Lessons and practical notes on steam, the steam engine, propellers, [etc.] by King W. H

Author:King, W. H
Language: eng
Format: epub, pdf
Tags: Steam, Steam-engines
Publisher: New York, Van Nostrand
Published: 1861-03-25T05:00:00+00:00

V-t PATCHING BOILERS.

old rivets cut out and replaced with new ones, &c. In patching boilers, wherever the defective part can be reached so as to work at it well, it is best to cut it out and rivet a patch on, calking the seams; but as this cannot always be done, the most common practice is to put a patch over the defective part, securing it with bolts and nuts, or tap bolts, and making the joint with stiff putty, composed of white and red lead, and a small quantity of fine iron borings. A piece of sheet lead fitted over the place to be patched, will answer for the pattern to make the patch by, which, however, before the joint is made, should be fitted snugly to its place while hot.

Owing to imperfection in the iron, small cracks are sometimes discovered in the flues or other parts of the boiler, subject to a high temperature. Should these not be more than two or three inches in length, they can be stopped by drilling holes and putting in three or four small rivets, hammering the heads well down so as to cover the crack.

A leaky stay-bolt, or rivet, has, like the toothache, but one sure remedy, and that one is to cut it out and put in a new one.

In cutting out a stay-bolt fitted with a socket, the latter can usually be saved and retained in its place, ready to receive another bolt; but sometimes a screw bolt is cut out which has to be replaced with a socket bolt, and as this may be in such part of the boiler which cannot be reached by the arm, or tongs, a very good plan to get the socket in its place, is to pass a string through both holes and secure the ends, dropping the centre down and hauling it out through a hand hole; cut the string in two, pass the ends through the socket, join them together again, and haul the

Download

Copyright Disclaimer:
This site does not store any files on its server. We only index and link to content provided by other sites. Please contact the content providers to delete copyright contents if any and email us, we'll remove relevant links or contents immediately.