 Simple three disc locking mechanism from a wooden box recovered from the Vasa, sunk in 1628 A lock is a mechanical fastening device which may be used on a door, vehicle, or container, restricting access to the area or property enclosed. Commonly, it can be released by using a key or combination. Image File history File links Metadata No higher resolution available. ...
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Image File history File links Size of this preview: 800 × 600 pixelsFull resolution (2592 × 1944 pixel, file size: 1. ...
Image File history File links Size of this preview: 800 × 600 pixelsFull resolution (2592 × 1944 pixel, file size: 1. ...
Regalskeppet Vasa (also Wasa) is a Swedish 64-gun ship of the line built for King Gustavus Adolphus of Sweden of the House of Vasa, between 1626 and 1628. ...
1628 was a leap year starting on Saturday of the Gregorian calendar (or a leap year starting on Tuesday of the 10-day slower Julian calendar). ...
Look up Door in Wiktionary, the free dictionary. ...
The Trikke is a Human Powered Vehicle (HPV) This article is about the means of transport. ...
This article or section does not cite any references or sources. ...
A single key A key is a device which is used to open a lock. ...
In combinatorial mathematics, a combination is an un-ordered collection of unique elements. ...
Early history of locks Securing one's possessions has long been a concern of people throughout the world. Beyond hiding the objects or constantly guarding them the most frequently used option is to secure them with a device. Early solutions included knots to either detect, like the Thief knot, or hamper, like the Gordian knot. This article needs additional references or sources for verification. ...
Some knots: 1. ...
Thief knot Thief knot step-by-step Canonical Name: thief knot. ...
Alexander cuts the Gordian Knot, by Jean-Simon Berthélemy (1743–1811) The Gordian Knot is a legend associated with Alexander the Great. ...
Wooden locks and keys were in use as early as 4,000 years ago in Egypt [1]. The first known lock with a key was a pin lock where a cylinder of wood with a hole drilled through its axis was the key. The length of the cylinder was the critical factor. It was strung on a rope hanging out of a hole in a door. Then the key was inserted into the hole and the rope pulled to push the cylinder to push the bolt the correct distance. To lock the door just pull on the rope to extract the key cylinder and simultaneously pulling the bolt closed. This type of lock is still in use in certain parts of the world. A danger of this lock was a vandal could push the rope into the hole; an ancient equivalent of putting glue into a lock.
Early improvements in pin locks included increasing the number of pins to increase security, and changing the orientation of the pins to allow the key to provide the unlocking force instead of a rope. Thus establishing the principles of the modern Pin tumbler lock. The pin tumbler lock is a lock mechanism that uses pins of varying lengths to prevent the lock from opening without the correct key. ...
Next was developed a warded lock that is still used in modern times when the security required is not high and cost is a significant factor. It is the first lock design to have a key recognizable to a modern western person. Lock puzzles were used to obscure the locking mechanism or even provide a nonfunctioning lock for the thief to waste time on. A warded lock is a type of lock that uses a set of obstructions, or wards, to prevent the lock from opening unless the correct key is inserted. ...
A lock puzzles is a type of mechanical puzzle. ...
Famous locksmiths Categories: Stub | Locks ...
1778 was a common year starting on Thursday (see link for calendar). ...
Joseph Bramah (1748 - December 9, 1814), born Stainborough,Yorkshire, England. ...
1784 was a leap year starting on Thursday (see link for calendar). ...
Diagram of a Chubb detector lock A Chubb detector lock is a type of lever tumbler lock that when picked or opened with the wrong key will stop working until either a special regulator key or the original key is used (depending on the lock). ...
A small Chubb Detector lock from a gun case (Circa 1910) A Chubb detector lock is a type of lever tumbler lock that when picked or opened with the wrong key will stop working until either a special regulator key or the original key is used (depending on the lock). ...
1818 (MDCCCXVIII) is a common year starting on Thursday of the Gregorian calendar or a common year starting on Saturday of the 12-day slower Julian calendar. ...
