Cyclopedia of mechanical engineering; a general reference work. Editor-in-chief Howard Monroe Raymond. Assisted by a corps of mechanical engineers, technical experts, and designers of the highest professional standing (1908)
American School (Chicago, Ill.), Raymond, Howard Monroe · Chicago American Technical Society · leaf 139
wherean ordinary rule is used and the threads l)et\veen the ineli marksare counted. For thispurpose a pitch gauge,Fig. 155, is iised. Thegauges are short screwsections on thin sheets ofmetal. To ascertain thepitch of any thread, settlie gauges over it suc-cessively until one isfound that exactly… … 104 MACHINE SHOP WORK. travel of the carriage. When a right-lianded screw is to be cut,tlie carriage travels from right to left. For example, if a screwhaving a pitch of i inch, or with four threads to the inch, as it isusually expressed, is to be cvit, the spindle must make four revolu-tions while…
Mechanical engineering
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