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See also:CABLE (from See also:Late See also:Lat. capulum, a halter, from capere, to take hold of)
, a large rope or See also:chain, used generally with See also:ships, but often employed for other purposes; the See also:term " See also:cable " is alsoused by See also:analogy in See also:minor varieties of similar See also:engineering or other attachments, and in the See also:case of " electric cables " for the sub-marine wires (see See also:TELEGRAPH) by which telegraphic messages are transmitted.'
The cable by which a See also:ship rides at her See also:anchor is now made of See also:iron; See also:prior to 1811 only hempen cables were supplied to ships of the See also:British See also:navy, a first-See also:rate's See also:complement on the See also:East See also:Indian station being eleven; the largest was 25 in
.
(equal to 2q in. iron cable) and weighed 6 tons
.
In 1811, iron cables were supplied to stationary ships; their superiority over hempen ones was See also:manifest, as they were less liable to foul or to be cut by rocks, or to be injured by enemy's shot
.
Iron cables are also handier and cleaner, an offensive odour being exhaled from dirty hempen cables, when unbent and stowed inboard
.
The first patent for iron cables was by See also:Phillip See also:
The iron used in the construction, also the testing, of mooring chains and cables for the See also:London Trinity See also:House See also:Corporation are subject to more stringent regulations
.
Cables for the British navy and See also:mercantile marine are supplied in 122 See also:fathom and 15 fathom lengths respectively, connected together by " joining shackles," D (fig
.
1)
.
Each length is
401 AT\ = ~ P~~It•---fie
V' \See also:air C
" marked " by pieces of iron wire being twisted See also:round the studs of the links; the wire is placed on the first studs on each side of the first shackle, on the second studs on each side of the second shackle, and so on; thus the number of lengths of cable out is clearly indicated
.
For instance, if the wire is on the See also:sixth
1 The word " cable " is a various See also:reading for " See also:camel " in the Biblical phrase, " it is easier for a camel to go through the See also:eye of a See also:needle " of Matt. xix
.
24, Mark x
.
25, and See also:Luke xviii
.
25, mentioned as See also:early as See also:Cyril of See also:Alexandria (5th cent.); and it was adopted by See also:Sir See also: In joining the lengths together, the round end of the shackle is placed towards the anchor . The end links of each length (C.C.) are made without studs, in See also:order to take the shackle; but as studs increase the strength of a link, in a studless or open link the iron is of greater See also:diameter . The next links (B.B.) have to be enlarged, in order to take the increased See also:size of the links C.C . In the joining shackle (D), the See also:pin is See also:oval, its greater diameter being in the direction of the See also:strain . The pin of a shackle, which attaches the cable to the anchor (called an "anchor shackle," to distinguish it from a joining shackle) projects and is secured by a forelock; but since any See also:projection in a joining shackle would be liable to be injured when the cable is See also:running out or when passing around a See also:capstan, the pins are made as shown at D, and are secured by a small pin d . This small pin is kept from coming out by being made a little See also:short, and See also:lead pellets are driven in at either end to fill up the holes in the shackle, which are made with a groove, so that as the pellets are driven in they expand or dovetail, keeping the small pin in its place.' The cables are stowed in chain lockers, the inboard ends being secured by a " slip " (in the mercantile marine the cable is often shackled or lashed to the kelson); the slip prevents the cable's inner end from passing overboard, and also enables the cable to be " slipped," or let go, in case of See also:necessity . In the British navy, swivel pieces are fitted in the first and last lengths of cable, to avoid and, if required, to take out turns in a cable, caused by a ship swinging round when at anchor . With a ship moored with two anchors, the cables are secured to a mooring swivel (fig . 2), which prevents a " foul hawse," i.e. the cables being entwined round each other . When mooring, unmooring, and as may be necessary, cables are temporarily secured by "slips" Fm . 2.–Mooring Swivel . shackled to eye or See also:ring bolts in the See also:deck (see ANCHOR) . The cable is See also:hove up by either a capstan or windlass (see CAPSTAN) actuated by See also:steam, See also:electricity or See also:manual See also:power . Ships in the British navy usually ride by the See also:compressor, the cable holder being used for checking the cable running out . When a ship has been given the necessary cable, the cable holder is eased up and the compressor " bowsed to "; in a heavy See also:sea, a turn, or if necessary two turns, are taken round the " bitts," a strong iron structure placed between the hawse and See also:navel (" deck ") pipes . A single turn of cable is often taken round the bitts when anchoring in deep See also:water . Small vessels of the mercantile marine ride by turns around the windlass; in larger or more See also:modern vessels fitted with a steam windlass, the See also:friction brakes take the strain, aided when required by the bitts, compressor or controller in See also:bad See also:weather . (J . W . |
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