Louden Window Ventilator 



Specifications 



Special ventilators for higher windows 



Size Window: Fits any window where sash does not exceed 48 inches in height. 



can be furnished, at slight additional cost, on special orders. j -, ■ 



Fixtures Include: 2 shields (one right and one left), two dogs, two braces, I catch and I keeper, 22 screws, and 2 rivets. 

 Finish: Galvanized. 



Fresh air in the barn is as necessary for the comfort and health 

 of the stock as fresh water and pure food. According to experts 

 the average cow consumes more pounds of air than she does of 

 either food or water. A 1,000 pound cow consumes about 224 

 pounds of air daily. 



The Louden Window Ventilator makes possible an abundance of 

 fresh air without injurious draughts. Instead of opening like an 

 ordinary window the sash tilts inward from the top and rests 

 against metal shields, as shown in 

 Fig. 988-A. The cold air, instead of 

 striking the stock directly, is thrown 

 upward, and mingles with the warm 

 air near the ceiling before it comes 

 in contact with the animals. 



When it is necessary to keep stock 

 in the barn during warm weather the 

 window may be opened and raised, 

 as shown in Fig. 988-B, to give a 

 direct and cooling circulation of air 

 throughout the barn. This feature 

 is a decided improvement over the 

 hinged type of window, which cannot 

 be raised. With the Louden Window 

 Ventilator the sash may easily be removed from the window if desired. 

 All photos shown are inside views. 



Fig. 989 is a cross section of a window fitted with a Louden Window 

 Ventilator. It shows the window open and slightly raised. The sash is 

 held in the raised position by two locking dogs, one on each side. 



The shields are made of galvanized sheet steel. They are secured 

 to the casing by screws along the inner edges. Flanges along the 



outer edges, turned in, support the sash when 

 open. The shields are stiffened by brace 

 rods, riveted on. 



The Louden Window Ventilator is made 

 in different sizes to fit any window. To get 

 the proper size, give height of sash. This 

 measurement is absolutely necessary before 

 we can make up the shields. No other is 

 needed. 



The Louden Window Ventilator is the 

 most perfect window ventilator made. It is 

 inexpensive and extremely simple. Specify it 

 when you build or remodel your barn 



Fig. 986 

 Window Closed 



Fig. 988-A 

 Window Open 



Fig. 988-B 



Pat'd Feb. 7, 1916 



Window Open and Slightly 



Raised 



Pigeon Falls, Wis., July 10. 1916. 

 The Louden Machinery Co.. 



St. Paul. Minn. 

 Gentlemen: 



A line or two of comment about the service of 

 Louden Goods: 



The Louden Equipment is the best and most per- 

 fect barn equipment that 1 have ever seen. 



Die Kolden. Kolden Stock Farm. 



Fig. 989 

 Cross Section 



Page One hundred forty-six 



