Drum type sewer cleaner

In a sewer cleaning machine comprising a frame, a drum mounted on said frame for rotation about a generally horizontal axis, means for rotating said drum, a length of flexible cable in said drum, and a cable guide mounted coaxially with said drum for rotation with respect to said frame and with respect to said drum, said cable exiting said drum through a forward end of said cable guide, the improvement wherein said drum comprises a sheet metal housing completely enclosing said cable within said drum, said housing including a rearwardly overhanging cable-containing part defining a generally horizontal internal drum surface, and wherein said means for rotating said drum comprises a motor, said motor including a drive shaft and drive means on said drive shaft for drivingly engaging said internal drum surface, and further comprising shroud means connected to said frame for covering said motor and said drum, said shroud means comprising a first semi-cylindrical shroud part above said drum and a second pivotally mounted shroud part in front of said drum.

In a sewer cleaning machine comprising a frame, a drum mounted on said frame for rotation about a generally horizontal axis, means for rotating said drum, a length of flexible cable in said drum, and a cable guide mounted coaxially with said drum for rotation with respect to said frame and with respect to said drum, said cable exiting said drum through a forward end of said cable guide, the improvement wherein said drum comprises a rearwardly overhanging part defining a generally horizontal internal annular drive surface, and wherein said means for rotating said drum comprises a motor, said motor including a drive shaft and drive means on said drive shaft for drivingly engaging said drive surface, said machine further comprising shroud means connected to said frame for covering said motor and said drum, said shroud means comprising a first generally semi-cylindrical shroud part above said drum and a second pivotally-mounted shroud part below and in front of said drum.

In a sewer cleaning machine comprising a frame, a drum mounted on said frame for rotation about a generally horizontal axis, means for rotating said drum, a length of flexible cable in said drum, and a cable guide mounted coaxially with said drum for rotation with respect to said frame and with respect to said drum, said cable exiting said drum through a forward end of said cable guide, the improvement wherein said drum comprises a rearwardly overhanging part defining a generally horizontal internal annular drive surface, and wherein said means for rotating said drum comprises drive means for drivingly engaging said drive surface, said machine further comprising drum tilting means for tilting said drum and said cable guide forward with respect to said frame, said drum tilting means comprising a forward support structure, said forward support structure comprising forward bearing means for rotationally supporting said forward end of said cable guide and pivot means below said forward bearing means for pivotally mounting said forward support structure to said frame.

In a sewer cleaning machine comprising a frame, a drum mounted on said frame for rotation about a generally horizontal axis, means for rotating said drum, a length of flexible cable in said drum, and a cable guide mounted coaxially with said drum for rotation with respect to said frame and with respect to said drum, said cable exiting said drum through a forward end of said cable guide, the improvement wherein said drum comprises a rearwardly overhanging part defining a generally horizontal internal annular drive surface, and wherein said means for rotating said drum comprises a motor, said motor including a drive shaft and drive means on said drive shaft for drivingly engaging said drive surface, and spring means for biasing said drive means into engagement with said drive surface.