Year: 1886

page_text: Date of Application, 29th Mar., 1886.
Complete Left, 29th Dec., 1886.
Complete Accepted, 1st Feb., 1887.
I JAMES ROOTS 25 The Avenue Tottenham N Engineer do hereby declare the
nature of this invention to be as follows:-
The cone is attached at the top of a tube which descends through the reservoir to the
bottom of the lamp and which I call the air tube. The wick case may either pass through
the side of the tube or be fixed to a small tube to supply oil that passes across the air
tube and into the wall of the reservoir. The reservoir is preferably fixed to an outer
tube but it may be attached to the air tube. Either a flat wick burner or a circular
burner may be used. The cone is of thicker metal and a piece of good-conducting metal
may be placed near the flame and attached in the air tube. The air tube becomes heated by
the flame and the air within it ascends a current is thus automatically induced sufficient.
for combustion so that a chimney is not required. The air tube may also have within
it a spindle bearing upon a point at the bottom, having fixed upon it two fans a larger
at the top above the flame and a smaller at the bottom of the air tube. Both bearings
may be below the flame. The heat of the flame revolves the upper fan the upper
revolves the lower automatically forcing a current of air up the air tube for cumbustion
and no chimney is used. The upper fan is hidden by a reflector. If a button is
required for a circular burner it may be fixed to the spindle of the fan and revolve with
it. Two or more burners may be used with the same air tube. A hemi-spherical
glass may be used with the concavity upward and the burner projects through the
bottom of it, a reflector with a metal chimney at its centre is attached at the top of the
glass and a glass chimney is thus avoided. I construct a cone for flat wicks with
more than one flame slot cut in it, and the slots cross one another and form equal
angles thus if there are two slots, they are at right angles and the wick cases are also
placed crosswise beneath the slots, three wicks may be used, but preferably four are
used with a space between them, corresponding to the centre of the two slots,
invention may be used for either lighting or heating.
This

page_text: I, JAMES ROOTS of 25 The Avenue, Tottenham 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 oil lamps, for the purpose of increasing
and regulating automatically the draught to the flame, to ensure a brilliant light and a
more perfect combustion.
For the purpose of this invention (which is applicable to flat or circular burners) I
provide the air tube with a spindle bearing upon a point at the bottom and having
fixed upon it two fans, a large one at the top above the flame and a smaller one at the
bottom of the air tube. The heat of the flame revolves the upper fan, the upper
revolves the lower, automatically forcing a current of air up the air tube for combustion,
no chimney being used. If a button is required for a circular burner it may be fixed
to the fan spindle and revolve with it. Two or more burners may be used with the
same air tube.
These lamps may be used either as table, suspension, bracket, or railway lamps.
The reservoirs may be of any convenient shape. The upper fan may be hidden by a
reflector having large perforations, but if the lamp is intended for heating or stove
purposes it is enclosed by the frame.
This invention will be clearly understood by reference to the annexed drawings in
which I show three methods of carrying the invention into effect.
a is the driving
fan (rotated by the heat of the flame b) on the same spindle c as the draught or blast
fan d, which it actuates to blow air through the air tube e. f is the oil reservoir
and ga button attached to spindle c.
In Figure 1 I show the blast fan
form a circular burner.
of screw shape and two wick cases h, ³, bent to
In Figure 2 I show a passage i around the oil reservoir for supplying air from the
fan d to the outside of two flat wick cases h, h³, and also a reflector k.
10
Figure 3 is another modification of Figure 1 in which the cap jis shaped to act
instead of the button g to spread the flame.
When two or three separate burners are required to be supplied the draught may be
conducted to them by tubing. The Spindle c may be jointed so that a portion may be
detached to better enable the lamp to be trimmed.
This oil lamp may be used for either lighting or heating.
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed I declare that what I claim is :-
1. Arranging two fans in an oil lamp substantially as shown in the annexed drawings
one fan for automatically producing a current of air for combustion by the rotation of
the other fan driven by the heated air escaping from the flame.
2. In an oil lamp the combination of an oil reservoir and burner or burners with
two fans, the one driving the other, producing the necessary current of air for
combustion.
3. The construction as described and shown in Figures 1, 2, and 3.