consists of two triangular supports, one with a spool hub fastened to its top for the axle of the wheel to run through and the other with the cigar box inclosing the clockwork fastened to it. Figures 150, 151, and 152 show the construction of these supports. Cut strips P and Q 12 inches long and R 10 inches long, and trim off the upper ends of P and Q so when they are nailed together the lower ends will be 8 inches apart; nail strip R to the lower ends of P and Q (Fig. 150). To fasten the spool hub to its support, smear one side of a piece of tape with glue and wind it several times around the spool (Fig. 151), then set the spool on top of the support and press the ends of the tape against the sides of strips P and Q (Fig. 152).
Fig. 149.—Standard for the Ferris Wheel.
The Clockwork Motor for the Ferris wheel is fastened to the cover of a cigar box just as that for the merry-go-round was fastened (Fig. 139), but the length of the box is cut down as much as the clockwork will allow to make the box as square and compact as possible.
It is very necessary to have the axle bearings exactly on a line in order to have the wheel run smoothly, so, in fastening the cigar box to its support, be sure that the cen-
