Category: Engineering & Technology
In compiling a treatise on the subject of lead burning too much stress cannot be laid upon the fact that the greatest care must be taken to observe the smallest details and to follow carefully every suggestion in regard to safety. I am aware of the responsibility resting upon...
There are two kinds of seams proper, viz.: The butt seam and the lap seam. The butt seam is used principally for joining horizontal waste pipes and in lengthening traps, or for...
13. CHAPTER XIII.The common blow pipe is a simple little tool that is used in connection with an alcohol torch for soldering the finest and most delicate pieces of jewelry, and constitutes the s...
5. CHAPTER V.In towns supplied with illuminating gas it is a comparatively simple operation to burn the lead lining for the generator, but for the convenience of those who cannot obtain gas...
4. CHAPTER IV.The construction of the generator is the first step in the mechanical part of the business, and to simplify this a complete set of reference drawings has been constructed and is...
11. CHAPTER XI.It is not my intention to give an elaborate description of how acids are made or to attempt to describe all of the different fittings employed in that work, because while all pl...
7. CHAPTER VII.After making sure that the generator is perfectly tight we will proceed to charge it. After removing the 4-inch charging screw take 15 pounds of commercial spelter, which has be...
6. CHAPTER VI.We now assume that the generator is charged and the rest of the apparatus is finished and ready for use, so we will proceed to connect it up ready for a trial.
12. CHAPTER XII.The articles on the universal method of lead burning having been completed, I desire to call attention to a new method and a new generator recently patented and put on the marke...
8. CHAPTER VIII.Before attempting to light the gas the operator must be sure that all the air is exhausted from the tubes. Otherwise the flame will go back and explode in the tubes or fire trap...
3. CHAPTER III.This element was discovered by Cavendish in 1766, and was called by him inflammable air. The name hydrogen is derived from two Greek words, one signifying “water” and the other...
10. CHAPTER X.Pipes that are placed in a horizontal position are usually butt seamed, as a stronger seam can be made in that manner. This form of seam is also used in lengthening traps, bends...
1. CHAPTER I.In compiling a treatise on the subject of lead burning too much stress cannot be laid upon the fact that the greatest care must be taken to observe the smallest details and to f...
2. CHAPTER II.The apparatus used for lead burning is illustrated in Fig. 1. It consists of a gas generator, A; an air holder, B, and pump, C; mixing fork, _e_, and necessary cocks, _f_ and _g...