. Bacteriological apparatus : pathological, biochemical. Scientific apparatus and instruments; Bacteriology; Chemical industry. ®ttr HtU (Eor^nratiun, W^aci}tsttr, 14235 14230 Microphotographic Camera, Type GPA—Bausch & Lomb. Recom- mended to those who wish an apparatus of unusual rigidity and mechanical accuracy, particularly where high magnifications are to be undertaken; support for microscope is adjustable for height so that any standard type of microscope may be used and brought into alignment with the center of the camera parts; microscope plate may be turned 90° to enable one co
. Bacteriological apparatus : pathological, biochemical. Scientific apparatus and instruments; Bacteriology; Chemical industry. ®ttr HtU (Eor^nratiun, W^aci}tsttr, 14235 14230 Microphotographic Camera, Type GPA—Bausch & Lomb. Recom- mended to those who wish an apparatus of unusual rigidity and mechanical accuracy, particularly where high magnifications are to be undertaken; support for microscope is adjustable for height so that any standard type of microscope may be used and brought into alignment with the center of the camera parts; microscope plate may be turned 90° to enable one conveniently to look directly into micro- scope for searching the field to be photographed; supporting stand, of cast iron and massive construction, contains two upright sup- ports that carry the optical bed at height of 42 in. from floor; optical bed, graduated in millimeters and centimeters with every fifth centi- meter numbered, is 78 in. long and 4% in. wide; illuminating system consists of 5-ampere, 90° hand-feed arc lamp with rheostat for 110 volts, aspheric condenser in focusing mount, support for ray filter, one ground glass, one blue and green glass filter, all mounted on support adjustable for height, with micrometer adjustment for vertical and lateral movement; camera consists of supports carry- ing tapering bellows with draw of approximately 50 in., having wire supports in center, the rear support carrying box of neatly fin- ished hard wood, with reversible adapter carrying special laboratory plate holder for 8 x 10 in. plates and kits for small sizes, also with two focusing screens, one ground glass with clear center and one clear with graduated cross lines in center; automatic shutter, with steel leaves having maximum opening of 40 mm, may be set for in- stantaneous, bulb or time exposure; microscope plate is of metal, 7% x bVi in., and provided with leveling screws to serve in bringing any microscope into exact alignment with optical axis of camera Each
Size: 2301px × 1086px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, booksubjectscientificapparatusa
