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Clock Attachment
Patent for an improved clock attachment to operate "a series of alarms or signals arranged in different rooms of a building or in other separated stations for simultaneously sounding the alarms or for operating the signals at predetermined times." (lines 11-17) including illustrations.
Date:
January 11, 1915
Creator:
Moore, John R.
System:
The Portal to Texas History
Locomotive Valve-Gear.
Patent for improvement to the locomotive valve-gear by utilizing a centrally-pivoted lever.
Date:
January 11, 1887
Creator:
Lewis, Wallace James
System:
The Portal to Texas History