new modifica- placed one upon another in the back of the apparatus tions. It is very difficult for an amateur to make a in a drawer, A (Fig. 3). The first plate receives the image. This is a very happy arrangement, since it permits of obtaining a much better idea of the defini- selection, since… … ly valuable document, but with Mr. Carpentier's en- larging frame it is easy to at once obtain a 13x18. ME. CARPENTIER'S PHOTO-OPERA. GLASS AND ENLARGING APPARATUS. The enlarging apparatus (Fig. 5) consists of a square box whose bottom is hinged and carries a frame that tive negative. When, in an…
Patents · Feet · Apparatus · Munn · Exposition · Scientific American · Cable · Sausage casings · Post office · Letters patent · Gold leaf · Circuit court · Trades council · Horse power · York city · Opera glass
Internet Archive · Public domain (published before 1931). Free to use for anything.
