Improvements in Reading Lamps for use in Railway and other Carriages.
Year: 1892

page_text: Date of Application, 22nd Sept., 1892
Complete Specification Left, 8th Oct., 1892-Accepted, 19'h Nov., 1892
PROVISIONAL SPECIFICATION.
Improvements in Reading Lamps for use in Railway and other
Carriages.
I, VINCENT GROOM of Oaken, Wolverhampton, in the County of Stafford,
Gentleman do hereby declare the nature of my said invention to be as follows:-
My invention has for its object improvements in reading lamps for use in railway
and other carriages by which such lamps may be readily fixed in a convenient
position without difficulty and at the same time be cheaper to manufacture than
those at present in use.
In carrying my invention into effect I form a collapsing tube or rod of two
pieces having the division in the centre the one half of the tube being made to
enter the other the inner half having a screw thread which enters a tapped bush in
the outer tube so that by screwing the one tube into the other the length is
extended or reduced in length. At each end of the rod a small spike is attached so
that upon the rod being extended between the sides of the carriage window it is
thus fixed and upon this rod the socket for coutaining the candle is clipped and has
a projecting arm which bears against the window and thus prevents the candle from
overbalancing. A rising socket may be formed inside the candle socket so as to
raise the candle by a button when burning low.
In place of having the rods to be operated by means of the screw arrangement
I may have it secured by means of a ratchet and pawl the rack or ratchet being
formed on the one tube and the catch or pawl on the other and at each end of this
rod I provide a spring which would bear against the sides of the window and upon
the rod being distended would retain it in position.
The rod may be so arranged as to be fixed in a vertical position in which case
the spikes or springs would be fixed between the top and bottom of the window and
the clip on the candle socket would be so arranged as to clip the rod in its vertical
position. Any number of candles may be hung from the one rod.
Dated this 21st day of September 1892.
GEORGE BARKER,
77, Colmore Row, Birmingham, Agent.
COMPLETE SPECIFICATION.
Improvements in Reading Lamps for use in Railway and other
Carriages.
I, VINCENT GROOM of Oaken Wolverhampton in the County of Stafford
Gentleman 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 :-
My invention has for its object improvements in reading lamps for use in railway
and other carriages by which such lamps may be readily fixed in a convenient
position without difficulty and at the same time be cheaper to manufacture than
those at present in use.
In carrying my invention into effect I form a collapsing tube or rod of two
pieces having the division in the centre the one half of the tube being made to enter
the other the inner half having a screw thread which enters a tapped bush in the
outer tube so that by screwing the one tube into the other the length is extended
or reduced. At each end of the rod a small spike is attached so that upon the rod

page_text: being extended between the sides of the carriage window it is thus fixed and upon
this rod the socket for containing the candle is clipped and has a projecting arm
which bears against the window and thus prevents the candle from overbalancing.
A rising socket may be formed inside the candle socket so as to raise the candle
by a button when burning low.
In place of having the rods to be operated by means of the screw arrangement
I may have it secured by means of a ratchet and pawl the rack or ratchet being
formed in the one tube and the catch or pawl on the other and at each end of this
rod I provide a spring which would bear against the sides of the window and upon
the rod being distended would retain it in position.
The rod may be so arranged as to be fixed in a vertical position in which case
the spikes or springs would be fixed between the top and bottom of the window and
the clip on the candle socket would be so arranged as to clip the rod in its vertical
position. Any number of candles may be hung from the one rod.
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 fully illustrated the nature of my said improvements.
Figure 1 is a view of the interior of a carriage window with one of my carriage
lamps applied thereto.
Figure 2 is an enlarged elevation of one form of my invention.
Figure 3 is a sectional elevation through Figure 2 on line 1-2.
Figure 4 is a sectional elevation through Figure 2 on the line 3-4.
Figure 5 is a section through the candle socket.
Figure 6 is a plan of Figure 5.
Figure 7 is a view shewing a modification.
Figure 8 shews a modification in the spring end.
I provide a collapsing tube or rod of two pieces A and A¹ the one half A' being
formed to enter the other and provided with the screw thread a² which engages
with the tapped bush a³ formed within the inside of the outer tube A and at each
end of the divided tube the disc a is provided having serrated edges aⓇ and provided
with the spike a so that upon the tube or bar being placed between the sides B of
the carriage window W and expanded by means of turning the one part the tube
out of the other until the spikes a have sufficiently entered the sides of the window
to retain it in position upon this rod A the socket D is mounted by means of the
clip d' which is sprung upon the tube after it has been fixed in any suitable position
and is kept steady and in a vertical position by the arm 1 may modify the means
for securing the rod in its extended form as for instance I may form apertures or
nicks a in the inner tube A and the spring catch a to the outer tube A¹ so that
upon the tubes being extended the catch engages with one of the apertures a and
retains the rod in its extended condition or I may have a solid rod of square round
or other section as shewn in Figure 8 in which case I may provide springs such
as a at the end of the bar for bearing against the sides of the window or as shewn
in Figure 8 in which spiral springs a¹o are used which are secured in the socket
ends of the bar and which are provided with spikes for attachment to the sides of
window.
I may make the rod of springy material for springing in between the sides E of
the window and having spikes at the end or I may provide a coiled spring in one
half of the tube and which would expand and press out the inner tube during the
time it was lodged between the sides of the windows by spikes at each end. In
place of hanging a candle socket on to the rod I may hang on any suitable lamp in
a similar manner.
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 reading lamps for use in railway and other carriages

page_text: consisting of the adjustable bar or tube substantially as and for the purpose herein
set forth & shewn upon the accompanying drawings.
Dated this 6th day of October 1892.
GEORGE BARKER,
77, Colmore Row, Birmingham, Agent.