Mechanism for discharging concrete

Claim 1

A SELF-PROPELLED CONCRETE MIXER, COMPRISING A ROTATABLE DRUM, A DISCHARGE HOPPER FOR RECEIVING AN OUTFLOW OF THE CONCRETE RECEIVED IN SAID DRUM, BEARING MEANS HAVING A CENTRAL OPENING PROVIDING A DISCHARGE OUTLET FOR SAID DISCHARGE HOPPER, ROTATABLE MEANS SUPPORTED ON SAID BEARING MEANS, AN ARTICULATED SUPPORT, A CHUTE SUPPORTED ON SAID ARTICULATED SUPPORT FOR ANGULAR MOVEMENT IN A VERTICAL PLANE WHEREBY THE END OF SAID CHUTE IS RAISED AND LOWERED ON SAID ARTICULATED SUPPORT, OPERATOR-CONTROLLED FIRST ACTUATOR MEANS OPERATIVELY CONNECTED WITH SAID CHUTE TO EFFECT MOVEMENT IN A RAISING AND LOWERING DIRECTION ON ITS ASSOICATED ARTICULATED SUPPORT, SECOND ACTUATOR MEANS OPERATIVELY COMBINED WITH SAID ROTATABLE MEANS TO EFFECT OPERATION THEREOF, SAID SECOND ACTUATOR MEANS INCLUDING A POWER CYLINDER, ACTUABLE PISTON MEANS WITHIN SAID POWER CYLINDER AND HAVING A PULLEY WHEEL RESPECTIVELY DISPOSED AT EACH END OF SAID POWER CYLINDER, AN ELONGATED FLEXIBLE FORCE TRANSMITTING MEANS TO EFFECT OPERATION OF SAID ROTATABLE MEANS, EACH OF SAID PULLEYS HAVING AN OPERATIVE CONNECTION WITH SAID FLEXIBLE FORCE TRANSMITTING MEANS TO COMMUNICATE ACTUATING TORQUE ON SAID ROTATABLE MEANS RESPONSIVE TO MOVEMENT OF SAID PISTON MEANS, AND AN OPERATOR-CONTROLLED VALVE MEANS FOR OPERATING SAID SECOND ACTUATOR MEANS WHEREBY SAID CHUTE IS MOVABLE ARCUATELY IN A HORIZONTAL PLANE TO DIRECT THE DISCHARGE END OF SAID CHUTE.