Betterment briefs : a collection of published papers on organized industrial efficiency (1909)
Jacobs, Henry William, 1874- · New York : John Wiley · leaf 141
Centralization of Machine Tool Equipment. 131 frame planer shown. When this machine was speeded up and heavycuts taken with high-speed tools, the driving-gear stripped off a toothat one time or another. Teeth were in some cases inserted, as shownImprovement* *ft wmte on ^ms picture, and in other…
Railroads -- Equipment and supplies · Locomotives -- Maintenance and repair · Railroads -- Repair-shops
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