Search results
Results from the WOW.Com Content Network
A destination dispatch elevator, here using a Compass system from Otis. Destination dispatch is an optimization technique used for multi-elevator installations, in which groups of passengers heading to the same destinations use the same elevators, thereby reducing waiting and travel times. This contrasts with the traditional approach, in which ...
The device usually acts as the interface of a sensor (such as a light curtain), designed to signal a safety-related event, typically when the light curtain beam's being "broken". OSSD signals are the outputs from the protective device (light curtain or scanner) to a safety relay .
In 1955 many of the MIT team left to form Concord Controls, a commercial NC company with Giddings' backing, producing the Numericord controller. [15] Numericord was similar to the MIT design, but replaced the punch tape with a magnetic tape reader that General Electric was working on. The tape contained a number of signals of different phases ...
Weisberg, David, The Engineering Design Revolution (PDF), archived from the original (PDF) on 7 July 2010. Wildes, Karl L.; Lindgren, Nilo A. (1985), A Century of Electrical Engineering and Computer Science at MIT, MIT Press, ISBN 0-262-23119-0. Herrin, Golden E. "Industry Honors The Inventor Of NC", Modern Machine Shop, 12 January 1998. Siegel ...
%PDF-1.4 %âãÏÓ 89 0 obj > endobj xref 89 21 0000000016 00000 n 0000001169 00000 n 0000001250 00000 n 0000001443 00000 n 0000001585 00000 n ...
Overload sensor – prevents the elevator from moving until excess load has been removed. It may trigger a voice prompt or buzzer alarm. This may also trigger a "full car" indicator, indicating the car's inability to accept more passengers until some are unloaded. Electric fans or air conditioning units to enhance circulation and comfort.
Even North Carolina’s small electric cooperatives are at the whims of the company: their largest source of power, the Catawba Nuclear Station in South Carolina, is operated by Duke Energy.
An elevator fell from the sixth floor of a hotel under construction. Overload of people and construction materials was blamed for the accident. [42] Pailin Province, Cambodia: 4 0 1958-04-16 An elevator at a dam at the Snowy Mountains Scheme fell about 400 feet (122 m) when the cable broke, killing 4 Italian employees of a French construction ...