Latchbolt operated by knob/lever from
either side except when outside lever
is made inoperative by push button
rocker. Deadbolt projected by key
from outside is locked by thumbturn.
Deadbolt thrown or retracted by
rotation of thumbturn. When locked,
key outside or knob/lever inside
retracts deadbolt and latchbolt
simultaneously. Outside knob/lever
remains locked until thumbturn is
r e s t o r e d . T h r o w i n g d e a d b o l t
a u t o m a t i c a l l y l o c k s o u t s i d e
knob/lever. Auxiliary latch deadlocks
latchbolt when door is closed. Inside
lever is always free for immediate
egress.