The Detroit news: eighteen hundred and seventy-three, nineteen hundred and seventeen, a record of progress: . is warranted in view of the fact that thetwo hours consumed in the acid bath in the old fashioned wooden rocker-tubis now reduced to forty minutes, even when a full-page cut is being etched. in an emergency, the engraving department can produce from a photograph,by the halftone photo-engraving process, a cut, ready to print, in twenty-oneminutes. Such speed is not productive of engravings of consistently high quality,and is not ordinarily attempted. A romantic element in the equipment
The Detroit news: eighteen hundred and seventy-three, nineteen hundred and seventeen, a record of progress: . is warranted in view of the fact that thetwo hours consumed in the acid bath in the old fashioned wooden rocker-tubis now reduced to forty minutes, even when a full-page cut is being etched. in an emergency, the engraving department can produce from a photograph,by the halftone photo-engraving process, a cut, ready to print, in twenty-oneminutes. Such speed is not productive of engravings of consistently high quality,and is not ordinarily attempted. A romantic element in the equipment of the department is the proof press,operated by hand, which is identical in principle and almost so in constructionwith the printing presses at which Benjamin Franklin toiled in his youth. Rotogravure, or intaglio printing is still in its infancy, and has been in usein American newspapers only a half dozen years; but the fidelity of reproduc-tions to the original photographs, the perfect texture of the pictures from shadowto high light, have added new qualities to newspaper illustration, and the process. Engraving and Intaglio Printing. 65 is certain to persist. Its instant appeal to the readers was obvious, and resultedin a clamor for space in the rotogravure section for the publication of new andunusually attractive types of advertising. One expects, in the rotogravure department, to come upon an amazinglycomplex printing press, whereas in fact it is remarkable rather for its it was the imperfection of the presses and not the intricate and costly prOcess of engraving that retarded the development of this fine addition to the news-paper until a half dozen years ago. In its essence, the rotogravure press consistsof nothing more than a fragile looking machine at either end of which, close tothe floor, are a large and a small cylinder. The former bears the engravedcopper printing surface; the latter is an impression cylinder. The engravedcylinder revolves in a tro
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Photo credit: © The Reading Room / Alamy / Afripics
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Keywords: ., bookauth, bookcentury1900, bookdecade1910, bookidcu31924015423563
