. A treatise on pharmacy for students and pharmacists. Procters lozenge-board. divisions of -g^ of an inch. Through one slot of each plate asquare-shouldered screw passes, and is screwed in until it presses the Fig. Harrisons lozenge-board. plate close to the side of the board, but still permits it to moveeasily; through the other slot in each plate passes a set screw, which COXFECTIOXS AXD LOZEXGES. 339 euters the screw-plate before mentioned. When the plates havebeen adjusted to a given height the set screws are turned until theyprevent motion of the plate. Harrisons lozenge-board (see
. A treatise on pharmacy for students and pharmacists. Procters lozenge-board. divisions of -g^ of an inch. Through one slot of each plate asquare-shouldered screw passes, and is screwed in until it presses the Fig. Harrisons lozenge-board. plate close to the side of the board, but still permits it to moveeasily; through the other slot in each plate passes a set screw, which COXFECTIOXS AXD LOZEXGES. 339 euters the screw-plate before mentioned. When the plates havebeen adjusted to a given height the set screws are turned until theyprevent motion of the plate. Harrisons lozenge-board (see Fig. 227), which has been knownfor some years, consists of two frames of wood, of which one moves Fig. 22S. a -, MS wssm Harrisons lozenge-board (sectional view). forward and backward inside of the other in grooves cut into theouter frame; the board on which the mass is rolled rests firmly onthe inner frame, and has fastened to its bottom two bevelled stripscorresponding to similar strips attached to the frame. By means of Fig. 230. Fig. 229.
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Keywords: ., bookcentury1800, bookdecade189, booksubjectpharmacy, bookyear1895
