pad arm

pad arm 

An extension of a spectacle frame either integral with the bridge or as a separate attachment to which a pad is fitted.
References in periodicals archive ?
The pad arm features a built-in extension that can be used to speed the downstroke and eliminate pad extenders or spacer blocks when using low-profile printing pads.
A reciprocating pad arm moves downward to pick up the image from the cliche plate and then turns 90 [degrees] and extends horizontally to print on a vertical surface.
The metal pad arms on the bridge enable the frame to sit up properly on a flatter nose.