Boots – shoes – and leggings
Patent
1994-03-10
1995-08-01
Trammell, James P.
Boots, shoes, and leggings
36447402, G05B 1918, G06F 1700
Patent
active
054385210
ABSTRACT:
To eliminate the need for manually measuring the length of a punch to provide compensation for any shortening of its length in a punch press, a sensor probe is provided at a predetermined height from the punch so that as the punch is driven by its driving ram, it makes contact with the probe. As soon as contact is made between the punch and the probe, the movement of the ram is stopped and its relative position is recorded and compared with a theoretical ram start position for driving, for example, a brand new punch. The difference between the theoretical ram start position and the thus measured position is provided as an offset to reposition the ram so that the wear of the punch is compensated.
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Finn-Power International, Inc.
Trammell James P.
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