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Roller-Index.
Patent for "improvements in combined spring-rollers and cabinet for ledger-index sheets," (lines 10-12) with instructions and illustrations.
Date:
July 6, 1891
Creator:
Nance, John D.
System:
The Portal to Texas History
Disk Plow.
Patent for a revolving disk plow that pulverizes the soil. The plow is especially designed to prepare the soil for cotton and cultivating between rows of crops. It has a tongue, a cross-bar with a sloping edge, spindles set at an angle to the cross-bar, disks mounted on the spindles, a double scraper for the disks, a gage-wheel, and a pivoting and locking lever on the tongue.
Date:
January 28, 1896
Creator:
Campbell, Singleton
System:
The Portal to Texas History