Raymond wrote:This idea has been used for a hundred years. Landlords used to ask for this type of set up to lock out non-paying tenants before laws prevent locking a person out of their home.
Make a key end in such a way that another key with a ramp and a hook at the base of the key will fit into the lockout tip.
Insert the tip to block the keyway from normal use by the tenant'set. Use the remover to yake out the blocking tip.
There are several designs that all work about the same.
THIS METHOD OF CONSTRUCTION KEYING HAS BEEN USED FOR A GREAT MANY YEARS.
didnt mean to shout.