Improvements in Winches and Posts suitable for Electric Light Lanterns.
Year: 1896

page_text: Date of Application, 18th Dec., 1896-Accepted, 30th Jan.. 1897
COMPLETE SPECIFICATION.
Improvements in Winches and Posts suitable for Electric Light
Lanterns.
I, THEODOR PETERSEN, Assistant Manager of Callender's Cable and Construction
Co. Ld., of 90 Cannon Street, in the City of London, 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 a winch which can be placed inside the foot of a lamp post
and be employed for raising and lowering an electric light lantern.
Figure 1 is a vertical section on the line 1-1 Figure 2, and Figure 2 is a vertical
section on the line 2-2 Figure 1. Figure 3 is a sectional plan.
a is a lamp post and a a door in it. b and c are two barrels carrying spur
wheels b c gearing with each other. These barrels are put into place through the
door a' and their spindles are then put in through holes in the sides of the
lamp post and are secured to the barrels by screws c. 6 is a collar fixed to
the spindle b' to prevent endway movement.
The end of the spindle 6 is square and is covered by a cap a whilst the hole
through which the spindle is passed is closed with a screw plug a.
d is an insulated cable containing the conductors leading to and from the lamp
its end is fixed to the barrel c as shewn in Figure 1 the ends of the conductors d¹
being secured to terminals (one only of which is seen) connected by metal strips d³
to conducting rings d in grooves in a vulcanite drum de fixed on the spindle c.
ee are contact making springs electrically connected to the conductors of the main
and bearing on the rings d. f is a wire or other rope (wound on the barrel b) by
which the lamp is suspended. g is a pawl taking into the teeth of the wheel b'.
When it is desired to lower the lamp the cap a' is removed and the handle put
on the square end of the spindle b*.
The door a' is then opened and the pawl g thrown out of gear the handle meanwhile
being held by the operator.
On turning the handle the lamp will be lowered by the wire rope unwinding.
The twin cable being also unwound at the same time and speed the lamp is still
kept in the circuit and can be trimmed and tested on the ground level. The wire
rope and twin cable are kept from fouling at the top of the post by being carried over
separate pulleys on the same spindle.
To raise the lamp the operations are reversed. A switch may be fixed in the
post so that when required the lamp may be cut out of circuit.
The wire rope is one inch or more shorter than the twin cable so that the
weight of the lamp never comes on the electric conductors.
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:-
1. The combination of the barrels b c and wheels b' e' substantially as described.
2. The means for conveying the current to the cable on the barrel e substantially
as described.
3. The combined lamp post and winch substantially as described and shown in the
drawings.
Dated this 18th day of December 1896.