Pulley System Speeds Data (Mar, 1937)

Pulley System Speeds Data
TO SPEED written messages and other data between buildings at Harvard University in Cambridge, Mass., Dr. Harry Rowe Mimno, assistant professor of physics, developed a mechanical carrier system operated by a motor driven rope-and-pulley.

Messages are placed in an aluminum cylinder and carried between buildings by the motivated rope-and-pulley system. Upon reaching its destination, the cylinder causes a red light to flash, informing office personnel that message is waiting.

  1. Don says: December 4, 20077:26 am

    Wow; a high-speed serial data interface!

  2. jayessell says: December 4, 200710:01 am

    Is it like a series of tubes?

  3. Stannous says: December 4, 200712:34 pm
  4. Charlie says: December 4, 200712:46 pm

    No, this is a series of tubes: http://blog.modernmecha…

  5. jayessell says: December 4, 20071:37 pm

    No, this is a series of tubes: http://video.google.com…

  6. keith pearce says: July 27, 20096:51 am

    help needed,

    we need the answer to the following,
    we have a start point of 900m above sea level and a finishing point of 300m above sea level,
    the start and finish are 3500m apart
    we now fix a cable between
    but we want to send a 250kilo weight down the cable.
    to stop the weight crashing into the finishing point will need to raise the height of the finishing point so the weight will run out of steam
    what height would the tower need to be ?

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