with means for temporary energy accumulation, e.g. to overcome dead-centre positions

Full Title

Gearings comprising primarily only links or levers, with or without slides (F16H23/00 takes precedence) > all movement being in, or parallel to, a single plane > for interconverting rotary motion and reciprocating motion > Crank gearings; Eccentric gearings > with means for temporary energy accumulation, e.g. to overcome dead-centre positions