Modern heliographic processes : a manual of instruction in the art of reproducing drawings, engravings, manuscripts, etc., by the action of light : for the use of engineers, architects, draughtsmen, artists, and scientists (1888)
Lietze, Ernst · New York : Van Nostrand · leaf 38
14 MODERN HELIOGRAPHIC PROCESSES. which is supported by the endless cloth, and, in this manner, the paper is kept under tension and moved forward. The rollers are driven, one from the other, by means of gear-wheels, and are set in motion by the fly-wheel I, which is fastened to the shaft of the… … Fig. 10. the roller R, by means of the screws B, and swiftly turned, in order to wet its felt covering uniformly. After this has been done, the paper is guided over the tension segment A, and the roller R; then the roller T is brought in contact with the paper on roller R, the fly slowly turned,…
Photographic reproduction of plans, drawings, etc · Photography
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
