Abstract: A jack apparatus for lifting an object along a substantially vertical path includes a base structure including a guide structure and an axle, a first member having a first end and a second end and a midsection, and constrained at the first end to slide along the guide structure and adapted at the second end to engage the object, the first member having a certain length, a second member pivotally connected to the midsection of the first member and extending a distance substantially half the certain length to pivotally connect to the axle, a drive mechanism for propelling the first end of the first member along the guide mechanism toward the axle to swing the first member progressively toward a vertical position, thereby lifting the object engaged at the second end of the first member. The drive mechanism is preferably a hydraulic cylinder.