Bookbinding (open access)

Bookbinding

This is a letter patent for the bookbinding invention as a means for holding books, pamphlets, catalogs, and other similar paper materials together. The purpose of this invention is to make it possible to place additional material inside the same covers, and with the original contents of a book without breaking or tearing the binding.
Date: June 22, 1911
Creator: Robinson, Edward K.
System: The Portal to Texas History
Closet-Flushing Mechanism. (open access)

Closet-Flushing Mechanism.

Patent for a water closet flushing mechanism, which prevents the water from standing in the toilet bowl where it is liable to freeze in cold weather.
Date: June 20, 1911
Creator: Parker, Thomas H.
System: The Portal to Texas History
Combined Corner Brace and Hinge for Screens (open access)

Combined Corner Brace and Hinge for Screens

Patent for combined corner brace and hinge for screens. Illustration included.
Date: June 12, 1911
Creator: Kirk, Robert L.
System: The Portal to Texas History
Metal Storage-Tank (open access)

Metal Storage-Tank

Patent for a multi-part/multi-section metal storage tank (also known as a knock-down tank). Parts are secured by a clamp.
Date: June 13, 1911
Creator: Harry, Jefferson D.
System: The Portal to Texas History
Refrigerator (open access)

Refrigerator

Patent for a refrigerator. This invention uses ice for cooling and designed to provided greater cooling efficiency. Illustration included.
Date: June 13, 1911
Creator: Baer, Sylvan Titche
System: The Portal to Texas History