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Ledger with Visible Index.
Patent for a ledger with a visible index of numbers and names with tabs to allow accounts to be looked up easily.
Date:
April 19, 1910
Creator:
Kellner, Eugene
System:
The Portal to Texas History
Saw-Table Gage.
Patent for a saw-table cutting stop that can be very quickly set and which automatically indicates the distance from the stop to the saw.
Date:
April 19, 1921
Creator:
Krocker, Adolf G.
System:
The Portal to Texas History
Stove Pipe Damper.
Patent for a new and improved stove-pipe damper. This design consists in "[t]he combination, with a damper-blade with a spindle rigidly attached thereto and having at one end a cylindrical pivot projecting beyond the periphery of the blade, and at the opposite end a screw projecting beyond said periphery, of a supporting-ring in which the projecting ends of said spindle are journaled, the bearing of the cylindrical end of said spindle being in an inwardly-bent portion of said supporting-ring" (lines 50-59).
Date:
April 19, 1887
Creator:
Lederle, Edward Emil
System:
The Portal to Texas History