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A time lock (also timelock) is a part of a locking mechanism commonly found in bank vaults and other high-security containers. The time lock is a timer designed to prevent the opening of the safe or vault until it reaches the preset time, even if the correct lock combination(s) are employed.
Time locks are mounted on the inside of a safe's or vault's door. Usually there are three time locks on a door. The first one to reach 0 will allow access in to the vault; the other two are for backup purposes.
Time locks were originally created to prevent criminals from kidnapping and torturing the person(s) who knows the combination, and then using the extracted information to later burgle the safe or vault, or to stop entry by authorized staff at unauthorized times.
An early test of their effectiveness came on May 29, 1875 in Great Barrington, Massachusetts, when a gang of robbers took the family of banker Frederick N. Deland hostage, demanding that he open the vault of the Grand Mahawie Bank. They were thwarted by a time lock which had been installed only a few days earlier, and left without harming the captives.
Modern electronic time locks have some functions not available to mechanical time locks, like resettable timers and pre-set times to activate.
Locksmithing is the science and art of making and defeating locks. Locksmithing is a traditional trade and in many countries requires completion of an apprenticeship. The level of formal education legally required varies from country to country from none at all, to a simple training certificate awarded by an employer, to a full diploma from an engineering college, in addition to time spent working as an apprentice.
Self-bondage refers to the use of restraints on oneself for erotic pleasure. It is a form of erotic bondage which can be practiced alone.
Linus Yale Jr. was a mechanical engineer, manufacturer, and co-founder with millionaire Henry R. Towne of the Yale Lock Company, which became the premier manufacturer of locks in the United States. He was the country's leading expert on bank locks and its most important maker. By the early 20th century, about three-quarter of all banks in America used his bank locks. He is best remembered for his inventions of locks, especially the cylinder lock, and his basic lock design is still widely distributed today, and constitutes a majority of personal locks and safes.
The pin tumbler lock, also known as the Yale lock after the inventor of the modern version, is a lock mechanism that uses pins of varying lengths to prevent the lock from opening without the correct key.
A combination lock is a type of locking device in which a sequence of symbols, usually numbers, is used to open the lock. The sequence may be entered using a single rotating dial which interacts with several discs or cams, by using a set of several rotating discs with inscribed symbols which directly interact with the locking mechanism, or through an electronic or mechanical keypad. Types range from inexpensive three-digit luggage locks to high-security safes. Unlike ordinary padlocks, combination locks do not use keys.
A lock is a mechanical or electronic fastening device that is released by a physical object, by supplying secret information, by a combination thereof, or it may only be able to be opened from one side, such as a door chain.
A child safety lock is a special-purpose lock for cabinets, drawers, bottles, etc. that is designed to help prevent children from getting at any dangerous things or contents. Young children are naturally curious about their surroundings and will always explore, but as they may be unaware of dangerous substances or situations, the results can be fatal. Numerous cases of poisoning have resulted from eating brightly colored pills or spilling cleaning solvents.
A safe is a secure lockable box used for securing valuable objects against theft or fire. A safe is usually a hollow cuboid or cylinder, with one face being removable or hinged to form a door. The body and door may be cast from metal or formed out of plastic through blow molding. Bank teller safes typically are secured to the counter, have a slit opening for dropping valuables into the safe without opening it, and a time-delay combination lock to foil thieves. One significant distinction between types of safes is whether the safe is secured to a wall or structure or if it can be moved around. A less secure version is usually called a cash-box.
A bank vault is a secure space where money, valuables, records, and documents are stored. It is intended to protect their contents from theft, unauthorized use, fire, natural disasters, and other threats, much like a safe. Unlike safes, vaults are an integral part of the building within which they are built, using armored walls and a tightly fashioned door closed with a complex lock.
Safe-cracking is the process of opening a safe without either the combination or the key.
The two-man rule is a control mechanism designed to achieve a high level of security for especially critical material or operations. Under this rule, access and actions require the presence of two or more authorized people at all times.
The Lock Museum of America houses an extensive lock collection that includes 30 early era time locks, escutcheon plates from safes, a large number of British safe locks, door locks, padlocks, handcuffs and keys, and more. Located in Terryville, Connecticut, the museum is directly across from the original site of the Eagle Lock Company, founded in 1854.
A time-delay combination lock is most commonly a digital, electronic combination lock equipped with a delay timer that delays the unlocking of the lock by a user-definable delay period, usually less than one hour. Unlike the time lock, which unlocks at a preset time, time-delay locks operate each time the safe is unlocked, but the operator must wait for the set delay period to elapse before the lock can be opened. Time delay safes are most commonly used in businesses with high cash transactions. They are used in some banks including Nationwide, HSBC, Barclays, and Halifax.
A gun safe is a safe designed for storing one or more firearms and/or ammunitions. Gun safes are primarily used to prevent access by unauthorized or unqualified persons, for burglary protection and, in more capable safes, to protect the contents from damage by flood, fire or other natural disasters.
Yale is one of the world's oldest lock manufacturers, owned by its parent company, Assa Abloy. Over its extensive history, Yale has received patents for dozens of its products, and the company has distributed its products to more than 120 countries, including Australia, Greece, India, Kuwait, and others. Yale's headquarters are located in Stockholm, Sweden.
Frederick Nelson Deland was an American soldier who fought in the American Civil War. Deland received the country's highest award for bravery during combat, the Medal of Honor, for his action during the Siege of Port Hudson in Louisiana on May 27, 1863. He was honored with the award on June 22, 1896.
This is a glossary of locksmithing terms.
The Hall's Safe & Lock Company was an American manufacturer of locks, safes, and bank vaults throughout the second half of the 19th century.
Milton A. Dalton of Cincinnati was an American time lock inventor and one of the founders of the Consolidated Time Lock Co. In 1873 he was commissioned by Joseph L. Hall of the Hall's Safe & Lock Co. to interview safe makers and obtain sworn statements from employees to create the ultimate resource and history of the construction of safes and vaults entitled: History of Fire & Burglar Proof Safes, Bank Locks, and vaults in American and Europe – Useful Information for Bankers, Business Men and Safe Manufacturers. A limited run of 66 copies was printed in 1874, of which, only two are known to remain today. It has been described as "one of the boldest and broadest acts of corporate espionage ever."
Frederick S. Holmes was an American safe and vault engineer, and inventor who designed the largest vaults in the world. During his career, Holmes designed hundreds of vaults throughout the United States, Canada and Japan from 1895 to 1941. The majority of Holmes designed vaults are located in New York's Financial District; many are publicly accessible and in buildings on the National Register of Historic Places. His name is engraved on the builder's plaques, typically located on the encased jamb controls of these vaults.