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A video door-phone (also known as a video door entry or video intercom) is a stand-alone intercom system used to manage calls made at the entrance to a building (residential complex, detached family home, workplace, etc.) with access controlled by audiovisual communication between the inside and outside. The main feature of video door entry is ...
The first modern direct-pull electromagnetic lock was designed by Sumner "Irving" Saphirstein in 1969 [6] [7] [8] for initial installation on doors at the Montreal Forum. [9] Fire concerns by local authorities in locking the doors at the Forum prompted management to find a locking solution that would be safe during a fire incident.
A quick demonstration of an electronic door 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.
A broad range door manufacturer, Premdor (now Masonite) once stated in one of its 1990s brochures entitled "Premdor Entry Systems" page 6 that "The results of tests were overwhelming, Steel edged doors outperform wood-edged doors by a ratio of 7 to 1. When you consider the practically two-thirds of all illegal entries were made through doors...
The El Dorado Apartments (also spelled Eldorado) is at 300 Central Park West in the Upper West Side neighborhood of Manhattan in New York City. [3] The building occupies the western sidewalk of Central Park West (formerly Eighth Avenue [ 4 ] ) between 90th Street to the south and 91st Street to the north. [ 3 ]
Revolving door is flanked on both sides by conventional doors with arrows pointing inward towards the preferred entry. H. Bockhacker of Berlin was granted German patent DE18349 [ 7 ] on December 22, 1881 for Tür ohne Luftzug or ' Door without draft of air ' , which used a rotating cylinder with a door which after entering, the user then turned ...
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In May 2016, SilverDoor acquired Citybase Apartments. [2] November 2016 saw the company open its first international office in Singapore. In December 2017 SilverDoor formed part of the parent company, Habicus Group, together with its sister brands Citybase Apartments, Central London Apartments and Orbital Partnerships. [3]