Society of Glass Technology · [Sheffield] · leaf 464
ss: *s \ ww1 v v w v \\ w v wj-^t-nW \\v\ v. \K.^^7\[Z3y ■ST^TTq G? … Fig. 23. tunnel and has two or more dampered connections, e, to the chimney.Hot waste gases can thus be withdrawn as desired along the tunnel,while cold air entering at the exit end is prevented from causinga too sudden drop of temperature. The heating chamber, g, isfired from a combined producer,…
Glass
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
