CATEA.orgassistivetech.netATWiki
Personal tools
Views

Interested in disability history? Check out what happened Today in AT History!

April 2

From ATWiki

Jump to: navigation, search
April
SunMonTueWedThuFriSat
            1
2 3 4 5 6 7 8
9 10 11 12 13 14 15
16 17 18 19 20 21 22
23 24 25 26 27 28 29
30


Contents

Technology

  • 1889 - Charles Martin Hall receives a patent for an electrolytic method of producing aluminum cheaply, bringing the metal into wide commercial use in products including wheelchairs and portable ramps (and some bowling ramps). [1] [2]


Sports

Wheelchair bowling ramp, invented by Harold J. Steel.
Wheelchair bowling ramp, invented by Harold J. Steel.


Births


Deaths

  • 1872 - Samuel F. B. Morse, inventor of the telegraph dies. To send messages over the telegraph, he developed a code of dots and dashes to represent each letter. Today, some people with disabilities use one or two switches and “Morse code” to type on a computer. [5]


References

  1. Charles Martin Hall. National Inventors Hall of Fame. Accessed March 7, 2008.
  2. Manufacture of Aluminium. U.S. Patent #400,665. April 2, 1889.
  3. Steel Sports Aparatus. U.S. Patent 3,083,967. April 2, 1963.
  4. Thomas Rhodes Armitage - RNIB's Founder. Royal National Institute of the Blind. Accessed March 10, 2008.
  5. Samuel F. B. Morse. Locust Grove, the Samuel Morse historic site. Accessed March 13, 2008.