Betterment briefs : a collection of published papers on organized industrial efficiency (1909)
Jacobs, Henry William, 1874- · New York : John Wiley · leaf 145
FlG. 81 A LARGE FRAME PLANER AND ITS OLD CAST-IRON DRIVING GEAR THAT WAS NOT STRONG ENOUGH TO WITHSTAND THE HEAVY CUTS TAKEN WITHHIGH-SPEED TOOLS. ON THE RIGHT IS THE MECHANIC WHO PUSHED THIS MACHINEUP TO THE LIMIT, AND THE LEFT THE PROGRESSIVE FOREMAN WHO HAS DONE MUCHIN AN ENERGETIC WAY TO… … FIG. 82—THE OLD AND NEW DRIVING GEARS FOR FRAME PLANER. THE ONEON THE LEFT IS THE ORIGINAL GEAR OF CAST-IRON. THE FAILURE OF THIS GEARUNDER THE HEAVY DUTY IMPOSED EY HIGH-SPEED TOOLS IS SHOWN IN THE LARGENUMBER OF BROKEN TEETH. THE NEW STEEL-RIMMED GEAR SUBSTITUTED FORTHE OLD ONE, IS SHOWN ON THE…
Railroads -- Equipment and supplies · Locomotives -- Maintenance and repair · Railroads -- Repair-shops
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