Life net

From Wikipedia, the free encyclopedia
Jump to: navigation, search

A life net, also known as a Browder Life Safety Net or jumping sheet,[1] is a type of rescue equipment formerly used by firefighters. When used in the proper conditions, it allowed people on upper floors of burning buildings an opportunity to jump to safety. Invented in 1887, the device was used with varying degrees of success during several notable fires in the early 20th century. Due to advances in firefighting technology, it became obsolete by the 1980s.

Inventor[edit]

The device was invented by Thomas F. Browder, born in Greene County, Ohio, in 1847. During the American Civil War, Browder enlisted in the Company C, 60th Ohio Infantry of the Union Army at the age of 17, and was wounded at the Battle of Spotsylvania Court House on May 9, 1864. He was shot through the hip, sent home to the following month, and later discharged from the service. He became a school teacher, and later moved to Greenfield, Ohio, where he invented and patented the life net in 1887. Browder later opened a laundry business. He obtained additional patents for improvements to the life net in 1900, and later also patents in Europe.[2]

Design[edit]

Browder's device was similar to a modern recreational trampoline,[3] which was developed later in 1936. Among its advantages were that the life net was always taut when open, never slackened, and had a setup time of only two to three seconds. It used hinges to fold for storage and an automatic locking mechanism when unfolded. Its opaque cover helped reduce panic and increase the confidence of people who had to jump into it. The device helped save many lives.[4] Some models had a red bullseye in the center.

Limitations[edit]

Firefighters believed that the practical height limit for successful use of life nets was about six stories, although in a 1930 Chicago fire, three people survived jumps from an eighth story into a life net. One suffered a skull fracture, and the other two had minor injuries.[3]

Examples of successful rescues[edit]

On August 19, 1902, the New York City Fire Department conducted its first real-life rescue with the Browder life net. During rescue operations at a tenement fire that killed five people, a baby was dropped from a fourth-floor fire escape into a life net, and survived uninjured.[5] On November 10, 1904, three people were saved when they jumped into a life net during a fire in New York City. Three other people died on the top floor of the building.[6] In Anchorage, Alaska, in 1957, a woman dropped her three-year old daughter into a life net, and the girl was uninjured; the mother suffered a broken back after jumping into the net.[7]

Examples of failures and problems[edit]

Life nets often failed to save people, and sometimes firefighters themselves were injured or killed by falling bodies. According to researcher and writer Cecil Adams, "Leapers sometimes struck something on the way down, landed on a fireman, or missed entirely."[3] In November 1910, a fire swept through a factory in Newark, New Jersey, killing 25 people. Among them were four girls who held onto each other when they jumped into a life net. They tore the net apart and were killed.[8] In the Triangle Shirtwaist Factory fire on March 25, 1911, girls jumped into life nets from the ninth floor with their arms intertwined and the impact ripped the canvas and tore the springs from the frame, resulting in their deaths.[9] In all, 146 garment workers were killed in that fire. During the Hotel Polen fire in Amsterdam on May 9, 1977, firefighters could not successfully deploy a life net in a narrow, congested alley. When a life net was deployed in a more open area, some hotel guests threw their luggage into the net, and were then injured when they jumped. Others were injured when they hit the rim of the net. In all, 33 people died in that fire.[10]

Phase out[edit]

In 1958, a fire department official in Eugene, Oregon expressed reservations, saying that the term "life net" was misleading, and that they should be used only as a last resort.[11] As late as 1961, though, the Chicago Fire Department still emphasized the life net in its training programs.[12] However, the modern aerial apparatus often known as a ladder truck has made the life net obsolete, as this ladder equipment makes it possible for firefighters to carry out rescues more safely, at greater heights and with smaller crews. Researcher Cecil Adams has concluded that the life net was no longer used after 1983, and writes that they are not mentioned in current training manuals for firefighters.[3] Many examples of life nets are on display in firefighting historical museums.

References[edit]

  1. ^ Swarbrick, Nancy (September 28, 2011). "Fires and fire services". Te Ara - the Encyclopedia of New Zealand. Retrieved October 13, 2012. 
  2. ^ Klise, J. W.; Hough, A. E. (1902). The County of Highland: A History of Highland County, Ohio, from the Earliest Days; With Special Chapters on the Bench and Bar, Medical Profession, Educational Development, Industry and Agriculture, and Biographical Sketches. Madison, Wisconsin: Northwestern Historical Association. pp. 252–253. 
  3. ^ a b c d Adams, Cecil (July 8, 2011). "Did firemen once use nets to rescue people from burning buildings?". The Straight Dope. Retrieved December 12, 2011. 
  4. ^ Insurance Engineering: Devoted to the Science of Diminishing Hazards to Property and Life. New York City: The Insurance Press. 1902. pp. 308–309. 
  5. ^ "Five Lives Lost in an East Side Fire: Thrilling Rescues Amid Scenes of IntenseE xcitement". New York Times (New York City). August 20, 1902. Retrieved December 25, 2011. 
  6. ^ "Three Burned to Death in Up-Town Night Fire; Flames in Apartment House "Mushroomed" on Top Floor - Three Jump into Life Net". New York Times (New York City). November 11, 1904. Retrieved December 24, 2011. 
  7. ^ "A Desperate Drop". Life magazine (New York City). January 28, 1957. p. 33. Retrieved December 24, 2011. 
  8. ^ "25 GIRLS PERISH IN FACTORY FIRE: Leap to Death From Windows or Die in the Flames. PENNED ON IRON ESCAPES Wild Rush for Safety as Blaze Sweeps Old Building. 50 ARE SENT TO HOSPITALS Terror-Stricken Employes of Newark, N. J., Companies Throw Themselves to Sidewalk or Stand in Fear at Windows Until Flames End Their Lives. Others, Caught on Fire Escapes, Are Burned to Death -- Six Persons Still Reported Missing -- Bodies Found Huddled on Floor After Fire Is Extinguished -- One Victim Killed by Fright.". Washington Post (Washington, DC). November 27, 1910. Retrieved December 25, 2011. 
  9. ^ McFarlane, Arthur E. (September 1911). "Fire and the Skyscraper: The Problem of Protecting the Workers in New York's Tower Factories". McClure's Magazine. p. 479. Retrieved December 14, 2011. 
  10. ^ (Dutch) "Rapport Brand Hotel Polen Amsterdam". Nationaal Brandweer Documentatie Centrum. December 1977. p. 21. Retrieved December 11, 2011. 
  11. ^ "Jump out of the Fire Into the Net Only as a Final Resort". Eugene Register-Guard (Eugene, Oregon). April 13, 1958. Retrieved December 12, 2011. 
  12. ^ "World's Finest Fire Academy: Blaze conscious Chicago trains firemen in $2-1/2 million building". Ebony (Chicago). September 1961. pp. 58–64. Retrieved December 12, 2011. 

External links[edit]