Set the adjustment which indicates the number of copies turned out, so that it is not necessary to count them while printing. (Full directions are printed on this adjustment.) Place the paper on the feed board, far enough down for the sheets to come in contact with the rollers which feed them in, and turn the handle. If the proportion of space at top is greater or less than desired, set the attachment for regulating the space. Full directions are printed on each attachment of most machines. See that the ink tank which is located inside the cylinder is kept full of the best ink. Ink the pad by pushing the brush across the inside of the perforated cylinder.
Multigraphs differ from mimeographs in that they print the copy from type instead of thru a stencil. The type is set in a cylinder that is covered by an inked ribbon. Manuscripts printed by a multigraph look more like typewriting than those printed by a mimeograph. When turning out less than a thousand copies, the mimeograph will be found more economical on account of the small amount of time required in preparing the stencil.
Questions for Part IX
1. By what means are dumbwaiters operated?
2. Can you see any relation between the construction of door stops and force pumps?
3. What is the power for rolling up a window shade?
4. What does lock-stitch look like? How does chain-stitch differ from lock-stitch?
5. In what way do lock-stitch machines differ from chain-stitch machines?
6. What are the advantages of each? What are the disadvantages?
7. What is the tension? How is it adjusted? How is the length of stitch adjusted?