Abstract: A personal learning system comprising a base structure with a base member for mounting a pair of training manuals and audio/visual apparatus having prerecorded instructional information for instructing a student in use of training manual course material. The base member has a back portion expandable outward from the base member to support the base member in an easel configuration with the training manuals in an open position for enabling the student to study the training manual course material in accordance with the prerecorded instructional information. A top structure normally encloses the base structure to protect the training manuals and audio/visual apparatus and is opened and positioned against the base member back portion to aid in supporting the base structure in the easel configuration.

Abstract: A High Security Door Locking Device comprises a locking cylinder including a latch control cam rotatably operable by a properly formed key received within the cylinder. An electrical solenoid is inserted into the rear of the cylinder with a retractable core which interferes with the operation of the latch control cam when the solenoid is unoperated. A solenoid controller is connected to operate the solenoid in response to entry of a defined code into the solenoid controller to thereby permit operation of the latch control cam. The solenoid controller operates the solenoid only for a selected period of time in response to the entry of a defined code such that a valid code must once again be entered into the controller if the cylinder is not operated during the enabled time period.