Improvements in Ceiling Joints for Electroliers and the like.
Year: 1891

page_text: Date of Application, 28th Dec., 1891
Complete Specification Left, 28th Sept., 1892-Accepted, 12th Nov., 1892
PROVISIONAL SPECIFICATION.
Improvements in Ceiling Joints for Electroliers and the like.
I, GEORGE FREDRICK SANDERS of Hockley Street Works, Hockley Street,
Birmingham, in the County of Warwick, Chandelier Manufacturer, do hereby
declare the nature of this invention to be as follows:-
My invention relates as hereinafter described to improvements in ceiling joints
for electroliers and the like, and consists essentially in the construction and
arrangement of the aforesaid joint in such a manner as to give a perfect perpen-
dicularity to anything attached or suspended from a ceiling at the same time
preventing the electrolier from gyrating and causing the electric wires from being
disarranged.
In carrying my said invention into practice I construct a universal joint
somewhat in shape to that of the well known "Hookes joint" in the following
manner :-
I attach to the rose or ceiling plate a screw socket terminating in a plain tubular
projection, beneath this on the socket I connect a fork shaped joint.
I attach by screws or pegs on either sides forming gudgeons to a cylindrical
link.
་
At right angles to the said joint and to the cylindrical link I connect a similar
joint placed in an inverted position and jointed with gudgeons as before described.
The said joint terminates in a screw socket to which is attached the electrolier,
the extremity of the screw socket projecting upward into a tubular projection.
The function of the two tubular projections viz. :-the one projecting down-
wards and the other upwards into the interior of the cylindrical link as hereinafter
described.
When an electriclier is suspended from the ceiling by my improved joint,
perpendicularity will be obtained by the universal movement of the two joints
which permits of the necessary freedom of motion and inclination. The electric
wires passing through the centre of a joint are prevented from any diarrangement
by the movement of either of the said joints by the tubular projections of each
screw socket before described, form abuttments against the inner side of the tubular
link, to which each joint is attached. The joint prevents any gyrating of the
screw socket, thus keeping the wires from becoming twisted or disarranged.
My said invention may be modified in such a manner as may be necessary in
carrying the object into effect without departing from the nature thereof.
Dated this 28th day of December 1891
GEO. H. RAYNER,
37, Chancery Lane, London, W.C., Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Ceiling Joints for Electroliers and the like.
I, GEORGE FREDRICK SANDERS, of Hockley Street Works, Hockley Street,
Birmingham, in the County of Warwick, Chandelier 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 :-
My invention relates as hereinafter described to improvements in ceiling joints
for electroliers and the like and consists essentially in the construction and arrange-
ment of the aforesaid joint in such a manner as to give a perfect perpendicularity

page_text: to anything attached or suspended from a ceiling, at the same time preventing such
articles from gyrating.
In carrying my said invention into practice I construct a universal joint
somewhat similar in shape to that of the well-known "Hookes" joint in the
following manner :-
I attach to the rose or ceiling plate, a screw socket terminating in a tubular
projection, and beneath this socket I connect a bell or fork shaped joint
attached by screws or pegs on either side and forming gudgeons to a cylindrical
link.
At right angles to the said joint, and to the cylindrical link I connect a similar
joint placed in an inverted position, and jointed with such gudgeons as before
described.
The said joint terminates in a screw socket to which is attached a tubular
projection similar to the one before described.
The function of the two tubular projections is viz. :-The one projecting down-
wards and the other upwards into the interior of the cylindrical link as hereinafter
described.
When an electrolier is suspended from the ceiling by my improved joint,
perpendicularity will be obtained by the universal movement of the two joints
which permits of the necessary freedom of motion and inclination. The electric
wires passing through the centre of the joint, are prevented from any disarrange-
ment from the movement of the said joints by the tubular projections of each
screw socket before described, such screw sockets forming abuttments against.
the inner side of the tubular link to which each joint is attached.
The joint
prevents any gyrating of the screw socket, thus keeping the wires from becoming
twisted or disarranged.
My said invention may be modified in such a manner as may be necessary in
carrying the object into effect without departing from the nature thereof.
I will proceed to describe the way and manner in which my said invention may
be carried into effect, by means of the accompanying drawings, throughout which
similar letters of reference indicate similar parts.
In Figures 1, 2, 3, and 4, the rose or ceiling plate A is represented, to which is
attached the screw socket B terminating in a tubular projection D. To the screw
socket BI attach the bell shaped joint C, having projecting ears E and E', by
which it is attached by the screw gudgeons F and F to a cylindrical link G shown
separately at Figure 5. C' represents a bell shaped joint similar to C, but placed
in an inverted position, and jointed or pivoted to the cylindrical link by the screw
gudgeons F, F³.
To the bell shaped joint C¹, is fixed the screw socket B¹ for fixing the electrolier,
part of which is represented at H.
The upper part of the screw socket B¹ terminates in a tubular projection D¹.
Figure 6, shows more plainly one of the bell shaped joints in cross section and plan.
Figure 7, represents the lower joint C' attached to the cylindrical link G, with
the upper joint C in section through the ears E and E¹. In this view the four
screw gudgeons F, F¹, F' and F³, are shown connected to the cylindrical link G.
In Figure 1 the joints are represented in a perpendicular position with the supposed
electrolier attached a H. It will be obvious that if the electrolier be tilted or
pressed forward into the position shown at, Figure 3, the lower bell joint will pivot
on the screw gudgeons F and F¹ causing the projecting ear E' to enter the recess K.
Should the electrolier be moved in the opposite direction, the reverse action of the
parts will take place.
Figure 4 represents the same joints showing the supposed electrolier tilted at
right angles to that shown at Figure 3. In this position the lower joint C¹
pivots on the screw gudgeons F and F of the cylindrical link G in like manner
to that described in Figure 3. The same will take place if moved in the opposite
direction.
The wires J are prevented
from becoming disarranged by the movement of

page_text: the electrolier in any direction, and are held in their position by the tubular
projections D, D'.
In Figures 8 and 9, I represent in front elevation and plan, and in Figure 10, a
side view of a similar form of joint to that before described, with the rose or ceiling
plate and screw sockets detached.
The top part of the fork shaped joint C is pivoted by the screw gudgeons F
and Fl to the cylindrical ring G (shown separately at Figure 11). C₁ is a similar
joint in an inverted position and pivoted by the screw gudgeons at F3, F³, to the
cylindrical ring G.
Figure 12 shows in elevation and plan, the joint C¹ detached from the cylindrical
ring G.
Figure 13, shows a vertical section of the joint C. The universal movement of
this arrangement is identical with those already described.
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 ceiling joint for suspending and retaining in a perpendicular
position, electroliers and other articles of a like nature by means of a universal
joint or joints, or their equivalent, combined and operated by means of the
cylindrical link G and the screw pegs or gudgeons F, F1, F2, and F³, arranged and
constructed substantially as herein described and shown in the several figures of the
accompanying drawings.
Dated this 28th day of September 1892.
GEO. H. RAYNER,
37, Chancery Lane, London, W.C., Agent for the Applicant.