US Patent 8240726 End effector with multiple pick-up members

An end effector for use with a moving device has a frame and a plurality of operational members mounted for movement on the frame. The effector also has an actuation mechanism directly connected to a first operational member and is operable to move the first operational member from a first position to a second position, and from the second position to the first position. A linking apparatus is provided for linking the first operational member to a second operational member. The actuation mechanism moves the first operational member from the first position to the second position, and results in the second operational member being moved by the linking apparatus from a third position to a fourth position. The operational members can be pick up members for picking up items at one pitch and releasing them at a second pitch.