Dry-stone walling kit of tongued blocks with rough front makes use of full size half size strap and quarter size blocks having underside pins homing into lower block grooves.

摘要

The dry-walling kit contains at least four block sizes whose front and rear faces are in a pre-set size ratio to include one oblong solid block (1), one square half-block (2) half the size of the full block, one strap block (3) half the size and height of the solid block (1) and one quarter block (4) half as long as the strap block (3). The block profile is retained from front to back, the four outer corners being bevelled and fitted on the underside with triangularly projecting pins (6) seating into grooves on the adjoining block formed by trapezoidal pins. The kit can be expanded to include seven blocks, with the quarter block solid for the supplementary blocks, here designed as half size, strap and quarter block. The kit accords to irregular wall course building concepts or Alpine walling, with the pins in all lower block layers pointing downwards as opposed to the topmost layer whose pins project upward to form a cover plate.