432 



AGRICULTURAL ENGINEERING 



Doors. The doors for poultry houses are found to be 

 the most convenient when hung on double-acting hinges. 

 Dcors so hung can be pushed open even if the hands are filled. 



Partitions. The partitions in continuous houses may be 

 made of boards or plaster. It is quite a common oractice 

 to use poultry netting for the upper part, but the lower part 

 should always be made solid. 



Ventilation. Although flues or the King system (see 

 chapter on ventilation) could be used to ventilate poultry 



Front Elevation 



Window for" 

 D<js> Bo* 



Mb^"*™ 6 



Fig. 278. Front elevation accompanying Fig. -277. 



houses, ventilation is generally secured by means of cloth 

 fronts. For other farm buildings this means of ventilation 

 has not proven satisfactory, but has been successful with 

 poultry houses. 



Types. Poultry houses are constructed after two plans: 

 (1) the colony system, consisting of isolated houses usually 

 made portable for each flock; and (2) the continuous system, 

 consisting of several adjoining units with pens for each. 



