Improvements in Lamps for Burning Hydro-carbon or other Oils.
Year: 1891

page_text: Date of Application, 6th Jan., 1891
Complete Specification Left, 25th Sept., 189'-Accepted, 31st Oct., 1891
PROVISIONAL SPECIFICATION.
Improvements in Lamps for Burning Hydro-carbon or other Oils.
I, SAMUEL ALBERT JOHNSON of 3 Montague Place, Poplar, in the County of
Middlesex, Engineer, do hereby declare the nature of this invention to be as
follows
-
The invention relates to improvements on that description of lamp in which a
moveable reservoir is employed in connection with a fixed tank which latter is in
connection at its lower part with the burner oil well. Hitherto such description of
lamp has been liable to overflow when tilted to a considerable angle and my present
invention has for its object the addition of improvements whereby the oil is fed
from the tank to the burner oil well in proportion as it is consumed by the wick
and whereby the direct communication is cut off between the tank and the burner
oil well thereby preventing the flowing of the oil from the one to the other on the
lamp being tilted. For this purpose I interpose between the tank and the burner
oil well a syphon or capillary feed consisting of a vertically divided chamber
communicating at its lower part with the tank on the one side and the burner oil
well on the other but separated from both by a central vertical division.
In order
to convey the oil from the one side to the other of such vertical division I employ
a capillary syphon wick which extends to the bottom of the space on each side of
such division and over the same thereby supplying the oil from the one point to
the other by capillary syphon action.
Dated January 6th 1891.
S. A. JOHNSON.
By Harris & Mills,
23, Southampton Buildings, London, Agents.
COMPLETE SPECIFICATION.
Improvements in Lamps for Burning Hydro-carbon or other Oils.
I, SAMUEL ALBERT JOHNSON of 3 Montague Place Poplar in the County of
Middlesex Engineer do hereby declare the nature of the said invention and in
what manner the same is to be performed to be particularly described and
ascertained in and by the following statement :-
The invention relates to improvements on that description of lamp in which a
moveable reservoir is employed in connection with a fixed tank which latter is in
connection at its lower part with the burner oil well. Hitherto such description of
lamp has been liable to overflow when tilted to a considerable angle and my
present invention has for its object the addition of improvements whereby the oil
is fed from the tank to the burner oil well in proportion as it is consumed by the
wick and whereby the direct communication is cut off between the tank and the
burner oil well thereby preventing the flowing of the oil from the one to the other
on the lamp being tilted. For this purpose I interpose between the tank and the
burner oil well a syphon or capillary feed consisting of a vertically divided
chamber communicating at its lower part with the tank on the one side and the
burner oil well on the other but separated from both by a central vertical division.
In order to convey the oil from the one side to the other of such vertical division, I
employ a capillary syphon wick which extends to the bottom of the space on each
side of such division and over the same thereby supplying the oil from the one
point to the other by capillary syphon action.

page_text: And in order that the invention may be properly understood and readily carried
into practice I will proceed aided by the accompanying drawings more fully to
describe the same.
Figure 1. is an elevation partly in section representing my invention applied to
a table oil lamp provided with two burners and
Figure 2. is a similar view to Figure 1, but representing a slight modification.
In both figures like parts are indicated by similar letters of reference.
a, represents the fixed oil tank, the removeable oil reservoir, cc oil supply
tubes d'd the burners and d¹¹ the burner oil wells. The removeable oil reservoir b
is filled through an orifice at its lower end provided with a screw cap and it has
also an oil supply aperture 6* and a valve 2 at its lower end which latter is
connected to a cross piece ³ which by rods or wires passing through vertical
tubes 65 fixed in the reservoir is connected to a hand piece 66 at the top of such
reservoir. The fixed tank a has one or more openings a¹ in the bottom thereof
according to the number of burners supplied, to allow the oil therein to flow into
the oil tubes c c.
According to the construction heretofore adapted the fixed tank a has been in
direct connection with the burner oil well d' through a connecting tube
thus if
the lamp were tilted the oil in the tank, a, could flow directly into the burner oil
well d' and out through the burner. Now according to my invention I obviate
this inconvenience by interposing between the fixed oil tank a, and the burner oil
well da syphon or capillary feed consisting as shown at Figure 1, of a vertically
divided chamber e communicating at its lower part with the tank a on the one side
and with the burner oil well on the other, but separated from both by a central
vertical division e' which rises to within a short distance of the top of such
chamber e. In order to convey the oil from the one side to the other of such
division e¹ I employ a capillary syphon wick which extends to the bottom of the
space on each side of the division e' and over the same thereby supplying the oil
from the one point to the other by capillary syphon action only and at the same
time cutting off all direct communication between the two sides of such chamber e.
In the arrangement shown at Figure 1 the syphon feed is placed outside of the
tank a but in that shown at Figure 2 the syphon feed is enclosed within the said
tank in which case the bottom of the oil reservoir is supported at a greater
height above the bottom of the tank a than in the arrangement shown at Figure 1.
and a cup e* is fixed in the bottom of the oil tank a to receive the oil as it flows
from the bottom of the reservoir and to seal the outlet from such reservoir when
the oil therein rises level with the mouth of the outlet 6*; capillary syphon wicks f
are placed over the edge of the cup e* with their inner ends extending to the
bottom of said cup and their outer ends extending to the bottom of the tank a
which by small holes a' communicate with the oil supply tubes c, c.
It will be evident that my improvements are applicable to removeable reservoi
oil lamps of various designs and provided with any required number of burners.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed I declare that what
claim is―
In lamps having a removeable oil reservoir and a fixed tank in connection with
the burner oil well or oil wells the combination therewith of a capillary sypho
feed consisting of a chamber to trap the oil flowing from the removeable reservoi
and capillary syphon wicks feeding the oil from the said chamber to the tubes in
connection with the burner oil wells substantially as herein shown and described.
Dated this oth 1
11
1001
S. A. JOHNSON.
By Harris & Mills,
23, Southampton Buildings, London, W.C., Agents.