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Combination Lock
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. History The earliest known combination lock was excavated in a Roman period tomb on the Kerameikos, Athens. Attached to a small box, it featured several dials instead of keyholes. In 1206, the Muslim engineer Al-Jazari documented a combination lock in his book ''al-Ilm Wal-Amal al-Nafi Fi Sina'at al-Hiyal'' (''The Book of Knowledge of Ingenious Mechanical Devices'').Paul VallelyHow Islamic Inventors Changed the World ''The Independent'', 11 March 2006. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electronic Lock
An electronic lock (or electric lock) is a locking device which operates by means of electric current. Electric locks are sometimes stand-alone with an electronic control assembly mounted directly to the lock. Electric locks may be connected to an access control system, the advantages of which include: key control, where keys can be added and removed without re-keying the lock cylinder; fine access control, where time and place are factors; and transaction logging, where activity is recorded. Electronic locks can also be remotely monitored and controlled, both to lock and to unlock. Operation Electric locks use magnets, solenoids, or motors to actuate the lock by either supplying or removing power. Operating the lock can be as simple as using a switch, for example an apartment intercom door release, or as complex as a biometric based access control system. There are two basic types of locks: "preventing mechanism" or operation mechanism. Types Electromagnetic lock The mos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Conair Corporation
Conair Corporation is an American company based in Stamford, Connecticut which sells small appliances, personal care products, and health and beauty products for both professionals and consumers. It was founded in 1959 and has since expanded to include several divisions. History Founded in 1959 in a garage in Queens, New York, Conair started out by selling hair rollers and then hair dryers. It continued to expand, and became a public company in 1972, but then went private again after a leveraged buyout in 1985. It was owned by the co-founder and chairman Leandro Rizzuto until his death in 2017. Conair is one of the largest producers of hair care appliances, ranging from hair dryers and styling irons to its innovative hair curlers, Curl Secret and Miracurl Stylers. In 1995, BaByliss was acquired by the Conair Corporation. The BaByliss brand was created by the hairstylists René Lelièvre and Roger Lemoine, working in Paris in the early 1960's. Lelièvre innovated on the early ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wordlock
Wordlock is a brand of combination locks, made by Wordlock, Inc., that differs from traditional combination locks in that it has letters on its dials instead of numbers. This allows the combination to be a four-letter or five-letter word or name, similar to a password, and therefore potentially easier to remember than a series of digits. Wordlocks come in luggage locks, bike locks, padlocks, cable locks and commercial locks. History The Chinese created the first word combination lock in the 13th Century. The idea never caught on in the West, however, until Todd Basche, former Vice President of Software Applications at Apple Inc., invented the modern word lock in 2004. He and Rahn Basche founded WordLock, Inc. in 2007 in Santa Clara, California, USA. Todd's patented WordLock algorithm maximizes the number of four-letter and five-letter words that can be spelled on the Wordlock dials. WordLock won the Staples Inc. Invention Quest in 2004 and "Top 100 New Inventions" distinc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sargent And Greenleaf
Sargent and Greenleaf, more commonly known among Safe and Vault technician circles as S&G, is a U.S. company that manufactures combination locks, key-operated safe and safe deposit box locks, high security military padlocks, and associated equipment. James Sargent founded the James Sargent Lock Company in 1857. In 1864, he moved to Rochester, New York and the company was renamed Sargent and Greenleaf. The company is currently headquartered in Nicholasville, Kentucky Nicholasville is a home rule city in and the county seat of Jessamine County, Kentucky, United States. The population was 31,490 during the 2020 U.S. Census, making Nicholasville the 10th-largest settlement in the state. Since the late 20th ce .... It is a subsidiary of Stanley Security Solutions. References External linksOfficial Website Manufacturing companies based in Kentucky Companies established in 1856 Lock manufacturers American brands {{US-manufacturing-company-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Master Lock
Master Lock is an American company that develops padlocks, combination locks, safes, and related security products. Now a subsidiary of Fortune Brands Home & Security, Master Lock Company LLC was formed in 1921 by locksmith-inventor Harry E. Soref and is headquartered in Oak Creek, Wisconsin.Schmid, JohnMaster Lock reassessing China: Milwaukee-based company finds it can compete better from U.S. soil ''Milwaukee Journal Sentinel'', January 1, 2011. In 1970 the company was purchased by American Brands from Soref's heirs. American Brands was later renamed to Fortune Brands, which then split on October 3, 2011, to create the Fortune Brands Home & Security company and the beverages company Beam Inc. (which was then soon purchased by Suntory). History 20th century Before co-founding the company in 1921, Harry Soref had been a traveling locksmith in the U.S., Canada, and Mexico, [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ABUS
