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Popular Mechanics Co.

"The Boy Mechanic: Volume 1 700 Things for Boys to Do"


One way of making the air connection with the outside is to bend
the tube F around and stick it through the keyhole. Few burglars
would ever think to blow in the keyhole.
--Contributed by Orton E. White, Buffalo, N. Y.

** A Homemade Water Motor [66]
By MRS. PAUL S. WINTER
In these days of modern improvements, most houses are equipped
with a washing machine, and the question that arises in the mind
of the householder is how to furnish the power to run it
economically. I referred this question to my husband, with the
result that he built a motor which proved so very satisfactory
that I prevailed upon him to give the readers of Amateur Mechanics
a description of it, hoping it may solve the same question for
them.
A motor of this type will develop about 1/2 hp. with a water
pressure of 70 lb. The power developed is correspondingly
increased or decreased as the pressure exceeds or falls below
this. In the latter case the power may be increased by using a
smaller pulley. Fig. 1 is the motor with one side removed, showing
the paddle-wheel in position; Fig. 2 is an end view; Fig.


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