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Rekey
Rekeying a lock is replacing the old lock pins with new lock pins. History Rekeying was first invented in 1836 by Solomon Andrews, a New Jersey locksmith. His lock had adjustable tumblers and keys, allowing the owner to rekey it at any time. Later in the 1850s, inventors Andrews and Newell patented removable tumblers which could be taken apart and scrambled. The keys had bits that were interchangeable, matching varying tumbler configurations. This arrangement later became the basis for combination locks. Why is rekeying needed Locks are usually re keyed to build master-key systems, make a set of locks share a common key, or to eliminate compromised keys. Sometimes worn pins are replaced with new pins if the old pins become too short to reach the shear-line. The shear-line is the thin line shared by the lock plug and its cylindrical housing. If a pin sits flush with the circumference of the plug it will allow lock rotation. Lock cylinders use different length pins in differe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Solomon Andrews (inventor)
Solomon Andrews (February 15, 1806 – October 17, 1872) was a doctor, aviator and dirigible airship inventor. Andrews invented an airship called ''Aereon'' which received some notice in the 1860s. He claimed to sail it as one would a sailboat.pg. 20, Toland Mention is made of the movement of pilot and passenger fore and aft in the basket to control attitude. He was a medical doctor and three times Mayor of Perth Amboy, New Jersey. He served as the health officer of Perth Amboy, New Jersey and supervised the construction of the city's first sewer system. He served as the Collector of the Port of New Jersey in Perth Amboy from 1844 to 1845. Biography Solomon was born on February 15, 1806, in Herkimer, New York to Josiah Bishop Andrews and Mary Bissell. He received his medical degree from Rutgers Medical School in 1827. Later, Andrews would go on to marry Harriet Johnson. In 1849, Solomon won election and served the Mayor of Perth Amboy, New Jersey for three different, inconsecu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lock (security Device)
A lock is a mechanical or electronic fastening device that is released by a physical object (such as a key, keycard, fingerprint, RFID card, security token or coin), by supplying secret information (such as a number or letter permutation or password), by a combination thereof, or it may only be able to be opened from one side, such as a door chain. A key is a device that is used to operate a lock (to lock or unlock it). A typical key is a small piece of metal consisting of two parts: the ''bit'' or ''blade'', which slides into the keyway of the lock and distinguishes between different keys, and the ''bow'', which is left protruding so that torque can be applied by the user. In its simplest implementation, a key operates one lock or set of locks that are keyed alike, a lock/key system where each similarly keyed lock requires the same, unique key. The key serves as a security token for access to the locked area; locks are meant to only allow persons having the correct key to ope ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Jersey
New Jersey is a state in the Mid-Atlantic and Northeastern regions of the United States. It is bordered on the north and east by the state of New York; on the east, southeast, and south by the Atlantic Ocean; on the west by the Delaware River and Pennsylvania; and on the southwest by Delaware Bay and the state of Delaware. At , New Jersey is the fifth-smallest state in land area; but with close to 9.3 million residents, it ranks 11th in population and first in population density. The state capital is Trenton, and the most populous city is Newark. With the exception of Warren County, all of the state's 21 counties lie within the combined statistical areas of New York City or Philadelphia. New Jersey was first inhabited by Native Americans for at least 2,800 years, with the Lenape being the dominant group when Europeans arrived in the early 17th century. Dutch and Swedish colonists founded the first European settlements in the state. The British later seized control o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Combination Locks
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] |
Reader's Digest
''Reader's Digest'' is an American general-interest family magazine, published ten times a year. Formerly based in Chappaqua, New York, it is now headquartered in midtown Manhattan. The magazine was founded in 1922 by DeWitt Wallace and his wife Lila Bell Wallace. For many years, ''Reader's Digest'' was the best-selling consumer magazine in the United States; it lost the distinction in 2009 to '' Better Homes and Gardens''. According to Mediamark Research (2006), ''Reader's Digest'' reached more readers with household incomes of over $100,000 than ''Fortune'', ''The Wall Street Journal'', '' Business Week'', and '' Inc.'' combined. Global editions of ''Reader's Digest'' reach an additional 40 million people in more than 70 countries, via 49 editions in 21 languages. The periodical has a global circulation of 10.5 million, making it the largest paid-circulation magazine in the world. It is also published in Braille, digital, audio, and a large type called "Reader's Digest Larg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lock Plug
This is a glossary of locksmithing terms. Glossary References External links {{Locksmithing Locksmithing Locksmithing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inch
Measuring tape with inches The inch (symbol: in or ″) is a unit of length in the British imperial and the United States customary systems of measurement. It is equal to yard or of a foot. Derived from the Roman uncia ("twelfth"), the word ''inch'' is also sometimes used to translate similar units in other measurement systems, usually understood as deriving from the width of the human thumb. Standards for the exact length of an inch have varied in the past, but since the adoption of the international yard during the 1950s and 1960s the inch has been based on the metric system and defined as exactly 25.4 mm. Name The English word "inch" ( ang, ynce) was an early borrowing from Latin ' ("one-twelfth; Roman inch; Roman ounce"). The vowel change from Latin to Old English (which became Modern English ) is known as umlaut. The consonant change from the Latin (spelled ''c'') to English is palatalisation. Both were features of Old English phonology; see and fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glossary Of Locksmithing Terms
This is a glossary of locksmithing terms. Glossary References External links {{Locksmithing Wikipedia glossaries, Locksmithing Locksmithing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HowStuffWorks
HowStuffWorks is an American commercial infotainment website founded by professor and author Marshall Brain, to provide its target audience an insight into the way many things work. The site uses various media to explain complex concepts, terminology, and mechanisms—including photographs, diagrams, videos, animations, and articles. The website was acquired by Discovery Communications in 2007 but was sold to Blucora in 2014. The site has since expanded out into podcasting, focusing on factual topics. In December 2016, HowStuffWorks, LLC became a subsidiary of OpenMail, LLC, later renamed System1. In 2018, the podcast division of the company, which had been spun-off by System1 under the name Stuff Media, was acquired by iHeartMedia for $55 million. History In 1998, North Carolina State University instructor Marshall Brain started the site as a hobby. In 1999, Brain raised venture capital and formed HowStuffWorks, Inc. In March 2002, HowStuffWorks was sold to the Convex Grou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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