A short treatise on the designing and construction of gearing and mill-work. Accompanied by an explanation of the construction and use of the odontograph of Prof. Willis .. (1873)
[Scott, David] engineer. [from old catalog] · New York, D. Appleton and company · leaf 85
t degree, and deficient in stability, is easily twisted out of position in con-sequence of the obliqueaction of the weight upon it; and, moreover, the hook into which the brasses are fitted being usuallynarrow—another feature of economy always associated with it—the brasses soon become loose… … Fig. 2112 represents a gallows of a more substantial character, but still inelegant in appearance, and,m some respects, inconvenient. The weight being equally and directly borne by the two supportingpoints, it possesses all the advantages of strength; it may be provided with a cover and…
Gearing · Mills and mill-work · Odontograph
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