352 



Popular Science Motithly 



Mike Has a Nose of Brass, But He 

 Should Worry 



IT IS being demonstrated to the folks 

 of Mt. Healthy, Ohio, by old Mike, 

 the faithful horse of 

 the street-cleaning 

 department, that a 

 real nose is quite a 

 superfluous thing. 



Now if Mike had 

 relied on his own 

 natural nose he would 

 have been dead long 

 ere this. 



When Mike's nose 

 ceased to work prop- 

 erly some five years 

 ago, and it seemed 

 that Mike would die 

 of suffocation, Joe 

 Stoppel, his owner, 

 said it would be a 

 shame to let a nice 

 horse like Mike go 

 to the dogs merely 

 because he hadn't 

 the use of his nose. 



So Stoppel consulted a horse doctor who 

 told Stoppel to cease grieving, because he, 

 the doctor, could give Mike a new nose 

 by way of his neck. 



The doctor made a hole in Mike's neck 

 and opened the windpipe and put a tube 

 into it. At the outer end of the tube he 

 fastened a brass disk which may be seen 

 in the picture. 



All the air Mike breathes goes through 

 the disk, up the tube and down Mike's 

 windpipe. On cold days Mike's brass 

 nose even emits steam. 



"And he's better'n ever now," says 

 Stoppel. "Giddap Mike." 



This horse breathes 

 The small brass disk 



at which point the ventilating section of 

 the stack terminates. 



In contracting the stack from a diame- 

 ter of ten feet, six inches at the base to 

 six feet, ten inches at the top, the sec- 

 tions were tapered 

 in a novel manner. 

 In the form were a 

 number of tapering 

 slats. The sections 

 were made smaller 

 and smaller by re- 

 moving one slat from 

 the form each time a 

 section was laid. 



The engine room 

 likes the improve- 

 ment. Almost always 

 engine rooms are the 

 most poorly venti- 

 lated regions in a 

 whole building. We 

 anticipate there'll be 

 a big rush of en- 

 gineers to Los An- 

 geles, now that we've 

 published this 

 article. 



through his neck. 

 indicates the spot 



Carrying Off Smoke and Foul Air in 

 the Same Smokestack 



A DOUBLE-WALLED stack, which 

 acts as a combined ventilator and 

 smokestack, has been built in Los Angeles, 

 California. The foul and hot air from 

 the engine room enters at the bottom of 

 th2 stack, passes up through a sjnicc be- 

 tween the outside concrete wall and an 

 inner firol)rick wall and out of ventilators. 

 The.se ventilators resemble windows and 

 are placed about half-way up the stack, 



Ventilators — 

 Fire-wa 



A double-walled smoke-stack with an 

 inner compartment for smoke and an 

 outer compartment for hot and foul air 



