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Locking Device for Car-Doors.
Patent for a locking device for a sliding train car capable of locking automatically upon close, including illustrations.
Date:
May 9, 1916
Creator:
Tierney, Henry J.
System:
The Portal to Texas History
Method of Treating Ores.
Patent for "new and useful Improvements in methods of Treating Ores, of which the following is a specification. The present invention relates to a method of treating ores carrying gold and silver values in any form amenable to cyanid treatment or flotation" (lines 6-12).
Date:
May 8, 1917
Creator:
Friberger, Harry Louis
System:
The Portal to Texas History
Separable Locking Rack for Driving Mechanism
Patent for separable locking rack for driving mechanism. Illustrations included.
Date:
October 25, 1910
Creator:
Brewster, Bertram F. & Wilson, Walker Scott
System:
The Portal to Texas History