Shovel with passive tilt control

A dipper assembly for a mining shovel, the mining shovel including a boom, a member movable relative to the boom, and a hoist rope passing over an end of the boom, the dipper assembly comprising:

• a dipper adapted to be coupled to an end of the member, the dipper including a digging edge;
• a bail including a first end pivotably coupled to the dipper and a second end adapted to be coupled to the hoist rope passing over the end of the boom;
• a pitch brace including a first end pivotably coupled to the bail and a second end adapted to be pivotably coupled to the member, and
• wherein the first end of the pitch brace is pivotably coupled to the bail between the first end of the bail and the second end of the bail.

A mining shovel comprising:

• a boom including an end and a hoist rope extending over the end;
• a member including a first end and a second end, the member being movable relative to the boom;
• a dipper body pivotably coupled to the second end of the member at a first joint, the dipper body including a digging edge, the dipper body positioned at an angle relative to the member;
• a bail assembly including a first end pivotably coupled to the dipper body at a second joint and a second end coupled to the hoist rope passing over the boom;
• and
• a mechanism for changing the angle of the dipper body relative to the member during a digging operation, the mechanism including
• a first link defined by a portion of the dipper extending between the first joint and the second joint,
• a second link pivotably coupled to the bail assembly at a third joint and pivotably coupled to the member at a fourth joint,
• a third link defined by a portion of the bail assembly extending between the second joint and the third joint, and
• a fourth link defined by a portion of the member extending between the fourth joint and the first joint.