Ground deposition machine for sloping surfaces

A spray head arrangement, suitable for use in a ground deposition apparatus, wherein in operation the spray head arrangement is moved linearly along a horizontal mounting rail, the spray head arrangement comprising

• a vertical mounting rail;
• a second support arm arranged orthogonally to the vertical mounting rail;
• plurality of nozzles mounted to the second support arm and operable to deposit a material on a ground surface;
• and
• a mounting carriage, wherein the mounting carriage comprises:
• four guide wheels on a first side of the mounting carriage, the four guide wheels on the first side of the mounting carriage comprising two guide wheels configured to engage a first side of a track portion of the vertical mounting rail and two guide wheels configured to engage with a second side of the track portion of the vertical mounting rail opposite the first side of the track portion of the vertical mounting rail;
• and
• four guide wheels on a second side of the mounting carriage opposite the first side of the mounting carriage, the four guide wheels on the second side of the mounting carriage comprising two guide wheels configured in operation to engage with a first side of a track portion of the horizontal mounting rail and two guide wheels configured to engage with a second side of the track portion of the horizontal mounting rail opposite the first side of the track portion of the horizontal mounting rail.