Improvements in and relating to the Construction of Wire Cables.
Year: 1890

page_text: Date of Application, 22nd July, 1890-Accepted, 13th Sept., 1890
COMPLETE SPECIFICATION.
Improvements in and relating to the Construction of Wire Cables.
We, JAMES EZEKIEL EMERSON and THOMAS MIDGLEY, citizens of the United
States, both residing at Beaver Falls, in Beaver County and State of Pennsylvania,
one of the United States of America, Manufacturers, 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 :-
Our invention relates to wire cables, and has for its object certain improvements in
the manufacture and construction thereof which will be hereinafter described and
particularly pointed out in the claims.
In the accompanying drawings which form part of this specification,
Figure 1 represents a side view of a section of coiled wire having left hand helices.
Figure 2 a similar view of right hand helices.
Figure 3 a side view of a cable formed of coiled wire helices, and
Figure 4 a similar view of a cable in which the helices have been elongated.
Reference being had to the drawings and the letters thereon, A indicates a section
of coiled wire in which the helices are coiled left hand, and B a section of coiled wire
in which the helices are coiled right hand. The sections A, B, of right and left hand
coiled helices are wound around a mandrel M of a diameter to suit the size of cable
desired, with the helices of one section projecting into the spaces-between the helices
of the other sections, as shown, and are secured together by strands, coils, or sections
of wire C, D, passing through the loops formed by the intermeshing of the helices,
and which extend throughout the length of the cable E. The strands or coils C, D,
are coiled to form a continuous spiral, and are screwed into the loops of the inter-·
meshing helices of the sections A, B, and thus unite the helices of the sections A, B ;
and the strain brought to bear upon the cable is distributed equally upon the strands
and the sections.
*
The cable thus formed is ready for use, but for some purposes it is desirable to have
the stretch taken out of the cable before it is put to use, and for such purposes the
cable E, is passed through a suitable furnace and heated to about a cherry red heat"
and the helices stretched or elongated into links F, and both ends of the links
seated in bends or seats a formed in the strands C, D, as shown in the cable G, in
Figure 4.
The cable E as it is made is wound upon a suitable reel, and is stretched by drawing
the cable through a furnace and winding the stretched cable upon another reel after
it has passed through the furnace. The stretching of the helices is effected by
applying power to the latter reel, and a resistance to the unwinding of the former
reel, such as a friction brake; or a pair of tension rolls may be applied to the
cable between the first reel and the furnace.
subjected to further treatment, by having the
with rubber, gutta-percha or other suitable
Figure 4; the rubber being applied while soft.
the rubber.
The cable G, for other purposes is
interstices between the links F filled
plastic material, as shown at H in
The cable is then heated to vulcanize
By this latter construction of the cable the wearing surface is composed of metal
and rubber, and presents a very neat and pleasing appearance.
The cable con-
structed as hereinbefore described may be used for any of the purposes to which
cables are applied, such as inclined planes, elevators, or for transmitting power
through the medium of grooved pulleys.
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed we declare that what we
claim is―
First. The method of making wire cables herein described, which consists in

page_text: forming sections of coiled wire helices, intermeshing the helices of said sections,
and then securing the helices in their intermeshed positions by screwing helical
strands or coils of wire into the intermeshed helices throughout the length of said
cable.
Second. The method of making wire cables herein described, which consists in
forming sections of coiled wire helices, winding said sections around a mandrel with
their helices intermeshing and forming a cylindrical body, then securing the helices
by intertwining helical strands or coils of wire with the intermeshed helices
throughout the length of the body, and then stretching or elongating the helices into
links.
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Third. A wire cable composed of intermeshed helices secured together by helical
strands or coils screwed into the intermeshed helices and extending throughout the
length of the cable, substantially as described.
Fourth. A wire cable composed of spirally wound and intermeshed helices,
secured together by continuous supplemental spiral coils in the intermeshed portions
of the adjacent helicos, substantially as described.
Fifth. A wire cable composed of spirally wound, elongated and intermeshed helices,
secured together by continuous supplemental spiral coils in the interimeshed portions
of the helices, with or without a filling of rubber; substantially as described.
JENSEN & SON,
77, Chancery Lane, London, W.C., Patent Agents.
JENSEN & SON,
77, Chancery Lane, London, W.C., Patent Agents.