chute 20 through the recession 22 and directed by gravity into the trough 12 the trough 12 includes an opening 11 traversing or proximate the floor 13 of the trough 12 the opening 11 may extend from runner 20 to runner 20 or it may have a varying shape in addition a supplemental plate not shown may be incorporated to vary the size of the opening 11 similarly the floor 13 adjacent the opening 11 may be positioned at an angle to assist the flow of concrete 6 on to the invert 8 in any case the opening 11 is designed to allow the concrete 6 to pass through the floor 13 to the surface below the apparatus 10 which in operation is the metal pipe 8 a pair of cable connectors 24 are attached to the forward wall 12 f of the trough 12 and they may also be connected to the rearward end of the apparatus 10 such as on the support arms 18 a cable chain rope or similar embodiment may be linked to the connectors 24 to assist the user in moving the apparatus 10 back and forth in a substantially horizontal direction in addition a lift connector 26 is affixed to the chute 18 such that the apparatus 10 is able to be lifted and positioned using this connector 26 the apparatus 10 additionally includes at least one scraping apparatus for controlling the dispersion of the concrete 6 in the metal invert a first scraping apparatus 30 a is attached to the distal end 20 d of the chute 18 the first scraping apparatus 30.