BuL. U. S. B. F., 1908. 



Plate XCI. 



Fig. 3. — Starboard side, looking^ aft. inside float. Shafting system and general 

 arrangement of cars. 



Fig. 4.— Car with propeller in motion. From propeller the shafting may be followed back (1--8) 

 to the universal joint, i. propeller shaft; 2, sleeve coupling; 5, long'itudinal shaft; 4, adjust- 

 able shaft hanger; 5. gear trains from longitudinal to transverse .shafts; 6, transverse hori- 

 zontal shaft of float; 7. shaft hanger; 8, ball joint connecting shaft with that of hou.se boat; 

 9, edge of rearing box; lo, brace across corner of rearing box; 11, holding-down plank 

 mortised into corner post; 12, shaft beam. 



