Improvements in Machinery for Producing Elliptical, Triangular, or other Form of Flattened Strand, Rope, or Cable.
Year: 1891

page_text: COMPLETE SPECIFICATION.
Improvements in Machinery for Producing Elliptical, Triangular, or
other Form of Flattened Strand, Rope, or Cable.
I ROBERT DIXON of Team Villa Gateshead on Tyne in the County of Durham
Wire Rope Manufacturer do hereby declare the nature of this invention and in
what manner the same is to be performed to be particularly described and ascér-
tained in and by the following statement :--
This invention relates to machinery for laying wires into strands and strands into
ropes or cables in which the core wires or strands are fed to the closing or laying
point centrally parallel and free from twist or spiral form previous to receiving
their outer spiral covering.
And in order that my present invention may be easily understood and readily
carried into practice I will proceed to describe same with reference to, the accom-
panying sheet of drawings.
A A is the main shaft of an ordinary stranding or laying machine on which are
fixed the discs for carrying the bobbin frames the said shaft being hollow or bored
through its centre. B is a tube within the hollow shaft A and passing centrally
to the laying or forming plate C and around which tube the said shaft A
revolves.
On the ends of the central tube B are fixed dies or nozzles D D perforated or
notched to keep the core wires F F in the desired position and pass them without
twist to the closing point to receive their outer spiral covering or coverings.
E is a pedestal fixed at the rear end of the machine for carrying clamps or other
suitable means for firmly holding the tube passing through the main shaft and by
which it is prevented from revolving with the machine.
I have found that while there is little tendency to twist in passing a flat strip of
metal through the main shaft of the machine as a core or foundation for a strand or
rope of elliptical or triangular section yet there is great difficulty when such core or
foundation is composed of two or more sections or wires therefore I propose adding
to the ordinary machine the mechanism above described to prevent twisting crossing
collapsing or other fouling of the central core and keep the latter always in the
same plane while receiving the outer spiral covering.
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 :-
In the manufacture of wire ropes or strands of elliptical triangular or other
flattened form in cross section I claim solely the application and combination of a
fixed tube such as B with any suitable stranding or laying machine such fixed tube
passing centrally through the main revolving shaft of such stranding or laying
machine and having a die or nozzle at one or both ends for guiding the core wire
or wires or core strand or strands parallel and without twist to the laying point to
receive their exterior spiral coverings substantially in the manner and for the
purpose herein before described and illustrated in the drawings hereunto annexed.
Dated this 30th day of June 1891.
TONGUE & BIRKBECK,
34, Southampton Buildings, Chancery Lane, London, W.C.,
Agents for the Patentee.