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Craning
Use as a lifting device, of a backhoe bucket, with a cable or chain wrapped around the bucket teeth.

Crank
Mechanism, which converts between rotary and reciprocating motion with use of a lever, which has one end, attached to the outside diameter of a wheel, which goes around with the wheel when it is turned. A crank connected to a piston within a cylinder is attached to the other end of the lever. The motion of the crank end of the lever is changed into a reciprocating or sliding motion as the lever moves along with the wheel.

Crank shaper
Metal shaper with a crank pin on the main driving gear to drive the to drive the reciprocating arm.

Crankcase
Crankshaft enclosure in a machine.

Crankpin
Pin, which attaches the connecting rod at the outer periphery of the crank.

Crankshaft
Used in both machinery and piston engines, this rotating shaft with connecting rods attached, for converting between rotary and reciprocating motion.

Crawl space
Shallow space below the floor of a building built above ground, generally surrounded with a foundation wall.

Crawl space plenum
Heating system that works by accumulating heated air in the crawl space and by using fans to distribute the heated air.

Crawling
Uneven texture of a paint surface, which can be caused by shrinkage while drying.

Crawlspace
The unoccupied, and usually unfinished and unconditioned space between the floor, foundation walls, and the slab or ground of a building.

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