4 Matching Results

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Process of Purifying Paraffin. (open access)

Process of Purifying Paraffin.

Patent for improvements in the process of purifying paraffin wax.
Date: August 27, 1918
Creator: McAfee, Almer M.
Object Type: Patent
System: The Portal to Texas History
Purifying Oils (open access)

Purifying Oils

Patent that converts low grade petroleum into higher grade petroleum. The process warms aluminum chlorid with petroleum material in a nonviolent way to make a purifying oil.
Date: August 27, 1918
Creator: McAfee, Almer M.
Object Type: Patent
System: The Portal to Texas History
Rail Joint (open access)

Rail Joint

Patent for improved rail joints to lock rail sections together against accidental displacement with illustrations.
Date: August 15, 1918
Creator: Stewart, Amon Leslie
Object Type: Patent
System: The Portal to Texas History

[Postcard of Cattle at Water]

Postcard of red and white speckled cattle wading into shallow water, described as "Trail herd watering." The message on the back is illegible. The postcard is addressed to "Mrs. W. P. H. McFaddin Beaumont, Texas."
Date: August 4, 1918
Creator: unknown
Object Type: Postcard
System: The Portal to Texas History