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High-Security Mechanical Locks: An Encyclopedic Reference PDF

614 Pages·2007·18.52 MB·English
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High-Security Mechanical Locks: An Encyclopedic Reference This page intentionally left blank High-Security Mechanical Locks: An Encyclopedic Reference Graham W. Pulford AMSTERDAM•BOSTON•HEIDELBERG•LONDON NEWYORK•OXFORD•PARIS•SANDIEGO SANFRANCISCO•SINGAPORE•SYDNEY•TOKYO Butterworth-HeinemannisanimprintofElsevier Elsevier Academic Press 30 Corporate Drive, Suite 400, Burlington, MA 01803, USA 525 B Street, Suite 1900, San Diego, California 92101-4495, USA 84 Theobald’s Road, London WC1X 8RR, UK This book is printed on acid-free paper. Copyright (cid:2)c 2007, Elsevier Inc. All rights reserved. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Permissions may be sought directly from Elsevier’s Science & Technology Rights Department in Oxford,UK:phone:(+44)1865843830,fax:(+44)1865853333,E-mail:[email protected]. You may also complete your request on-line via the Elsevier homepage (http://elsevier.com), by selecting “Customer Support” and then “Obtaining Permissions.” Library of Congress Cataloging-in-Publication Data Pulford Graham W. High-security mechanical locks : an encyclopedic reference/Graham W. Pulford. p. cm. Includes bibliographical references and index. ISBN-13: 978-0-7506-8437-8 (alk. paper) ISBN-10: 0-7506-8437-2 (alk. paper) 1. Locks and keys–Encyclopedias. TS520.P854 2007 683(cid:2).32–dc22 2007004202 British Library Cataloguing-in-Publication Data A catalogue record for this book is available from the British Library ISBN 13: 978-0-7506-8437-8 ISBN 10: 0-7506-8437-2 For all information on all Elsevier Academic Press publications visit our Web site at www.books.elsevier.com Printed in the United States of America 07 08 09 10 11 12 10 9 8 7 6 5 4 3 2 1 To Jill, Arthur, Lehene, HweeYing and Chlo¨e This page intentionally left blank Contents Acknowledgments xi Preface xiii 1 Introduction 1 1.1 Prologue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.2 Security Versus Obscurity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.3 Innovation in the Lock Industry . . . . . . . . . . . . . . . . . . . . . . . . . . 8 1.4 Administrative Matters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 2 Pin-Tumbler Locks 31 2.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 2.2 Inline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64 2.3 Inline with Passive Profile Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . 79 2.4 Inline Horizontal Keyway . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86 2.5 Twin Inline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91 2.6 Inline with Active Profile Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . 99 2.7 Cruciform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111 2.8 Multiple Inline. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115 2.9 Tubular. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138 viii CONTENTS 2.10 Concentric Pin. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153 2.11 Rotating Pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160 2.12 Pin Matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163 2.13 Key-Changeable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168 3 Wafer Locks 173 3.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173 3.2 Conventional . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186 3.3 Contoured . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190 3.4 Three-sided . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194 3.5 Inline Push Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196 3.6 Bell Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199 3.7 Axial . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205 3.8 Key-Changeable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217 4 Side-Bar Locks 223 4.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223 4.2 Disc Side-bar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 234 4.3 Lever Side-bar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 252 4.4 Driverless-Pin Side-bar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264 4.5 Wafer Side-bar. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 279 4.6 Dual-action Side-bar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 287 5 Lever Locks 313 5.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 313 5.2 Conventional . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 349 5.3 Double-Throw . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 375 CONTENTS ix 5.4 Axial . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 379 5.5 Radial. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 387 5.6 Cylindrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 394 5.7 Geared . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 409 5.8 Trap-Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 414 5.9 Twin. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 416 5.10 Variable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 420 5.11 Dual-Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 430 6 Magnetic Locks 435 6.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 435 6.2 Miwa Magnetic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 448 6.3 Anker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 450 6.4 MagLok . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 454 6.5 Miracle Magnetic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 457 6.6 EVVA MCS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 459 6.7 Schlage CorKey . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 463 7 Car Locks 469 7.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 469 7.2 Double-Sided . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 476 7.3 Holden Commodore . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 478 7.4 Ford Tibbe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 479 7.5 Ford Chubb. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 482 7.6 General Motors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 484 7.7 Mercedes Two-Track . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 487

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I'm not a locksmith by trade, but I have always had a fascination with locks and keys and know the basics of the craft. I happened upon this book and bought it impulsively. Upon receiving the book, I was at first disappointed at the small size (dimensions) and the thin-type pages. I almost decided t
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