handwheel

rotation

Turning on an axis

• turningAct of rotating
• spinRapid rotation around axis
• crankRotary operating handle

twist · grip · revolve · pivot · maneuver · torque · leverage · clockwise · counterclockwise · tightening

calibration

Adjusting for measurement accuracy

• micrometerMillionth of a meter
• dialGraduated circular indicator
• graduationCompleting academic requirements formally

increment · vernier · accuracy · tolerance · positioning · zeroing · alignment · measurement · gauge · scale

lathe

Rotating shaping machine

• millGrain-crushing facility
• grindingMolar action sometimes
• carriageWheeled passenger vehicle

feed · traverse · quill · tailstock · headstock · spindle · table · axis · leadscrew · apron

actuator

Device producing controlled motion

• gearboxEnclosed system of cogs
• hoistRaise with tackle
• winchDrum-and-cable lifting mechanism

crane · press · clamp · vise · jack · brake · clutch · tensioner · conveyor · pump

shutoff

Flow-stopping control

• stemPlant's central axis
• bonnetHat secured under chin
• packingPutting items in containers

seal · opening · closing · throttling · isolation · piping · plumbing · steam · hydraulic · pneumatic

• controlsbutton, switch, dial, knob, lever
• manual controlslever, button, knob, dial, switch
• plumbing partsfaucet, valve, washer, drain, gasket
• Sewing Machinesbobbin, needle, Bernina, foot pedal, Kenmore
• microtomymicrotome, cryostat, knife holder, glass knife, steel blade
• valvesball valve, butterfly valve, gate valve, check valve, stop valve