BALANCING BARRISTER

The body may be sawed from 3/8" stock as outlined in the drawing. Find

its center of gravity by balancing it on a knife edge, crosswise, and

then lengthwise. Draw lines along the knife edge where it balances.

Where these intersect is the center of gravity. Bore a hole at this

point of intersection perpendicular to the body, and so as to fit

tight on a 1/4" dowel rod. Make two discs 1" diameter, 1/4" thick,

with a hole to fit tight on the dowel on each side of the man.

Color his shirt red, hat and trousers blue, arms and stockings white,

and dowel, shoes and parallel bars black.

The frame on which the man should balance (Fig. 11), with his head

just a little the lighter, is made of seven pieces. The base, 1/2" x

2" x 12"; the four uprights, 1/4" x 1" x 5-3/4", and the two bars,

3/8" x 3/4" x 15", are firmly fastened together so that the two bars

will be parallel and horizontal.

When the man is properly balanced, which may be accomplished by

whittling off a little stock where needed, he should roll from end to

end of the bars by giving the dowel a twist between two fingers.

[Illustration: Fig. 11.]

[Illustration: BALANCING BARRISTER]

Educational Toys Consisting Chiefly of Coping-Saw Problems for Children in School and the Home · 第 73 / 127 题