An Improved System of Electric Wiring.
Year: 1893

page_text: Date of Application, 21st Aug., 1893
Complete Specification Left, 21st May, 1894-Accepted, 23rd June, 1894
PROVISIONAL SPECIFICATION.
An Improved System of Electric Wiring.
I, THOMAS PATTISON RENNOLDSON of Banbridge in the County of Down
Ireland, Engineer, do hereby declare the nature of this invention to be as
follows:-
This system is specially adapted for damp situations such as spinning rooms
distilleries &c. The positive and negative wires are fixed parallel to each other
and tightened mechanically by screws or other appliances so that any slack may at
any time be taken up. These wires are supported at intervals by porcelain (or
other insulating material) pieces fixed in a suitable bracket.
Wherever a lamp has to be suspended a bar of porcelain or other non-conductor
is suspended from the leads by two metallic wings with spring hooks which form
contact with the leads at the required place and being insulated from each other by
the porcelain and fitted with screws to which the drop wires may be attached Buch
drop wires usually having a turn round the porcelain so that the weight is not
taken by the terminal screws and provision made for an extra terminal screw for a
fuse wire and little porcelain lip to catch the drop of fused lead.
Dated this 18th day of August 1893.
T. P. RENNOLDSON.
COMPLETE SPECIFICATION.
An Improved System of Electric Wiring.
1 THOMAS PATTISON RENNOLDSON of Banbridge in the County of Down
Ireland 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 system is specially adapted for damp situations such as spinning rooms
distilleries &c. The positive and negative wires are fixed parallel to each other
and tightened mechanically by screws or other appliances so that any slack may at
any time be taken up. The wires are supported at intervals by pieces of porcelain
or other insulating material fixed in a suitable bracket. Wherever a lamp has to
be suspended, a bar of porcelain or other non conductor is suspended from the leads
by two metallic wings with spring hooks which form contact with the leads at the
required place and are insulated from each other by the porcelain and fixed by
screws to which the drop wires may be attached such drop wires usually having a
turn round the porcelain so that weight may not be taken by the terminal screws
and provision made for an extra terminal screw for a fuse wire and little porcelain
lip to catch the drop of fused lead where fuse may be required.
This suspending device will be fully described with reference to the accompanying
drawing-in which Fig. 1 is the front elevation Fig. 2. the side elevation and
Fig. 3 the plan, and in which A A are the leads B, B the metallic wings, C the
insulating piece and D the drop wires leading to the lamp.

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 :-
:-
1. The method of wiring with this special device for suspending lamp.
2. The special device for suspending lamp consisting of bar of insulating
material and brass wings (which may be quickly and easily detached) as shewn in
<drawing.
T. P. RENNOLDSON.