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Cement Block
Patent for a cement block. This invention relates to building blocks made of artificial stone that are connected by tie rods. Illustration included.
Date:
November 27, 1906
Creator:
Woodiwiss, Jason, Matthew; Deal, Frank L. & Burdg, William J.
System:
The Portal to Texas History
Lock.
Patent for an improvement to combination-locks for doors, safe, and bureaus, "with readily-operated means for holding the combination-disks inactive and in position to permit a locking-bolt to be freely operated by a key when so desired, which means will also permit the combination to be set so that the bolt cannot be moved by a key until the disks of the combination have been brought to proper position." (lines 11-18)
Date:
November 25, 1902
Creator:
Dalton, Lewis & Cross, Dick
System:
The Portal to Texas History
Hitching Device
Patent for hitching device for use with hitching posts. Illustration included.
Date:
November 27, 1906
Creator:
Hazlewood, George W. & Robinson, Henry C.
System:
The Portal to Texas History