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d:double [2018/03/30 02:05] (current)
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 +<< [[contents:​index| Dictionary Index]] << [[contents:​d|Definitions under D]]
 +====== Double ======
 +A sheet that is twice pulled and [[l:​lift|lifted]] never so little off the [[f:​form|form]] after it was [[f:​first-pull|first pulled]], does most commonly (through the play of the [[t:​tympan-joints|joints]] of the tympan) take a double impression: this sheet is said to double. Or if the pressman run in so, as the foreside of the [[p:​platen|platen]] print with the [[f:​first-pull|first pull]] into part of the second pull, or the hind edge of the platen print with his second pull into part of his first pull; either of these twice printing is called //​Doubling//​.
 +Doubling also happens through the loose hanging of the platen, and through too much play the tenons of the [[h:​head|head]] may have in the mortises of the [[c:​cheeks|cheeks]];​ and indeed through many wearings and crazinesses that often happen in several parts of the press. —// M//.
 +Moxon'​s account of doubling and its causes refer to the two pull wooden presses, but some of them apply equally to iron presses. In [[c:​composing|composing]],​ the term is applied when a word, a line, a sentence, or any part of the [[c:​copy|copy]] is composed twice; that is, if the compositor'​s eye catch a part that he has already composed, and he repeats it.