Coffee Roaster. (open access)

Coffee Roaster.

Patent for a coffee roaster, with key features such as electric heat and agitation of coffee beans during roasting, including illustrations.
Date: May 6, 1918
Creator: Shortt, Everett T.
System: The Portal to Texas History
Interest Calculator (open access)

Interest Calculator

Patent for an adjustable calendar for calculating interest between two dates, including illustrations.
Date: May 6, 1913
Creator: Moody, Jason B.
System: The Portal to Texas History
Improvement in Fences. (open access)

Improvement in Fences.

Patent for improvement in fences using wire rails, including illustrations.
Date: May 6, 1879
Creator: Temby, Joseph W.
System: The Portal to Texas History
Refrigerating Apparatus (open access)

Refrigerating Apparatus

Patent for an improved refrigerating apparatus.
Date: May 6, 1919
Creator: Strange, P. A.
System: The Portal to Texas History
Cutting and Stepping Machine (open access)

Cutting and Stepping Machine

Patent for a cutting and stepping machine meant to replace a human cutter.
Date: May 6, 1919
Creator: Moore, L. R.
System: The Portal to Texas History