Grate Bar (open access)

Grate Bar

Patent for a grate bar.Illustration included.
Date: October 18, 1910
Creator: Wilderspin, Anderson & Earnest, David C.
System: The Portal to Texas History
Hen's Nest. (open access)

Hen's Nest.

Patent for an automatic gate or door for a hen's nest enclosure that will swing shut to keep out intruders when a hen enters and open when the hen leaves.
Date: January 18, 1916
Creator: Buie, Daniel C.
System: The Portal to Texas History
Improvement in Pruning Implements. (open access)

Improvement in Pruning Implements.

Patent for "an improved implement for trimming hedges and for cutting and laying down hedges" (lines 8-10) with instructions and illustrations.
Date: November 18, 1879
Creator: Booker, David
System: The Portal to Texas History
Permutation-Lock. (open access)

Permutation-Lock.

Patent for a permutation or combination lock for mail boxes.
Date: February 18, 1908
Creator: Maxfield, James Robert
System: The Portal to Texas History