LOCOMOTIVE ENGINES . 549 and giving elasticity to the stay . This to a slight extent may be advisable , but it should be borne in mind that the middle part must … a , Fire - box plate . Fig . 397 . — Fire - box Stays . b , Outside fire - box plate . C , U piece . a a , Plates , b , Parallel stay . C , Curved stay . d d , Screwed parts . be of sufficient strength to resist the direct pressure , and we believe that the elasticity of stays in narrow water…
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