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File:Brake Diagram.png

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I drew it for Knowledge on Feb. 25 2008 from an Ann Arbor Railroad mechanical drawing of Nov. 25 1969, in turn from the book "Freight Cars of the Ann Arbor Railroad 1947-1985" by Craig Wilson, published 1989 by the Ann Arbor Railroad Technical & Historical Association. Software used: Appleworks
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This is a brake diagram, intended to show the lever and rod arrangements. It is flattened into two dimensions for that purpose. Gray areas give only the general shape of the railroad car. Rod lengths are not accurate (and don't matter). Lever lengths are accurate from the Ann Arbor Railroad
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Drawn for Knowledge by Robert MacDowell on Feb. 25 2008 from an Ann Arbor Railroad mechanical drawing of Nov. 25 1969. Software used: Appleworks 6.
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drawings for a 77 ton gondola, #2000 to #2094, built 1969. Note how the lever length ratios lead to equal pressure applied to each axle.
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File:Brake Diagram.png
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