Davenport also sold Davenport-Winchell three-wheel roller conversions of industrial wheel tractors, Davenport-Frink snow plows, which were built in license from Frink Sno-Plows Inc, and Reynolds patented Mov-Mor rotary scrapers.
Railroad buyers included the Rock Island, Milwaukee Road, Santa Fe, Frisco, and Missouri Pacific.
In 1963, that rule was relaxed and railroads ceased buying industrial-sized locomotives for light switching.
Davenport built a number of locomotives for the United States Army including World War I trench railways, the USATC S100 Class 0-6-0 of World War II, and eighteen larger switcher locomotives during the 1950s, two of which were adjustable in gauge: One could operate on broad gauges up to 5 ft 6 in (1,676 mm), and one on narrow gauges—the latter (3 ft or 914 mm) operating for a period on the Denver & Rio Grande Western Railroad.
Three Davenport 500 HP locomotives (built in 1952) of the State Railway of Thailand[3] are still in service as of March 2023.