46 



I 1876 anvendtes, foruden den almin delige Log med 

 Flyndre og Line. ogsaa Masseys Patentlog. Denne viste 

 sig ikke synderlig hensigtsmæssig paa Grund af de hyppige 

 Standsninger, og et Par Exemplarer gik i Skruen og tab- 

 tes. Der savnedes ogsaa god Léjlighed til at kontrollere 

 dens Nojagtighed. I 1877 indsattes den at' Premierlieu- 

 tenant .1/. Petersen arrangerede Vandlog, hvis Anordning 



On the first cruise, in 1876. we used Massey's patent 

 log, as vell as the common log with logchips and line. 

 The first instrument, however, did not answer well. owing 

 to the frequent stoppages; and on one or tvo occasions 

 it fouled the screw, and was lost. Moreover. we had no 

 good opportunity whereby to test its accuracv. In 1877. 

 the "Vøringen" was furnished with a water-log, tho inven- 



Kin9 t J 



5» Cv 



tFoot- 



_J_ 



oi e 8 # 5 « 7 a 



s.Hctr 



~u /_■ i; iv is itFeet 



Fig. 



ombord i •'Vøritfgen" sees at' Fig. 21. der viser et Tversnit 

 af "Vøringen" gjennem den agterste Del af Maskinrummet, 

 seel forfra agterover. Vandloggen har følgende Indretning. 



Paa et bekveml Sted i Maskinrummet bores et Hul 

 i Skibsbunden og fores med et 1 Toms Kor. Over dette 

 anbringes med Flens Røret b ise den lille Figur) saaledes, 

 at Aabningen i dette danner en Fortsættelse af Hullet i 

 Humlen. Paa Midten af dette Rør er en konisk Kran og 

 omkring dets øvre Ende er Skruegjænger til Pakningsrin- 

 genc, &jennem Røret b og Hullet i Skibsbunden nedsættes 



Kuret il s;i;i langt, ut dell lille Aabning i dets nedre Kilde. 



tion of Lieutenant .1/. Petersen. Fig. 21, representing a 

 transverse section of the after part of the enuine-room. as 

 seen looking att. shows the arrangement of the water-log 

 on boa rd. 



ln some conveuient spol in the engine-room^ a hole 

 was bored in the ship's bottom to receive a one-inch metal 

 tulie. having fixed on to its top end the flange of the tube 

 b i ee small Figure), in such manner that the bore of the 

 hitter umild form a continuation of the hole in bhe ship's 

 bottom. This tube had a conical stop-cock, and its upper 

 extremitj screw-threads fitting into the gland c. The tube 

 a was passed througli the tube b and the hole in the ship's 



