Improvements in Lamps which Generate Gas from Oil.
Year: 1891

page_text: Date of Application, 6th Oct., 1891-Accepted, 14th Nov., 1891
COMPLETE SPECIFICATION.
Improvements in Lamps which Generate Gas from Oil.
I, ARTHUR SCOTT of Mitchell Street Newton Heath in the County of
Manchester Mechanical Engineer and Manufacturer, 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 :-
My present invention relates to certain improvements in what are generally
known as outside industrial oil lamps the said lamps being arranged with apparatus
for mixing air with oil at a pressure and allowing the said mixture to pass through
a vaporising chamber and the gas so generated to issue from a nozzle or burner
in order to give a brilliant light and my said improvements have reference to the
burners, the vaporising chambers, and pump handles of such lamps and also in the
application of an extra cock or screw down valve for the special purpose hereinafter
specified.
My improvements will be readily understood by reference to the accompanying
sheet of drawings in which
Fig. 1 is an elevation partly in section of my improved lamp and Fig. 2 is a
plan of vaporiser or burner of said lamp.
Fig. 3 is an enlarged sectional elevation of my improved nozzle or burner of
said lamp.
Similar letters of reference denote corresponding parts in each figure.
The vaporiser A can be arranged either vertically as shown to suit an upright
light or at any angle; it consists of two cylinders b and c respectively which may
be either conical, tapered or parallel as preferred.
The cylinder & fits over the cylinder 6 and the latter is made with a fast flange o¹
and a screw flange or nut c³ it is corrugated or arranged with annular rings or
steps so as to form a number or series of annular spaces c³.
The said outer cylinder C is preferably plain and is held in position by
the nut c*.
The oil and air passes up the usual pipe D and round the annular spaces c³ in
the vaporiser or generator A passing from one annular space to the other
through suitable openings or spaces c made on the outer periphery of each corruga-
tion or annular ring or step so that the oil is fully vaporised before it arrives at
my improved burner E.
The flame from the burner being arranged to pass through the centre of the
vaporiser in the usual manner.
My improved burner E is arranged as shown on enlarged scale at Fig. 3 that is
to say it is composed of two parts a perforated nozzle part e¹ and a screw cap e
the latter being arranged with a hole for the escape of the gas.
It will be obvious that by screwing the cap one way or the other the supply
of gas may be regulated and in order to turn the light out it is only necessary to
turn the cape so that it will cover or close up the perforations in the nozzle e'
entirely.
Referring to the pump handle G instead of arranging the same in the usual
manner so as to require a direct pull with one or both hands I arrange it with a
toggle at F which oscillates with the movement of the handle G thereby consider-
ably reducing the labour hitherto required when working such pumps arranged with
direct pulling handles.
In lamps arranged and constructed as hitherto a leakage past the pump bucket
or piston when the leathers become worn or defective is a frequent cause of
considerable waste that is to say the pressure which has been pumped up in the
receptacle H escapes past the pump piston and although back pressure wing or

page_text: disc valves have been introduced to prevent such leakage such valves have been
found to soon clog with the oil used, thereby becoming of no use for the purpose
stated in order therefore to completely prevent any such waste I have introduced
a screw down valve or cock J which can be closed as soon as pumping ceases 80
that any pressure passing by the pump bucket is prevented from escaping from
the receptacle H as will be well understood.
Referring again to the vaporiser A it will be seen that the corrugations or steps
present a larger heating surface to the action of the flame and also when the said
vaporiser requires cleaning this can be accomplished easily and expeditiously by
merely screwing off the flange or nut c³ and removing the outer cylinder C.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is :-
1. A vaporiser or generator composed of an outer and inner cylinder the inner
cylinder being corrugated or formed with annular steps so as to form annular
spaces between the said inner and outer cylinders substantially as described and
used for the purpose stated.
2. In lamps which generate gas from oil the use of a pump handle arranged with
a toggle F substantially as described and illustrated.
3. In a lamp which generates gas from oil the use of a burner composed of a
perforated nozzle e and a screw cap arranged and operated substantially in the
manner described and shown at Fig. 2 of the accompanying drawings.
4. The addition of a screw down valve or cock J so as to prevent any escape
of pressure from the pump when the piston leather is defective substantially as
described and illustrated and used for the purpose specified.
Dated this 5th day of October 1891.
H. F. BOUGHTON, M.I. Mech. E.,
Sheffield and Barnsley, Agent for the Applicant.