| 摘要 |
A counter operated control device is provided for controlling and terminating the delivery of liquid petroleum products and the like. The device includes a presettable counter controlling a multiple stage trip mechanism having independent first and second stage trip units. The counter is further provided with an interlock between a preset control rod and a valve control ring, an emergency trip feature, the ability to provide an adjustable trip setting without disassembly of the counter, an improved count transfer array and improved performance and accuracy through optimization of the operating forces within the counter.
|
