Easy to elevate head by geared crank handle.

容易通过提高齿轮曲柄处理头。

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Crank handle for safely and easily opening or closing hopper.

独特的料斗开合摇手机构设计，料斗打开、关闭更安全方便。

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The crank handle is rotated to lead a screw to rotate through an umbrella wheel.

转动摇把，通过伞轮使螺杆转动。

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The control for this valve is a rotating crank handle that has to be screwed what feels like a hundred turns to switch from one position to the other.

FORBES: What Do All The Controls On A Fire Engine Truck Do?

The crank-handle drives a dynamo through a clever transmission system, and the resulting electrical energy goes straight into a rechargeable battery.

ECONOMIST: MONITOR

Because some users turn the crank-handle faster and harder than others, a nifty three-stage gearbox and a dynamo based on powerful neodymium-iron-boron magnets is used to ensure that efficiency is largely independent of the torque applied.

ECONOMIST: MONITOR