Kite Attachment - US876690

Charles B. Carroll, patented this simple but clever line climbing device in 1908. "The wind pressure against the bird will carry the roller up the string 2 and on to the plate 3. When the roller 6 is passed off the string 2 and off the end of the V-shaped plate 3, it will become dislocated and fall, and the roller 6 and the arm 8 pivotally secured thereto being heavier than the artificial bird will cause the device to assume a reversed position, in which the artificial bird will sail through the air and eventually fall to the ground." Full Patent.