Cotton-Harvester (open access)

Cotton-Harvester

Patent for a cotton harvester that aides in picking the most difficult part of cotton to pick by hand. Includes instruction and illustrations.
Date: January 30, 1917
Creator: Ford, James
System: The Portal to Texas History
Calculating-Machine (open access)

Calculating-Machine

Patent for certain new and useful improvements in calculating machines. Whereby substantially correct calculations may be registered or recored without using a series of superfluous or immaterial numbers. The machine will round prices up to the nearest cent. For example, $0.024 becomes $0.02 while $0.025 becomes $0.03. Illustrations included.
Date: March 6, 1917
Creator: Hardgrave, Everett J.
System: The Portal to Texas History