The Civil engineer and architect's journal, scientific and railway gazette (1839)
London : [William Laxton] · leaf 359
ade to slide end- *^S^.*/° he shaft, the same being prevented moving round upon nally with tli^, j^Q fixed keys or feathers j, upon which the boss or the form ot p , loosgiy, j^ the periphery of this boss there are four nly of which is seen in the drawingi these grooves re- ceive four studs which… … therefore be evident from tlie above that by sliding the boss back-wards or forwards upon the shaft, that the angle of the floats may bevaried, and the speed of the vessel increased or diminished as may berequired. This sliding motion of the boss g, is effected as follows :m, is a bracket or…
Architecture · Civil engineering · Science
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