. The half-tone process. A practical manual of photo-engraving in half-tone on zinc, copper, and brass. , for obvious reasons. A paper knife for cutting up the proof paper, a pairof long shears for trimming off margins, a pair of smallscissors for cutting out large overlays, and an overlay knife for cutting out intricateoverlays (usually provided forthe use of the proofer), as wellas a set of ink knives, a turps orbenzine can (so arranged thatdrops can be shaken out withoutremoving the stopper), aboutcomplete the modest require-ments of the proofer. A goodbench on which to lay out hispaper and
. The half-tone process. A practical manual of photo-engraving in half-tone on zinc, copper, and brass. , for obvious reasons. A paper knife for cutting up the proof paper, a pairof long shears for trimming off margins, a pair of smallscissors for cutting out large overlays, and an overlay knife for cutting out intricateoverlays (usually provided forthe use of the proofer), as wellas a set of ink knives, a turps orbenzine can (so arranged thatdrops can be shaken out withoutremoving the stopper), aboutcomplete the modest require-ments of the proofer. A goodbench on which to lay out hispaper and proofs should beprovided alongside the press, and it should have drawersin it, trays for paper and for blocks, and a cupboardfor the rollers and inks, if the very best accommodationis desired. In large establishments it has become quite a commonpractice to add a platen power press, such as thoseknown as the Colt and Phoenix, which are bothtypical and very popular types of this class of for printing from the blocks are undertaken, theassumption being that the customer will have conn-. THE MOUNTING AND PROOFING. 177 dence in the photo-engraver getting the best possibleresult from the blocks. Moreover, the photo-engraverhas the opportunity of running off his own probably the chief reason that has led to the intro-duction of these machines into the photo-engravingestablishment is that it is believed they are betteradapted for the proofing of three-colour work than handpresses, owing to the automatic inking features andregistering apparatus. Some photo-engraving firmshave gone still further, and introduced stop cylinder ortwo-revolution presses for dealing with three-colourwork, on the ground that the blocks were so inadequatelyprinted by the average letterpress printer. The greatimprovement in the handling of half-tone and three-colour blocks of late years by the printing trade, how-ever, has removed the necessity for photo-engraversstepping outside th
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Keywords: ., bookcentury1900, bookdecade1900, bookidhalftoneproc, bookyear1904
