To Form a Bigger Bale
Our goal in this project is a completely mechanized hay handling system in which one machine can build and transport a giant package that needs little or no protection from the weather. This would be accomplished by a machine that could form bales up to 6 ft in diameter and 7 1/2 ft long by picking up a windrow of hay and wrapping it on powered spindles. Bale density would be controlled by the pressure and resulting friction between the bale and bale chamber. Bales could be unloaded when completed, then reloaded later by lifting them with the spindle-arm combination. They could then be transported to the storage area. Perhaps to feed the bales, they could even be rotated in reverse in the Bale chamber and the hay stripped from the bales with a feeder attachment.
This article is published as Haverdink, Virgil and Wesley F. Buchele. "To Form a Bigger Bale," Agricultural Engineering 50 (1969): 683. Posted with permission.