Proceedings of the fifth annual meeting of the United Typothetae of America : held on October 20th, 21st and 22nd, 1891, in the Scottish Rite Cathedral, Cincinnati, O (1891)
United Typothetae of America. Meeting (5th : 1891 : Cincinnati, Ohio) · [Cincinnati?] : United Typothetae of America · leaf 140
134 UNITED TYPOTHET^ OF AMERICA. This imperfect pen sketch maj represent the rear end of a drum cylinder press, or the delivery cylinder of a two-revolution press. The rod a-a is a copper gas-pipe, three-eighths of an inch in diameter, with holes perforated on the top, one and one-half inches… … to be about one or one and one-quarter inches in height, with a full pressure of gas on the pipes. The gas-pipe is suspended at the ends with flat hooks attached to the side frames of the press and connected at one end with a small rubber gas tube (B),,and this tube is fastened at the upper end to…
Printing
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