Improved Portable Electric Search Light Apparatus.
Year: 1892

page_text: Date of Application, 20th Sept., 1892
Complete Specification Left, 20th June, 1893-Accepted, 22nd July, 1893
PROVISIONAL SPECIFICATION.
Improved Portable Electric Search Light Apparatus.
I, RONALD AUGUSTUS SCOTT, of Acton Hill, Acton, in the County of
Middlesex, Electrical Engineer, do hereby declare the nature of this invention to
be as follows:-
Electric search light projectors for military purposes have heretofore been
supplied with electricity from a dynamo electric machine driven by a steam or other
fluid pressure engine. With this arrangement however such projectors can only be
used within or near to forts or other protected places within which the electric
generating plant is placed, consequently the utility of such projectors is limited.
Now this invention has reference to improved portable apparatus comprising a
carriage with accumulators and electric search light projector the whole adapted to
be easily, quickly and safely transported so that it can be advantageously used as
may be required at places that may be at great distances apart.
The carriage is adapted to be drawn by horses or otherwise and is constructed
with suitable ways to support electric accumulators from which the projector is
supplied with electricity, the arrangement being such that the accumulators can be
easily and quickly placed in position upon and removed from the carriage without
liability of spilling the liquid contents thereof, and the projector being hinged or
pivotted in such a manner that when not in use and during transport it can upon
releasing a pin or catch be turned down into a convenient and safe position.
In some cases a telescope may be mounted upon the lantern of the projector.
To enable the accumulators to be connected and disconnected in an easy, rapid
and convenient manner their terminals are made as plug and socket or sliding
contacts so constructed and arranged that as the accumulators are being placed in
position upon the carriage they will become connected up in an automatic manner
and when the accumulators are being removed they will become automatically
disconnected the contacts sliding past each other and keeping themselves clean.
Dated this 20th day of September 1892.
W. LLOYD WISE,
Per F. J. Brougham,
46, Lincoln's Inn Fields, London, W.C., Agent for the Applicant.
COMPLETE SPECIFICATION.
Improved Portable Electric Search Light Apparatus.
I, RONALD AUGUSTUS SCOTT, of Acton Hill, Acton, in the County of
Middlesex, Electrical Engineer, 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:-
Electric search light projectors for military purposes have heretofore been
supplied with electricity from a dynamo electric machine driven by a steam or
other fluid pressure engine.
With this arrangement however such projectors can
only be used within or near to forts or other protected places within which the
electric generating plant is placed, consequently the utility of such projectors is
limited. Now this invention has reference to improved portable apparatus com-
prising a carriage with accumulators and electric search light projector, the
whole adapted to be easily, quickly and safely transported so that it can be.
advantageously used as may be required at places that may be at great distances
apart.

page_text: The carriage is adapted to be drawn by horses or otherwise and is constructed
with suitable ways to support electric accumulators from which the projector_is
supplied with electricity, the arrangement being such that the accumulators can be
easily and quickly placed in position upon and removed from the carriage without
liability of spilling the liquid contents thereof, and the projector being hinged or
pivotted in such a manner that when not in use and during transport it can upon
releasing a pin or catch be turned down into a convenient and safe position.
In some cases a telescope may be mounted upon the lantern of the projector.
To enable the accumulators to be connected and disconnected in an easy, rapid
and convenient manner their terminals are made as plug and socket or sliding
contacts so constructed and arranged that as the accumulators are being placed in
position upon the carriage they will become connected up in an automatic manner
and when the accumulators are being removed they will become automatically
disconnected the contacts sliding past each other and keeping themselves clean.
In the accompanying drawings,
Figs. 1, 2 and 3 are respectively a side elevation, a plan, and an end elevation
of so much of my improved portable electric search light apparatus as is
necessary to illustrate the nature of my invention.
Figs. 4 and 5 are elevations at right angles to each other illustrating two
accumulators with plug and socket connections according to this invention.
Fig. 3 is drawn to a larger scale than the remaining figures.
1 is a four wheeled carriage the floor and pivoted tail board 1ª of which are
provided with pairs of parallel guide ways 2 along which electric accumulators 3
can be caused to readily slide so that they can be easily and quickly placed in
position and removed without liability of spilling the liquid contents thereof.
4 is an electric search light projector, that may be of ordinary construction,
mounted upon a support 5 that is pivoted at 6 to the drivers seat 7. 8, 8 are
rotatable pins or catches which, when in the position shown, serve to retain the
support 5 in the position shown in full lines in Fig. 1 in order to hold the
projector in position for use, but which upon being partly turned round will
release the support and permit the projector when not in use and during
transport to be turned down into the position shown in dotted lines in the said
figure.
Each accumulator is provided at one side with a plug 8 and a socket 9
forming its terminals, these being arranged as shown so that when the accumulators
are being caused to slide along the ways 2 in a forward direction, the plug 8
on one cell will be caused to enter the socket 9 on the next most forward
accumulator so that the accumulators in each row will be electrically connected
together without any action on the part of the person or persons manipulating
the accumulators, and when the accumulators are being removed they will
become automatically disconnected, the contacts in each case sliding past each
other and keeping themselves clean. The plug 8 on the foremost accumulator
in each row may be arranged to enter a metal socket 10 fixed on the vehicle.
These sockets 10 may be arranged as shown so that the outer ones
adapted to be connected to the terminals of the lamp, and the intermediate ones 4
to connect the two intermediate rows of accumulators in series with each other
so that upon electrically connecting the sockets of the rearmost pair of
accumulators at each side of the longitudinal centre line of the vehicle, the
whole of the accumulators will be connected in series with each other and can,
by means of a suitable switch, be readily placed in circuit with the electric
lamp. As will be obvious however the rows of accumulators may if desired be
otherwise connected with each other and with the terminals of the lamp.
are
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1
Dantabl
1:14
3
with

page_text: accumulators and an electric search light projector, supplied with electricity from
said accumulators, the carriage being constructed with suitable guide ways to
support the electric accumulators and permit of their being easily and quickly
placed in position upon and removed from the carriage, and the projector being
hinged or pivoted in such a manner that when not in use and during transport,
it can upon releasing a pin or catch, be turned down into a convenient and safe
position substantially as described.
2. My improved, portable electric search light apparatus constructed and
arranged substantially as described and shown, the accumulators having their
terminals made as plug and socket or equivalent sliding contacts so constructed
and arranged that as the accumulators are being placed in position upon the
carriage, they will become connected up in an automatic manner, and when the
accumulators are being removed, they will become automatically disconnected,.
the contacts sliding past each other and keeping themselves clean as set forth.
Dated this 20th day of June 1893.
W. LLOYD WISE,
Per F. J. Brougham,
46, Lincoln's Inn Fields, London, W.C., Agent for the Applicant..