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History
The Sherrill-Roper Hot-Air Engine

The Sherrill-Roper Hot-Air Engine

By Dr. Lee Gray | May 1, 2022

In this History article, readers learn about the change from steam to a new way of generating heat.

Albert Betteley

Albert Betteley

By Dr. Lee Gray | April 1, 2022

Your author explores the history of a Boston mechanic who was one of the VT industry’s early pioneers.

Vast Forward - 4

California’s Elevator Safety Orders, 1915-1918

By Dr. Lee Gray | February 28, 2022

This History article explores a state industrial commission focused on developing safety codes.

Elisha Otis at Crystal Palace, Part 2

Elisha Otis at Crystal Palace, Part 2

By Dr. Lee Gray | February 1, 2022

Historical importance of the 1854 exhibition in New York

Elisha Otis’ “Improved Elevator”

Elisha Otis’ “Improved Elevator”

By Dr. Lee Gray | January 1, 2022

Examining the “facts” from the New York Crystal Palace Exhibition

Historical-Buildings-Modern-VT

Historical Buildings, Modern VT

By Elevator World | December 1, 2021

In this Project Spotlight, DOPPLER designs modern VT for historical buildings, upgrading the ride experience while respecting the local heritage.…

Revisiting-History

Revisiting History

By Elevator World | December 1, 2021

In this Readers’ Platform, your author reflects on a lift modernization undertaken 30 years ago. by Colin Craney In a…

The Montmorency Escalator in Le Havre

The Montmorency Escalator in Le Havre

By Dr. Lee Gray | December 1, 2021

In this History article, your author describes an early 20th century French transportation system.

Elevator Brakes 1895-1927

Elevator Brakes 1895-1927

By Dr. Lee Gray | November 1, 2021

In this History article, your author provides a brief presentation of early brake systems.

Elevators As Communications Systems

Elevators As Communications Systems

By Dr. Lee Gray | October 1, 2021

In this History article, your author examines a lesser-known ap-plication of VT technology.

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