Word: cottons
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Dates: during 1920-1929
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...cotton picker...
...cotton boller...
...cotton cleaner...
Picker, In lowland fields, cotton crops ripen unevenly, cannot be picked all at the same time. The mechanical picker had to be so de-signed that it would discriminate between ripe and unripe bolls. On the new machine, two arms reach out and gather in the spreading branches of the cotton bushes. Two vertical, revolving cylinders spined with close-set spindles, brush along the branches gently. The cylinders slide backwards horizontally on their bases at the same speed as the whole machine is moving forward. This saves the branches from being torn off the bushes. By the time the cylinders...
Boller. Where cotton ripens evenly, all the bolls, open or not, may be taken at once. The new stripping machine is simpler than the picker. Its mechanical fingers simply remove all bolls from the branches brought in by the machine's arms, and drop them...