268 GOODYEAR ON GUM-ELA3TIC. 



SATCHEL LIFE-PRESERVER. 



This article is the same as that described as a double satchel, 

 or travelling-bag, page . When filled with clothing, or in- 



flated with air, it answers the same purposes as the two kinds 

 before described, as a life-preserver. 



JACKET LIFE-PRESERVER. 



This form of life-preserver has been introduced to some extent 

 in the United States. 



When the article is made in separate compartments, and in- 

 flated in separate tubes, it may also be considered a good and 

 safe one. An improvement has recently been made in these 

 jackets by perforations between the compartments, hke the ven- 

 tilated cushion life-preservers. See plate , fig. . 



NAUTILUS LIFE-PRESERVER. 



The nautilus life-preserver, which is represented by fig. , 

 was patented in the United States in 18 . It consists of a spiral 

 wire, covei'ed with gum-elastic fabrics, in one apartment, but is 

 somewhat objectionable on account of its bulk. This article 

 may be considered a safe life-preserver, but not so safe as the 

 self-inflating nautilus. 



SELF-INFLATING NAUTILUS. 



This is manufactured like the self-inflating beds and cushions 

 before described, except that the stiffenings between the com- 



f5^ 



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