clearance between the two vertical rollers is 

 3 inches. The top plate of the cage is hinged 

 on one side and secured with wing nuts on the 

 other so that it can be swung out of the way for 

 inserting or removing the hose. The unit is 

 mounted on a short vertical post projecting 

 from the deck of the vessel and rotates freely 

 in the horizontal plane. 



The Filtering Unit 



The filtering unit (fig. 8) consists of a 

 watermeter, a quick acting double- throw valve 

 and two filtering funnels. These elements are 

 arranged so that water can be directed to 

 either of the funnels after it passes through 

 the meter. A thermister sensing unit mounted 



in a pipe tee between the watermeter and the 

 double-throw valve is connected to a Rustrak 

 recording unit to provide a continuous record 

 of temperature. 



Each funnel is set in a large trash can with 

 two openings in the front. A 4-inch I.D. hose 

 connected to a pipe nipple in the lower opening 

 carries filtered water to the scuppers of the 

 vessel. The upper opening permits the operator 

 to reach the collecting bucket at the bottom of 

 the funnel. The funnels and trash cans are 

 lashed in place. 



When desired, water can be diverted to the 

 scuppers before it reaches the filtering unit 



Figure 8.--The filtering unit composed of watermeter, double-throw valve and two filtering funnels mounted 

 in trash cans. The thermister just above the watermeter is connected to a Rustrak recording unit at the far 

 right. The smaller hose is the incoming waterline and the larger hoses are drainagelines. 



