Resource Type

Chain Pipe-Wrench. (open access)

Chain Pipe-Wrench.

Patent for certain new and improvements in chain pipe wrenches, including instructions and illustrations.
Date: December 26, 1899
Creator: Bohner, Philip Henry
System: The Portal to Texas History
Paper-Bag Machine. (open access)

Paper-Bag Machine.

Patent for improvements in the paper-bag machine (related to author's previous Patent No. 689,441, December 24, 1901) for the purpose of improving the mechanism for forming the primary fold of the bag-bottom in the bag-folding process, including descriptions of the machinery, parts, and illustrations.
Date: May 5, 1903
Creator: Tyson, Frank
System: The Portal to Texas History