How to convert uniform linear motion(mm/s) to uniform rotary motion(deg/s). I.e. table saw blade tilt mechanism. Something like reversed Scotch yoke mechnism.
However in a table saw tilt mechanism the rack is actually just a segment of a much) larger gear.
Howecer the scotch yoke is not uniform rotary to uniform linear, it is actually uniform rotary to sine linear. You can get rotary motion out of reciprocal motion using a crankshaft. You may need to add a flywheel to maintain the rotary momentum.