Meter-controlled braking system for a fluid-delivering vehicle

摘要

A system is provided for preventing movement of a fluid-delivering vehicle during transfer of fluid such as fuel oil from said vehicle. The system utilizes a modified conventional recording meter assembly to alter the flow of electrical current in an electrical circuit which activates a solenoid valve to control pneumatic pressure transmitted to brake control assemblies utilizing a power spring in association with a pressure-displaceable diaphram.