Sheet metal container making – Apparatus to form container closure – Having means uniting pull tab to closure
Patent
1988-05-06
1990-06-26
Schmidt, Frederick R.
Sheet metal container making
Apparatus to form container closure
Having means uniting pull tab to closure
413 62, 413 64, 413 12, 413 14, 72346, 72361, B21D 4312
Patent
active
049367293
ABSTRACT:
A punch press has first and second sets of tooling mounted longitudinally of a press conveyor belt. The second set of tooling is located externally of the usual press columns. A second ram slidably mounted on the outside of the columns is driven by a connecting arm eccentrically mounted on a crankshaft extension. The second ram drives the upper tooling of the second tooling set in a reciprocating manner. The second ram can be operated out of phase with the main ram to reduce the total tonnage required of the press.
REFERENCES:
patent: 3196817 (1965-07-01), Fraze
patent: 3550546 (1970-12-01), Eickenhorst
patent: 4640116 (1987-02-01), Brown
patent: 4723882 (1988-02-01), Wissman et al.
Lavinder Jack W.
Schmidt Frederick R.
Service Tool Die & Mfg. Company
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