Electric knife

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An electric carving knife

An electric knife or electric carving knife is an electrical kitchen device used for slicing foods. An electric knife requires less physical effort than an ordinary knife and produces neater slices. The device consists of two serrated blades that are clipped together. When the appliance is switched on the blades continuously move lengthways to provide the sawing action.

Invention[edit]

The invention of the electric knife is usually attributed to Jerome L. Murray,[1][2] but there are other claimants such as Clem E. Kosterman who filed a patent in 1939.[3][4]

Other uses[edit]

They are also sometimes used for other purposes, including sculpting polyurethane foam rubber,[5][6] cutting wood, cutting metal, and other solid or semi-solid substances and materials. Electric knives can be corded or cordless.

See also[edit]

References[edit]

  1. ^ Agis Salpukas, "Jerome Murray, 85, a Many-Faceted Inventor", obituary, New York Times, 11 February 1998.
  2. ^ Carl W. Hall, A Biographical Dictionary, p.158, Purdue University Press, 2007 ISBN 1557534594.
  3. ^ "With the inventors", Popular Science Monthly, volume 36, no.2, p.22, March 1940 ISSN 0161-7370
  4. ^ C. E. Kosterman, "Power operated knife", US patent 2180244, 14 November 1939.
  5. ^ Tip No. 080 A Method for Cutting Open Cell Polyurethane Foams NASA Materials Engineering Branch
  6. ^ Sylvia Moss. Costumes and Chemistry: A Comprehensive Guide to Materials and Applications, Quite Specific Media Group Ltd, 2001. ISBN 0-89676-214-9 p317

External links[edit]