Abstract: A distance measuring meter includes counting wheels which are indexed by transfer pinions mounted on an axle parallel to the axis of the counting wheels. In order to prevent fraud by rotating the counting wheels back so as to decrease the distance displayed, one end of the axle is detachably secured. When an attempt is made to rotate the counting wheels back, the axle detaches at one end, thereby indicating that the meter has been tampered with.

Abstract: A hub meter for recording distance covered includes a housing and counter both of which rotate, along with a hub of a wheeled vehicle. A shaft is held generally stationary, with respect to the hub by an annular pendulum, fixed to the shaft and containing a plurality of lead balls.

Abstract: A distance measuring device for attachment to the hub of a vehicle wheel includes a pendulum, which remains generally stationary, as the hub rotates. A counting mechanism rotates with the hub, and is coupled through a worm wheel and lost-motion mechanism to the pendulum. The lost-motion mechanism reciprocates a feeding arm against the bias of a spring, which shifts periodically back and forth over center, as the lost-motion mechanism periodically transmits motion. A feed spring, mounted on the feeding arm, acts as a pawl to intermittently advance a ratchet wheel, coaxially disposed on the counting mechanism, to thereby index the counting mechanism as the vehicle wheel turns. If the counting mechanism, by any means, becomes jammed then the feed spring will deform, preventing further operation of the counting mechanism.

Abstract: A utility or service meter including print-out means stored in a tamper-proof zone of a housing and presentable to a record card insertable in the housing to print the accumulated total of the units of the service consumed.