page_title: Dempsters
section_title: Windmills
hierarchical_section_title: Dempsters / Products / Windmills
caption_attribution_description: English: Photo of Dempster windmill at San Jon, New Mexico
context_page_description: Dempsters LLC, commonly referred to as "Dempsters", is a privately held American company that produces submersible pumps, windmills and wind energy systems, water systems, recycling trailers, fertilizer equipment, and accessories. Originally named the Dempster Company and then the Dempster Wind Mill Company, it was incorporated under the laws of Nebraska in 1886 as Dempster Mill Manufacturing Company. The name was later changed to Dempster Industries and again to its present Dempsters LLC; the company is headquartered in Beatrice, Nebraska.
context_section_description: Because of their prominence on the farms and ranches in the United States countryside, Dempster windmills may be the company's most recognized product.  In 1885 Dempsters produced its first pumping windmill, the Original Dempster Solid Wheel Mill.
  This wooden wheel mill was produced in both 10 and 12 foot diameter models. In 1892 the Beatrice company began to produce and market its first all steel mill, the Queen City. Over the next 50 years it produced a number of mill design variations which incorporated a guiding vane to orient the mill wheel with respect to the direction of the prevailing wind. These included the Original Solid Wheel, the Queen City, the Improved Queen City, the Dempster Steel Mill, the Improved Dempster Steel Mill, the Dempster No. 6, the Dempster No. 7, the Arrow Steel, the Dempster No. 8, the Dempster No. 9, the Dempster No. 10, the Dempster No. 11, and the Dempster No. 12. (See reference 2) These mills are summarized in the table below.
  In 1981 Dempsters replaced the arrow-shaped vane on the No. 12 mill with a diamond-shaped vane patterned after the company logo which was "Dempsters" superposed on a diamond-shaped background. After two years it was determined in the field that the new vane did not function as effectively as the old one, and the diamond-shaped vane was dropped in 1983.
  In addition to these many mill designs that included a vane for direction control, the company designed, produced and marketed five different vaneless windmills between 1892 and 1941, Nos. 1, 2, 3, 4 and No. 14.
  Dempster Vaneless
caption: Dempster Windmill, San Jon, NM
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