Improvements in Signalling and other Lamps.
Year: 1893

page_text: Date of Application, 3rd Oct., 1893
Complete Specification Left, 3rd July, 1894-Accepted, 4th Aug., 1894
PROVISIONAL SPECIFICATION.
Improvements in Signalling and other Lamps.
I GEORGE POLKEY, of Hockley Lamp Works, Pitsford Street, Hockley,
Birmingham, in the County of Warwick, Lamp Manufacturer, do hereby declare
the nature of my said invention to be as follows:-
The object of my invention is improvements in signalling and other lamps.
Signalling lamps such as those used for army lamp signalling generally have not
hitherto had any means for attending to the burner without opening the lamp.
My invention is intended to not only supply such means but to also have the effect
of locking the oil reservoir in its position in the following manner :-
At the side of the lamp, by preference the right side when the lamp is held in
the left hand, I provide a plunger having a thumb screw outside and sliding in a
socket formed upon the casing. The inside end is supplied with a socket, a spiral
spring being fixed over the neck of the socket and abutting against the lamp inside
and the socket itself. This socket has a square or other equivalent hole which fits
upon the square neck of a spindle which runs parallel along the face of the burner
and which is provided with the usual means for elevating and depressing the wick.
The tendency of the sliding part of the locking gear is to always press upon the
square end of the rack spindle, so that the oil reservoir is always kept firmly in
position. When these lamps are fitted with my self-striker fixed horizontally to
the wick they can be both lighted and operated conveniently without opening the
lamp anywhere which is a very great advantage.
Dated this 2nd day of October 1893.
GEORGE BARKER,
77, Colmore Row, Birmingham, Agent.
COMPLETE SPECIFICATION.
Improvements in Signalling and other Lamps.
I, GEORGE POLKEY, of Hockley Lamp Works, Pitsford Street, Hockley,
Birmingham, in the County of Warwick, Lamp Manufacturer, do hereby declare
the nature of my said 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 my invention is improvements in signalling and other lamps.
Signalling lamps, such as those used for army lamp-signalling generally, have not
hitherto had any means for raising & lowering the wick or adjusting the burner
without opening the lamp. My invention is intended to not only supply such
means but to also have the effect of locking the oil reservoir in its position, in the
following manner :-
At the side of the lamp, by preference the right side when the lamp is held in
the left hand, I provide a plunger having a thumb-screw outside and sliding in a
socket formed in the casing. The inside end is supplied with a socket, a spiral
spring being fixed over the neck of the socket and abutting against the lamp
inside and the socket itself. This socket has a square or other equivalent hole
which fits upon the square neck of a spindle which runs parallel along the face of
the burner and which is provided with the usual means for elevating and depressing
the wick. The tendency of the sliding part of the locking gear is to always press
upon the square end of the rack spindle, so that the oil reservoir is always kept
Price 8d 1

page_text: firmly in position. When these lamps are fitted with my self-striker, fixed
horizontally to the wick they can be both lighted and operated conveniently
without opening the lamp anywhere which is a very great advantage.
In order that my invention may be clearly understood and more easily carried
into practice I have appended hereunto a double sized sheet of drawings upon
which I have shown my improvements applied to a signalling lamp.
Figure 1., is a sectional plan through a signalling lamp.
Figure 2., is a vertical sectional elevation through the same lamp but shewing
the spindle disconnected.
Figure 3., is a similar part view to Figure 2 but showing the spindle connected.
In carrying my invention into effect I mount the sliding spindle A in the side of
the lamp B the socket being formed in the body of the lamp so as to receive the
said spindle which is provided on the outside of the lamp with the thumb head a
and on the inside with the enlarged end a the coiled spring C being placed
intermediately between the socket end a and the socket in the lamp B so as to
operate upon the plunger end a² and retain it in the position shown by Figure 3.
This plunger end a² is provided with the square or other equivalent socket a³
which is made to fit the head d' of the spindle D by which the wick H is raised
or lowered by the ordinary means. The tendency of the sliding part A is to
always remain locked with the rack spindle but for removing the oil vessel E which
is withdrawn in the direction of the arrow. The plunger A is drawn back as
shown by Figure 2 thus allowing the vessel E to be withdrawn and by these means
the wick can be raised or lowered without opening the lamp and in conjunction
with my self striker F the lamps can be both lighted and operated without in any
way opening the lamp.
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 :-
The improvements in signalling and other lamps consisting of the mode of and
means for operating the burner without opening the lamp, substantially such as
.herein set forth and shown upon the accompanying drawings.
Dated this 2nd day of July 1894
GEORGE BARKER,
77, Colmore Row, Birmingham, Agent for Applicant.
GEORGE BARKER,
77, Colmore Row, Birmingham, Agent for Applicant.