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5 Matching Results
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Improvement in Tire-Tighteners.
Patent for improvement in tire-tighteners to contract a tire upon its felly without removal.
Date:
November 27, 1876
Creator:
Martin, James
System:
The Portal to Texas History
Improvement in Ironing Apparatus
Patent for improvement to an ironing apparatus to "produce a cheap portable ironing-machine, with which any capable person (and even children) can with very liggle fatigue and labor, do the ironing for a large family in a very short time".
Date:
July 18, 1876
Creator:
Martin, James
System:
The Portal to Texas History
Improvement in Mixing Mineral and Fossil Substances with Bituminized Clay to Form a Plastic Material.
Reissued patent for a chemical process to create a plastic material made of bitumen, clay, and mineral and/or fossil substances.
Date:
September 26, 1876
Creator:
Lea, Pryor
System:
The Portal to Texas History
Improvement in Mixing Mineral and Fossil Substances with Bituminized Clay to Form a Plastic Material.
Patent for mixing mineral or fossil substances with bituminated clay, creating a product that "is a dense, durable, and economical composition, suitable for building both small and massive structures, and for other purposes" (lines 54-57).
Date:
November 11, 1873
Creator:
Lea, Pryor
System:
The Portal to Texas History
Improvement in Combining Bitumen and Clay.
Patent for a method of combining bitumen, water, and clay for such purposes as plastering.
Date:
September 24, 1872
Creator:
Lea, Pryor
System:
The Portal to Texas History