WATER, SEA. 11.07 



sheaf of pipes in the refrigerator. And tho result is, that after passing through the 

 filter it flows at 34 in the state of perfectly cold fresh water, thoroughly aerated, and of 

 matchless quality. 



20, level to which the sea water rises in tho aerating pipe 19. 



21, pipe conducting the mixture of steam and air from the feed and priming-box 12 

 into the sheaf of pipes 17 of the condenser 6. 



22, pipe loading the mixture of steam and air from the evaporator 14 into the 

 feed and priming-box 12, where any salt water, with which it may be mixed, is 

 arrested and returned to tho evaporator 14, through pipe 13, while the pure steam, 

 passing through pipe 21, is next condensed in the sheaf of pipes 17 of the con- 

 denser 6. 



23, sheaf of pipes immersed in the sea water 36 of the evaporator 14, and in which 

 pipes tho steam coming from the boiler through tho steam-pi po 35 is condensed, after 

 which it flows as distilled but non-aerated fresh water into the lower cap 24, and 

 thence through pipe 25 into the steam-trap 26, thence through the pipes 29 and 31 

 and cock 41 into the sheaf of pipes 15 of the refrigerator 3. 



24, upper and lower caps covering the two extremities of pipes 23 of the evaporator 

 14, into which pipes the steam from the boiler diffuses itself, and is condensed, after 

 which it flows in the state of distilled but non-aerated fresh water, through pipe 25 

 into the steam-trap 26. and thence through pipes 29 and 31 into the pipes 15 of tho 

 refrigerator 3, in which it mixes with the aerated water coming through pipe 30, and 

 passing through pipe 32 into the filter 33, finally issues at pipe 34 in the state of cold, 

 matchless, aerated fresh water, immediately fit for consumption. 



25, pipe for tho exit of the condensed non-aerated fresh water from the sheaf of 

 pipes 23, of the evaporator 14, which water, after entering the steam-trap 26, issues 

 therefrom through pipe 29, and then enters the refrigerator as already said. 



26, steam-trap. It is a box containing a float 28, provided with a plunger 

 acting in such a way that when the box contains only steam, or a quantity of con- 

 densed water, not sufficient to buoy the float, it (tho plunger) closes the exit pipe 29 ; 

 but as soon as the condensed water has accumulated in quantity sufficient to buoy the 

 float up, the plunger, of course, rising with the float, no longer obstructs the exit 

 pipe 29, and accordingly tho condensed water may then escape as fast as it is 

 produced. 



27, small pet cock on the top of the cover of the steam-trap 26. 



28, float already described (26). 



29, pipe loading the condensed non-aerated water from the steam trap 26, through 

 pipe 31, into the pipes 15 of the refrigerator 3, in which it mixes with the aerated 

 fresh water from the condenser. 



30, pipes leading the condensed aerated water from the pipes 17 of the condenser 6, 

 into the pipes 15 of the refrigerator 3, in which it mixes with the non-aerated water 

 from tho steam. 26. This pipe is provided with two cocks, 38 and 39, for tho purpose 

 of cleaning the condenser 6. 



31, pipe leading the condensed non-aerated water from pipe 29 into the pipes 15 of 

 the refrigerator, in which it mixes with the aerated water from the condenser. 



32, exit-pipe and cock, through which the mixed distilled waters (aerated and non- 

 aerated), after passing through the pipes of the refrigerator, enter the filter 33. 



33, filter for receiving the condensed water from both the evaporator and the con- 

 denser, as they issue in a mixed and cold state from the pipes 15 of tho refrigerator 

 3, through cock and pipe 32. 



34, pipe for the final exit of the perfect aerated fresh water. 



35, steam-pipe and cock leading the steam more or less under pressure from any 

 description of boiler to the pipes 23 of the evaporator 14. It is connected at one end 

 with the steam-boiler, and at the other with the upper cap, 24, of the evaporating 

 pipes 23. 



36, sea water, to be evaporated by the steam-pipes 23, of the evaporator 14. 



37, steam room, or space into which the air naturally contained in the sea water used 

 for condensation in tho condenser 6, is poured through the aerating pipe 19, so as to 

 mix with tho steam generated by the pipes 23 of the evaporator. 



38 and 39, two cocks on pipe 30, placed between the condenser 6 and the refrige- 

 rator 3, for the purpose of clearing the pipes 17 of the condenser 6. 



40 and 41, two cocks placed on pipe 31, for the purpose of clearing the pipes 23 of 

 the evaporator 14, and steam-trap 26. 



42, cock placed between the cap 16 of the refrigerator 3, and the cock 32, for the 

 purpose of cleaning the pipes 15 of the refrigerator 3. 



43, glass water-gauge. 



44, breathing-pipe. It is a small pipe, one end of which is in communication with 

 the lower cap 18 of the condensing-pipes 17, and the other end is open to the atrno- 



4 is 2 



