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17
De nedentil paasatte Jernblade f støder mod Bunden og
hindrer, at Kranen bliver fyldt med Mudder. Til vort
Brug anbragtes istedetfor disse en fast Jernstang med
Øjebolt i den nedre Ende. i hvilken Rør-Loddet indhexedes.
Apparatet rumiuede 2 Liter Vand.
I nder de før antydede (hnstændigheder- er Apparatet
særdeles hensigtsmæssigt og Tætningen, paalidelig, men
kommer noget i Vejen under Nedfiringen, maa hele
Operationen gjøres om igjen, og dertil kommer, at Bremmen
tilligemed øverste Lukningsskive frembyder en ikke uvæsentlig
Modstandsflade under en længere Indhivning.
Forberedelser til Lodning. Lodlinen. 3000 Favne lang,
var oprullet paa den agterud om Bagbord i Dækket
fast-skruede Dækrulle, der sees i Fig. 1. 2 og 14. I Fig. 13
er denne vist tydeligere. Kullens Bom var 0.m627 (2 Fod)
lang, O."1157 (6 Tom.) tyk og af Træ.
De cirkelformede Sideflader var af
tykke, galvaniserede Jernplader, paa
den indre Side plane, paa Ydersiderne
forstærkede ved dobbelte Lag af
Jernplader. Deres Diameter var l.m098
(3 Fod 6 Tom.) og deres Kanter var
afrundede, saa at de. frembød en glat.
ringformig Flade af omtrent 2.cm6 (en
Tommes) Diameter. Paa Bagbord Side
var anbragt en S vej v af0.™31 (1 Fods)
Længde med Træhaandtag. Stativets
tvende Dele var nedentil forbundne
med Jernstænger, og det hele hvilede
paa et Par langskibs løbende Bjælker,
gjennem hvilke Stativet var skruet fast
til Dækket.
Fig. 13.
Tampen af Lodlinen toges fra Rullen og manedes
gjennem Fodblokken paa Agterkant af Hytten (Fig. 14.)
Denne Blok var lidt mindre end Loddeblokken, og Skiven
solid, men forøvrigt af samme Konstruktion som denne.
Derfra manedes Lodlinetampen videre gjennem
Loddeblokken. der hang under Accumulator en. Accumulatoren var
i sin øvre Ende fæstet til et Topreb. hvis anden Ende var
fastgjort over Godset paa Storsalingen (Fig. 14.) Med
en firskaaren Talje haledes nu Accumulatoren ud paa sin
Plads under Bagbords Storraa-Nok. Storraaen brasedes
saaledes, at Accumulatoren kom omtrent for Midten af
Loddebroen. og blev i denne Stilling forstøttet med Braser,
Toplenter og Rakke. Lodlinen ihexedes øverste Øjebolt. i
Yandhenteren, eller Ringen i Rørloddet, eller Ringen i
Røret til Baillie-Maskinen. efter Omstændighederne.
Benyttedes Willes Yandhenter. hexedes Rorlod ’eller
Baillie-Maskinen i dennes nederste Øjebolt. Disse Forberedelser
blev truft’et. medens Fartøjet endnu var i Gang. De
følgende Manøvrer, der udførtes dels for at holde Fartøjet
saavidt mulig paa Plads under Lodningen, dels for at faa
I>en norske Nordliavsexpedition. C. Wille: Apparaterne og deres Brug.
water. Once down, the cylinder is kept in position by a
hook (b). which catches on the under surface of the
bottom-piece. The iron fenders (/) at the lower end of the
instrument serve to protect it when striking the bottom, and
prevent mud or rubble from fouling the stopcock. In lieu
of the fenders, we substituted an iron rod. having at the
lower end an eye-bolt, to which the tube-lead was attached.
The apparatus brings up about 2 litres of water.
Properly used, the Ekman water-bottle gives every
satisfaction. There is no leakage; but should any mishap
occur in veering, the whole operation will have to be
repeated: moreover, the flange of the cylinder and the disk
at the top offer considerable resistance in hauling up the
instrument.
Preparations for Deep-sea Sounding. — The
sounding-line — length 3000 fathoms — was wound on the port side
of the after-deck on a large, strong reel, secured by screws
(Figs. 1. 2. and 14) to the deck. Fig. 13 conveys a
clearer idea of the arrangement. The
barrel of the reel was of wood. 2 feet
33/4 inches long by 63/16 inches in
diameter, the two terminal disks being of
thick, galvanized sheet-iron,
strengthened on the outer surface by a double
plating of the same material. They
measured 3 feet l1^ inches in diameter,
and were rounded at the circumference,
so as to give them a smooth annular
rim. about an inch broad. At the
port end. the reel had an iron
lever-arm. 1 foot in length, with a wooden
handle. The two supports of the frame
were connected underneath by means
of iron stays, the whole apparatus
being made to rest on a couple of beams running fore and
aft. through which the frame was screwed to the deck.
The end of the line was run off the reel and rove
through the leading-block on the after part of the
roundhouse (Fig. 14.) This block was a trifle smaller than the
sounding-block and had a solid sheaf, though in other
respects similarly constructed. From thence the line was
rove through the sounding-block, which hung beneath the
accumulator. This apparatus was ^attached to a strong
pendant, made fast above the gear of the main cross-trees
(Fig. 14), and by means of a gun-tackle purchase hauled
out under the port main yard-arm. the yard being trimmed
so as to bring the accumulator as near as possible abreast
of the sounding-bridge, and kept in position by the braces,
topping-lifts, and trusses. The line — according to the nature
of the operation — was next shackled to the upper
eye-bolt of the water-bottle, the ring of the tube-lead, or the
ring of the tube of the Baillie machine. When using Wille’s
water-bottle, we hung the sounding-instrument — the
tube-lead or the Baillie machine — to the lower eye-bolt. These
preparations were made with the vessel steaming ahead:
the subsequent manoeuvres, for keeping the ship in position
3
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