CAB 



■of the giwn height, its index being incroafed by lo, fiihtraft 

 the logarithm of the afll'^iied diftance, the reminder will be 

 the log. tangent of the required angle. But :f there is no 

 fixed mark, and in that cafe the angle fiihtriiHid by the 

 dillancc bct.vecri the truck and the w.itcr i< to be oblerved, 

 the meafure of this angle may be f.uind by calcnlaiion as 

 follows: from the hti'^ht of the mu k abive the water 

 fubtrad the height ul the obferver; froirrthe log. of the re- 

 mainder, lis index being increafed by lO, fubtracl the log. 

 of the dillance, the remainder will be the log. tangent of 

 an arch ; a;/d from the log. of the height of the obferver, its 

 index increafed by lo, fubtrad that of the di(h:nce, the re- 

 riaindcr will be the log. tangent o*' an arch ; the lum of thefe 

 two arches will be the angle required. 



Example. Let the iifpTned dilfance between two adjacent 

 (hip". be one cable's 1 ngth, or 720 feet, the bright <.* the 

 niain-top-gallant truck of the fliip a-head above the water 

 KyO feet, and the hei;lit of the obfervcr's eye 24 feet ; requir- 

 ed the angle fubtenoed by the mail ? 



Height truck lyo 



Height obfer%'er 24 log. i.j8o2i 



Angle required 14 34 

 See alfo Dr. Mackay's Navigation, p. 224. 



Cable, link worming of a, is an operation performed for 

 prcferving it in rocky and ftony ground, or defending it 

 againll ice. For this purpofe chains are twilled round cables 

 in the following manner. Take three chains, each about 15 

 fathoms in length, and all of an equal fize, and in thickncls 

 proportioned to the purpofe to which they are adapted. 

 Lft thefe be wound round the cable, fo that they may pro- 

 ject fufficiently to fuftain the greatefl part of the friftion, 

 one end of them being failened to the ring of the anchor, 

 and each chain being from thence wormed round its rcfpec- 

 tive hollow or channel of the cal.le, fo at not to prevent its 

 ilretching. Fallen the other ends of the chain to the cable. 

 The chains need not be very heavy ; but the links (hould be 

 fliort, bccaufe they will thus be more pliant, and worm more 

 tafily. Thefe chains will cfTedlually guard the cable agaiuft 

 the chafing of the rocks, and they may be put on in a few 

 minutes, fo that it is not neceffary to have them fitted on but 

 when they are likely to be ferviceabie. As the weight of the 

 three chains, even for a large cable, will not exceed 500 

 pounds, the only remaining difficu'ty is that which arifes 

 from the fmallnefs of the hawfe-holes ; in order to obviate 

 this, the holes may be enlarged ; and with the additional aid 

 of a boy or fpare man at the head of the vefTel, to cad off 

 the chains as they come up, and hand them in ahnvc, every 

 inconvenience will be removed. But if it fliould p ,|iire a 

 few minutes more to weigh an anchor fo fccured than a 

 common one, this can be no argument againll a meafure that 

 tends to preferve and enfure the fafety of the velTel and of 

 the fhip's company. In high latitudes, where ice may cut 

 or dimage the cables, while riding at anchor, the ufe of three 

 other ciiains fuch as the preceding, but not more than five 

 or fix fathoms in length, may be recommended. Thefe 

 may be wormed round the cables in the fame manner 

 at the furface of the water, and will be an excellent 

 means of guarding them from the prcffure of the ice, fo as 

 to prevent its either wounding them or chafing them quite 

 aTuader. -^ 



CAB 



Cable, /jMve in ihs, the order to draw it into the (hip by 

 mcajis of the v.'indlafs or capltan. 



Cablf, pay aivay, -veer, or give out more, that is to flacken 

 the cable that it may run out of the (hip. 



Cable, fervc the, is to bind it round with ropes, old 

 canvas, leather, or other materials, to prevent it from being 

 galled or fretted in the hawfc by fnclion. A piece of tanned 

 horfe-hide, big enough to be wrapped two or three times 

 round the cable, has been recommended as tlie bell kind of 

 fervice to prevent it from chafing or fretting in a I'torm : 

 this fervice is alfo eafily put ou and taken off. The method 

 of putting it on the cable is firll to wrap two or three folds 

 of old canvas, the length of xhi leather-fei vice, v.'hich if too 

 llifT to put on dry, requires only to be dipped in water, and 

 beat againll any wood, whicn will make it foft and pliable. 

 Then wrap it as tight as p'jfMble upon the old canvas round 

 the cable, tying it tight and Imooth on with lennit, or three- 

 yarn nittles, made for that purpofe, grtafing them and the 

 fervice veiy well before vc ring it iiilo the hawle-hole. It 

 may be obferved that all cables (hould be ferved againll the 

 lay. 



Cable, Jheet-anchor, the largeft cable belonging to a 

 fhip. 



Cable,_/Zi5< of the. See Shot. 



Q.h.t.x.'i.-, J'plicc a, is to join or conneft two pieces of cable, 

 or two cables together, by interweaving their ftrands. The 

 fnuggeft and bell method of fplicing a cable, is to put the 

 ends in twice each way ; then to pick out the ftrands, and 

 worm part of them round the cable, and taper away the reft, 

 which let be fnuggly marled down. After this, let there be 

 clapped on a good throat, and two end feizings of fix thread 

 ratline. The llrands or the fmall bower and ftream cables 

 had better be pointed, that thefe cables may be more briflcly 

 fpliced in cafe of necefTity. 



Cable, Jlip the, is to let it run quite out, when there is 

 not time to weigh the anchor. Slipping the cable, if time 

 will permit, is preferable to cutting it, as the anchor and 

 cable are thu? preferved. Befcre it is either cut or flipped, a 

 fpare bu ly-rope (liould be paffed through the hawle-hole, 

 and failened near the end with a rolling-hitch ; the end 

 fliould be wormed in the cunt-line and (lopped, that it may 

 be eafily regained. 



Cau'Lt., jloiL'iiig the. See Stowing. 



Cable, Jifeam, a hawfer or rope a little fmaller than the 

 bower cables, ufed to moor a (hip in a river or haven, which 

 is (lieltered from the wind and fea. 



Cable to-, the hollow fpace in the middle of a cable when 

 it is coiled. 



Cable IJlancl, in Geography, a fmall rocky idand, the 

 rt fort of fea-fowl, on the fouthern coall of Ireland, form- 

 ing the fouth-weftern point of Youghel bay. On the north 

 fide of it is good anchorage. W. long. 7° 51'. N. lat. 

 51° S3'- 



CABLED, in Heraldry, is applied to a crofs formed of 

 the two ends of a (hip's cable : fometimes alfo to a crofs 

 covered over with rounds of rope ; more properly called a 

 crofs corded. 



<-ABLET, in Sea Language, denotes any cable-laid 

 rope under nine inches in circumference. Cablets ufed for 

 tow lines or hawftrs, require the ftrands to be laid fliorter 

 than cable ftrands, but not fo fiiort-laid in clofing ; for, 

 being ufed in water, they would become ftifi, hard, un- 

 handy to coil away, and liable to break in cold weather. 

 Yarn for ropts of this fort ftiould be finer than for cables, 

 and fpun to run from 18 to 20 threads to three inches in 

 circumference. It (hould not be much tarred, as the tar 

 would ooze out and the ftrands kink. 



CABLIAU, 



