Blocks are alſo pieces of wood belonging to ſhips, in which the ſhivers, or ſheaves, of pullies are placed, and wherein the running ropes go. … The blocks are then jambed up edgeways with wedges in a clave, and the ſheave-holes are made in this manner: the length and breadth are firſt gouged out, and holes are bored half way through the block, along the part gouged out, with an augre of the ſize of the ſheave-hole; then the ſheave-hole is gouged and bored on the oppoſite ſide in the ſame manner, ſo as to meet the oppoſite holes.