The apparatus consists of a horizontal coring
glass tube open at both ends. The heating element is a coil about 40 cm long of
Ni-chrome wire and is wound spirally inside the axis of the glass tube. The
element is easily detachable and is encased in a wooden case lined with felt
and provided with a hinged cover. Terminals are brought at each end of the tube
for the electrical supply. The horizontal tube is connected either by rubber
tube or rubber cork to the inlet and the outlet system, each having a short vertical
extension to accommodate a thermometer. The copper apparatus is mounted on a
polished wooden base board. Supplied with constant level tank fitted on stand
but without thermometer & transformer.
