290 



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Fig. 1 

 Sizes 12 and 18 inch 



Weight crated 

 Ventilator No. 5, 12 in.— 36 lbs. 

 Ventilator No. 6, 18 in. —70 lbs. 



Fig. 3 



Ventilator No. 7 



Size 12 inch 



Weight crated 

 36 lbs. 



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Fig. 4 



Sizes 24 and 30 inch 



Weight crated 



Ventilator No. 3, 24 in. — 206 lbs. 



Ventilator No. 4, 30 in.— 320 lbs. 



