Printing : a practical treatise on the art of typography as applied more particularly to the printing of books (1904)
Jacobi, Charles Thomas · London : G. Bell & Sons · leaf 290
o important that the boiler should beexamined occasionally, the flues and tubes being kept quiteclear and clean. Governors and steam-gauges should betested periodically to insure perfect safety. The incrustationwhich forms inside the boiler must be removed from timeto time. There are many adjuncts… … FlG. 141. COMBINED STEAM ENGINE AND BOILER. 260 PRINTING of the boiler-house and engine-room very considerably, andthe other an apparatus for the automatic pumping into theboiler of hot water instead of cold; this in itself is a greatsaving, as the existing quantity of steam in the boiler is…
