Improvements in Galleries or Holders for Holding Globes or Shades of Electric and other Lamps.
Year: 1891

page_text: Date of Application, 15th May, 1891
Complete Specification Left, 5th Feb., 1892-Accepted, 2nd Apr., 1892
PROVISIONAL SPECIFICATION.
Improvements in Galleries or Holders for Holding Globes or Shades
of Electric and other Lamps.
I ELIZABETH WHITEHEAD Wife of John Whitehead 42 Anglesey Street,
Lozells City of Birmingham in the County of Warwick, do hereby declare the
nature of this invention to be as follows:---
My invention has reference, as hereinafter described to the construction of
galleries or holders for holding various kinds of globes or shades used in connection
with incandescent electric lamps but may be applied to any kind of oil or gas
lamps.
In the construction of ordinary galleries for holding various kinds of globes or
shades, a screw or spring arrangement is used for the purpose of connection, which
necessitates a considerable amount of labour, and causes breakages of the globes or
shades.
By my invention the globe or shade to an incandescent electric lamp can be
attached instantaneously, and is securely held in its place.
I apply my invention. to an incandescent. electric lamp in the following
manner :-
-
I take a square blank of sheet metal having four rectangular slots, or under-
cuts then attach the said blank to the insulator on the top of the lamp. Into
the four slots I connect by a link in the form of a hinge joint, four depending
rods, their extremities terminating in hooks at right angles to the rods and forming
a kind of claw. Between the said rods 1 place a disc of metal having an orna-
mental conical shaped flange to which I attach four loops forming guides through
which passes the four depending rods aforesaid.
The conical shaped guide with the loops attached are capable of sliding upwards
and downwards on the depending rods, thus expanding or contracting them. The
said depending rods which form a claw in their expanded position are in the form
of a cone and when contracted they are more or less vertical.
When it is desired to connect the globe or shade to my improved gallery or
holder, which is attached to an incandescent lamp, the lamp is slightly raised
which causes the conical guide to slide down the depending rods causing them
to collapse or close upon their hinged joints, the globe or shade is then placed
over the lamp and the lamp lowered to its normal position, which takes with it.
the conical guide, the movement upwards of which causes the depending rods to
open outwards inside the globe or shade, the bent parts of their extremities clipping'
the inner flange of the said globe the weight thereof keeping the depending rods,
expanded which firmly and securely holds the globe in its place.
In lieu of using a conical shaped guide for the purpose of opening and closing
the gallery or holder, may employ a disc of sheet metal having four teats or
notches on its periphery which engage in four slots on the depending rods, and
operate them in the manner before described. The disc being attached to the
top of the gallery or to the top of the lamp by a telescopic tube. Or instead of
bending the ends of the depending rods to form the claw, I may attach india-
rubber, gutta-percha, or cork discs for the same purpose.
My invention may be applied to any form of globe or shade used in connection
with gas lights or oil lamps by slightly modifying the various parts herein before
described.
1
RAYNER & CASSELL,
37, Chancery Lane, London, W.C., Agents for the Applicant.

page_text: COMPLETE
SPECIFICATION.
Improvements in Galleries-or Holders for Holding Globes or Shades:
of Electric and other Lamps..
1, ELIZABETH WHITEHEAD, Wife of John Whitehead, 42 Anglesey Street,
Lozells, City of Birmingham in the County of Warwick, 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 :-
My invention has reference as hereinafter described to the construction of
galleries or bolders, for holding various kinds of globes or shades and is more
particularly useful for globes or shades used in connection, with incandescent
electric lamps but may be applied to any kind of oil or gas lamps.
In the construction of ordinary galleries for holding various kinds of globes or
shades a screw or spring arrangement is used for the purpose of connection, which
necessitates a considerable amount of labour and causes breakages of the globes or
shades.
By my invention the globe or shade to an incandescent electric lamp can be
attached instantaneously and is held securely in its place.
I apply my invention to an incandescent electric lamp in the following
manner:-
I take a blank of sheet metal having a series of rectangular slots or undercuts
1 then attach the said blanks to the insulator or the top of the lamp. Into the slots
1 connect by a link in the form of a hinge joint, depending rods, their extremities
terminating in a kind of claw. Between the said rods place a disc of metal
having an ornamental conical shaped flange, provided with loops, forming guides,
through which pass the depending rods aforesaid. The said depending rods, which
form a claw in their expanded position, are in the form of a cone, and when
contracted by sliding upwards through the conical guide they are more or less
vertical.
When it is desired to connect the globe or shade to my improved gallery or
holder, which is attached to an incandescent lamp, the gallery is slightly raised
which causes the depending rods to slide up the conical guide and turn on their
hinged joints and approach each other. The globe or shade is then placed over
the lamp and the gallery lowered to its normal position, the guide causing the
depending rods to open outwards inside the globe or shade, the lower parts of their
extremities clipping the inner flange or sides of the said globe, the weight thereof
keeping the depending rods expanded, which firmly and securely holds the globe
in its place, I also provide a set screw which I attach to the top of the holder for
more securely holding or fixing the said globe in any desired position.
In lieu of using a conical shaped guide for the purpose of opening and closing
the gallery or holder I may employ a disc of sheet metal having teats or notches
on its periphery which engage in slots on the depending rods and operate them
in the manner before described. The disc being attached to the top of the lamp
by a telescopic tube.
1 may use any number of depending rods for the purpose herein set forth.
Or I may attach india-rubber, gutta-percha or cork discs to the ends of the
depending rods.
My invention may be applied to any form of globe or shade used in connection
with gas lights or oil lamps by slightly modifying the various parts hereinbefore
described.
I will now proceed to describe with reference to the accompanying drawings the
manner in which my invention may be performed.
Figure 1, represents an incandescent electric lamp with my improved gallery
holder attached connecting the globe or shade to the lamp.
or
Figure 2, represents the same lamp with the globe or shade detached from the
lamp.

page_text: Figures 3, 4 and 5, are detail views.
Figure 3, shows an hexagonal blank having six rectangular slots a which I connect
to the tube at the top of the lamp & Figures 1 and 2.
b
Figure 5, shows one of the depending rods e detached from the hexagonal blank.
Figures 1 and 2 show the depending rods c connected to the hexagonal blank a
by the hinge joints d and passing through the holes e on the conical shaped
guide which is attached to the tube 2, forming a kind of claw for holding the
globe or shade in position over the lamp, which can be readily detached from the
lamp by slightly raising the globe or shade and the tube & with plate a and rods c
thus causing the rods c to approach each other, by means of the conical shaped
guide which remains stationary.
The set screw m may be used for fixing the depending rods in any desired
position by tightening the tube in the tube k.
Figure 6, represents a modification of my improved holder in which I use a
disc instead of the conical shaped guide for operating the depending rods c.
Figure 7, represents another modification of my improved holder in which I use
a disc having a series of teats f. which work in the slots y formed in the depending
rods and are operated in the same manner as in Figures 1 and 2.
g
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
A holder for the shades of lamps comprising a number of rods, hinged to a plate
sliding on the tube 3, at equal distances from the centre, and a fixed guide by
means of which the hinged rods are actuated substantially as described and shown
in the accompanying drawings.
Dated this 5th day of February 1892.
RAYNER & CASSELL,
37, Chancery Lane, London, W.C., Agents for the Applicant.