Excerpt from: HOME-MADE TOYS FOR GIRLS AND BOYS BOOKS BY A. NEELY HALL
LOTHROP, LEE & SHEPARD CO., BOSTON Published, August, 1915
A Buzz-saw Whirligig is an interesting toy (Fig. 108).
Lay out a disk about 5 inches in diameter upon a piece of cardboard, locate the position for the spool-end on the center of each face, and make four rings outside of this.
Fig. 108.—The Buzz-saw whizzes when you twist the Cord.
Divide the circumference of the disk into sixteen equal parts, and lay off the teeth as shown. (Fig. 111.)
The spool-ends used for centers should have two holes drilled through them for the twisting cord to slip through, and should be fastened to the disk with glue or brads.
Fig. 111.—Detail of Buzz-saw Whirligig shown in Fig. 108.
A cotton string is best for: Operating the Whirligig.
After slipping it through the holes in the spool-ends, tie the ends together.
To work the toy, slip the first finger of each hand through the loop of each end, and whirl the disk in one direction until the string is twisted from both ends as far as the center.
Then pull firmly on the ends of the string, and the disk will whirl in the opposite direction until the string is untwisted and twisted up again in the opposite direction.
As the strings twist, slacken your hold upon the ends, and when it has wound up tight pull again to make it whirl in the opposite direction.
The disk should whirl very steadily when working right, and the knack of making the string twist so the disk will do so is attained with a little practice.