. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . owly, otherwise damage may be done tothe regulator, which also should be openedslowly until the desired pressure for the miliarity with the apparatus will instinct-ively come, and all feeling of unquiet inthe mind of the operator in regard to theappliance should be eradicated before be-ginning real work, just as a soldier shouldinstinctively know how to handle a riflebefore commencing operations on quick mastery is obtained by con- road work boiler sheet welding is per-haps the mos
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . owly, otherwise damage may be done tothe regulator, which also should be openedslowly until the desired pressure for the miliarity with the apparatus will instinct-ively come, and all feeling of unquiet inthe mind of the operator in regard to theappliance should be eradicated before be-ginning real work, just as a soldier shouldinstinctively know how to handle a riflebefore commencing operations on quick mastery is obtained by con- road work boiler sheet welding is per-haps the most difficult of accomplishment,and should never be attempted by a be-ginner. Like all other occupations in-volving skill, followed by tests fromwhich there is no escaping, much dependson beginning right. The natural bent isto fall into error, and to err is human,and it is also a fact that apparently in- fining the initial efforts on one kind of significant trifles make perfection, but weld, on one particular thickness ofmetal. Variety is confusing at first, asthe readjustments are as delicately re-. LARGE STYLE WELDING TORCH. thickness of metal as shown in the tablesis obtained. The working pressure shouldbe advanced on the indicator from zero tothe point required, instead of beingturned on at a higher pressure and re-duced. When the acetylene cock in thetorch is opened, of course the gas shouldbe immediately lighted, and the regulatoradjusted so that there is a reasonably perfection itself is not a trifle, but a sureproof of the presence of the hand of amaster. In regard to the added material inwelding, if the metal is 1/16-inch or lessin thickness, no additional metal is neces-sary. All that is required is to describesmall circles along the crack, the metalitself will flow together in a fused mass,but material thicker requires the use ofwelding rods. These rods or wires areof Norway iron in nearly all cases wheresteel is welded. The purity of this gradeof iron makes a soft wel
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