Improvements in or relating to Acetylene Lamps.
Year: 1898

page_text: Date of Application, 8th Feb.,
1898
Complete Specification Left, 9th Apr., 1898-Accepted, 23rd Apr., 1898
PROVISIONAL SPECIFICATION.
Improvements in or relating to Acetylene Lamps.
I, JAMES MAJOR, of 28, Cannon Street, Eccles, in the County of Lancaster,
Draughtsman, do hereby declare the nature of this invention to be as follows:-
The object of this invention is to simplify and cheapen the construction of
acetylene lamps and to provide a lamp which is very compact in form and
especially suitable for attachment to cycles.
I propose in the first place to make the chamber for containing the water; or
other reactionary fluid, surround the lower part of the carbide chamber, at the
upper. end of which I fit the gas burner which may be of any suitable form.
The upper end of the carbide chamber is made so as to be readily removed. The
combustion chamber, reflector and lens fit upon the upper part of the carbide and
water chambers.
The carbide chamber is. made open, or provided with an opening or openings, at
the bottom; and such opening may be provided with a short piece of wick, sponge,
or the like, fitted in a small socket or recess beneath it, and supplied with a
suitable amount of water from a short passage and a tap or valve in communication
with the water chamber.
The sponge wick or the like may be removed, and replaced or adjusted by
removing a small screwed cap or plug from the bottom of the socket or recess in
which the said sponge or wick is fitted.
In some cases however I propose to so form the opening or openings in the end
of the carbide chamber, and the bottom of such chamber, that the latter can rotate
in or on a valve seating provided with a port or ports leading from the water
chamber, and thus by partly rotating the said water chamber the admission of the
water to the carbide chamber can be effected, stopped or regulated.
Or other means may be devised for regulating or stopping the openings at the
bottom of the carbide chamber.
I, JAMES MAJOR, of 28,, Cannon Street,. Eccles, in the County of Lancaster,
Draughtsman, 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 :-
The object of this invention is to simplify and cheapen the construction of
acetylene gas lamps, and to provide a lamp which is very compact in form and
especially, suitable for attachment to cycles.

page_text: The construction of my improved acetylene gas lamp will be readily understood
on reference to the annexed sheet of drawings and the following explanation
thereof.
Fig. 1 on the drawing is a vertical sectional elevation of the improved lamp
constructed according to my invention, Fig. 2 is a front elevation of the same,
partly in section, and Fig. 3 is a plan view of the lid.
I propose in the first place to make the chamber a for containing the water, or
other re-actionary fluid, to surround the carbide chamber b in the lid c of which I
fit the gas burner d which may be of the form shown at Fig. 1 or of any other
suitable form.
The lid c of the carbide chamber is made in any convenient manner so as to be
readily removed; the drawing shows three inclined projections e fixed to the outside
of the lid c and three sliding bolts f carried by the water chamber a and I prefer
to fit inside the latter a perforated plate g and to fill the space between it and the
burner & with lightly pressed wool or other similar material, an india rubber ring
or washer x is placed between the lid and the top of the carbide chamber. The
combustion chamber h is carried on the lid c and acts also as a reflector, and in the
front thereof is fitted the lens i. A hole is made in the top part of the reflector at k
for the escape of the products of combustion, and also round the burner at l for the
admission of air.
The carbide chamber b is made open at the top so that it can be charged with
the carbide of calcium on removal of the lid c and it is provided with an opening
or openings at the bottom which may be fitted with a short piece of wick, sponge,
or the like fitted in a small socket or recess m beneath it and supplied with a
suitable amount of water from a short passage n provided with a tap or valve o
in communication with the water chamber a. I prefer however to dispense with
the sponge or wick and to fit the recess m with a vertical perforated tube p
reaching up to nearly the top of the carbide chamber b, and to surround the same
with a tubular cotton wick 9 or other absorbent material, and by preference I make
the valve o at one end of a screwed spindle ox, the other end of which passes
outside the socket m and is provided with a lever 7 for turning the same, the
spindle being made water tight by means of a leather washer and spring t.
In some cases however I propose so to form the opening or openings in the end
of the carbide chamber so that the latter can rotate in, or on, a valve seating
provided with a port or ports leading from the water chamber, and thus by
partly rotating the said water chamber the admission of the water to the carbide
chamber can be effected, stopped, or regulated; or other means may be devised
for regulating or stopping the opening or openings at the bottom of the carbide
chamber.
u (see Fig. 2) is a screw cap for filling the chamber a with water, and is fitted
with a small tube v for the admission of air to supply the place of the water as it
becomes used up; w (Fig. 1) is a bracket for attaching the lamp to a bicycle.
Having now particularly described and ascertained the nature of
invention and in what manner the same is to be performed I declare that what I
claim is:
my said
First. The improved acetylene gas lamp constructed and arranged substantially
as hereinbefore described and illustrated by the drawing annexed.
Secondly. I claim in such lamps the combination with a closed water chamber of
an internal carbide chamber surrounded by the former, and provided with an
externally actuated valve or tap for opening a communication between the two, the
carbide chamber being also provided with a closely fitting lid carrying the burner,
and the combustion chamber, reflector, and lens.
Dahin 6th day of Anil 1808
:
j
GEO. DAVIES & SON,
Agents for the Applicant, 4, St. Ann's 'Square, Manchester.