The Locomotive of the Hartford Steam Boiler Inspection and Insurance Company, 1912-1913, Vol. 29 (Classic Reprint)
Author: Hartford Steam Boiler Inspectio Company
Publisher: Forgotten Books
Published: 2018-09-24
Total Pages: 120
ISBN-13: 9781390934854
DOWNLOAD EBOOKExcerpt from The Locomotive of the Hartford Steam Boiler Inspection and Insurance Company, 1912-1913, Vol. 29 The ordinary or customary gage glass is a plain cylindrical tube, ranging for ordinary use from inches to inches in diameter and of a length to suit the varying conditions and types of boilers. These diameters are outside dimensions. They vary slightly, but as the glasses are set in compressible washers such variation is not detrimental. They are made in this country and abroad, but those of Scotch glass are considered the best. The very nature of the material makes it brittle, and aside from its brittleness it possesses other peculiar qualities that when known should cause engineers and firemen to handle these glasses with more than ordinary care. A novice in examining a gage glass will almost immediately pronounce it defective, because Of the fine lines running lengthwise in it; but such lines are usually indicative of good quality and are more pronounced in the Scotch glass than in the American. All glasses are keenly susceptible to surface abrasions, even so minute as to be unobservable. If one receives the slightest scratch inside or out, it should not be used, and in handling or keeping them in stock, no metal of any nature should be allowed to come in contact with them. They are particularly liable to break if iron or steel touches them, and so should never be laid down even temporarily with tools, as is frequently done in preparation for a renewal. It may sometimes be thought desirable to clean an old glass when it has every appearance of being whole and sound. In such an event waste or a cleaning cloth should be used and should be pushed through the bore by means of a wooden stick small enough to pass without force. As a rule, however, the price of gage glasses is too low to bother with the cleaning of old ones, and if one shows any deterioration at its ends, it should be discarded in any case. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
