6 Matching Results

Search Results

Results: 1 - 6

Cement Kiln

Description: Patent for a new and improved cement kiln for drying gypsum and other materials employed in the manufacture of cement and plaster.
Date: April 28, 1902
Creator: Malone, Samuel R.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Cement Plaster Kettle

Description: Patent for a cement plaster kettle. This "invention is an improvement in kettles for cooking gypsum in order to convert the same into cement-plaster" (line 8-10). Illustration included.
Date: April 5, 1904
Creator: Malone, Charles Henry
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Pump Jack

Description: Patent for an improved double-acting pump jack that will require less parts and external force to operate and maintain.
Date: April 29, 1919
Creator: Lively, William
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
Back to Top of Screen