The head and body 

 of the suit are of 

 cast metal riveted. 

 The arms and legs, 

 however, are of can- 

 vas reenforced by 

 coils of strong metal 

 tubing. Flexibility 

 is thus given them 

 while their ability 

 to protect the limbs 

 from being crushed 

 by the enormous 

 pressure of the wa- 

 ter is not impaired 



The heavily laden 

 divers are lowered 

 by single steel cables 

 which enclose the 

 telephone wires 

 through which the 

 orders are trans- 

 mitted. Oxygen 

 apparatus is at- 

 tached to each suit. 

 In this enough oxy- 

 gen is stored to last 

 for eight hours. The 

 weight of the suit 

 is an advantage 



•--. 



Salvaging in Armor 



/%S a diver goes down, the water pressure in- 

 J-\ creases at the enormous rate of over three 

 tons a square foot for every one hundred 

 feet. This water pressure is overcome by supply- 

 ing the diver's lungs with air of an equal pressure. 

 Evidently, the air pressure has to be increased the 

 farther down the diver goes; but if at any time 

 this pressure becomes either more or less than the 



water outside, the diver will be injured or even 



killed. 



This danger is entirely done away with by the 

 armored diving suit invented by B. F. Levitt, of 

 Toledo, Ohio. His suit entirely separates and 

 protects the diver from the water. Manganese 



93 



