Design and patent Rotary jail

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cover sheet patent application.


the application united states patent no. 244,358, on july 12, 1881 has description:



the object of our inventions produce jail in prisoners can controlled without necessity of personal contact between them , jailer or guard... consists, first, of circular cell structure of considerable size (inside usual prison building) divided several cells capable of being rotated, surrounded grating in close proximity thereto, has such number of openings (usually one) necessary convenient handling of prisoners.






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