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US Patent: 199,955
Improvement in screw hoisting-pulley apparatus
Patentee: Alfred Box (exact or similar names) - Philadelphia, PA USPTO Classifications: 184/13.1, 254/343, 254/358, 254/389, 294/74, 294/82.12 Tool Categories: material handling : hoists, winches, come-alongs Assignees: None Manufacturer: Alfred Box & Co. - Philadelphia, PA Witnesses: John E. Roberts Theodore F. Scott	Patent Dates: Applied: Nov. 12, 1877 Granted: Feb. 05, 1878 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Alfred Box & Co.
Description: This patent hoist was manufactured by Alfred Box & Co. for many years. It is seen in an 1892 ad in American Machinist.

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