TO 



find them when you want them is apparent. You have 

 spent much time and money to train these men and, to 

 be able to refer to a complete list of these "helpers" 

 and to find the right man at the right time tends to- 

 ward better organization and efficient work. 



"7" 'Headed Atf aching \ .-' 

 Bo*, InSloi- 1 



FIG. 29. ONE METHOD OF PROVIDING FOR SHAFT 

 HANGERS. 



Shaft Hangers. In factory buildings it is necessary 

 to hang shafting for machinery. This must be ad- 

 justable to accommodate changes and improvements in 

 the apparatus. Fig. 29 shows methods of using slotted 

 pipes for this purpose which have been endorsed by 

 use. 



Signals. Use well understood signals, (a steam 

 whistle is best), to keep the material coming up to the 

 mixer. 



A whistle blown 5 or 10 minutes before starting 



