Blacking-Brush (open access)

Blacking-Brush

Patent for a new and useful improvement in blacking brushes, including instructions and illustrations.
Date: April 18, 1899
Creator: De Witt, Joseph R.
System: The Portal to Texas History
Improvements to Demountable Wheels (open access)

Improvements to Demountable Wheels

Patent for a new design for the demountable wheel with a new simple and strong construction that is made of a lighter pressed steel that may be manufactured at a relatively lower cost.
Date: April 18, 1916
Creator: Simmons, Oliver G.
System: The Portal to Texas History
Wrench and Cutter. (open access)

Wrench and Cutter.

Patent for a simple, durable, and economic wrench and cutter that is easily used to turn nuts, pipes, or to cut pipes. The wrench does not need to be removed while cutting.
Date: April 18, 1893
Creator: Fletcher, Theodore
System: The Portal to Texas History
Electric-Current Controller. (open access)

Electric-Current Controller.

Patent for a new and improved electric current controller for "use in connection with incandescent electric lamps" (line 10 - 11).
Date: April 18, 1899
Creator: Breeding, James Bouldin
System: The Portal to Texas History
Valve-Grinding Implement (open access)

Valve-Grinding Implement

Patent for improvements in Valve-Grinding implements. This improvement is applicable to practically any type of engine or motor and to the different types of valves employed therein. This valve relates to the rotating of the valves of internal combustion engines and the like when the same is being ground to effect a proper seating action.
Date: April 18, 1922
Creator: Hood, William S.
System: The Portal to Texas History