Improvements in Galleries, Holders, or Supports for the Globes or Shades for Electric Lights and Gas Lamps, also applicable to Holders for Incandescent Lamps.
Year: 1891

page_text: Date of Application, 16th Dec., 1891
Complete Specification Left, 16th Sept., 1892-Accepted, 22nd Oct., 1892
PROVISIONAL SPECIFICATION.
Improvements in Galleries, Holders, or Supports for the Globes or
Shades for Electric Lights and Gas Lamps, also applicable to
Holders for Incandescent Lamps.
I VICTOR SILBERBERG, Manufacturer of 47 Oxford Street in the County of
London do hereby declare the nature of the said invention to be as follows:-
This invention has for its object to provide a gallery holder or support for the
globes or shades for electric lights and gas lamps which holder or support will be
capable of carrying shades or the like of various sizes and serve equally well
whether the diameter of the shade, where it joins the carrier or holder, is large or
small.
In carrying this invention into practice I provide three hinged arms attached by
any convenient means, either for incandescent lamps directly to the bracket, arm
fitting or the holder or to a sleeve screwed upon these latter.
One end of each arm is suitably bent so as to engage with the flange of the shade.
or a corresponding part of the globe or lamp. The other end of each arm forms a
cam upon which acts a nut provided on the fitting or bracket or on the sleeve
carrying the arms.
When this invention is to be used the nut (which may have wings like a thumb
nut) is screwed up or down on the fitting or sleeve and allow the hinged arms to
open out or to contract as required.
The arms may be so shaped as to embrace the shade globe or the like or they
may be arranged to expand within an aperture provided in the shade or the like.
Dated this 16th day of December 1891.
B. DUKES,
226, High Holborn, London, W.C., Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Galleries, Holders, or Supports for the Globes or
Shades for Electric Lights and Gas Lamps, also applicable to
Holders for Incandescent Lamps.
I, VICTOR SILBERBERG, of 47 Oxford Street, London, Middlesex, Manufacturer,
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 its object to provide a gallery holder or support for the globes
or shades for electric lights and gas lamps which holder or support will be capable
of carrying shades or the like of various sizes and serve equally well whether the
diameter of the shade where it joins the carrier or holder is large or small.
In carrying this invention into practice I provide three hinged arms attached by
any convenient means either directly to the bracket arm fitting or the holder or for
incandescent lamps to a sleeve screwed upon these latter..
One end of each arm is suitably bent so as to engage with the flange of the shade
or a corresponding part of the globe or lamp. The other end of each arm forms a
cam upon which acts a nut provided on the fitting or bracket or on the sleeve
carrying the arm.
When this invention is to be used the nut which may have wings or be a thumb
nut is screwed up or down on the fitting or sleeve and allows the hinged arms to
open out, or to contract as required.

page_text: The arms may be so shaped as to embrace the shade globe or the like or ther
may be arranged to expand within an aperture provided in the shade or the like.
On the accompanying drawings
Fig. 1 is an elevation and Fig. 2 is an inverted plan of my invention as applied
to holding the shade of an electric lamp ;
Fig. 3 illustrates a modification of the same and
Fig. 4 shews my invention as applied to holding an ordinary globe for a gas
light.
The same letters of reference indicate the same or corresponding parts in all the
figures of the drawings.
The three arms of the holder or support are marked respectively A' A* A* and
they are arranged at equal distances apart and jointed to the central part B which
is screwed on to or formed with the central boss C which may either form part of
the bracket arm fitting or part of the holder or be a sleeve for screwing upon the
fitting or holder. D is the nut screwed on the central boss C and arranged to act
upon the arms. When the arms A' A' A³ are required to embrace the neck of the
shade or globe E or the like their outer ends a arc curved inwardly and the nut D
is arranged outside the said arms (see Figs. 1, 2 and 4) so as to act upon those
ends a² of the arms which are formed as cams so that when the nut D is
screwed along the boss C in one direction the arms A' A' A³ are thereby forced
towards each other and grip the shade or globe as shewn by the full lines in
Figs. 1 and 4 and when the nut D is screwed along the boss C in the opposite
direction the arms A1 A2 A3 will open out from each other as shown by dotted
lines in Fig. 1 to allow of the globe or shade being removed. I prefer to provide
for each arm a spring such as f which acts upon the arms A' A² A³ and forces
them outwardly and prevents their dropping when the globe or shade is being
removed or replaced.
It will be seen that my invention is equally applicable either for holding a shade
(Fig. 1) inverted or for holding a globe (as a gas globe) by its base (Fig. 4). In
the latter case I prefer to make the outer ends a¹ of the arms divided as shewn in
Fig. 4 so as the better to support the said globe E.
When the arms A' A' A³ are required to hold the shade or globe or the like by
expanding within an aperture in the same the outer ends a¹ of the said arms are
bent outwardly to suit the inside of the shade or globe or the like (see Fig. 3) and
the nut D has to be arranged upon the central boss C within the arms so as when
moved in one direction to force them outwardly to engage with the shade or globe
or the like, and when the nut is moved in the other direction the arms will be free
to close towards each other to release the shade or globe or the like.
In conclusion I wish it to be understood that I do not limit myself to the precise
details and shapes of the arms shewn as the same may be varied without departing
from the nature of my said invention but,
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. In galleries holders or supports for the globes or shades for electric lights and
gas lamps and for incandescent lamps the use of three arms jointed to a central
stationary part and at their outer ends adapted to hold or support the globe or
shade in combination with a nut screwed on the central part and so arranged that
when the nut is turned in one direction the arms are thereby forced towards each
other to grip the shade or globe between them and when the nut is turned in the
other direction the arms are free to release the globe or shade substantially as
herein before set forth.
2. In galleries holders or supports for the globes or shades for electric lights and
gas lamps and for incandescent lamps the use of three arms jointed to a central
stationary part and at their outer ends adapted to hold or support the globe or
shade in combination with a nut screwed on the central part and so arranged that

page_text: when the nut is turned in one direction the arms are thereby forced from each
other to grip or hold the shade or globe and when the nut is turned in the other
direction the arms are free to release the globe or shade substantially as herein-
before set forth.
Dated this 15th day of September 1892.
CHARLES BOSWORTH KETLEY,
Agent for the Applicant.