Patent ID: 8595879

Claim:
A device for positioning and aligning a beam upon a seat on a support which is an abutment or pier during construction of a bridge, wherein the beam has a longitudinal axis, wherein the device comprises a carriage under the beam and a lift assembly configured to removably receive and support an end of the beam, wherein the carriage is configured for movement along the top of the support in a direction transverse to the longitudinal axis of the beam wherein the lift assembly is carried by the carriage and forms a u-shaped receptacle for receiving and supporting the end of the beam above a seat as the carriage moves along said transverse direction, the lift assembly being operable to move the beam vertically with respect to the carriage and seat, so that when an end of the beam is positioned in the receptacle on the carriage, movement of the carriage transversely positions the beam in a desired final position, and vertical lowering of the lift-assembly deposits the beam upon the seat on the support at said desired final position.