Aviation engines; design--construction--operation and repair; (1919)
Pagé, Victor Wilfred, 1885-1947 · New York, The Norman W. Henley publishing co. · leaf 386
gerbevel gear at one end of a countershaft. A small helicalspur pinion at the other end of this countershaft receivesits motion from a larger gear turned by the hand crank.This arrangement of gearing permits of high spindlespeed without the use of large gears, as would be neces- Drilling Machines… … Fig. 167.—Forms of Hand Operated Drilling Machines. driving it by the large ring gear. The slow speed is ob-tained by shifting the clutch so that the top bevel piniondrives the drill chuck. As this meshes with a gear butslightly larger in diameter, a slow speed of the drillchuck is possible. Breast…
Airplanes
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