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US Patent: 444,475
Device for raising and lowering propellers
Patentees: Alfred Weed (exact or similar names) - Tarrytown, NY John Rockwell (exact or similar names) - Tarrytown, NY USPTO Classifications: 114/163, 440/65 Tool Categories: structures : boats and ships transportation : boats and ships Assignees: None Manufacturer: Not known to have been produced Witnesses: De B. Wilmot Daniel E. Delavan Frank Turner W. D. Lewis	Patent Dates: Applied: May 23, 1890 Granted: Jan. 13, 1891 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Alfred Weed & Co.

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