'^jm* }*^kih^<iiiiii*M 



Cross Section 



of the 



Louden 



Cupola 



We also use our own specially designed moulding with angle-braced wood 

 frame inside, which adds great strength to the moulding and base proper, 

 besides being very artistic. We only use the best of galvanized material in 

 their construction including all galvanized bolts and washers. 

 They are built strong and will stand windstorms and will not 

 get out of shape, and are also screened to keep out birds. 

 They are built on scientific principles for ventilation and it 

 does not matter which way the wind blows or what the 

 surroundings are as the Louden Cupola will always have an up-draft 

 within and will ventilate the building well. They require no paint- 

 ing and will last longer than the ordinary frame building. They 

 do not weigh one-third as much as the old style wood cupola and 

 will not sag the roof. The Louden Cupola is furnished with 30-inch 

 Full Body Gold Leaf Weather Vane, the best that can be made, 

 and one that will stay bright, in the following designs: Horse, Cow, 

 Sheep, Pig or Rooster. In ordering always state the kind of 

 weather vane you want. 



Louden Ventilators 

 Fig. 1268 



Every living creature must have 

 fresh air — none can live without it. 

 When air enters the lungs and is 

 breathed out, there has been removed 

 from it the life-giving qualities. It 

 has changed to poisonous gas. 



The warmer and better a barn is 

 constructed the more necessary is artificial 

 ventilation. On thousands of farms there are 

 "well built" barns where lack of pure air is 

 sapping the vitality of the stock. Upon open- 

 ing the doors of such a barn in the morning a 

 man would almost be nauseated by the sick- 

 ening, poisonous air were it not for other more 

 noticeable but far less dangerous odors. 



An average 1 , 000-pound animal will consume 

 about 3,000 cubic feet of air in 24 hours. This 

 "consumed" or used air must be removed from the 

 barn and fresh air must be allowed to enter to 

 take its place. 



Most new barns have vent flues to carry off 

 this impure air, but in many barns these outlets 



are not doing the work for which they are intended. In some cases this failure is due to a 

 or "ventilator" that hinders rather than assists the ventilating system. 



Note: We do not furnish bases with Louden Ventilators. Different roof pitches and 

 different conditions for attaching make it impossible to do so. 



Fig. 1268 



cap 



Page One hundred forty-two 



