Transcription of MODEL BOILERS - Plans for Everything
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MODEL BOILERS - Plans for Everything
MODEL BOILERS A booklet devoted to the construction ofmodel BOILERS may well open with a fewcautionary words, as the dangers connectedwith steam-raisers are very real; and thoughmodel-boiler explosions are fortunately rare, ifthey do occur they may be extremelydisastrous. Therefore the following warnings:(1.) Do not use tins or thin sheet ironfor BOILERS . One cannot tell how farinternal corrosion has gone. The scalingof 1/100 inch of metal off a "tin" isobviously vastly more serious than thesame diminution in the thickness of,say, a 1/4-inch plate. Brass and copperare the metals to employ, as they donot deteriorate at all provided a properwater supply be maintained. (2.) If in doubt, make the boiler muchmore solid than is needed, rather thanrun any risks.
Joints not exposed directly to the furnace flames may be soldered with a solder melting not below 350 degrees Fahrenheit. Surfaces to be riveted together should be "tinned" before riveting, to ensure the solder getting a good hold afterwards. The solder should be sweated right through the joint with a blow-lamp to make a satisfactory job. Page 1
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