PRAIRIE FARMER'S POULTRY BOOK 



satisfaction that comes through owning a nice flock, and have 

 a few more dollars for Christmas, if she is willing to go to the 

 extra trouble of selling her surplus good stock for breeding 

 stock, instead of handing it over to the itinerant buyer. She 

 cannot do it without some kind of advertising, and the right 

 kind is by far the cheapest. Hiding your light under a bushel 

 does not pay in these strenuous days. 



Time Switch for Henhouse 



HERE is a simple device for turning on electric lights in the 

 poultry house in the morning, so as to get the hens to 

 work early. Whenever the alarm goes off, the winding stem 

 or key for the alarm -begins to revolve and a string wrapped 

 around this key or around a spool fastened to it will exert quite 

 a strong pull, quite enough to operate the trigger which allows 

 the knife switch to be pulled into place. In fact, the alarm 

 should be wound only a turn or two so that too strong a pull 



D-Z*4. /t/arm C/k/i Time Jir/M. 



will not be developed and alarm run too long. The arrange- 

 ment is shown in the diagram (D-244), S being the single- 

 blade knife switch which turns on the feeding pen lights, T is 

 the toggle trigger which holds the switch open, W the weight 

 or spring which closes the switch, and K the alarm winding 

 key with a string which pulls on the trigger when the alarm 

 goes off. A trigger and weight are necessary, as the switch 

 contacts will be burned unless the switch is closed quickly. 

 The trigger should be of the toggle type ; that will support the 

 weight easily as long as it is straight, but which will double 

 down whenever a small side pull is applied near the middle. 

 Such a toggle could be made out of an ordinary folding foot 

 rule. 



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