HOLDING SLEEVE 



BUBBLE LEVEL! 

 ON HINGED 

 SLEEVE . 



J. T . 



BALL-AND-SOCKc 

 LEVELING MECHANISM 



-K. LEVELING THUMB 

 ! fc SCREWS (4) 



Figure 



4 . Level in 



on sea 



f 1 o o r 



and b 



in t r i 



pod rim 



, lev 



base p 



i pe sec 



t i o n 



ra is ed 



a few 



inche 



top of 



ho 1 d in 



g s le 



manipu 



1 at ing 



t humb 



levels 



on hin 



g ed s 



t ened 



and all 



owed 



prev en 



t s loss 



T- 



released, and 



pi pe 



screw 



wh i c h c 



1 amps 



raised 



position is 



falls 



through 



1 eve 



by T-sc rews. 



Pipe 



the sea floor 



. 



g device. With tripod in place 

 as e pipe section positioned with' 

 e 1 ing device is lowered over 

 and clamped to rim. Pipe is 

 s and secured by T-screws near 

 eve. Diver plumbs pipe by 



screws and observing bubble 

 leeve. Hinged sleeve is unfas- 

 t o drop out of the way . Chain 

 screws on holding sleeve are 

 drops to sea floor. The L- 

 the holding sleeve in the 

 loosened, and ho 1 d ing sleeve 

 ling device unt i 1 it is stopped 

 is now ready for jetting into 



12 



