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6 Matching Results
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Music-Indicator.
Patent for a music indicator, which shows sheet music notations and the name of the note and major and minor chords on a device, which is placed over the keyboard of a piano to show where the different notes are for use in teaching music.
Date:
January 21, 1908
Creator:
Thrash, William E.
System:
The Portal to Texas History
Bread-Cutter
Patent for a bread cutter which can cut multiple loaves of bread in succession and cuts of the crust of the bread.
Date:
November 12, 1907
Creator:
Hassell, Frank J.
System:
The Portal to Texas History
System of Electrical Operation.
Patent for an electrical system, which reduces the amount of power used to run a generator when there is low usage of the generator, thereby saving fuel.
Date:
July 2, 1907
Creator:
Slaughter, Joel C.
System:
The Portal to Texas History
System of Electrical Operation.
Patent for an electrical system to power generators, which can reduce the power flow to the generator during low usage periods.
Date:
July 2, 1907
Creator:
Slaughter, Joel C.
System:
The Portal to Texas History
Design for a Music-Indicator
Patent for an "ornamental design for a music-indicator" (lines 11-12).
Date:
September 4, 1906
Creator:
Thrash, William Edwin
System:
The Portal to Texas History
Governing Mechanism
Patent for a governing mechanism. This invention relates to governing a plurality of engines in unison. Illustration included.
Date:
March 8, 1904
Creator:
Ball, Philip De C. & Wakefield, Charles L.
System:
The Portal to Texas History