IMPROVEMENTS IN THE MANUFACTURE OF WIRE ROPE
Year: 1885

page_text: HERBERT CHEESMAN, of the Hartlepool Ropery Company Limited, Hartlepool,
in the County of Durham, Manufacturer, do hereby declare the nature of the
said invention for "IMPROVEMENTS IN THE MANUFACTURE OF WIRE ROPE" to be
as follows:-
This invention relates to improvements in the manufacture of wire rope whereby
I obtain increased strength and length of wear and the improvements consist in
doing away with the torsioning of the wire in manufacturing that class of wire
rope in which the strands are laid in the same direction as the rope.
For this purpose I employ any suitable machine the gearing of which is so
arranged that it will keep the wire parallel while being formed into the strands.
Dated the 11th day of July 1005

page_text: I HERBERT CHEESMAN, of the Hartlepool Ropery Company, Limited, Hartlepool,
in the county of Durham, 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 :—
This invention relates to improvements in the manufacture of wire rope,
whereby I obtain increased strength and length of wear and the improvements
consist in doing away with the torsioning of the wire in manufacturing that class
of wire rope in which the strands are laid in the same direction as the rope.
The fibres of the wire before being made into ropes or strands are parallel
with the wire and to prevent torsion in forming these wires into strands, or in
other words into spirals, it is necessary to give a similar spiral to the fibres.
For this purpose I use machinery the mechanism of which is so arranged that
before forming the wires into strands, the lay or pitch of the spiral is anticipated
by what are termed spiral formers which operate upon the individual wires and
each spiral which these formers produce upon the wire is coincident with the lay
or pitch of the strand.
The spiral formers are constructed and arranged as follows: At the head of each
stranding machine are placed three rings of different diameters so as to form a
cone and around the peripheries of these three rings are placed small pulleys equi-
distant from one another, and the same number of pulleys are arranged on each
respective ring or part of the cone, so that when the rings are put at zero each of
the pulleys upon the three rings will be in a straight line, and the desired spiral
will be obtained by moving the centre ring or pulleys which will cause the wire
to assume a spiral formation, owing to the inclined plane of the former and the
revolution of the machine.
I have described an arrangement of machinery which I have found in practice
to give good results but I do not however confine myself to any particular mode
of carrying out this invention as I can make the rope in one or more operations.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is
The manufacture of wire rope of that class in which the strands of wire are
laid in the same direction as the rope without torsioning of the wire as herein-
before described.