Anandakanda 1.26.101

1.26.101

svedayettattalagataṃ ḍolāyantramiti smṛtam /
<31. koṣṭhīyantram>
cullīṃ caturmukhīṃ kṛtvā tatra bhāṇḍaṃ niveśayet //

one should steam it submerged within that liquid; this is known as the swing apparatus (ḍolāyantra).
<31. The Enclosure Apparatus (koṣṭhīyantra)>
Having made a four-mouthed hearth, one should set a jar upon it.