Single handle lid opening, closing and locking mechanism for a large capacity pressure cooker

Abstract From the Canadian patent

A single handle-actuated lid opening closing, and locking mechanism for a large capacity pressure cooker having an open-top cooking vat and a counter-balanced lid shiftable vertically between a vat open and a vat closed position. The mechanism comprises a pair of slotted hook arms mounted to either side of the vat. A cam bar extends transversely of the vat lid and is provided with a forwardly extending arm near each of its ends. The forward ends of the arms are joined by a bar constituting a handle in parallel spaced relationship to the cam bar. The ends of the cam bar support rollers receivable within the slots of the hook arms. The cam bar is manually shiftable by the handle between a …