Early Elevator Indicator Revisited

Sponsored

The February 2016 issue of ELEVATOR WORLD includes an article, “Paul Schuyler Van Bloem,” written by Dr. Lee Gray in response to a research request from Mark A. Goldstein of New Jersey. In addition to sounding bells, the indicator would light up on the arrival of the elevator. Goldstein installed some lights in the back of the indicator and witnessed a beautiful display of color, confirming Van Bloem’s statement in U.S. Patent No. 1,592,399 ( July 13, 1926):

“Up-and-down signals usually are differently colored, the up signal being usually white, although green frequently is used, and the down signal being usually red, although other colors are sometimes used.”

Related Tags

Since 1953, Elevator World, Inc. has been the premier publisher for the global vertical transportation industry. It employs specialists in Mobile, Alabama, and has technical and news correspondents around the world.

Sponsored

Sponsored
Sponsored
Elevator-World---Fallback-Image

The Human Touch

Touting Their USP

Touting Their USP

A Mutually Beneficial Alliance

A Mutually Beneficial Alliance

IEE-Expo-Tech-Forum-2011

IEE Expo Tech Forum 2011

OTIS-GEN2-Switch-Elevator

OTIS GEN2 Switch Elevator

Middle East Marvels

Middle East Marvels

Stone-Elevator

Stone Elevator

Elevator-World---Fallback-Image

Elevator Shunt Trip, Part 2

Sponsored
Sponsored