for the hinge more particularly the hinge is shown as being comprised of a straight tube or hollow cylindrical member 48 located between the legs of a u shaped bracket the legs supporting the ends of the cylinder the cylinder 48 is rotably iadd rotatably iaddend secured in place between the legs of a bolt 50 extending through the legs and cylinder and a nut 52 threaded on the lower threaded end of the bolt tube 48 and a similar structure 58 are discussed in greater detail below rigid pipe 54 is shown attached to cylinder 48 of hinge 14 by bars 56 and 56 39 fig5 of flat bar stock such that 54 is swingable about the vertical axes of 48 and 50 pipe portion 54 curves downward to a lower end of hinge 14 and is shown serially connected to one end of an elongated rigid horizontally disposed fig1 and 2 pipe or hose 18 hoses 18 and 54 can be a single piece pipe member i e 18 can be provided with a curved portion 54 as opposed to be being two pieces a single pipe member is preferred as it eliminates connecting the two members together and of course the physical connection itself.