832 



Popular Science Monthly 



It Bathes, Massages, and Dries Us. 

 Would That It Dressed Us, Too 



A RECENTLY in- 

 vented bathing 

 machin'e not only 

 washes the btfdy, but 

 also gives a massage 

 and dries the skin with- 

 out the use of a towel 

 in less time than is re- 

 quired by the usual 

 process. The machine 

 takes up so little space 

 and requires so little 

 water that it may be 

 used in a sleeping car 

 or in other places where 

 space or water is lim- 

 ited. For army use it 

 meets every require- 

 ment of sanitation and 

 speed when mounted 

 on a truck so as to be 

 moved about as needed. 

 The body is thor- 

 oughly cleansed by a 

 series of brushes driven 

 at will at either high 

 or low speed. Each 

 brush is eight inches in 

 diameter with three-inch bristles. The 

 brushes are hinged at the top on ball joints 

 so as to open out wide for a fat man or close 

 in for a thin one. The foot or arm can 

 be easily thrust between any two of the 

 brushes and thoroughly washed. An ad- 

 justable pedestal at the bottom is easily 

 moved up or down to accommodate a 

 tall or short person. Above are the 

 claims which, if true, are certainly re- 

 markable. 



| C All the moving parts are electrically 

 operated. The insulation and connec- 

 tions are so designed that the bather 

 takes no chance of getting a shock. 



Universal 



joints 



The bathing machine requires so' 

 little space and water that it can 

 be set up even in a sleeping car 



to the level of the liquid in the jar. At the 

 same time the liquid enters the opening in 

 the outer tubes and 

 traps the air above it. 

 This subjects it to 

 hydrostatic pressure, 

 which increases with 

 the depth. The air in 

 the bulb is forced up- 

 ward by the pressure of 

 the liquid until it rises 

 over the point where the 

 bulbs join the main tube. 

 The air raises the 

 liquid standing in the 

 main tube to the bend 

 in the siphon and it 

 immediately starts to 

 flow downward. 



As soon as the steady 

 flow begins, the pres- 

 sure is. diminished and 

 more water is drawn 

 through the injector 

 into the" main tube. 

 As the water rises high- 

 er in the bulb the air 

 which is sandwiched 

 between little columns 

 of water in the delivery 

 tube is expelled. It is 

 only a matter of seconds for all the air to 

 be expelled and the apparatus then performs 

 its work like any other siphon. 



Air bubble rises 

 with water 



Revolving 

 •brashes 



{Adjustable 

 Ipedestal 



S— Water forced up 

 \>-Trapped air 



Water under 

 hydrostatic pressure 



A New Siphon That Starts Itself 

 Without Suction or Pumping 



AN automatic siphon has been perfected 

 L recently which seems to have a fine 

 disregard for the law of physics that a 

 liquid can rise no higher than its source. 

 The device is exceedingly simple. It is 

 constructed along the usual lines except 

 that the end which is placed in the liquid 

 has three tubes instead of one. The liquid 

 enters through the center tube and rises 



Water' in outer "Water in central Pressure of trapped 



openinq traps opening rises to air forces liquid in 



air above and level of liquid central openinq up- 



is subjected to in flask ward over bend in 



hydrostatic pressure delivery tube 



Diagram showing the siphon which requires 

 no pumping or suction to start the flow 



