High Security Locking Devices: A State-of-the-Art Report

摘要

An investigation was made of the literature and information related to high security, internal locking devices. The purpose of this work was to identify and document the present state-of-the-art of these devices and systems used on doors. This document supports an R & D effort to develop a locking system for sensitive ordnance structure doorways that will take the place of existing surface mounted padlocks and hasps. Locking systems were investigated both overall and their subsystem components, including bolt-works, bolt-work driving subsystems, locking mechanisms and the protective envelope. Usual categories of lock types are presented, and a new combined summary of locking device classifications is suggested to act as a standard basis for future research and development of standards. This classification divides locks by their operation, installation and component characteristics. A review of the literature includes an annotated bibliography, annotated lists of standards and specifications, national organizations and locksmith schools, a selected list of manufacturers and a glossary compiled from available glossaries. An appendix includes selected samples of manufacturers' catalogue information. As a result of this investigation, the author provides specific recommendations concerning the needs of more technical study and research together with suggested development and implementation of standard test methods.