a receptacle for water which on the overturning of the lamp extinguisbes
the flame and in the other by an escape for the heated gas. The advantages claimed
for this lamp are ease in filling the lamp with oil; a more than ordinary steady
light;ta diminution of the risk of fire by the overturning of the lamp and igniting
of the oil which in this lamp would be nearly impossible; a minimum of risk 'from
explosion; and an economy in the consumption of oil.
Dated this 4th day of May 1889
GEORGE RUMBELOW.
HARRY A. RUMBELOW, F.S.Sc.
COMPLETE SPECIFICATION.
A Tubular Safe Oil Lamp.
We GEORGE RUMBELOW of Herringswell, Mildenhall, West Suffolk Gentleman
and HARRY ALBERT RUMBELOW, F.S.Sc. Headmaster of the Newport Grammar
School Isle of Wight 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 improvements in the construction of the reservoir of oil
lamps and consists in dividing the interior into various compartments in order to
provide for storing the main supply of oil in a manner to be fed to a small subsidiary
reservoir in which depends the lamp wick only at the required rate for purposes of
consumption and in providing a store of water which may immediately flood the
small subsidiary oil reservoir and consequently saturate the wick and extinguish the
flame in case the lamp should accidentally be upset.
The design of such lamps may be varied to any extent so far as the outside shape is
concerned.
In the accompanying drawings in both the Figures of which like parts are
indicated by the same reference letter, we illustrate one design which will serve the
purpose of shewing clearly the manner in which we isolate and connect the various
interior compartments as provided for in accordance with our invention. Figure 1
is a sectional elevation and Figure 2 is a plan on the line ay in Figure 1.
A is the main reservoir for the oil which may be fed therein in the usual way by
an opening closed by a screw cap B. C is a small tube connecting the main reservoir A
with the small subsidiary reservoir D centrally placed in a surrounding tube E in
which it is secured by means of the small connecting tube C and a pillar F. The
bore of the small tube C is restricted to the smallest size capable of feeding the oil
from the main reservoir A to the small subsidiary reservoir D at the required rate for
maintaining the full size flame required, the object of thus restricting the flow being
to isolate as much as possible the store of oil in the main reservoir A in case the lamp
should accidentally be upset. The surrounding tube E passes through the main
reservoir and establishes a communication with the interior of the lamp beneath. The
whole of the base of the lamp and the surrounding tube E may thus be filled with

page_text: water which upon overturning the lamp would immediately flow into the small
subsidiary reservoir D and through the lamp burner extinguishing the flame.
The lamp burner is screwed into a deep socket G which fits tightly in the surrounding
tube E from which it may be readily withdrawn for refilling with water or for renewing
the wick J. Two small vent holes are provided in the deep socket G at H for the
purpose of preventing any accumulation of hot air or oil vapours in the small subsidiary
reservoir D.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
The combination of a main oil reservoir A with a small subsidiary reservoir D fed
therefrom only at the required rate for consumption substantially as and for the
purpose described.
2. The combination of a water reservoir with an oil reservoir substantially as and
for the purpose described.
3. The general construction, arrangement and combination of parts constituting our
improved tubular safe oil lamp substantially as described and illustrated by the
accompanying drawings.
Dated this 27th day of January 1890.
AYRTON & THOMAS,
Agents for the Applicants.