crank is how to change linear motion to rotary motion.
crank is how to change linear motion to rotary motion.
how to change linear motion to rotary motion?
crank
early versions of the michel engine were cam engines. these do not use a crankshaft in the conventional sense, but instead have a shaped cam. the pistons or their connecting rods have cam followers that slide over the surface of this cam. although most cams use rotary motion to generate a linear motion, this 'crankshaft' use is also possible, where the linear motion of the pistons is used to drive the rotary motion of the cam and the engine's output shaft.
michel engine
section::::applications.









































screw threads have several applications:









































bullet::::- fastening:









































bullet::::- fasteners such as wood screws, machine screws, nuts, and bolts.









































bullet::::- connecting threaded pipes and hoses to each other and to caps and fixtures.









































bullet::::- gear reduction via worm drives









































bullet::::- moving objects linearly by converting rotary motion to linear motion, as in the leadscrew of a jack.









































bullet::::- measuring by correlating linear motion to rotary motion (and simultaneously amplifying it), as in a micrometer.









































bullet::::- both moving objects linearly and simultaneously measuring the movement, combining the two aforementioned functions, as in a leadscrew of a lathe.
screw thread