By 'wide section' rims, I just mean boxy rims that are wider than you can find today. Not sure it's an actual accepted term. Common for touring bikes in the early 80s intended for 1 1/4" tires. or bigger. And the rims themselves are about 1 1/4" wide.
I have them on a couple of early 80s touring bikes. Wolber Gentleman 81 and that sort of thing.
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● 1971 Grandis SL ● 1972 Lambert Grand Prix frankenbike ● 1972 Raleigh Super Course fixie ● 1973 Nishiki Semi-Pro ● 1979 Motobecane Grand Jubile ●1980 Apollo "Legnano" ● 1984 Peugeot Vagabond ● 1985 Shogun Prairie Breaker ● 1986 Merckx Super Corsa ● 1987 Schwinn Tempo ● 1988 Schwinn Voyageur ● 1989 Bottechia Team ADR replica ● 1990 Cannondale ST600 ● 1993 Technium RT600 ● 1996 Kona Lava Dome ●