History of Technology in India, Vol. I: From Antiquity to c. 1200 A.D. v1.c13.s2.t4.43

v1.c13.s2.t4.43

(ii) The iron making furnaces and its dressing: Variety of small and large furnaces have been described by Joshi (1970), Banerjee (1965), Krishnan(1955), Prakash(1983), Chatterjee et al. (1973) and Ghosh (1964) and many others, which have been in operation during the 17th and the 18th century in various parts of the country. These furnaces were called Bhaṭṭi, Kothi or Koṣṭhi and they were made from locally available clay, and at many places internally lined with natural china clay or a refractory mixture generally used for crucible manufacture. More details [Figure: CIRCULAR CLAY BRICKS BLOOM CHARCOAL TUYERE TAPPED SLAG CINDER Fig. 19. Iron smelting furnace found at Naikund (700 B.C.)]