US Patent: 2,856,044 - Automatic shift two-speed press brake


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US Patent: 2,856,044

Automatic shift two-speed press brake

Patentees:

Merrill W. Hazelton (exact or similar names) - Cincinnati, OH

Henry F. Koenig, III (exact or similar names) - Cincinnati, OH

USPTO Classifications:

192/12C, 192/145, 192/18B, 192/225, 192/48.611, 192/48.9, 192/85.09, 74/330, 74/364, 74/365

Tool Categories:

metalworking machines : sheet metal : sheet metal brakes

Assignees:

Cincinnati Shaper Co. - Cincinnati, OH

Manufacturer:

Cincinnati Shaper Co. - Cincinnati, OH

Witnesses:

Unknown

Patent Dates:
Applied:	Dec. 03, 1956
Granted:	Oct. 14, 1958

Patent Pictures:

USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for Cincinnati Shaper Co.

Description:

Press brake that moves quickly until just before the die will contact the workpiece, then slows down so that the workpiece does not make any sudden movements that could injure the operator or kink the workpiece.