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The Boy Mechanic, Book 2

Part 2 — To Prevent Shade Rollers from Unwinding

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Obtain a stick for the hem on the lower end of the shade that is 2 in. longer than the shade is wide. Place two small wood screws in the window casing below the shade roller in such a position that they will catch the ends of the stick when the shade is raised to the top.—Contributed by Harry E. Kay, Ossining, N. Y.

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