938 records — Page 23 of 71
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Dates:
1965
Level:
file
Collection ID:
NMAH.AC.0169
Repository:
Archives Center, National Museum of American History
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Creators:
Adler, Solomon, 1901-1989
Dates:
1916-1980
bulk 1950-1966
Size:
4.5 Cubic feet (5 boxes, 1 oversize folder)
Collection ID:
NMAH.AC.1157
Repository:
Archives Center, National Museum of American History

The papers document independent inventor Solomon Adler's work with sewing machine technology through correspondence, photographs, notes, drawings, sketches, patents, litigation records, and printed materials. The collection provides insight into both an independent inventor's process of invention and Japanese work culture during the post-World War II period.

Found In
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Creators:
Ehrat, Arthur
Fleckner, John A., 1941-
Dates:
2011
1865-2005
bulk 1970-1990
Size:
10 Cubic feet (26 boxes)
Collection ID:
NMAH.AC.0907
Repository:
Archives Center, National Museum of American History

Arthur Ehrat invented and patented a breakaway basketball rim, fashioning his prototypes from bolts, metal braces and one key part: a piece of the heavy-duty coil spring on a John Deere cultivator. His invention helped to revolutionize the way basketball is played because players could slam dunk the ball with fewer injuries and without bending the rims or breaking backboards. This collection includes correspondence, legal documents --such as patent papers, litigation files and licensing agreements --photographs and sketches that relate to the basketball invention, as well as materials regarding his two field spreader patents and other invention ideas.

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Creators:
Rabinow, Jacob, 1910-
Engineering and Industry, Division of, NMAH, SI.
Dates:
1947-1990
Size:
5.5 Cubic feet (14 boxes)
Collection ID:
NMAH.AC.0403
Repository:
Archives Center, National Museum of American History

The collection documents three major areas of Jacob Rabinow's work in improvement of electronic and other devices: phonograph record players, optical character recognition (reading machines) and automatic self regulation of watches and clocks.

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Dates:
1932-1933
Level:
file
Collection ID:
NMAH.AC.0915
Repository:
Archives Center, National Museum of American History

WBBM reception noting moon, sunspots, and meteor hour rates; harmonic analysis, Pasadena, California; note on Gas-Filled Amplifier-Oscillator Tubes; developed by Raytheon; receptions at various locations with data and graphs; Field Strength Calculation Curves, 1932; Chart for Converting Power & Voltage into d.b.s.; VE9GW at Tufts College; antenna d...

938 records — Page 23 of 71