The Colorado Engineer Volume 3 (Paperback)

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1907 Excerpt: ... provided with a box along one end. This box receives the roll of blue print paper. The lid has a steel straightedge to guide the knife in cutting. Fig. 3 illustrates the design. Fig. 3. Cutting Table. The roll from which the paper is to be cut is placed in the box, as shown, and the lid closed. The paper is then drawn out to the desired length, corresponding to. that indicated by the scale at the front of the table and the cross-ruling. A sharp knife drawn along the steel straight-edge cuts off the paper"/; The handling of the blue print paper is greatly facilitated by the use of this simple contrivance. It can be quickly and accurately cut to the desired size, which makes it possible to use narrow margins beyond the tracing, and results in an economy in paper. The unused roll is never exposed to the light. As an additional precaution, a ruby light is used in the printing room. While working in machine shops devoted to the overhauling of locomotives, the writer has had occasion to notice certain inconsistencies in the shop practice, which result in considerable loss of time and energy. Such practices are, no doubt, perfectly familiar to those who have been connected with shops of this kind, but for those who have not, it will do no harm to briefly review them. In order to simplify the statements somewhat, a specific shop will be alluded to, and references will be made in the present tense. The shop in question is a large one and its equipment in most respects up-to-date, this statement presupposing that a maximum product with a minimum expenditure of energy is the end sought. The men are checked in and out by a block system, i.e., each man has a number assigned to him, and twice a day, when beginning work, he is required to take his block or brass che...