| 摘要 |
In order to operate at an increased rate during peak demand hours, a parking meter has rotary cam means with lugs representing peak demand hours and controlling a cam follower to shift a transmission so that a pointer moves faster during peak demand hours than during normal demand hours from a set position representing a period of time to a position of rest representing the end of a parking period. In a second embodiment, the cam follower sets the pointer to represent during normal demand hours a longer parking period than during peak demand hours. In a third embodiment, different coins set the pointer to the same position so that a more valuable coin is required during peak demand hours for the same parking period. |
