QUARRIES. 359 by hand and provided with a special system of demoulding. The moulds can be easily changed according to the dimensions … Fig. 604. — Quarry Press (Jager). Fig. 605. — Quarry Press (Laeis et Cie.). of the quarries to be stamped. Sometimes jointed levers (Fig. 606) are substituted for the compression screw. The presses may also be worked by steam (Figs. 607, 608); they are