Improvements in Suspenders for Electric Lamps.
Year: 1896

page_text: Date of Application, 29th Oct., 1896
PROVISIONAL SPECIFICATION.
Improvements in Suspenders for Electric Lamps.
I THOMAS LAURIE, Wellside Terrace, Falkirk in the County of Stirling
North Britain Electrical Engineer do hereby declare the nature of this invention
to be as follows:-
My improvements consist of an arrangement of a moveable suspender for
Electric lainps when these lamps are suspended by insulated flexible conductors, and
may be described as follows:-In one form of the suspender I form a small rod of
metal or other suitable material, at one end, into a hook or loop for the purpose or
receiving or hooking up the lamp. On the other end of said rod I form an eye or
hole through which is passed the insulated flexible conductor. The suspender so
formed when not in use generally lies horizontally, with the hook or loop end
approximately at right angles to the vertical conductor. When a lamp is looked or
suspended on the hook or loop end of suspender, the weight of the lamp pulls down
said end, and the hole or eye through which the conductor passes becomes horizontal,
consequently bending the before vertical cord at that point into such a form that
causes sufficient friction between the suspender and the insulated conductor to suspend
the weight of the lamp. By bringing the eye or hole again to the vertical, the
suspender may be raised or lowered on the conductor.
It is not necessary that the suspender should form a separate part or arrangement,
but it may be joined or form part of an electric lamp holder by simply having a hole
or eye made accross the diameter of the said holder at the top or other suitable
position.
m
Improvements in Suspenders for Electric Lamps.
I, THOMAS LAURIE, Wellside Terrace, Falkirk in the County of Stirling
North Britain Electrical 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 improvements consist of an arrangement of a moveable suspender for
Electric lamps, when these lamps are suspended by insulated flexible conductors.
For the purpose of properly understanding my invention I have hereunto appended
a sheet of drawings, in the several figures of which, corresponding parts are marked
with the same letters of reference.
In one form of the Suspender, I form a small rod of metal or other suitable

page_text: material into a hook, or loop, or other suitable form, A Figure 1-for the purpose of
receiving or hooking up the lainp. On the other end of said Rod I form an
eye, b, Figure 1, through which is passed easily the insulated flexible conductor C.
The Suspender so formed when not in use lies horizontally with the hook or
loop end approximately at a right angle to the vertical conductor C, as shewn
at A Figure 1.
When a lamp is hooked, or suspended on the hook or loop end of Suspender, the
weight of the lamp pulls down said end, in the manner of a lever, and the hole or eye b,
through which the conductor passes, becomes horizontal, consequently bending the before
vertical conductor, at that point-at a right angle to the vertical conductor above that
point causing sufficient friction between the Suspender and conductor to retain the
weight of the lamp. By bringing the eye or hole again vertical the suspender may
be raised or lowered on the conductor. The purpose of said Suspender being to raise
or lower the lamp by raising or lowering the Suspender on the conductor C.
It is not necessary that the Suspender should form a separate part or arrangement
as described, but an eye or hole may be formed in the holder of an electric lamp as
shewn at A Figure 3 said hole or eye being preferably bored across the diameter of
said holder.
I do not confine myself to the simple hole or eye, shewn at b Figure 1 but prefer
to bush this eye with a small bobbin of preferrably insulating material, as shewn
at d Figures 3 & 4. This having the advantage of a deeper eye and consequent greater
friction on the conductor, when intended to support a lamp. Nor do I confine myself
to the exact design shewn on the drawings appended hereto.
Having now particularly described the nature of my invention and the
manner in which the same is carried into effect, what I claim is :-
The arrangement of a suspender for Electric lamps, when these are suspended by
flexible cords or conductors, which is capable of being moved up or down the said
conductor and to automatically clutch the same when left of itself-or when weight
is applied to one end of said suspender furthest away from the vertical conductor-of
bending the same conductor into a form that has the effect of binding or causing
sufficient friction between the said conductor and the portion of suspender rubbing
against the said conductor, to sustain the weight of a lamp supported from
said suspender, all as substantially herein described.
To do. of T..1.. 1007