An Improved Electric Globe Gallery and Shade Holder.
Year: 1891

page_text: Date of Application, 11th Sept., 1891
Complete Specification Left, 13th June, 1892-Accepted, 30th July, 1892
PROVISIONAL SPECIFICATION.
An Improved Electric Globe Gallery and Shade Holder.
JOHN- WHITEHEAD;-- of 42, Anglesey. Street, Lozells,. Birmingham, in the
County of Warwick, Inventor and Patentee, do hereby declare the nature of this
invention to be as follows:-
-
This invention relates to gallerys for holding globes and shades of electric and
other lamps, either in a vertical or other position. To carry out this my.invention
I proceed as follows. Inside the metal coronet, which usually forms the ornament
or cover, for the top of an electric globe, I first fix by soldering, rivetting or other-
wise, a plain or perforated metal plate or disc, or any other suitable arrangement,
upon a rim, flange, or bearing, inside the coronet, and about half an inch from the
bottom edge, then upon this disc or plate, I fix by rivetting or otherwise so. as to
turn as on a pivot or joint, one, two, or three, or more quadrants, which are.toothed
as a cog wheel, attached to each of these quadrants, is a projecting arm, bent in
such a manner, as to enter the inner part of the top of the electric globe.
The extending of these arms will then be actuated by a cog wheel, fixed in the
centre of the plate or disc, to work upon and rotate the toothed quadrants, the teeth
in the wheel and quadrants being of corresponding size, so that the movement of
the centre wheel will cause the arms of the quadrants to close in or extend according
to whichever direction the centre wheel is turned, therefore when the quadrant
arms, are brought close together, they may then be easily passed through the
mouth of the globe, and by the reverse movement, the arms of the quadrants will
extend so as to press against the inner part-side or flange of the globe and so.hold
it in a vertical or other position.
The whole arrangement is worked by a tube upon which is fixed the centre
wheel, the tube passes through the top of coronet, and through the centre of plate
or disc upon which the quadrants are fixed, also through this tube.the electric. wire
passes ready for attaching to the lamp, the centre wheel is fixed" on lower end of
tube and just below plate or disc.
Ismay either screw solder or otherwise fix the centre wheel upon the tube, aud
when fixed; the wheel and quadrants are easily operated upon, by turning with, the
thumb and finger, a milled edge flange, which is fixed on top of tube, and a. little
above the top of coronet or other ornament. I may make the coronet either plain
or perforated, with a rim or Hange on the lower edge, to fit on flange of the globe,
the coronet or any other parts, may be made of brass, copper, vulcanite, hard wood,
or other suitable material, and any shape or size.
To prevent the quadrant arms turning or slipping back, or getting out of their
proper position, by the weight or strain of the globe, I provide a set screw at the
top of tube, and just above the top of coronet, or in any other suitable position, the
set-screw may be fixed at right angles or otherwise, this will have the effect of
locking or fixing the wheel and quadrants, and keep them in position, when-extended
inside the electric or other globe.
Or, I may accomplish the locking movement by means of a spiral or other spring
or springs, fixed inside the top part of coronet, and round or upon the tube, or in
any other suitable positions either of these arrangements would serve the.
of looking or fixing the quadrant arms, therefore either or both can be. used as
desired according to circumstances:-
Dated this 10th day of September '1891..
.purpose

page_text: COMPLETE SPECIFICATION.
An Improved Electric Globe Gallery and Shade Holder.
I, JOHN WHITEHEAD, of 42 Anglesey Street Lozells Birmingham, 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:-
My invention relates to a new or improved holder for the globes of electric
incandescent lamps and consists in fixing within the metal coronet which is generally
used as a cap or cover for the globe of such lamps, a plain or perforated metal-disc
which is soldered or otherwise secured to a rim or flange formed inside the said
coronet. This disc is centrally perforated to allow for the passage of a central
tube extending outside the coronet and through which are passed the electric wires
for attachment to the lamp. At the bottom of this central tube is mounted below
the disc aforesaid a toothed wheel, gearing simultaneously with three toothed sectors
arranged at equal intervals upon three pivots fixed to the said disc. Each sector
carries an arm bent in such a manner as to enter the groove or circular recess
formed around the top of the globe.
The coronet is surmounted by a tubular piece or knob surrounding the central
tube before mentioned and on which is fixed a milled edge disc whereby the central
toothed wheel aforesaid may be conveniently turned by hand, this milled edge disc
having a perforation through which turns a screw bearing upon the top of the
coronet and having for its object to lock the said disc and with it the three arms in
the position in which they have been placed.
In the accompanying drawings,
Fig. 1, is a front view with the coronet partly in section, of my improved holder
secured to the globe of an electric incandescent lamp-and
Figure 2, is a similar view showing the globe detached from the holder,
Figs. 3 and 4, being inverted plans of these two views.
•
My improved holder consists of a disc c, soldered, rivetted or secured in any
other suitable manner to the rim 6 formed within the inner surface of the coronet a.
Upon this disc c are fixed three screws upon which pivot three toothed sectors a,,s
gearing with the toothed wheel wo mounted upon the lower end of the central tube
through which pass on their way to the lamp the electric wires used to supply the
latter with the electric current. The sectors are connected to three arms d, d, d²
bent up at their lower extremities. The coronet a is surmounted with a tubular
piece or knob h fixed to the tube t and upon which is formed or fixed a milled
edge ring k furnished with a perforation on one side through which can move a
screw f.
By turning, with the aid of the milled edge screw k, the central toothed wheel w
in the direction of the arrow the three sectors, s', are moved into the position
shown in Figs. 2 and 4 for instance, that is to say, the arms d, d', d' are turned
inwardly so as to allow of the globe 9 being readily removed. To fix this globe in
position, the ring is turned in a reverse direction to the former when the
sectors s,, are turned outwardly with the arms' d, d², d³, whereupon the bent
up ends of the latter enter the circular recess or groove e formed in the top of the
globe and come to bear slightly against its wall, thus firmly holding the same in
position. To prevent the sectors from, slipping backward when fixed in position,
the screw fis turned until its point bears firmly on the top of the coronet thereby
locking the said sectors.

page_text: 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 :-
The improved holder for the globes of electric incandescent lamps, arranged
and operating substantially as herein described and shown.
Dated this 13th day of June 1892.
RAYNER & Co.,
37, Chancery Lane, London, W.C., Agents for the Applicant.