Hostname: page-component-78c5997874-94fs2 Total loading time: 0 Render date: 2024-11-19T04:55:01.219Z Has data issue: false hasContentIssue false
  • English
  • Français

Locks and master keys

Published online by Cambridge University Press:  01 August 2016

Anthony C. Robin
Anthony C. Robin*
Affiliation:
County High School for Girls, Colchester
Get access Rights & Permissions [Opens in a new window]

Extract

A simple lock contains a bolt and one or more levers which are lifted the correct amount by the appropriate key, thus allowing the bolt to be moved in and out. In addition there are often circular obstructions or “wards” to stop some keys being turned in the lock.

Type
Research Article
Information
The Mathematical Gazette , Volume 72 , Issue 459 , March 1988 , pp. 1 - 7
Copyright
Copyright © Mathematical Association 1988

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)