Dead bolt
A dead bolt, deadbolt or dead lock is a locking mechanism distinct from a spring bolt lock because a deadbolt cannot be moved to the open position except by rotating the lock cylinder with the key. The more common spring bolt lock uses a spring to hold the bolt in place, allowing retraction by applying force to the bolt itself. A deadbolt can therefore make a door more resistant to entry without the correct key.
A deadbolt is often used to complement a spring-bolt lock on an entry door to a building.
Common types
A deadlock, if it is cylinder operated, may be either single cylinder or double cylinder. A single cylinder deadlock will accept a key on one side of the lock, but is operated by a twist knob on the other side. Double cylinder locks will accept a key on both sides and therefore do not require (and often do not have) any twist knob. This prevents unwanted unlocking of the door by forced access to the interior twist knob (via a nearby window, for example). Double cylinder locks are sometimes banned from areas because they can be difficult to open from the inside and violate fire safety regulations. Some lock manufacturers also have a "lockable" knob: a key is always needed on one side (usually external), and a twist knob can be used on the other (internal), unless a button has been pressed, in which case a key is also needed on the internal side.
Deadbolt (film)
Deadbolt is a 1992 made-for-television thriller film, by Douglas Jackson, and starring Justine Bateman, Adam Baldwin, and Michele Scarabelli.
Plot
When medical student Marty Hiller (Justine Bateman) places an ad for a roommate, her ad is answered by handsome, clean-cut Alec Danz (Adam Baldwin). At first Alec seems to be a wonderful roommate; supportive, considerate and a real friend. However, Alec's affection turns to obsession as he plots to manipulate and control all aspects of Marty's life, imprison her in her own apartment and make her his.
Stars
Deadbolt (disambiguation)
A dead bolt is a type of locking mechanism.
Deadbolt may also refer to:
Asphalt concrete
Asphalt concrete (commonly called asphalt,blacktop, or pavement in North America, and tarmac or bitumen macadam in Great Britain and Ireland) is a composite material commonly used to surface roads, parking lots, and airports. It consists of mineral aggregate bound together with asphalt, laid in layers, and compacted. The process was refined and enhanced by Belgian inventor and U.S. immigrant Edward de Smedt. It is increasingly being used as the core of embankment dams.
The terms "asphalt (or asphaltic) concrete", "bituminous asphalt concrete", and "bituminous mixture" are typically used only in engineering and construction documents, which define concrete as any composite material composed of mineral aggregate adhered with a binder. The abbreviation "AC" is sometimes used for "asphalt concrete" but can also denote "asphalt content" or "asphalt cement", referring to the liquid asphalt portion of the composite material.
Mixture formulations
Mixing of asphalt and aggregate is accomplished in one of several ways:
Blacktop (film)
Blacktop is an American thriller film starring Meat Loaf released in 2000. The film was directed by award-winning filmmaker T.J. Scott.
Plot
When David (Lochlyn Munro), a comedian, gets a three night gig at a trucker's bar, his girlfriend, Sylvia (Kristin Davis), leaves him and accepts a ride from a trucker, Jack (Meat Loaf).
Problems arise when we discover that Jack may be a deranged serial killer of young women. David is starting a chase with the trucker and his girlfriend which is not aware of the danger. Jack starts a game with David, in which Sylvia's life is at stake.
Travelling together with Sylvia in his truck named "Goliath", Jack is leaving some clues to David as he follows them, at the same time acting as a "good stranger" to Sylvia, telling her stories about his life, and as we later learn difficult childhood in which he encountered bad treatment of his father towards his mother, (as Jack then recalls he killed his father in defense of mother).
Following chase, David meets Jack and Sylvia in deserted place Jack opens fire from his rifle, Sylvia momentarily learns about his real plans, and tries to escape (unsuccessfully).
Blacktop (disambiguation)
Blacktop or Black Top may refer to:
Podcasts:
