An improved glass block for use in pavement or wall light construction

摘要

680,584. Pavement lights. ESPOSITO, G. June 30, 1950 [July 1, 1949], No. 16346/50. Class 20(iii) Projections Q, Q' and recesses P, PSP1/SP, Fig. 3, are formed round the sides of the glass blocks V, VSP1/SP of a waterproof pavement or wall light structure to form an interlocking engagement with the concrete, or cement N, binding the blocks together. Vertical grooves, Fig. 10, may also be provided, alternative arrangements for interlocking being shown in Figs. 6, 7, and 9.