ABUS August Bremicker Söhne KG, commonly known as ABUS, is a German manufacturer of preventative security technology based in Wetter, North Rhine-Westphalia. Its name is an acronym of its original name, August Bremicker und Söhne ("August Bremicker and Sons"). History The company was founded in 1924. Initially, it was limited to the manufacture of padlocks. It is family-owned and managed according to Christian corporate principles. Over the years, its product range has expanded to include smoke alarms, video surveillance systems, bike and boat security products, alarm systems and locking systems. ABUS operates the final two product segments via its subsidiary companies: * Security-Center (alarm and video surveillance systems), founded in June 1999 and bought by ABUS in June 2001 * Schließanlagen GmbH Pfaffenhain (locking systems), bought in January 2003 * SECCOR high security GmbH (electronic locking systems and switching devices), bought in September 2010 In October ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bank Vault
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. Historically, strongrooms were built in the basements of banks where the ceilings were vaulted, hence the name. Modern bank vaults typically contain many safe deposit boxes, as well as places for teller cash drawers and other valuable assets of the bank or its customers. They are also common in other buildings where valuables are kept such as post offices, grand hotels, rare book libraries and certain government ministries. Vault technology developed in a type of arms race with bank robbers. As burglars came up with new ways to break into vaults, vault makers found new ways to foil them. Modern vau ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electronic Lock
An electronic lock (or electric lock) is a locking device which operates by means of electric current. Electric locks are sometimes stand-alone with an electronic control assembly mounted directly to the lock. Electric locks may be connected to an access control system, the advantages of which include: key control, where keys can be added and removed without re-keying the lock cylinder; fine access control, where time and place are factors; and transaction logging, where activity is recorded. Electronic locks can also be remotely monitored and controlled, both to lock and to unlock. Operation Electric locks use magnets, solenoids, or motors to actuate the lock by either supplying or removing power. Operating the lock can be as simple as using a switch, for example an apartment intercom door release, or as complex as a biometric based access control system. There are two basic types of locks: "preventing mechanism" or operation mechanism. Types Electromagnetic lock The mos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Keypad
A keypad is a block or pad of buttons set with an arrangement of digits, symbols, or alphabetical letters. Pads mostly containing numbers and used with computers are numeric keypads. Keypads are found on devices which require mainly numeric input such as calculators, television remotes, push-button telephones, vending machines, ATMs, point of sale terminals, combination locks, safes, and digital door locks. Many devices follow the E.161 standard for their arrangement. Uses and functions A computer keyboard usually has a small numeric keypad on the side, in addition to the other number keys on the top, but with a calculator-style arrangement of buttons that allow more efficient entry of numerical data. This number pad (commonly abbreviated to ''numpad'') is usually positioned on the right side of the keyboard because most people are right-handed. Many laptop computers have special function keys that turn part of the alphabetical keyboard into a numerical keypad as there ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Permutation
In mathematics, a permutation of a set is, loosely speaking, an arrangement of its members into a sequence or linear order, or if the set is already ordered, a rearrangement of its elements. The word "permutation" also refers to the act or process of changing the linear order of an ordered set. Permutations differ from combinations, which are selections of some members of a set regardless of order. For example, written as tuples, there are six permutations of the set , namely (1, 2, 3), (1, 3, 2), (2, 1, 3), (2, 3, 1), (3, 1, 2), and (3, 2, 1). These are all the possible orderings of this three-element set. Anagrams of words whose letters are different are also permutations: the letters are already ordered in the original word, and the anagram is a reordering of the letters. The study of permutations of finite sets is an important topic in the fields of combinatorics and group theory. Permutations are used in almost every branch of mathematics, and in many other fields of scie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
