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T YP/CAL A/R FLOW ~ REGULAT/ON <br />BELT ENTRY <br /> <br />Z <br />a: <br />H <br />W <br />0: <br />• <br />$INI IYONq <br />IMIInQ G~11 OBI <br />10 ~IfYIn GIG <br />FACE <br />W <br />Y ~ <br />F J <br />Z W <br />m <br />EXPLANATIONS <br />I. Where a return alr course does not run directly adjacent to <br />a belt air course, steel tubing ,overcasts ,etc. are used to <br />connect the return air course to the Delt alr course. The air <br />is regulated by the number of tubas. Minimum diameter will <br />be 19 <br />2. Where a return air course tloes run directly adlacent to a <br />belt alr course, blocks taken out Of or holes in steel stopplnq <br />will direct and regulate belt air. <br />3. In generol belt air will be directed outby except where vent- <br />ilation dictates it be directed inby. At no time well belt air <br />De used to ventilate ine face area. <br />L-~ <br />~~•u <br />now .n vooglnq ro rpwan <br />9 Ginel Gal OV rG ryNrn. <br />~ - { <br />~- IRTAKE <br />~ ~_ <br />-30- <br />