Tray Rocked Automatically by a Weight
The tray holder A is pivoted on the uprights C with pins EE. The uprights are fastened to a base, B. Two braces, D, one on each side of the upright C, limits the tip of the tray holder A. The weight F works as a pendulum, which automatically rocks the tray when set in motion.—Contributed by Abner B. Shaw, No. Dartmouth, Mass.
Kite-Line Traveler
The amusement of kite flying can be broadened by adding the kite-line traveler shown in the sketch. The frame of the traveler is made of poplar, spruce or soft pine, 1/4 in. square. The horizontal piece is 24 in. long and the piece to which the wings are fastened is 8 in. long. This piece is cut so it will have a slight slant. The brace is a mitered piece, 13 in. long. The frame is fastened together with small brads, giving it the appearance shown in Fig. 1.
Traveler Details (Fig. 1)
After the frame is finished, the traveler wheels are made and attached. They should be 1/4 in. thick, about 1-1/4 in. in diameter, and have a groove cut 3/16 in. into their faces. The pattern for cutting the bearings is shown in Fig. 4. These are bent at the places shown by the dotted lines and attached to the main frame stick as shown by BB in Fig. 3. The end view of the bearing is shown in Fig. 5. The metal is bent in as shown by AA, so that the wheel will rotate without much friction.
(Fig. 2)
