Abstract: A latch assembly is operated by either pushing or pulling against the end of, displacing a given amount of longitudinal travel, a spindle which has a helically formed portion of a given length engaged by congruently formed cam aperture surfaces. The cam is rotatably positioned with respect to and in engagement with the spindle. A rollback is contacted by one of two lobe surfaces of the cam, one corresponding to a pull of the spindle, the other corresponding to a push upon the spindle from the opposed end, the cam rotating in alternate directions. The rollback may be of a single piece with the latch member which is slidably held by the frame of the latch assembly.