98 



GOODYEAR ON GUM-ELASTIC. 



screw or spring lever. Another tap and faucet of the common 

 pattern, fig. , instead of being made of wood, is made of 

 caoutchouc whalebone, the tap being packed with elastic com- 

 pound. 



ENGINE AND BELLOWS VALVES. 



Several of the fabrics are, on account of their air-tight and 

 pliable properties, suitable materials for the valves of steam and 

 other engines, and also for the valves of house, organ, and 

 smith's bellows. 



