Patent information:

Patent:Utility 1,143,885
Patented:June 22, 1915
Applied:January 27, 1912
Title:Process for Making a Compound of Glass
Description:Glass made from cullet with large amount of lime added for toughness
Category:Glass
Assigned to: 

Patentee Information:

BROOKFIELD, Henry M. New York, NY

Class and subclass information:

Class:501COMPOSITIONS: CERAMIC
Subclass:70CERAMIC COMPOSITIONS Glass compositions, compositions containing glass other than those wherein glass is a bonding agent, or glass batch forming compositions Silica containing 40 percent - 90 percent by weight silica And aluminum or iron compound And divalent metal oxide (e.g., oxides of zinc, cadmium, beryllium, alkaline earth metal, magnesium, etc.) Calcium oxide containing;
Class:65GLASS MANUFACTURING
Subclass:33.1PROCESSES Devitrifying glass or vitrifying crystalline glass (e.g., starting with or forming crystalline glass, etc.);
Class:241SOLID MATERIAL COMMINUTION OR DISINTEGRATION
Subclass:22 

Known specimens:

None known