var 0.™41 (1 Fod 4 Tom.) lange og 0. ffl 42 (1 Pod 4 Tom.) 

 i Diameter. Tapperne om Bagbord. der brugtes til Ind- 

 hivning af Lodlinen, vare 0."'41 lauge og 0. m 73 (2 Fod 

 4 Tom.) i Diameter. Alle 4 Tapper barde 5 Furer eller 

 Hitler. At'4andeu luellem forreste og agterste Tappecentrer 

 var l.'"14 (;! Fod 7. ti Tom.). Tapperne blev saaledes drevne 

 samtidig rundt med lige Hastighed og samme Yej. Ma- 

 skinen vigte sig særdeles bensigtsmæssig. idet den arbejdede 

 sikkert og kraftigt, kunde baade hale og tire. uden at man 

 behøvede at skitte Linen paa Tapperne, og man undgik 



by beys. The drums on the starboard side, for bauling 

 in the dredge-rope, bad a length of 1 foot 4'/.i inches, and 

 were 1 foot 4 1 '... inches in diameter; those on the port 

 side, for bringing in the sounding-line, had a length of 1 

 foot 4 1 /.! inches. with a diameter of 2 feet 4 7 / s inches. The 

 4 drums bad each of them 5 flutes, or gi - ooves. Between 

 the foremost and hindmost pair of drums, measured from 

 centre to centre. the distance was .'i teet 'J : '. „ ; inches. Hence 

 it is obvious. tbat the drums would revolve simultaneously, 

 with equal velocity and in the same direction. The donkey- 



Fig. 5. 



Skrændsningen. der følger med Indhivning paa én kon- 

 kav Tap. De store Tapper om Bagbord tog ind 100 Favne 

 (183 Meter) af Lodlinen i 3 Minuter. og de smaa om Styr- 

 bord 100 Favne af Skrabetouget i 6 å 7 Minuter. 



I Beåndelsen blev den bragte Damp fra Højtryks- 

 cylinderne ledet i en Slange over Dækket og ud over Skibs- 

 siden om Styrbord. Da Dampen ved dette Arrangement 

 jevnlig blæstes ind over Dækket og generede. sattes et 

 Kobberror som Dampskorsten retop bag Stormasten. hvor- 

 ved den nævnte Ulempe hævedes. 



engine proved a most efiicient little mackine, working with 

 surprising steadiness and ease; we could haul in or pay out 

 the line without baving to shift it on the drums, and there 

 was no surging, which cannot be avoided when the drum is con- 

 cave. The large drums on the port side delivered 100 fath- 

 oms of soimding-line in 3 minutes, and the small ones on the 

 starboard side, 100 fathoms of dredge-rope in 6 or 7 minutes. 

 On the first cruise, the waste steam escaped tbrough 

 a hose on deck over the starboard side of the vessel; but 

 being with this arrangement, frequently blown back, to the 

 inconvenience of those on deck, the following year a copper 

 steam-pipe was put up abaft the mainmast to get rid of 

 the nuisance. 



