Pair of mating bricks in mosaic pattern

摘要

The bricks (A,B) have mating convex- and concave-curved faces (10a,10b). One (A) has two straight faces (11,12) at right angles to each other and joining onto the curved one. The other (B) has three straight faces. Two of these (13,14) are of the same length at right angles to each other and inclined to the sets of lines. One of them and the third face (15) join onto the curved one.One of the straight faces (11) of the first brick can be of the same length as the third one (15) on the second, while the other (12) is of the same length as the line joining the ends of the first two faces (13,14) of the second brick.