2 Matching Results

Results open in a new window/tab.

Process of Heating Oil-Retorts and Apparatus Therefor. (open access)

Process of Heating Oil-Retorts and Apparatus Therefor.

Patent for "a method of securing even heating of oil retorts and the like throughout their length" and "a new apparatus, particularly intended for the heating and cracking of oils to convert the same into pyrolytic products". The invention may be used for any oil converting retort, but the patent description relates to the production of gasoline.
Date: August 16, 1921
Creator: Alexander, Clive M.
Object Type: Patent
System: The Portal to Texas History
[Mifflin Alkohol Massage Letter and Pamphlet] (open access)

[Mifflin Alkohol Massage Letter and Pamphlet]

A pamphlet and introductory letter advertising Mifflins Alkohol Massage, an ethyl alcohol-based tonic for treating various skin ailments. A return order postcard and the sending envelope are included.
Date: August 22, 1922
Creator: Mifflin Chemical Corporation
Object Type: Pamphlet
System: The Portal to Texas History