Doors
Evolution of the Freight Elevator Door
The history of Peelle and the vertical biparting freight-elevator door are inextricably linked. Although it was incorporated in New York City (NYC) in 1905, The Peelle Co. traces its roots...
Door Reversal Devices: 1930-1960
Fred Anzley Annett (1879-1959), author of Electric Elevators: Their Design, Construction, Operation and Maintenance, provides a critical framework for this introductory history of elevator-door reversal devices. The first edition of...
Fire-Resistant Elevator Doors in Europe
Fire-Resistant Elevator Doors in Europe EN 81-58, the official European standard since 2004, has a long history. It defines the procedures for door certification, as well as their fire-resistance classification....
Elevator Door Operators: Then and Now
Attendants of yesteryear have given way to high-tech, automated solutions. People of a certain age may remember when automobiles were started not electronically but manually, by turning a hand crank,...
MDS1 Automatic Modular Lift Door for Residential Applications
Overview of Wittur’s recently introduced Modular Door System 1, an automatic door for new lift installations in residential buildings submitted by The Wittur Group The Wittur Group recently introduced its...
Obstruction Detectors – A Historical Review
A review of door sensors from the 1950s to the present A major issue with automatically powered elevator doors is the risk of passenger injury from door impacts. Elevator companies...
Elevator Door Protection from TL Jones
This article looks at the history, growth and future of TL Jones’ Microscan technology. Having a long history in the elevator industry has helped TL Jones become a recognizable worldwide...
SEES Light Screen and Resistor
An overview of SEES’ new universal light screen/door protector Southern Elevator & Electric Supply (SEES) now offers a universal light screen/door protector, which works for almost all applications. The design...
Keep Your Elevators Running with Door Operation Upgrades
This article discusses the performance benefits of upgrading elevator door equipment. The average elevator door opens and closes more than 200,000 times a year. No wonder the majority – more...
Sematic Elevator Door Equipment: Energy Conservation in the Elevator Industry
An in-depth look at Sematic’s energy-efficient door-drive controllers Energy conservation is a current hot topic and one of the main challenges for the 21st century. Lowering and optimizing power consumption...
