Machine for Grinding Disks. (open access)

Machine for Grinding Disks.

Patent for improvements in grinding-machines in which it can “hold the disk rigidly at a desired angle and can be adjusted from or toward a grinding device;” (lines 13-15) by using a “combination of an adjustable gear, a grinding-wheel and means for imparting motion from the grinding-wheel to the gear; of a spring-pressed roller above the gear and adapted to hold a disk thereon in contact with the wheel.” (Page 2, lines 65-70) Illustration is included.
Date: March 17, 1903
Creator: Shipp, Abijah T.
System: The Portal to Texas History
Washboard (open access)

Washboard

Patent for an improved washboard, that will be "simple, inexpensive, and efficient" while allowing water to fully drain from it after washing is finished, including illustrations.
Date: July 17, 1900
Creator: Bailey, Robert E.
System: The Portal to Texas History
Draft Equalizer. (open access)

Draft Equalizer.

Patent for improvement to draft-equalizers.
Date: April 17, 1900
Creator: Billington, Wesley E.
System: The Portal to Texas History