This is just the beginning! Our collection holds over 300 years of history, including rare newspapers, obituaries, marriage records, birth records, and so much more—most of which you won’t find anywhere else!
Inside Underwriters Laboratories Testing Gauntlet
A tour of the Chicago Underwriters Laboratories shows the harsh testing of safety devices. Iron poles, red hot furnaces, and a 645,000 psi hydraulic crush tests reveal how doors, pillars, and locks are pushed to extremes to verify fire resistance, lock integrity, and overall safety. Maj. R. W. Schroeder heads aviation testing. W. H. Merrill founded the lab, funded by fire underwriters.
MENTIONED IN THIS ARTICLE
Chicago
Jnt
Underwriter’s Laboratories, Inc
Albee In Wonderland
The
W. H. Merrill
National Board of Fire
Maj
R. W. Schroeder
New York