Christian H. Becksvoort relies on six different support systems to keep table leaves solidly in place. His favorite is a smooth-acting, pull-out slide that can be sized appropriately for end tables or dining tables, but he explains the others, too. Drop leaves require a special joint and hinge, and he talks about why slides are less likely to sag. Drawings illustrate the six methods: spinners, swing arms, swing legs, gate legs, standard hinges, drop-leaf hinges, and swing and crane supports.

From Fine Woodworking #111