definition: latches & locksets - ✔️✔️device to operate a door, hold in position & lock it
latchset - ✔️✔️ONLY holds door in place; NO lock (i.e. restroom partitions)
lockset - ✔️✔️special mechanism that allows the door to be locked with a KEY or
THUMBTURN
mortise lockset - ✔️✔️installed in rectangular area cut out of door; more SECURE than
cylindrical and offers wider variety of locking options
cylindrical - ✔️✔️most common; simple to install in holes drilled into door, relatively
inexpensive, most common in residential (like doors in home bedroom)
pre-assembled - ✔️✔️rectangular box that fits within a notch cut in the edge of the door;
easier to install than mortise; door knob OR lever can be used
center hung pivot - ✔️✔️allow door to swing in either direction & is completely concealed
pivots CANNOT be used with a door stop (instead use a flexible strip of wool pile or
synthetic stripping can be rabbeted into the edge of the door) on the same side of the
door with both jambs because it makes it difficult to seal the door against sound or light
transmission on the hinge and strike sides
closers - ✔️✔️automatically return a door to its closed position after it is opened
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