Resource Type

Nut-Lock. (open access)

Nut-Lock.

Patent for nut locks that "as for its object to provide simple means for locking the nut against accidental displacement, at the same time allowing it to be removed by the proper application of force, and, furthermore, to permit the permanent locking of the nut at a pre-determined point." (Lines 9-15) Includes instructions and illustrations.
Date: August 31, 1897
Creator: Millen, George
System: The Portal to Texas History
Ice Machine. (open access)

Ice Machine.

Patent for a new and improved ice machine. This design consists in "[a]n oil-trap for compression ice-machines, consisting of cylinders provided with inclined diaphragms, and having extensions provided with water-chambers and pipes extending down through the same" (lines 96-100). Said pipes are "to communicate with the cylinders, one of said pipes communicating with the extension of one of the cylinders and the other pipe leading from the ammonia-pump, said cylinders having a suitable arrangement of pipes and valves" (lines 1-6).
Date: August 31, 1886
Creator: Diener, Frederic
System: The Portal to Texas History
Motor (open access)

Motor

Patent for a motor for a sewing machine that is simple and less expensive.
Date: August 31, 1900
Creator: Daniels, James R.
System: The Portal to Texas History