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346 IDEAL HOME LIFE
will be just in front of them. Through these insert a dowel rod which fits tightly; put the spool through at J, and it acts as a pulley.
The braces are 5/8 by 5/8 by 35 inches (length may vary). They are fastened to the mast and base with a strip of copper screwed at the top so the mast may move easily.
Ask your mother for two basting thread spools and an ordinary one. These will be your drums. Cut three pieces of wood 7/8 by 2 1/4 by 3 inches. Taper like K. Put a dowel rod through your large spools, tight -enough so that the spools will not revolve. Leave enough out for handles. Bore holes in your pieces with a bit one size larger than the dowels used. Put your spools in place, one each side of the 7/8-inch pieces. Cut a board to hold the spools, 1/2 by 6 by 15 inches, and place directly back of the mast so that the middle piece holding the spool will be in line with the mast. Screw the piece to the 6 by 15-inch board, then fasten to the base 4 inches from the back, as in Figure 44. On top of the spools nail a piece of 1/2-inch wood, as long and wide as will cover spools. In the middle upright bore a 1/4-inch hole and insert a dowel rod. Glue tightly so spool will revolve. Make handles for each spool. .
String up the derrick so that the small spool will turn the collar—one raise and lower the boom and the other the bucket.
Any bright boy can rig up a brake to keep the spools from turning.
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Bird Houses
by grace vincent
What boy has not been interested in watching some bird build its nest, feed its young, and help them to learn to fly? If the birds want to live with us we should encourage them by letting them alone. Let them be free from fear. Try to keep all cats away from them; put out a dish large enough for |
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