Mechanical Locks for Educational Facilities

by Laurence Simon
Created: June 1, 2007

The Classroom Function enables the instructors and staff to lock and unlock their classrooms to best safeguard the students and their property. Students cannot lock the classrooms but can always exit.

Institutional (school) locksmiths know the types and functions of locks that are installed. Other locksmiths not specializing in education facilities may not be aware of these special function locks. Even in the era of bit keyed locks, specific locks were made for schools and institutions. This...

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F88 CLASSROOM SECURITY (Figure 4): Operated by lever or knob from either side except when outside is locked by a key inside. Latch bolt is retracted by key outside. Inside lever or knob always free to exit.

F110 CLASSROOM INTRUDER (Figure 4): Operated by lever or knob from either side except when outside is locked by a key inside. Key outside locks or unlocks outside lever or knob. Inside lever or knob always free to exit.

Note: The F88 function is not new. It has been around for years, but only applied to doors that required the control of the outside cylinder by an inside cylinder in lieu of a turn or pushbutton. It is an excellent function for stores, offices, public utilities, etc., to allow access at specific times while ensuring the exiting from the area all the time.

FULL MORTISE SECURITY INTRUDER

ANSI F32 INTRUDER LATCH BOLT LOCK (Figure 3): Key inside or outside locks or unlocks lever/knob. Key inside or outside also retracts latch bolt. Inside lever/knob always free to exit.

ANSI F33 INTRUDER DEAD BOLT LOCK (Figure 5): Key inside or outside locks dead bolt. Dead bolt is retracted by key from inside or outside. Inside lever/knob retracts both latch bolt and dead bolt - always free to exit.

ANSI F34 INTRUDER DEAD BOLT LOCK (Figure 5): Key inside or outside locks dead bolt. Dead bolt is retracted by key from inside or outside. Auxiliary dead latch or latch bolt deadlocked when dead bolt is projected. Inside lever/knob retracts both latch bolt and dead bolt - always free to exit.

ANSI F42 CLASSROOM LOCK (Figure 3): Key from either side except when outside lever/knob is locked from outside by key. When outside lever/knob is locked, latch bolt is retracted by key outside. Inside lever/knob always free to exit.

There are a number of slightly modified versions of the Security Intruder functions that may or may not carry an ANSI rating, which may be found among the major manufacturers in the United States and Canada .

AUXILIARY CLASSROOM LOCKING DEVICES

Additional dead bolt type security is listed among the locking devices for classrooms. They include full mortise dead bolts, mortise and tubular dead bolts. Some have ANSI designations; some do not.

E2171 Tubular Bored Classroom Deadlock (Figure 6): Locked and unlocked by outside cylinder. Inside thumb turn unlocks only.

E06091 Mortise Classroom Deadlock (Figure 8): Locked and unlocked by outside cylinder. Inside thumb turn unlocks only.

E06091(DC) (Modified) Mortise Classroom Deadlock (Figure 9): Locked and unlocked inside and outside by key. Inside thumb turn unlocks only.

F29 Full Mortise Classroom Deadlock (Figure 7): Locked and unlocked by outside cylinder. Inside thumb turn unlocks only.

F29 (DC) (Modified) Full Mortise Classroom Deadlock (Figure 10): Locked and unlocked inside and outside by key. Inside thumb turn unlocks only.

DORMITORIES

Dormitories are as much a part of educational facilities as the classrooms. Our industry has always had specific functions that apply to the housing of students. Many of these are also the same as apartment buildings and several are unique, exactly designated for dormitory buildings. In most cases they are Grade 1 and are recognized with an ANSI number. The mortise lock is dominant in this field.

F11 Dormitory Lock (Figure 11): The latch bolt is operated either side by lever/knob except when outside is made inoperative by a mechanical stop in the lock. Dead bolt projected by a key from either side. Dead bolt is retracted by a key from the outside or the lever/knob inside.

F13 Dormitory Lock (Figure 12): The latch bolt is operated either side by lever/knob. Dead bolt projected by a key from outside and a thumb turn inside. Dead bolt is retracted from the outside with the lever/knob inside.

Cylindrical locks do not offer dormitory functions because they do not have a dead bolt. However, I have seen and used the reversing of a hotel/motel lock principal with or without the indicator features to simulate a dormitory function. In hotel/motel functions, the outside knob is rigid, therefore always locked.