US Patent: 1,670,648
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| Automatic punching press
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Patentee:
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| Otto S. Beyer (exact or similar names) - Brooklyn, NY |
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Patent Dates:
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| Applied: |
Aug. 19, 1925 |
| Granted: |
May 22, 1928 |
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Jeff Joslin
Vintage Machinery entry for E. W. Bliss Co.
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Description: |
| This improvement to punch presses is particularly intended for presses that punch out circular holes or slots for forming motor rotor or stator cores. Typically, a single pair of dies punches one hole or slot at a time, and the press is cycled several times with automatic feed to produce a completed work-piece. This improvement allows the press to cycle very quickly, which is achieved by gearing up a clutch-controlled shaft to drive the punch, with corresponding improvements to the feeder. In general, reciprocating movements are replaced with rotary movements, the only exception being the punch-head itself. |
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