Improvements in Electrical Resistances.
Year: 1892

page_text: Date of Application, 23rd Nov., 1892
Complete Specification Left, 14th Sept., 1893-Accepted, 14th Oct., 1893
PROVISIONAL SPECIFICATION.
Improvements in Electrical Resistances.
I HENRY EDMUNDS of 39 Victoria Street in the City of Westminster Electrical
Engineer do hereby declare the nature of this invention to be as follows:-
My invention has for its object to obviate the injurious effects of heating
incidental to resistances interposed in electrical circuits as hitherto.
According to my invention I make the resistance of the resistant metal or
material plaited, knitted, woven, or otherwise formed with interstices, which will
cause a comparatively large surface of the metal or material to be presented to the
air. may
make these resistances in the form of flat tubes, or of other convenient
shape. When the resistances are in use owing to the large surface of the metal or
material thereof in contact with the air objectionable overheating of the resistances
is prevented.
"
The resistant material may be for example of one metal or of two or more metals
in combination so that without altering the size of the resistances the degree of
resistance thereof can be varied.
Dated this 23rd day of November 1892.
J. H. JOHNSON & Co.,
47, Lincoln's Inn Fields, London, W.C., Agents.
COMPLETE SPECIFICATION.
Improvements in Electrical Resistances.
I, HENRY EDMUNDS of 39 Victoria Street in the City of Westminster 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 invention has for its object to obviate the injurious effects of heating
incidental to resistances interposed in electrical circuits as hitherto.
According to my iuvention I make the resistance of the resistant metal, or
material, plaited, knitted, woven, or otherwise formed with intertices, which will
cause a comparatively large surface of the metal, or material, to be presented to
the air. I may make these resistances in the form of flat tubes, or of other
convenient shape. When the resistances are in use, owing to the large surface of
the metal, or material, thereof in contact with the air, objectionable overheating of
the resistances is prevented.
The resistant metal, or material, may be, for example, of one metal, or of two, or
or more, metals in combination, so that, without altering the size of the resistances,
the degree of resistance thereof can be varied.
The accompanying drawing represents an electrical resistance made according to
my invention in the form of a Hat tube. It is composed of metal strips, or wires,
plaited, or interlaced, so that there are spaces between them such as to cause a
large surface of the metal to be presented to the air. The strips, or wires, or other
form of metal, employed, may be plaited, knitted, woven, or otherwise interlaced,
or intertwined, or combined together in a manner equivalent to that shewn, and
the resistance, and the strips, wires, or the like, which form it, may be of any
desired, or convenient, shape, and the resistance may be connected to the circuit
with which it is used in any convenient way.

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 :-
An electrical resistance made of strips, wires, or the like, plaited, knitted, woven,
or otherwise interlaced, or intertwined, to any desired shape or form, so as to leave
interstices, substantially as, and for the purpose, hereinbefore described.
Dated this 14th day of September 1893.
J. H. JOHNSON & Co.,
Agents.