Automatic Vaporizing-Plug (open access)

Automatic Vaporizing-Plug

Patent for "certain new and useful Improvements in Automatic Vaporizing-Plugs" (lines 5-6). "This invention... has for its principle object the production of a device which is adapted to be carried upon a manifold of an internal combustion engine... so that upon each stroke of the piston, or pistons, air will be drawn into the intake manifold where it will be mixed with gas passing therethrough, thus forming a charge which will have more power when exploded and which will prevent the formation of carbon deposits within the cylinders and which will also reduce the cost of operation of the engine." (lines 9-23).
Date: July 2, 1918
Creator: Floyd, William B.
System: The Portal to Texas History
Swing (open access)

Swing

Patent for a new lawn swing design meant to be "a simple and inexpensive swing which will be strong and durable" (lines 10-12) and that will engage all muscles in its operation, including illustrations.
Date: July 2, 1918
Creator: Bretz, Don C.
System: The Portal to Texas History
Seeding Attachment for Disk Harrows (open access)

Seeding Attachment for Disk Harrows

Patent for "improvements in seeding attachments for disk harrows, whereby the operation of harrowing the stubble and seeding-grain may be accomplished simultaneously" (lines 10-14).
Date: July 2, 1889
Creator: Rogers, Jonathan Judson & Kennedy, Oliver Sylvester
System: The Portal to Texas History
Improvement in Car-Couplings. (open access)

Improvement in Car-Couplings.

Patent for an "improvement in car-couplings; and it consists in the arrangement and combination of devices whereby the pin is supported in a raised condition; also in a spring-slide for holding up the link ready for coupling with another car." (lines 13-18)
Date: July 2, 1878
Creator: Gassaway, John H.
System: The Portal to Texas History