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US Patent: 1,586,959
Shaft collar
Patentee: Charles Foster Blake (exact or similar names) - Watertown, NY USPTO Classifications: 269/165, 403/104 Tool Categories: work holding : vises : vise mechanisms Assignees: Prentiss Vise Co., Inc. - Watertown, NY Manufacturer: Prentiss Vise Co. - Watertown, NY Witnesses: Unknown	Patent Dates: Applied: Sep. 18, 1923 Granted: Jun. 01, 1926 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Carl Matthews "Vintage Machinery" entry for Prentiss Vise Co.
Description: This shaft collar has projections that can be bent down into notches cut in the shaft to hold it in place, as opposed to using a set screw.

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