the apparatus cleaning by using scrapers, chains, grains of shot, sand or other abrasive means (abrasive blasting in general B24C)

Full Title

Cleaning hollow articles by methods or apparatus specially adapted thereto > Cleaning containers, e.g. tanks > by using apparatus into or on to which containers, e.g. bottles, jars, cans are brought > the apparatus cleaning by using scrapers, chains, grains of shot, sand or other abrasive means (abrasive blasting in general B24C)