11. A parking pawl prevents the transmission from rotating, and therefore the vehicle from moving. 12. It is highly inadvisable to use the parking pawl to stop a vehicle in motion. 13. It was his recommendation that pawls should not be used on worm driven capstan engines. 14. A large hand wheel is also attached with a pawl gear to prevent back-slipping. 15. A later design implemented a rolling cylindrical pawl called a " nut " to retain the string. 16. Another pawl , pivoting on the frame, holds the shaft at that height as it rotates. 17. Medieval sources give Gwynllyw a brother, called " Pawl ", who is chief of neighbouring Penychen. 18. The hydraulically operated brake and pawl allows the anchor to be dropped from the ship's bridge. 19. These are engaged by 3 ratchet pawls at a time, with 9 in total in the freewheel. 20. Each set of 3 pawls is offset by 1 / 120 of a revolution from the previous set.
