ultramarin marine translations
ultramarin.online
nl nefoscoop
wolkenharp		      
de Nephoskop
Wolkenmesser 		 
en nephoscope  
fr néphoscope  
pl    
rus    
     
 
 
  Fineman pattern nephoscope: It consists of a disc of black glass mounted on a tripod stand fitted with levelling screws. A vertical pointer which can be raised or lowered by rack and pinion, is attached to a collar which can be rotated independently of the mirror. A scale of millimeters engraved on the edge of the pointer gives the height of the tip above the glass surface. The black glass disc is engraved with concentric circles and radii 25mm apart.