. A treatise on pharmacy for students and pharmacists. s contained in a covered agate-ware dish, resting in thecopper water-bath, A; after the pills have been dipped, the needle-holder is slowly revolved to facilitate the uniform distribution of the PILLS. 325 gelatin film. When the gelatin has set, the needle-holder may belaid aside, as shown at C, until the coating is sufficiently hard toallow the pills to be removed to the tray of Avire gauze, B, bygrasping the circular plate on the needle-holder with one hand andpulling the handle upward with the other. It is always well toslightly grease
. A treatise on pharmacy for students and pharmacists. s contained in a covered agate-ware dish, resting in thecopper water-bath, A; after the pills have been dipped, the needle-holder is slowly revolved to facilitate the uniform distribution of the PILLS. 325 gelatin film. When the gelatin has set, the needle-holder may belaid aside, as shown at C, until the coating is sufficiently hard toallow the pills to be removed to the tray of Avire gauze, B, bygrasping the circular plate on the needle-holder with one hand andpulling the handle upward with the other. It is always well toslightly grease the perforated disk, through which the needles pass,with petrolatum, to prevent the pills from adhering. The application of a continuous coating of gelatin to pills withoutthe use of needles is in successful operation at several large manu-facturing establishments, but is not available at the dispensing coun-ter, since extensive steam-power machinery is necessary for the Fig. 224 may be seen a cut of probably the only machine of its Fig. Coltons machine for continuous gelatin-coating. kind at the present time; it was designed by Arthur Colton, of De-troit, Michigan, and has a capacity of coating from 6000 to 10,000pills per hour. This ingeniously constructed piece of machinery isoperated by two female attendants in the following manner: Thepills to be coated are placed in the drawer J., which is providedwith a perforated plate in the bottom at the end projecting from thedrying-kiln. The drawer A having been drawj out and so arrangedthat the perforated plate registers over a set of tubes on plate B, thepills are brushed through the perforations by means of a brush mov-ing forward and backward in A, and are firmly held on the tubesby a vacuum, produced by means of t-he pump, P. The tube-plate,B, is fastened by meaus of a clamp to the hood, C, and by revolvingthe latter half way the plate is brought face downward over the pan, 326 PRACTICAL PHARMACY. D, containing th
Size: 1680px × 1488px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade189, booksubjectpharmacy, bookyear1895
