Title: Machine for treating hollow bowl-shaped objects

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Abstract: A machine for washing kettles or similar hollow bowl-shaped objects has a housing with an inclined front wall having an opening and a recess surrounding the opening at the outer side of the housing. The opening can be closed by a cover which is pivoted to the housing and has a circumferentially complete marginal portion engaging the wall in the recess around the opening when the cover is moved to closed position. The housing contains rotary brushes which treat the internal and external surfaces of a properly inserted object, and such treatment takes place in the presence of a liquid which is admitted into the housing by one or more pipes whereby some liquid leaks through the opening along the marginal portion of the cover and accumulates in the recess. The wall has a port which returns collected liquid into the housing. A trough is mounted below the recess at the outer side of the wall to intercept liquid which overflows from or bypasses the recess. The housing further contains a double-acting cylinder and piston unit whose piston rod is reciprocable in parallelism with the axes of the brushes and serves to expel a treated object through the opening when the cover is moved to open position.


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