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National Fantasy Fan, v. 5, issue 6, September 1946
Page 1
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DUPLICATING by Earl Kay and Walter Dunkelberger (Previous chapters of this series appeared in the February and April, 1945, issues of The National Fantasy Fan) Now that you have a good stencil cut and are ready for the reproduction process, it might be well to ponder a moment on the fundamentals behind this process. You have watched, and possibly have performed the task of lettering by using a stencil -- tracing already cut out letters, or weeping a broad brush over a cut-out stencil firmly held to a surface which is to be lettered. It is this latter method which is the fundamental principle behind our mechanical duplicating(mimeograph). A mechanical duplicator consists fundamentally of a stencil(already discussed), a source of printing fluid (ink pad) and a method of pressing the printing fluid thru the stencil on to the surface on which you desire the printing to appear. In reproducing by the means we have under discussion it has been found that moving the surface to be printed between a rotating drum on which the stencil has been placed and a roller (which presses the surface against the stencil squeezing the printing fluid through it) is the most efficient. We shall group our discussion in the following manner: I, rotating drum; II, Ink pad; III, Impression roller; IV, Surface to be printed; V, Feeding mechanism; VI, Slip sheeting. I. ROTATING DRUM: This cylindrically-shaped object holds the ink pad over which the stencil is held by suitable clamps. The drum is then rotated by an attached handle. The drum also serves other purposes. On some machines it is hollow and the interior is easily accessible. In such a case the drum's surface is perforated and the ink pad may be inked from the back thru the perforations. This inking process may be performed by the manual use of a long-handled brush, or by some automatically moved, brush-equipped, ink container. Whichever method is used, this "inside inking" is the most convenient for the amateur publisher, for it keeps him from getting inky fingers while removing the stencil to reink the pad beneath it for long runs. The closed drum necessitates the removal or lifting of the stencil while ink is applied under the stencil. It is a very clever operator who can apply just the right amount of ink to the drum. Too much and the first few copies rum thru are blotched. Not enough and the job has to be done over. The drum must be kept clean and the bearings lightly -- tho well -- oiled for the best results. Paper lint mixed with ink causes more trouble for duplicating operators than all other things combined.
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DUPLICATING by Earl Kay and Walter Dunkelberger (Previous chapters of this series appeared in the February and April, 1945, issues of The National Fantasy Fan) Now that you have a good stencil cut and are ready for the reproduction process, it might be well to ponder a moment on the fundamentals behind this process. You have watched, and possibly have performed the task of lettering by using a stencil -- tracing already cut out letters, or weeping a broad brush over a cut-out stencil firmly held to a surface which is to be lettered. It is this latter method which is the fundamental principle behind our mechanical duplicating(mimeograph). A mechanical duplicator consists fundamentally of a stencil(already discussed), a source of printing fluid (ink pad) and a method of pressing the printing fluid thru the stencil on to the surface on which you desire the printing to appear. In reproducing by the means we have under discussion it has been found that moving the surface to be printed between a rotating drum on which the stencil has been placed and a roller (which presses the surface against the stencil squeezing the printing fluid through it) is the most efficient. We shall group our discussion in the following manner: I, rotating drum; II, Ink pad; III, Impression roller; IV, Surface to be printed; V, Feeding mechanism; VI, Slip sheeting. I. ROTATING DRUM: This cylindrically-shaped object holds the ink pad over which the stencil is held by suitable clamps. The drum is then rotated by an attached handle. The drum also serves other purposes. On some machines it is hollow and the interior is easily accessible. In such a case the drum's surface is perforated and the ink pad may be inked from the back thru the perforations. This inking process may be performed by the manual use of a long-handled brush, or by some automatically moved, brush-equipped, ink container. Whichever method is used, this "inside inking" is the most convenient for the amateur publisher, for it keeps him from getting inky fingers while removing the stencil to reink the pad beneath it for long runs. The closed drum necessitates the removal or lifting of the stencil while ink is applied under the stencil. It is a very clever operator who can apply just the right amount of ink to the drum. Too much and the first few copies rum thru are blotched. Not enough and the job has to be done over. The drum must be kept clean and the bearings lightly -- tho well -- oiled for the best results. Paper lint mixed with ink causes more trouble for duplicating operators than all other things combined.
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