Improved Apparatus for Measuring and Recording the Speed of Power-driven Vehicles.
12,624. Kalb, G. F. W., and Olsson, S. May 25. Feeding and driving means.-In speed indicators wherein a record of the speed is made on a vehicle-actuated strip, the strip is drawn from a spool 16 by feed rolls 28, 29 on to a roll 17, which is connected by a spring 30 and a notched disk 31 to a ratchet-wheel 19. The feed-rolls and the wheel 19 are rotated by pawls 18, 27 carried by an arm 25 mounted on a shaft 26 which is rocked by a cam 14<a> on the driving- shaft 1<a> engaging a spring-pressed plunger connected to a crank 24 carried by the shaft 26.