Improvements in Electroliers or Lamps of the kind chiefly employed and known as Extension or Floor Lamps, but applicable to other Lamps.
Year: 1894

page_text: Date of Application, 23rd May, 1894
Complete Specification Left, 14th Feb., 1895-Accepted, 30 h Mar., 1895
Improvements in Electroliers or Lamps of the kind chiefly employed
and known as Extension or Floor Lamps, but applicable to other
Lamps.
1, WILLIAM SOUTTER of the Firm of William Soutter and Sons, Farm Street,
Birmingham, Art Metal Workers, do hereby declare the nature of my said
invention to be as follows:-
The object of my invention is to provide a means of disposing the flexible cords
containing the twin conductors for wiring electric lamps, when such lamps are
carried upon or by a support the length of which may require to be varied.
occasionally.
The most usual case in which this requires to be done is in that kind of lamp
stand commonly known as a floor extension lamp.
In a floor extension lamp, whether electric or otherwise the upper part of the
stand, which carries the lamp or lamps, slides vertically in the lower part of
the stand.
When the lamp is at the proper height the two parts of the stand are clamped
together in a well known manner.
It is evident that if a lamp stand of the kind just described be wired for electric
lamps a means must be provided of easily taking up the slack of the flexible twin
cord which contains the conduction when the lamps are at any other than their
highest position.
My invention consists in the following manner of effecting this object.
I attach to the upper or sliding part of the lamp stand, one end of an elastic.
piece of india rubber and to the lower or fixed part of the lamp stand I attach the
other end of this piece of india rubber.
.
The india rubber is of such a length and section that it will bear stretching to as
great an extent as the sliding parts of the lamp stand will admit of, without injury.
to its substance.
I coil the flexible cord containing the twin conductors, around this india rubber
after the manner of a helical spring.
I make the connectious to the lamps and to the source of electric energy in any
of the well known methods suitable to the purpose.
It is evident that when the lamp or lamps are as near to the floor as possible the
piece of india rubber will be short and the coils of the flexible conductor will be
closely together.
If the lamp be raised the india rubber will be lengthened and the coils of the
flexible conductor will be farther apart both the india rubber and the flexible
conductor returning to their normal length and position if the lamp be again
lowered in position.
Although I have described my invention as applied to a floor extension lamp
I may, apply it to electroliers hanging from a ceiling or to brackets whether
horizontal or otherwise.
Trend 2-1 M 1904
THOS. KENDRICK,
3, Cherry Street, Birmingham, Agent.

page_text: COMPLETE SPECIFICATION.
Improvements in Electroliers or Lamps of the kind chiefly employed
and known as Extension or Floor Lamps, but applicable to other
Lamps.
1, WILLIAM SOUTTER, of the Firm of William Soutter & Sons, Farm Street,
Birmingham, Art Metal Workers, 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 to provide a means of disposing the flexible cords
containing the twin conductors for wiring electric lamps, when such lamps are
carried upon or by a support the length of which may require to be varied
occasionally.
The most usual case in which this requires to be done is in that kind of lamp
stand commonly known as a floor extension lamp.
In a floor extension lamp whether electric or otherwise the upper part of the
stand which carries the lamp or lamps, slides vertically in the lower part of
the stand..
When the lamp is at the proper height the two parts of the stand are clamped
together in a well known manner.
It is evident that if a lamp stand of the kind just described be wired for electric
lamps a means must be provided of easily taking up the slack of the flexible twin
cord which contains the conductor when the lamps are at any other than their
highest position.
My invention consists in the following manner of effecting this object.
I attach to the upper or sliding part of the lamp stand, one end of an elastic
piece of india rubber and to the lower or fixed part of the lamp stand I attach the
other end of this piece of india rubber.
The india rubber is of such a length and section that it will bear stretching to as
great an extent as the sliding parts of the lamp stand will admit of, without injury
to its substance.
I coil the flexible cord containing the twin conductors around this india rubber
after the manner of a helical spring.
I make the connections to the lamps and to the source of electric energy
of the well known methods suitable to the purpose.
in any
It is evident that when the lamp or lamps are as near to the floor as possible the
piece of india rubber will be short and the coils of the flexible conductor will be
closely together.
If the lamp be raised the india rubber will be lengthened and the coils of the
flexible conductor will be farther apart both the india rubber and the flexible
conductor returning to their normal length and position if the lamp be again
lowered in position.
Although I have described my invention as applied to a floor extension lamp
I may apply it to electroliers hanging from a ceiling or to brackets whether
horizontal or otherwise.
And in order that this my said invention may be more clearly understood I shall
now proceed to describe the same with the aid of the accompanying sheet of
drawings.
The same letters of reference denote the same parts in each figure where they
occur.
Fig. 1 is a view in elevation of parts forming the variable pillar and stand of a
floor extension lamp and electrolier and constructed according to my invention.
Fig. 2 is a view in elevation of said variable pillar detached and in section.
Fig. 3 is a view in elevation of said pillar in variable position also in section.

page_text: Fig. 4 is a view in elevation of said pillar in variable position and sectional upon
an enlarged scale.
a is the base or stand of a floor or extension lanp carrying the tubular parts bc
the former known as the outer tube and the latter the inner tube which supports
(not shown) the apparatus used in electrical lighting purposes.
The inner tube c slides in b vertically and when a desired height or position is
reached it is secured by the thumb screw d which compresses the inner tube c
against the outer tube b.
In the wiring of this lamp for electrical lighting and for taking up the slack of
the flexible twin cord which contains the conductor when the said cords are at a
position which is not the highest. My invention consists substantially of the
following
To the interior of the sliding tube c, at a convenient part I secure the one end
of an elastic cord or band of india rubber shown at e, while the other end of this
cord or band e is secured to the lower or fixed part b. fis the flexible cord which
contains the twin conductors, coiled around the elastic cord of india rubber e.
When the tube c (with its lighting appliances) is at the lowest part of b, e will be
short and the coils of the flexible cords f will be somewhat close together as
illustrated by Fig. 2, but if e is raised (with its lighting appliances) the elastic
cord e becomes elongated the coil of the flexible cords f are farther apart as
illustrated by Fig. 3, when c is again lowered in the coils off are brought to
their normal position effected by the power of e.
Although I have described and illustrated my invention as applied to an
electrolier or floor extension lamp as one of its purposes the same principle is
applicable to electroliers hanging from the ceiling and to brackets and other
electrical fittings for lighting. The connections to the fittings and to the source of
electric energy
I effect in any well known methods.
I would observe in conclusion that I do not limit myself to the precise details or
arrangement of parts, or to the india rubber cord e as the flexible cords f may be
coiled around other elastic or yielding cords or bands.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what I
claim is :-
In improvements in electroliers, such as lamps known as extension or floor lamps
and other electric lighting fittings.
1. The combination and arrangement of an elastic cord or band e to receive the
coiled flexible cords containing the twin conductor f substantially for the purposes
herein before described and illustrated by the accompanying drawings.
2. The general construction arrangement and combination of the several and
respective parts together forming my invention substantially as herein before
described in the foregoing Specification and illustrated by the accompanying sheet
of drawings.
Dated 13th February 1895.
THOS. KENDRICK,
3, Cherry Street, Birmingham, Agent.