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Improvement in Scaffold-Clamps.
Patent for a reusable scaffold clamp for assembling builders' scaffolds, eliminating the need for nails or bolts.
Date:
April 24, 1874
Creator:
Crockett, John R.
System:
The Portal to Texas History
Improvement in Car Brakes and Starters
Patent for improvements in rail road-car breaks, starters, and checkers. "The nature of the invention consists in certain constructions, combinations, and arrangements of parts" (lines 19-21).
Date:
April 24, 1877
Creator:
Marean, William
System:
The Portal to Texas History