Cleaning brush assembly for cleaning cylindrical surfaces

Claim 1

A cylindrical surface-cleaning machine comprising at least two brush assemblies, the said brush assemblies being powered by a planetary chain sprocket mechanism, the said brush assemblies moving in circular direction about the axis center of the said cleaning machine, a first and a second rotatable shaft, the said first and second rotatable shaft being mounted between the interface of a first head ring sprocket mounted on a first head ring and the interface of a second head ring, the said first and second head rings being properly braced and approximately parallel to each other, each of the said head rings being mounted on head ring rollers assembled on a frame, a stationary second sprocket attached to the said frame and a third sprocket mounted on the said first rotatable shaft, the said stationary second sprocket and the said third sprocket being circumscribed by a first continuous chain, a fourth sprocket on the said first rotatable shaft, positioned on the said first rotatable shaft between the said interface of the second head ring and a pair of approximately parallel rocker arm supports rotatably mounted on the said first rotatable shaft, the said rocker arm supports holding a third shaft with a cleaning brush mounted thereon, the said third shaft extending to support a fifth sprocket, the said fifth sprocket and the said fourth sprocket being circumscribed by a second continuous chain drive, a sixth sprocket, the said sixth sprocket being mounted on the first rotatable shaft between the said pair of rocker arm supports and the said interface of the first head ring sprocket, a seventh sprocket mounted on the said second rotating shaft between a second pair of rocker arms mounted on the said second rotating shaft and thE said first head ring sprocket, a third continuous chain drive circumscribing the said sixth and seventh sprockets, an eighth sprocket positioned on the said second rotating shaft between the said second pair of support arms and the said second head ring, a fourth rotatable shaft, the said fourth rotatable shaft being positioned between the extremities of the said second rocker arm supports and extended to support a ninth sprocket, the said eighth and ninth sprockets being circumscribed by a continuous chain drive, the said fourth rotatable shaft supporting a cleaning brush thereon.