plest way, and makes a light, easy-running vehicle. The bed will be cut of a different pattern, however, as will be seen in Fig. 162. Lay out the piece to the dimensions shown upon this drawing, and then cut it out, making a mortise in each end for the wheels to fit in. The spool wheels should be mounted in the same nanner as those of the railway cars, for which see Fig. 80, Chapter VI, and the directions upon page 51. One end of spool A should be pivoted with a longer finishing nail than those used for
Fig. 162.—Top View of Wooden Frame.
the other pivots, so that when driven in place about half an inch will project beyond the frame. A small silk spool should be fastened upon this for a belt-wheel (see B, Fig. 162). The hole in one of these spools is about three-sixteenths of an inch in diameter, so, in order to make it fit tightly upon the nail, it is necessary to fill in around the nail with sealing-wax. To do this, turn the wooden frame upon its edge and place the spool over the nail, being careful to get the nail in the exact center of the hole. Then hold a stick of sealing-wax over the spool, and with a lighted match melt the end and allow it to drip into the
