Improvements in Burners for Lamps to Burn Solid Paraffin, Naptha line, or such Oils or Hydro Carbons as Freeze or Solidify at a Low Temperature.
Year: 1888

page_text: Date of Application, 4th Apr., 1888
RES
Complete Specification Left, 3rd Jan., 1889
Complete Specification Accepted, 12th Feb., 1889
Improvements in Burners for Lamps to Burn Solid Paraffin, Naptha
line, or such Oils or Hydro Carbons as Freeze or Solidify at a
Low Temperature.
DOUGALD BALLARDIE Lamp Maker 40 Kenmure Street East Pollokshields Glasgow,
do hereby declare the nature of this invention to be as follows:-
This invention has reference to improvements in burners of Lamps for burning
solid hydro-carbons.
The improvement consists in using two wicks so placed as to form a duplex burner
with or without an air tube between them.
On the wick tubes above the resorvoir a burner of copper or other conducting
metal, shaped to surround both wicks and open at top and bottom to admit a free
passage of air. The top of burner to have two or more projections which may be
inclined towards the wick tubes or from them, and at the bottom of the burner the
metal is contracted till it comes in contact with the wick tubes and by this con-
nection it conducts the heat from the flame to the wick tube which facilitates the
burning of the solid hydro-carbon.
Dated this Third day of April 1888.

page_text: DOUGALD BALLARDIE Lamp Maker 40 Kenmure Street, East Pollokshields Glasgow,
in the county of Renfrew, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and ascer
tained in and by the following statement :-
My said invention has reference to improvements in or connected with the con-
struction of burners in lamps for burning solid paraffin, naphthaline, or such oils or
bydro carbons as freeze or solidify at a low temperature.
And in order that the nature and novelty of my said invention, and the mode and
means of putting the same into effect or practice, may be properly understood I shall
now proceed to describe the several figures on the sheet of drawings which I have
here appended for that purpose, the same reference letters indicating the same or
equivalent parts in all the figures where shown.
Fig. is a drawing of the burner with part of the outer rim E removed to shew
fully the internal arrangement. Fig. 2 is a vertical section of the burner. Referring
to these figures; The burner consists of two wick tubes or holders A. A. which are
formed of copper or other heat conducting metal, and are attached to a metal
plate F to keep them in position; the wick tubes or holders are made long enough to
reach nearly to the bottom of the reservoir;
The wick tubes or holders are separated by an air tube B, which is round at the
bottom, where it is fixed into the reservoir, but flattened at the top to allow of the.
wick tubes being near each other.
A cap or burner () made of copper or other heat conducting metal so formed as to
surround the two wick tubes or holders. It is fastened to these at CC and so
constructed as to receive at the bottom H the necessary volume of air, and direct it
to the flame. This is effected by making the orifice wider at the bottom than at the
top. At the upper end of the air passage the metal forming the cap or burner is
carried higher than the wick tubes or holders A A and bent first inwards then out-
wards so as to impinge upon and distend the lamp flame; it is heated by the flame,
and heat is conducted down through the wick tubes or holders to the solid hydro
carbon in the reservoir the hydro carbon is thereby melted suitably for combustion
in the lamp. The cap or burner is covered by a metal dome D. Ď. similar to those
used in ordinary paraffin lamps.

page_text: The wicks may be raised or lowered by the usual arrangement of cog wheels.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is:
First. The adaptation of a duplex burner to burn solid paraffin, naphthaline, or such
oils as freeze or solidify at a low temperature.
Second. The form or arrangement of cap or burner, for the purposes, and sub-
stantially as, herein described, and shown in the accompanying drawings.
Dated this 1st day of January 1889.
DOUGALD BALLARDIE.