Resource Type

Internal Combusion System (open access)

Internal Combusion System

Patent for new and useful Internal-Combustion Engine. Improves the provision of an engine which the cylinder is provided with a semi-spherical upper end, fr the rotatable reception of similar shaped power cylinder carrying shell. Specification of letter patent with illustration. Serial number 789.146
Date: May 12, 1914
Creator: Clough, George G.
System: The Portal to Texas History
Protector for Type-Writer Frames. (open access)

Protector for Type-Writer Frames.

Patent for typewriter frame protector. The protector attaches to the part of the typewriter frame which is subjected to frequent contact by the user. The protector prevents the frame from wear which can lead to rust.
Date: March 12, 1918
Creator: Glasscock, Gerald A.
System: The Portal to Texas History
Brick Fire Box Construction. (open access)

Brick Fire Box Construction.

Patent for an improved fire box liner construction for oil fueled locomotives that is made from bricks in an interlocking design that does not require cement and will not shake apart from vibration. Includes illustrations.
Date: September 12, 1911
Creator: Blackmond, William C. & Stoy, Guy Everett
System: The Portal to Texas History