11. The computing engine of an Arithmometer has a set of linked Leibniz wheels coupled to a crank handle . 12. Evidence for rotary grindstones operated by a crank handle goes back to the Carolingian " Utrecht Psalter ". 13. Still, I knew that Model T's were notorious for backfiring during start-ups, thus spinning the crank handle counterclockwise. 14. The computing engine of an arithmometer has a set of linked Leibniz wheels coupled to a crank handle . 15. A gateman operated the lattice gates using a crank handle and announced each station as the train approached. 16. The hatch is designed to open when astronauts insert a crank handle into the gear hub and rotate it. 17. During evaluation flight, landing gear extension system fails with gear only partly deployed when in-cockpit crank handle breaks off. 18. There are a number of different mechanisms used to operate the device, including crank handles , push buttons and pull-cords. 19. The snake comes out at one end of the tube, and there is a crank handle on the other. 20. To operate the step switches, the locomotive driver had to turn a vertical crank handle once for each step.
