454^^ 



Fowler's Patent ThermosijpJion. 



to disfigure a house by carrying the heating tubes over the door, and nevev* 

 necessary to lead th em to the roof or to the top of the back wall, because 

 as every body know s, heat ascends there sufficiently fast through the at- 

 mosphere. It is for heating baths, dwelling-houses, and perhaps the water 

 m certain descriptions of manufactories, or the rooms of manufactories, 

 that we consider this mode of heating best adapted, and we shall presently 

 show its application in that way. 



A very good mode of heating 

 a bath in a private house con- 

 sists in having a cistern of water 

 {fig. 96. a) situated any where 

 without or within the house, 

 provided it be above the level 

 of the bath {b); from the cistern 

 let a lead pipe of half an inch 

 in diameter, or less, descend to 

 a cistern at the back (c), or to 

 the small hot-water cistern in 

 the side, of the kitchen-range 

 ig) ; in this cistern, or in both, 

 let it make several coils, and 

 thence ascend to the bath (6). 

 It is evident that the cold 

 water of the cistern will be heated in passing through the coil of pipe in 

 the hot water of the kitchen-range, and by a cock it may be let into the 

 bath at pleasure without troubling servants, or indeed without their know- 

 ing anything of what is going on. To prevent the water in the cistern 

 (a) from being heated when the bath is not in use, a cock may be fixed any 

 where between the range and the cistern ; or a valve over the orifice of 

 the pipe (d) may be opened by means of a string (e) connected with the bath 

 room, with which room may also be connected a cold water pipe (/): 



To heat a bath similarly situated by 

 the Thermosiphon, insert the two open 

 ends of the siphon in the side boiler 

 of the kitchen-range (fig. 97. a), lead 

 them up to the bath (b), and let the de- 

 scending leg of the siphon (c) make 

 a coil of turns under the false bottom 

 of the bath (d). The only trouble 

 in this case is setting the siphon to 

 Vvork, which is done by closing the 

 cocks (ee), opening that under the funnel 

 (,/), and pouring in water there till the 

 siphon is filled from (e e) upwards ; then 

 opening the cocks (e e) and pouring in 

 as much more as fills it completely, when 

 closing the cock (/), the circulation will 

 fcommence. In the figure the two ends 

 of the siphon will be observed turned up 

 a little (g), the object of which is to pre- 

 vent dirt or air bubbles from entering; air 

 or steam in the siphon greatly impeding 

 the circulation, ami requiring in some 

 cases to be removed by what Mr.Fowler 

 calls air plugs. From this application of 

 the Thermosiphon, any person of the 

 slightest ingenuity will comprehend how it may be applied in a hundred 

 other cases, and tradesmen interested will, no doubt, purchase the pamphlet, 

 the plates of which show a variety of ingenious applications. 



97 



