.~ With safety means operable upon input signal loss
DEFINITION
Classification: 91/360
(under subclass 358) Apparatus in which the system is of the type where upon loss or termination of the input signal the working member would normally move to one extreme of its range of travel, and means are provided which are effective upon loss or termination of said input signal to cause the working member to assume a position intermediate the ends of its range of travel or to prevent movement thereof to an extreme of its range.