Improvement in Clay Grinder and Mixer. (open access)

Improvement in Clay Grinder and Mixer.

Patent for a new clay grinder and mixer design which "will be found to be especially useful in connection with brick-machines" (p. 2) including illustrations.
Date: May 27, 1879
Creator: Kennedy, John M.
System: The Portal to Texas History
Improvement in Piano-Forte Actions. (open access)

Improvement in Piano-Forte Actions.

Patent for a new piano forte design which "consists in certain novel details of construction, arrangement, and combination of the key-lever and its fulcrum and rest, a receiving-lever, a transmitting-eccentric, a secondary hammer, a principal hammer and its rest, and a damper-action and its connections, whereby greater simplicity and efficiency are obtained" (lines 10-17) including illustrations.
Date: May 27, 1879
Creator: Roedern, George O. V.
System: The Portal to Texas History