The engineer's sketch-book of mechanical movements, devices, appliances, contrivances and details employed in the design and construction of machinery for every purpose

by Thomas Walter Barber

[1978]. Hinged hand-crank.

[1979]. Joy’s patent hydraulic eccentric for steam engine reversing gear. The centre block—keyed to the crank shaft—has two small rams working in cylinders in the sheave, and the position of the eccentric is controlled by a hand-lever and pump forcing oil into the cylinders through a channel in the crank shaft and rams.

[1980]. Double eccentric, with two diameters or throws to give alternately two different lengths of stroke to an eccentric rod.

Shifting eccentrics. See Valve gear, [Section 79].

Crank shaft governor gear. See [ditto, ditto].

[1981]. Three-throw bent crank.

[1982]. Diagonal crank pin to give a rotary reciprocating motion as well as an up and down motion to a piston or rod.

Adjustable hand crank. See [Nos. 2570], [2265], [2523].

Adjustable eccentrics. See [Nos. 188], [189], [190].

Eccentric crank motion. See [Nos. 174], [175].