Improvements in the Manufacture of Buoyant Wire-ropes.
Year: 1895

page_text: Date of Application, 26th Mar., 1895
Complete Specification Left, 30th Apr., .1895-Accepted, 15th June, 1895
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Buoyant Wire-ropes.
I, GEORGE GATTON MELHUISH HARDINGHAM, of 191, Fleet Street, in the
City of London, Civil Engineer and Chartered Patent Agent, do hereby declare
the nature of this invention (a communication to me from the Firm of Felten
and Guilleaume, of Mülheim-on-the-Rhine, in the German Empire, Cable Manu-
facturers,) to he as follows
---
This invention relates to the manufacture of ropes or cables designed to float in
water and composed in the main of wire, but embodying cork, reindeer hair
or other buoyant material, in sufficient quantity to impart buoyancy to the rope or
cable.
According to one mode of carrying out this invention, the wires or wire-strands,
whereon the rope is principally dependent for tensile strength, are covered with
hemp, jute or the like, and this core is surrounded by several hose-pipes charge:
with cork or other buoyant material. The wires or wire strands, instead of being
covered with hemp, jute or the like, may be laid up round a core of such material;
or a core of wire or wire strands may be enclosed within a rope, or within the
strands of a rope, of hemp, jute or like material.
According to an alternative mode of construction, each wire or wire strand of
the rope is enclosed within a hose-pipe charged with cork or other suitable
material; the wires or wire strands being in some instances covered with hemp,
jute or the like. Each hose-pipe may be furnished with a covering of hemp, jute
or the like, and protected by an outer covering of wire. Each strand thus con-
stituted may be used by itself as a buoyant wire rope, or several such strands may
be formed into a cable. Instead of each wire or strand being enclosed within a
hose-pipe charged with cork or equivalent buoyant material, the same may be
furnished with cork rings, and then served as previously described. In forming
a cable, the strands may, if desired, be laid up round a core composed of a hose-
pipe charged with cork particles or with cork rings, and either covered or not with
hemp, jute or the like.
Doted the 26th day of March 1805
Improvements in the Manufacture of Buoyant Wire-ropes.
I, GEORGE GATTON MELHUISH HARDINGHAM, of 191, Fleet Street, in the
City of London, Civil Engineer and Chartered Patent Agent, do hereby declare
the nature of this invention (a communication to me froin the Firm of Felten
and Guilleaume, of Mülheim-on-the-Rhine, in the German Empire, Cable Manu-
facturers,) 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 the manufacture of ropes or cables designed to float in
water and composed in the main of wire, but embodying cork, reindeer hair or

page_text: other buoyant material, in sufficient quantity to impart buoyancy to the rope or
cable.
In the accompanying drawings,
Fig. 1 represents, in transverse section, one form of buoyant wire-rope or cable
constructed in accordance with the present invention.
Fig. 2 is a similar view illustrating an alternative mode of construction'; Fig. 3
being an elevation thereof.
Fig. 4 shows (also in transverse section) a rope or cable in which the buoyant
material assumes the form of cork rings applied in halves.
According to the mode of construction illustrated in Fig. 1, the wires or wire-
strands a, whereon the rope is principally dependent for tensile strength, are
furnished with a covering of hemp, jute or the like, and this core is surrounded
by several hose-pipes c charged with cork or other buoyant material e, and
furnished with a protective covering d of hemp, jute or the like. The buoyant
material may take the form of small hollow balls or bodies containing air. The
wires or wire-strands a, instead of being covered with hemp, jute or the like, may
be laid up around a core of such material; or a core of wire or wire-strands may
be enclosed within a rope, or within the strands of a rope, of 'hemp, jute or like
material.
According to the alternative mode of construction represented in Figs. 2, 3
and 4, each wire or wire-strand a of the rope is enclosed within a hose-pipe_c
charged with cork or other suitable buoyant material e; the wires or wire-strands
being in some instances covered with hemp, jute or the like. Each hose-pipe c
may be furnished with a protective covering d of hemp, jute or the like. Each
strand thus constituted may be used by itself as a buoyant wire-rope, or several
such strands may be formed into a cable. Instead of the hose-pipes c, within
which the wires or wire-strands a are enclosed, being charged with cork particles
or equivalent buoyant material e (Fig. 2), the same may be furnished with cork
rings e (Fig. 4), and then served as previously described. In forming a cable,
the strands so constituted may, if desired, be laid up around a core (consisting of a
hose-pipe rendered buoyant as hereinbefore described with reference to Fig. 1,
Fig. 2, or Fig. 4) either covered or not with hemp, jute or the like.
Having now particularly described and ascertained the nature of this inven
tion and in what manner the same is to be performed, I claim :-
:-
1. The improved manufacture of buoyant wire-ropes substantially as described
with reference to Fig. 1 of the accompanying drawings; the same comprising a
core consisting of wires or wire-strands covered with hemp, jute or the like,
surrounded by hose-pipes charged with cork or other buoyant material and covered
with hemp, jute or the like.
2. The improved manufacture of buoyant wire-ropes substantially as described
with reference to Figs. 2 and 3 of the accompanying drawings; the same com-
prising wires or wire-strands, enclosed within hose-pipes charged with cork or
other buoyant material and covered with hemp, jute or the like, the several wires
or strands so covered being laid up around a core formed of a hose-pipe charged
with cork or other buoyant material.
3. The modified construction of buoyant wire-rope substantially as described
with reference to Fig. 4, and in which a filling composed of cork rings applied in
halves, is substituted for the cork or other buoyant filling in a granular or fibrous
condition.
Dated the 2nd day af A: 100%