 | Robert Forsyth - 1805 - 668 páginas
...and hardened as much as possible, press upon the edges of the grooves), which acting with continued and increasing force, gradually makes the stone split...straight, though not so smooth, as if it had been made by a saw. This operation is repeated as often as necessary, till the whole stone be cut into slabs... | |
 | Robert Forsyth - 1806 - 656 páginas
...and hardened as much as possible, press upon the edges of the grooves), which acting with continued and increasing force, gradually makes the stone split...fissure nearly as straight, though not so smooth, as if it'had been made by a saw. This .operation is repeated as often as necessary, till the whole stone... | |
 | Robert Forsyth - 1806 - 652 páginas
...and hardened as much as possible, press upon the edges oi the grooves), which acting with continued and increasing force, gradually makes the stone split...straight to the bottom of the stone in the direction ot the line first marked, cleaving it in two parts with a fissure nearly as straight, though not so... | |
 | Edward Cresy - 1847 - 912 páginas
...with a heavy hammer along the whole line, till the stone splits asunder ; the fissure going through to the bottom of the stone, in the direction of the line first marked out, cleaving it into two parts, nearly as straight, though not so smooth, as if cut with л saw. When... | |
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... a triangular cavity below it ; they then strike the wedges successively with a very weighty hammer, one after the other, along the whole line (which makes the wedge, that is formed of the best steel, and hardened as much as possible, press upon the... 