Forum Discussion
mlts22
Feb 27, 2015Explorer
In some prisons, there is one main entry and exit for the COs and staff, which is called the sally port (term comes from castles that had a narrow opening other than the main gate for small groups to leave and enter, during a siege.)
A sally port bypass means that the gates get opened by the CH751 key... which isn't too insecure because an I/M seen near the lock mechanism likely will earn a trip to the SHU posthaste. Most prisons use a Folger-Adams 5 lever mechanism (not that it is pickproof, but because a lock has seven moving parts that are easily maintained.) That, or mogul (larger than normal) lock cylinders that have small ball bearings in each pin, which helps a lot with wear and adds pick resistance. (The locks are used thousands of times a day, so have to be engineered for heavy wear.)
CH751 keys do the job decently. I've seen them used for toilet paper dispensers, locks on computer racks, and other applications that require a basic, inexpensive lock as a theft deterrent.
As for what I use for my RV, I tossed the CH751 locks due to key breakage, and bought some "automotive grade" locks which have a shutter to keep out dirt. They use a different key, but are not really that more secure. The same lock mechanism is used on the Ford gas plug locks, so it isn't too bad. I'm not too worried about security since a "master key"... i.e. a long screwdriver will open the compartment doors posthaste. However, if I had stronger doors, I'd go with an Abloy or a Mul-T-Lock MT5+ cylinder with an extreme weather shutter.
As for my generator, again, the compartments are flimsy at best, so I use a locking chain and padlock from Germany (ABUS), which is more expensive than a chunk of chain from a hardware store and a cheap laminated padlock... but it ensures my generator stays put.
If worried about keys, there are always Combi-Cams, one model can use either keys or a combination. These provide you with OK security, and it is one less key that you have to worry about losing.
A sally port bypass means that the gates get opened by the CH751 key... which isn't too insecure because an I/M seen near the lock mechanism likely will earn a trip to the SHU posthaste. Most prisons use a Folger-Adams 5 lever mechanism (not that it is pickproof, but because a lock has seven moving parts that are easily maintained.) That, or mogul (larger than normal) lock cylinders that have small ball bearings in each pin, which helps a lot with wear and adds pick resistance. (The locks are used thousands of times a day, so have to be engineered for heavy wear.)
CH751 keys do the job decently. I've seen them used for toilet paper dispensers, locks on computer racks, and other applications that require a basic, inexpensive lock as a theft deterrent.
As for what I use for my RV, I tossed the CH751 locks due to key breakage, and bought some "automotive grade" locks which have a shutter to keep out dirt. They use a different key, but are not really that more secure. The same lock mechanism is used on the Ford gas plug locks, so it isn't too bad. I'm not too worried about security since a "master key"... i.e. a long screwdriver will open the compartment doors posthaste. However, if I had stronger doors, I'd go with an Abloy or a Mul-T-Lock MT5+ cylinder with an extreme weather shutter.
As for my generator, again, the compartments are flimsy at best, so I use a locking chain and padlock from Germany (ABUS), which is more expensive than a chunk of chain from a hardware store and a cheap laminated padlock... but it ensures my generator stays put.
If worried about keys, there are always Combi-Cams, one model can use either keys or a combination. These provide you with OK security, and it is one less key that you have to worry about losing.
About RV Tips & Tricks
Looking for advice before your next adventure? Look no further.25,114 PostsLatest Activity: Feb 24, 2025