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The new Model 721/722 was introduced in 1948. Deluxe versions became available in 1955. The Model 725 variant was later introduced in 1958. These models all share a common design differing only by features and may be collectively referred to within this article as the Model 721 unless otherwise noted. Model 721 production ended in 1961 with the ...
The first upright vacuum cleaner was invented in June 1908 in North Canton, Ohio, by department store janitor and occasional inventor James Murray Spangler.Spangler was an asthmatic, and suspecting the carpet sweeper he was using at work was the cause of his ailment, he created a basic suction-sweeper by mounting an electric fan motor on a carpet sweeper and then adding a soap box and a broom ...
An exploded-view drawing is a diagram, picture, schematic or technical drawing of an object, that shows the relationship or order of assembly of various parts. [1]It shows the components of an object slightly separated by distance, or suspended in surrounding space in the case of a three-dimensional exploded diagram.
The firm was the successor to the firm of Owens, Ebert & Dyer (founded in 1845 by Job E. Owens) which went into receivership in 1876. [1]In 1882, George A. Rentschler, J. C. Hooven, Henry C. Sohn, George H. Helvey, and James E. Campbell merged the firm with the iron works of Sohn and Rentschler, [1] [2] and adopted the name Hooven, Owens, Rentschler Co.
Patent model of Daniel Hess's carpet sweeper. In 1860 a manual vacuum cleaner was invented by Daniel Hess of West Union, Iowa. Called a "carpet sweeper", it gathered dust with a rotating brush and had a bellows for generating suction. [4] [5] Another early model (1869) was the "Whirlwind", invented in Chicago in 1868 by Ives W. McGaffey. The ...
In 1937, model 719 was revised to become model 743 and introduced air conditioning and a diesel engine. Models 719 and 743 were both branded as the Super Coach by Greyhound, and sales were effectively limited to Greyhound and its affiliates. Greyhound Lines purchased all 1,256 units of model 743 produced between 1937 and 1939. [17] [16]
William Hoover may refer to: Buster Hoover (William James Hoover), American outfielder in Major League Baseball William G. Hoover , American computational physicist
The Hoover Cyclecar was an American cyclecar manufactured by H. H. Hoover in St. Louis, Missouri; a company was established to manufacture the vehicle in October 1913. [1] It was a two-passenger vehicle powered by a single-cylinder , 5 hp (3.7 kW) engine.