Fig. 105a. the wireless pup. the slot in the floor of the dog house
How to Make a Wireless Pup.
—This is a most remarkable bull-pup for he will jump out of the kennel when you or any one else calls him, when you clap your hands or on any other occasion when a loud noise is made.
Always make a dog-house for a pup before you catch him so that when he gets home he’ll know he’s there. Use smooth ¹⁄₂ inch thick pine boards for the house and cut out a piece 7 inches wide and 8 inches long for the floor. Cut a slot clear through the board 1³⁄₄ inches from one end and parallel with the edge of the back and have it ¹⁄₂ an inch wide and 1¹⁄₄ inches long; then on each end of the slot cut a groove ¹⁄₂ an inch long and ¹⁄₄ inch deep as shown at [A in Fig. 105].
Fig. 105b. the back end of the dog house
Cut out two pieces for the sides of the house 4 inches wide and 8 inches long and screw them to the floor. Now bevel off the top edges of the sides with a plane to allow for the slope of the roof but before you put it on you must install the wireless apparatus that makes the pup jump out of the dog-house. Make a back out of a board 7 inches square as shown at [B].
This apparatus consists of five chief parts and these are (1) a spanker; (2) a solenoid; (3) a stiff piece of clock-spring; (4) a telephone transmitter and (5) two or three cells of dry battery.
