Presses – Reciprocating press construction – With mechanical force multiplier
Patent
1991-05-29
1993-01-05
Sewell, Paul T.
Presses
Reciprocating press construction
With mechanical force multiplier
100286, 74 69, B30B 106, B30B 110, F16H 2114
Patent
active
051760754
ABSTRACT:
A control mechanism for driving a movable lower platen in a platen press or similar machine including a fixed upper platen, the movable lower platen adapted for movement towards and away from the fixed upper platen, the machine also including a plurality of nipper bars adapted for movement between the platens to remove sheet material from between the platens. The control mechanism includes a crankshaft, a plurality of cranked levers articulated to the movable lower platen, a plurality of connecting rods, each of the connecting rods articulated to the crankshaft and articulated to one of the cranked levers, and a wheel having a groove therein on a side of the wheel facing the crankshaft in which a tenon or finger moves to change the speed of movement of the crankshaft and hence the movement of the lower platen.
REFERENCES:
patent: 307214 (1884-10-01), Monell
patent: 755083 (1904-03-01), Vandewerker
patent: 1172936 (1916-02-01), Burn
patent: 2447839 (1948-08-01), Bingley
patent: 2507556 (1950-05-01), Bobst
patent: 3182588 (1965-05-01), Bolliger
patent: 4013003 (1977-03-01), Finsterwalder et al.
patent: 4276823 (1981-07-01), Rotzler
Iberica A.G., S.A.
Patterson M. D.
Sewell Paul T.
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