A letter combination lock. ...
1857 was a common year starting on Thursday (see link for calendar). ...
The United States Department of the Treasury is a Cabinet department, a treasury, of the United States government established by an Act of U.S. Congress in 1789 to manage the revenue of the United States government. ...
A time lock is a locking mechanism commonly found in bank vaults and other high-security containers. ...
Samuel Segal (2 April 1902 - 4 June 1985) was a British doctor and politician who became Deputy Speaker of the House of Lords. ...
1916 (MCMXVI) was a leap year starting on Saturday (link will display the full calendar). ...
Year 1921 (MCMXXI) was a common year starting on Saturday (link will display the full calendar). ...
Padlock A modern padlock. ...
1924 (MCMXXIV) was a leap year starting on Tuesday (link will display the full calendar). ...
Linus Yale, Sr. ...
The pin tumbler lock is a lock mechanism that uses pins of varying lengths to prevent the lock from opening without the correct key. ...
Year 1848 (MDCCCXLVIII) was a leap year starting on Saturday (link will display the full calendar) of the Gregorian Calendar (or a leap year starting on Monday of the 12-day slower Julian calendar). ...
Linus Yale, Jr. ...
1861 (MDCCCLXI) was a common year starting on Tuesday (link with display the full calendar) of the Gregorian calendar (or a common year starting on Thursday of the Julian calendar) // January 1 - Benito Juárez captures Mexico City January 2 - Friedrich Wilhelm IV of Prussia dies and is succeeded by...
A letter combination lock. ...
Types of locks
 A type of padlock side view.
 Door with two locks, one in the doorknob and a separate deadbolt. Image File history File links Padlock. ...
Image File history File links Padlock. ...
Image File history File links Metadata Size of this preview: 800 × 533 pixelsFull resolution (3072 × 2048 pixel, file size: 3. ...
Image File history File links Metadata Size of this preview: 800 × 533 pixelsFull resolution (3072 × 2048 pixel, file size: 3. ...
The front wheel is locked with a U-lock but the rest of the bicycle has been stolen, as locking the front wheel is not a sufficient security measure. ...
This article or section does not cite its references or sources. ...
A letter combination lock. ...
A cylinder lock is a lock in which a cylinder must rotate in order to open the lock. ...
For the band see Deadbolt (band). ...
A disc tumbler lock or wafer lock is a type of lock that utilizes a set of flat discs to prevent the lock from opening unless the correct key is inserted. ...
An electronic lock is a locking device which uses some form of electronics to authenticate those accessing it, sometimes using two-factor authentication. ...
A magnetic lock is a simple locking device that consists of an electromagnet and armature plate. ...
An electric strike is an access control device used for doors. ...
A lever tumbler lock is a type of lock that uses a set of levers to prevent the bolt from moving in the lock. ...
A small Chubb Detector lock from a gun case (Circa 1910) A Chubb detector lock is a type of lever tumbler lock that when picked or opened with the wrong key will stop working until either a special regulator key or the original key is used (depending on the lock). ...
Padlock A modern padlock. ...
The pin tumbler lock is a lock mechanism that uses pins of varying lengths to prevent the lock from opening without the correct key. ...
This article or section does not cite its references or sources. ...
A disc tumbler lock or wafer lock is a type of lock that utilizes a set of flat discs to prevent the lock from opening unless the correct key is inserted. ...
A warded lock is a type of lock that uses a set of obstructions, or wards, to prevent the lock from opening unless the correct key is inserted. ...
5 Lever Lock is a type of lock. ...
In the 1970s, the lodging industry had an increasing problem with hotel crime. ...
See also Lock picking is the art of unlocking a lock without its intended key. ...
Locksmithing began as the science and art of making and defeating locks. ...
Physical security describes measures that prevent or deter attackers from accessing a facility, resource, or information stored on physical media. ...
External links
Further reading - Phillips, Bill. (2005). The Complete Book of Locks and Locksmithing. McGraw-Hill. ISBN 0071448292.
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