Improvements in Means for Supporting Electric Lamps and in Conductors therefor.
Year: 1889

page_text: Date of Application, 21st Aug., 1889
Complete Specification Left, 16th May, 1890--Accepted, 21st Aug., 1890
PROVISIONAL SPECIFICATION.
Improvements in Means for Supporting Electric Lamps and in
Conductors therefor.
ALBERT MCCANDLISH Central House, Bredbury, near Stockport in the County of
Chester, Electrical Engineer, do hereby declare the nature of this invention to be as
follows:-
To a permanent, or temporary magnet, there is attached an elastic medium, such
as springs made of metal or indiarubber, for arresting vibration to this elastic
medium is fixed or suspended the "electric" lamp.
"
In the case of a temporary magnet, the coils are of the same electrical "resistance
as the lamp, and are placed in electrical parallel connection with it; a button switch
is placed in the body of the support, which on being pressed with the finger, at will,
interrupts the current exciting the magnet, thus allowing of its removal to any other
position.
To preserve the conductor (from abrasion) which carries the electric current: it is
covered throughout its entire length with a closely wound, tempered, steel wire
spiral.
تيمم
1
1
1000
COMPLETE SPECIFICATION.
Improvements in Means for Supporting Electric Lamps and in
Conductors therefor.
ALBERT MCCANDLISH Central House, Bredbury, near Stockport, in the County of
Chester, 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 :-
This invention has for its object the combination of a magnet, and an
lamp," the magnet holding the lamp, on, or against surfaces of iron or steel.
" electric
To a permanent or temporary magnet; or a combination of both, (the poles of
which as marked D in the drawing, the outer casing being removed) there is attached
an elastic medium, such a springs C made of metal, or indiarubber, for arresting
vibration; to this elastic medium is fixed or suspended the "electric lamp" A, with
its holder B.
In the case of the temporary magnet part, the coils (or solonoids) E are placed in
electrical parallel connexion with the lamp circuit, and are made to offer the the same
electrical resistance to the current feeding it, as the lamp does when hot. In close
proximity to this magnet a button switch F is fixed; which button projects through
the casing, so as to be readily pressed with the finger, and in so-doing actuates the
spring, and contact piece H, which are fixed on insulating material &; this action
disconnects the magnet circuit, without in the least affecting the brilliancy of the
lamp; thus allowing of whole being removed to a new position; on releasing the
pressure on the button, the contact is remade automatically, and the magnet is again
excited.
The pole pieces of the magnet D project through the casing, and are so shaped as
to readily adopt themselves to any condition of surface, whether rough,. smooth,
concave, or convex.
To preserve the conducting wires from abrasion, they are covered throughout their
entire length with a flexible metallic sheathing, which is impervious to both gas and

page_text: water it being made of indiarubber tubing, surrounded by a spiral of metal wire 1.
Te conductors are connected with the terminals at G¹.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, 1 declare that what I
claim is :
1st. The supporting of an "electric lamp" by means of a magnet, on, or against
iron or steel surfaces.
2nd. An elastic medium placed between the lamp and its support, thus preserving
the filament from shocks.
3rd. The preserving of the conductors from abrasion, or faults, by covering them
with a flexible metallic sheathing, impervious to both gas and water.
Dated this 15th day of May 1890.
ALBERT MCCANDLISH.