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Nut-Lock. (open access)

Nut-Lock.

Patent for improvements in nut-locks by using a locking attachment; “the attachment comprises, essentially, a shouldered pin adapted to underlie the lower surface of the nut, adjacent one of the corners thereof, and project into suitably-formed receiving-apertures in the surface of the member to be clamped or in a washer designed to be employed between said member and the nut.” (Lines 15-22) Illustration is included.
Date: July 8, 1902
Creator: Popplewell, Felix King
System: The Portal to Texas History
Design for a Cotton-Picker. (open access)

Design for a Cotton-Picker.

Design patent for a cotton-picker that is designed to be fitted over the fingers of the operator.
Date: July 4, 1899
Creator: Richards, Ruben F.
System: The Portal to Texas History
Cultivator Attachment (open access)

Cultivator Attachment

Patent for cultivator attachment improvement "for the purpose of thinning cotton plants to save chopping" (p. 1, lines 9-10). Improved cultivator attachment is used in conjunction with cultivator shovel to cause intermittent deposition of soil on plants to achieve thinning.
Date: July 3, 1906
Creator: Teeter, William Thomas
System: The Portal to Texas History