John Danner

John Danner (March 10, 1823 - April 12, 1918) invented and patented (May 16, 1876)[1][2][3] the pivot and post revolving bookcase. His bookcase hangs suspended from a simple cast iron bearing which sits on top of an inner column or post. The revolving mechanism consists of two nesting cast iron cones that provide a precise pivot point supporting the entire weight of the bookcase. The top support suspension design addressed the binding and racking problems of previous bottom bearing Lazy Susan type bookcases. "These cases, with their immense load, revolve with a slight touch of the hand; are noiseless in operation, and will last a lifetime."[4] Originally designed to hold 32 volumes of the Encyclopedia, it is a compact, rotating bookcase. "It is a square of 22 inches taking up no more room on the floor than an ordinary chair."[5]

John Danner
Born(1823-03-10)March 10, 1823
Ohio
DiedApril 12, 1918(1918-04-12) (aged 95)
Canton, Ohio
OccupationInventor
Known forInventing the pivot and post revolving bookcase
Signature

Biography

Born in Canton, Ohio. He established the John Danner Manufacturing Company in 1874. Yale College ordered a bookcase in 1877. He won a gold medal at the Paris Exhibition the next year. "Several orders from Czarist Russia, kept the company busy through the panic of 1893."[2] In 1903, a fire destroyed the entire factory. The factory was rebuilt and ran for another 13 years. In 1916, the Gillian Mfg. Company purchased the John Danner Manufacturing Company.[6]

He also edited the book Old Landmarks of Canton and Stark County, Ohio, published in 1904.[7]

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gollark: Do you understand "sarcasm"?
gollark: Since anyone having possible access to dangerous things is entirely unacceptable, we must deploy laser bees against anyone who does things.
gollark: To stop people doing anything dangerous, everyone will be isolated into 8m³ airtight concrete cubes, so they cannot do dangerous things.

References
  1. "IMPROVEMENT IN REVOLVING BOOK-CASES - Google Patents".
  2. Kenney, Kimberly A. (2003). Canton: A Journey Through Time. Arcadia Publishing. p. 50. ISBN 9780738524511.
  3. Chapman Bro's (1892). Portrait and biographical record of Stark county, Ohio. Chapman Publishing Company. p. 161.
  4. Danner, John (1884). Illustrated and descriptive circular of Danner's revolving book cases ... useful, durable, graceful and neat. John Danner Manufacturing Co. (Canton, Ohio).
  5. Library Journal. R. R. Bowker Co. 1877.
  6. Iron Age. volume 98. David Williams Company. 1916. p. 1158.
  7. Danner, John, ed. (1904). Old Landmarks of Canton and Stark County. Logansport, Ind.: B. F. Bowen.
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