Improved Means of Accommodating Electric Wires in Buildings.
Year: 1890

page_text: Date of Application, 19th Sept., 1890
Complete Specification Left, 15th June, 1891-Accepted, 18th July, 1891
PROVISIONAL SPECIFICATION.
Improved Means of Accommodating Electric Wires in Buildings.
I, FREDERICK WALTON, of No. 4 Portugal Street, Lincoln's Inn Fields, in the
County of London, Manufacturer, do hereby declare the nature of this invention
to be as follows:-
-
It is often desirable in apartments and elsewhere to conceal electric wires behind
mouldings, but it is often difficult to form these mouldings to suit curves and other
peculiarities of structure. My invention relates to the manufacture and use of
material for such mouldings arranged to accommodate electric wires, and practically
to insulate them. For this purpose according to one method I form of composition
like that used for "l'incrusta a moulding in two thicknesses the one thickness
having longitudinal grooves to receive the wires, and the other thickness being of
any ornamental design to form a cover cemented over the wires. According to
another method I imbed the wires in the material of the moulding when it is being
made. This material in plastic condition is forced out through a die in a continuous
column and impressed with the moulding pattern.
I supply the wires to the apparatus by which the plastic material is extended so
that they pass out with it imbedded in it.
In order to impress the material with the moulding pattern it is passed round a
roller engraved with the counterpart of the pattern and pressed against it by a
flexible band and pressing roller external to it. The material forming the moulding
may have its insulating properties enhanced by addition of shellac or other similar
material, and it may be rendered virtually incombustible by addition of tungstate
of soda or like bodies to its ingredients.
Dated this 10th day of Sentember 1890
ABEL & IMRAY,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improved Means of Accommodating Electric Wires in Buildings.
I, FREDERICK WALTON, of No. 4 Portugal Street, Lincoln's Inn Fields, in the
County of London, 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 :—
·
It is often desirable in apartments and elsewhere to conceal electric wires behind
mouldings, but it is often difficult to form these mouldings to suit curves and other
peculiarities of structure. My invention relates to the manufacture and use of
material for such mouldings arranged to accommodate electric wires, and practically
to insulate them. For this purpose I form of composition like that used for
l'incrusta a moulding in which the conductors are enclosed.
A composition suitable for this purpose may be prepared as follows. First, I
thoroughly mix by stirring in a steam heated pan about 7 parts by weight of
oxidised or solidified oil to one part of resin and 1 part of Kauri gum thus forming
a cement. To 50 parts by weight of this cement I add 45 parts of agalite and
5 parts of slacked chalk lime, thoroughly mixing the ingredients by steam heated
rollers. Instead of preparing the cement separately, the whole of the ingredients
may be mixed together in about the proportions above stated, and, if desired,
colouring materials may be mingled with them. According to another method Í
thoroughly mix by steam heated rollers 60 parts by weight of what is known as
ונג

page_text: residuum or candle pitch being the pitchy material left after distillation of palm oil,
petroleum and other oleaginous substances, with 25 parts agalite, 5 parts resin, and
10 parts slacked chalk lime, but I vary these proportions according to the
consistency of the residuum employed and the degree of insulation desired.
In both cases, when very thorough insulation is required I may add a proportion
of shellac, and when it is desired to render the composition incombustible I add
about 5 per cent. of tungstate of soda or other known material having a like quality.
According to one.method of preparing the moulding, I make it of either of the
compositions described, in two thicknesses, the one thickness having longitudinal
grooves to receive the wires and the other thickness being of any ornamental design
to form a cover which is cemented with shellac over the wires. According to
another method, I imbed the wires in the material of the moulding when it is being
made, by forcing the material in plastic condition out through a die in a continuous
column and afterwards impressing it with the moulding pattern.
I supply the wires to the apparatus by which the plastic material is extruded, so
that they pass out with it imbedded in it, as in the ordinary process for manu-
facturing insulated conducting wires.
In order to impress the material with the desired moulding or ornamental pattern
it is passed round a roller engraved with the counterpart of the pattern and pressed
against it by a flexible band and pressing roller external to the band.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I claim :-
For accommodating electric wires in buildings, the use of mouldings in which the
wires are imbedded, these mouldings being made of plastic composition and formed
substantially as described.
Dated this 12th day of June 1801
ABEL & IMRAY,
Agents for the Applicant.