AN IMPROVED LAMP BURNER
Year: 1868

page_text: PROVISIONAL SPECIFICATION left by William Lincoln at the Office
of the Commissioners of Patents, with his Petition, on the 17th
February 1868.
I, WILLIAM LINCOLN, of Boston, Massachusetts, United States of
America, now of No. 8, Southampton Buildings, Chancery Lane, in the
County of Middlesex, do hereby declare the nature of the said Invention
for "AN IMPROVED LAMP BURNER," to be as follows:-
The said Invention relates to burners for lamps for burning petroleum
and other mineral oils, and consists chiefly in constructing such burners
with an adjustable part which carries the base or gallery for supporting
the chimney. This adjustable support is formed with a socket which
fits the wick tube and can be readily fixed upon the same or removed
therefrom without detaching the chimney or disturbing the other parts
of the burner.
The said Invention also consists partly in forming the socket which
fits the wick tube in such a manner as to leave air passages at the
sides of the said tube, the air entering such passages through perforations
at the bottom of the socket and being brought into contact with the
wick at the point of combustion through peculiarly formed narrow
apertures at the top of the socket. An adjustable perforated cap or

page_text: cover placed over the wick tube is formed with wide base which rests
on a perforated plate forming the base whercon the chimney is sup-
ported. The body of the burner to which the wick tube is attached
and which may be of any desired form and construction is preferably
made circular and is reduced in size at its upper end to correspond
with the diameter of the socket. The said tube is soldered or otherwise
securely attached to the body, and is provided with spurs or other devices
for adjusting the wick. The socket of the adjustable part of the burner
is soldered or otherwise firmly secured to the perforated plate or base.
The said socket is made circular, its lower end being made to project
slightly below the perforated plate and forming a ring or collar which fits
over the upper circular part of the body of the burner. This projecting
ring or collar is perforated with a series of small holes which admit
the air to the interior of the socket. The latter is contracted in width
at its upper part, the shape of this part of the socket being such as to
leave on each side of the wick tube a long narrow aperture. The central
portion of the sides of the socket just below the top is cut away leaving
a vertical as well as a lateral space between the top of the socket and
the top of the tube. By means of these side passages and apertures
which furnish a free supply of oxygen to the burning wick the brilliancy
and steadiness of the flame is greatly increased and the adjustable
support with the chimney may be removed from the body of the burner
without extinguishing the flame. The periphery of the perforated plate
of the adjustable support is formed with a rim or flange within which
the cap or cover and the chimney are placed. The said rim is provided
with a set screw or other suitable devices for securing the said cap and
chimney upon their support and for allowing their ready removal
therefrom when the same is desired. The cap or cover is formed with
a suitable aperture for the flame above the wick tube, and is made bell-
shaped, its base extending over the entire area of the perforated plate,
through whose perforations and through others formed in the cap air
is admitted to the burner. The cap is preferably furnished with a small
tongue which fits a hole formed in the flange of the perforated plate
and keeps the cap in the proper position over the wick 'tube.