| 摘要 |
826,793. Building blocks; walls. ALBERTI, R. May 31, 1957 [June 7, 1956], No. 17400/57. Classes 20(4) and 87(1) [Also in Group XL(a)] An interlocking block has two parallel opposite rectangular faces ABCD, EFGH, two adjacent re-entrant faces EADH, GCDH each comprising an angle of 120 degrees, and two salient faces FBCG, FBAE complementary to the opposite reentrant faces. The relationship between the length and width of the block complies with the ratio 1 : (n/2) #3 where n is an integral number. In Fig. 1, n has the value 1, and the length l = 2a, and the height h = a, where a is the projection of an angular side of the end face upon the base surface. In a modified block for use as a foundation stone, at least one angled face is replaced by a flat surface perpendicular to the rectangular side faces. The blocks may be assembled as in Fig. 14 to form hexagonal structures. In a wall structure some of the blocks may be disposed horizontally and others vertically, Fig. 8 (not shown). In a multiple wall structure, Fig. 13, blocks in alternate courses are inverted so as to clamp together adjacent blocks in the preceding course. The blocks may be made of radiation-resistant material with or without a metal casing (see Group III). |
