Back brush for use in shower has two hydraulic cylinders operated by water supply which drives brushes and are controlled by valve with slide mounted in cylinder block and operated by flanges at either end

摘要

The back brush for use in the shower has two hydraulic cylinders (3, 4) operated by the water supply which drives the brushes. These are controlled by a valve with a slide (5) mounted in a cylinder block (2) which is operated by flanges (27, 28) at either end.