An Improved Holder and Shade for Electric Glow Lamps.
Year: 1891

page_text: Date of Application. 15th Apr., 1891
Complete Specification Left, 8th Jan., 1892-Accepted, 13th Feb., 1892
PROVISIONAL SPECIFICATION.
An Improved Holder and Shade for Electric Glow Lamps.
I, CHARLES BARTER, Electrical Engineer, of Blockley, in the County of
Worcester, do hereby declare the nature of this invention to be as follows:-
The object of my invention is to provide a convenient holder, with a suitable
shade, for electric glow lamps, which may he placed on any suitable stand, or
inserted in any ordinary construction of candlestick.
The holder comprises a cylindrical piece of metal, wood, vulcanite, porcelain or
other suitable material, provided at the bottom with a spring or springs, so arranged
that when inserted in a candlestick (for example) the spring or springs serve to
keep the holder firmly therein, in a vertical position. The upper part of the holder
is tubular for a short distance down-at least-with two communicating holes, one
on each side, preferably formed in a downward direction. These are intended for
the two conductors for the lamp, which, entering one on each side from below, pass
into the central hole to the top, and connect in any convenient manner with the
terminals of the lamp. While the said holder may be made of metal, as stated
above, it is preferred to make the upper portion, or the whole of it, of a non-con-
ducting material, to avoid short circuiting of the lamp.
The upper portion of the holder is either reduced in diameter, or made with n
shoulder, in order to carry a dise having three arms of wire to support a lamp shade.
In some cases the holder is prolonged through the disc, with a screw thread, for
the purpose of engaging with any special holder or fitting employed to carry the
glow lamp used; or it may be otherwise formed to suit any other kind of fitting or
connection. For example, the disc itself may be screwed upon the prolongation of
the holder and supporting springs may start from the disc to carry the lamp, while
hooks, suitably insulated may be arranged to make electrical connection with the
platinum terminals of the glow lamp.
Tnd his 11h day of il 1901
FAIRFAX & WETTER,
433, Strand, London, Agents for the Applicant.
COMPLETE SPECIFICATION.
An Improved Holder and Shade for Electric Glow Lamps.
1, CHARLES BARTER, Electrical Engineer, of Blockley, in the County of
Worcester, do hereby declare the nature of my 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 convenient holder, with a suitable
shade, for electric glow lamps, which may be placed on any suitable stand, or inserted
in any ordinary construction of candlestick.
The holder comprises a cylindrical piece of metal, wood, vulcanite, porcelain or
other suitable material, provided at the bottom with a spring or springs, so arranged
that when inserted in a candlestick (for example) the spring or springs serve to keep
the holder firmly therein, in a vertical position. The upper part of the holder is
tubular, for a short distance down, with two communicating holes, one on each side,
preferably formed in a downward direction. These are intended for the two co-
ductors for the lamp, which, entering one on each side from below, pass into the
central hole to the top, and connect in any convenient manner with the terminals of
the lamp; or I may use a single hole only.

page_text: In the further description of the invention, reference is made to the accompanying
drawings, in which
Fig. 1 is an elevation of a candlestick with my improved holder and shade
mounted thereon, and
Fig. 2 is a section through the holder, drawn to an enlarged scale.
In the socket of the candlestick a is fitted my improved spring holder & turned
out of wood, in tal, or other suitable material. Three springs, c, are secured by
screws d, d to the holder in a vertical manner, so that the springs will fit into varying
sizes of candlestick sockets and remain firmly in place. A conical shoulder e is
turned upon the spring holder just above the top of the springs to rest on the top
of the socket a, and which determines the depth of its insertion therein. The spring
holder is prolonged upwards in two stages and respectively, both of which are
axially bored from the top to receive the conducting wires for the lamp. The
lower stage of the holder bis the largest in diameter and is drilled transversely from
one or both sides to communicate with the axial hole, the transverse hole or holes
being preferably inclined upwards, or the edge of each hole countersunk to avoid
chafing or cutting the insulating covering of the conductors h. The upper stage g
of the spring holder is about one half the diameter of the stage beneath it, and
it has a thread cut upon it to engage with any required lamp holder; in this case,
"Ediswan" lamp holder. The difference in diameter between the
stages and g leaves a shoulder adapted to receive a flat plate or disc j and to this,
wire arms are secured by soldering or otherwise. In the drawing, two arms kare
shown as secured to an oval plate, but three arms may be secured to a circular
plate instead, if required.
shown as an
l
The arms extend upward to carry a ring on which is hung an ornamental
lamp shade or reflector m placed above the top of the lamp, and adapted to throw
the light downward. The lamp holder is screwed down upon the plate, on the
shoulder, (after the connections have been made), so as to hold the plate and the
shade m firmly in position, and the glow lamp nis mounted in its holder i in
the well known manner.
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:-
An improved portable holder and shade fitting for carrying a glow lamp upon a
candlestick or similar stand, comprising a holder having springs c to secure the
fitting within the socket a of the said stand, axial and outer communicating holes
for the conductors, and adapted to carry a shade support by clamping a platej upon
a shoulder by means of the lamp holder i, substantially as herein described and
shown by the drawings.
Dated this 6th day of January 1892.
FAIRFAX & WETTER,
433, Strand, London, Agents for the Applicant.