Improvements in Railway Carriage and other Ceiling Lamps.
Year: 1891

page_text: Date of Application, 23rd Sept., 1891
Complete Specification Left, 11th July, 1892-Accepted, 13th Aug., 1892
PROVISIONAL SPECIFICATION.
Improvements in Railway Carriage and other Ceiling Lamps.
I, ISAAC JOHN COLLINS, of The Lamp Manufacturing Company, No. 45 City
Road in the County of London, Lamp Manufacturer, do hereby declare the nature
of this invention to be as follows:-
This invention relates to ceiling lamps such as are employed for lighting railway
carriages, and has for its object to facilitate their charging, trimming and lighting.
The lamp proper consisting of the cylindrical oil reservoir surmounted by the air
cone, is held by a bayonet catch within a cylindrical casing presenting an annular
air space around the reservoir, this space communicating by two lateral tubes with
suitably guarded air inlets above the roof of the carriage. The passage of the air
to the flame through the space surrounding the reservoir serves to keep it cool
Under the casing is a hinged cover which can be opened by a key, giving access to
a button or knob, by turning which the wick can be raised or lowered. Also, this
cover being opened, the lamp itself can be turned partly round, so as to disengage
the bayonet catch, and then can be withdrawn downwards to be charged or trimmed.
Above the lamp is a reflector and suitably wind guarded chimney which can be
withdrawn through the roof giving access to the lamp from above. A cylindrical
or approximately cylindrical glass rests by its lower edge on the cylindrical casing
of the lamp, and extends up to the reflector above.
Dated this 23rd day of September 1891.
ABEL & IMKAY,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Railway Carriage and other Ceiling Lamps.
I, ISAAC JOHN COLLINS, of The Lamp Manufacturing Company Limited, of
12 Leonard Street, City Road, in the County of London, late of 45 City Road in
the said County, Lamp 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 :-
This invention relates to ceiling lamps such as are employed for lighting railway
carriages and has for its object to facilitate their charging, burning, and lighting.
The accompanying drawing is a vertical section of the lamp casing according to
this invention. The lamp proper consisting of the cylindrical oil reservoir A
surmounted by the air cone B, is held by bayonet catches within a cylindrical
casing C presenting an annular air space D around the reservoir communicating by
two lateral tubes E with suitably guarded air inlets F above the roof of the
carriage. The passage of the air to the flame through the space D surrounding the
reservoir serves to keep it cool. Under the casing is a hinged cover G which can
be opened by a key giving access to a button or knob K by turning which the wick
which is connected to K by gearing H can be raised or lowered. Also, the cover G
being opened, the lamp A can itself be turned partly round so as to disengage the
bayonet catches and then can be withdrawn downwards to be charged or trimmed.
Above the lamp is a reflector L and suitably wind guarded chimney M which can
be withdrawn through the roof giving access to the lamp from above. A cylindrical
or approximately cylindrical glass N rests by its lower edge on the cylindrical
casing C and extends up to the reflector L above.

page_text: Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim is:
A railway carriage or ceiling lamp having under an approximately cylindrical
glass a cylindrical casing containing the oil reservoir and wick, this casing
presenting round the reservoir an annular space supplied with air from guarded
inlets above, and the casing being provided with a hinged cover below it, by
opening which access is given to raise or lower the wick and to remove or replace
the lamp proper, substantially as described.
Dated this 25th day of June 1899
ABEL & IMRAY,
Agents for the Applicant.