deadman's handle

deadman's handle

[¦ded‚manz ′han·dəl]
(mechanical engineering)
A handle on a machine designed so that the operator must continuously press on it in order to keep the machine running.
References in periodicals archive ?
As the test driver explained that the deadman's handle stops the train if the driver has a heart attack, the Prince quipped: "It runs in the family.
The unit conforms to latest EEC pressure vessel directives and includes as standard a 50 litre pressure pot, tungsten carbide blast nozzle, manual air on/off valve, heavy duty wheels and carry frame also an emergency shut down by remote control with deadman's handle for operator safety.
DeadMan's Handle is designed to prevent such information from falling into the wrong hands - like a super-password with teeth.