Publisher's Synopsis
This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1892 edition. Excerpt: ... cause it has the greatest affinit)', or liking, for it; after that it goes for the boiler plates; hut there are no after effects ot this character from a boiler purger, because it is no longer in the boiler when the scale is removed, and if a boiler is thoroughly washed out there is no danger to it from the use of a strong purge. There is very great danger from the presence of heavy lime stone scale, and since nothing but a purger with an acid reaction will remove it, we do not fear to use it ourselves. Some engineers have shown us boilers from which the scale was removed which had the plates badly corroded. This action was attributed to the use of the purge, when it was, in fact, caused by the scale itself. The corrosion was going on all the time underneath the scale, and when it was removed the injury it caused was manifest. Ot two evils we are taught to choose the least, and in this case the use of a strong boiler purger is less than the injury and loss of fuel caused by scale. Get that out first, thoroughly clean the boiler after of all traces of the purge, and there will be no trouble arising from its use. It is understood, of course, that after the use of any boiler purge that the hand-hole plates must be taken off and the boiler cleaned out by hand, washed with a hose, and then filled up and blown out again before steam is raised. There is no middle ground or half-way measures possible in dealing with a dirty steam boiler. Get down to the naked iron and keep it so, inside and out, and the boiler twenty years old will steam as freely as one just out of the shop. Oil In Boilers. Do not upon any account put crude oil or any other kind of grease in a steam boiler. It generally gets in fast enough through the feed water where open...
