. Railway mechanical engineer . possible evidencethat steel may contain a much higher sulphur content than isspecified today in open hearth steel, without injuring thequality of the rivet. A Use for Old Phonograph Records.—The wax of oldphonograph records may be used with satisfaction on tracingcloth when erasures are necessary. The wax rubbed overthe erased portion gives the paper a gloss and finish similarto the original surface and prevents the ink spreading inthe lines.—Machinery. ELECTRODE HOLDER EOR ELECTRICWELDING AND CUTTING BY C. W. SCHANE The attached sketch shows a carbon or wire ho
. Railway mechanical engineer . possible evidencethat steel may contain a much higher sulphur content than isspecified today in open hearth steel, without injuring thequality of the rivet. A Use for Old Phonograph Records.—The wax of oldphonograph records may be used with satisfaction on tracingcloth when erasures are necessary. The wax rubbed overthe erased portion gives the paper a gloss and finish similarto the original surface and prevents the ink spreading inthe lines.—Machinery. ELECTRODE HOLDER EOR ELECTRICWELDING AND CUTTING BY C. W. SCHANE The attached sketch shows a carbon or wire holder for usein cutting or welding locomotive fireboxes and general boilerwork, where the electric welder is used. The handle of theholder is placed at an angle of 30 (leg. from the center lineof the holder, so that the wire will be at right angles to theworkman. The wire is held in position by a segmental i amlever, which acts against the underside of a disk head. Thecam and disk are grooved and when the wire i- fastened in. Simple Carbon or Wire Holder for Use in Electric Welding this groove it will not loosen as the tendency to press againstthe metal holds the cam closed. One of these holders has been in continuous service 24hours a day for four months and is still giving excellentresults. In all electrical appliances a good, firm contact willgive the best results, and this holder has fulfilled this require-ment. It does not heat or burn as others which we havetried. INSPECTION OF LOCOMOTIVE SPARKARRESTERS AND ASH PANS* There are being made on some of the roads comparativetests of the different shapes of mesh, also of the differentdesigns of appliances, but on account of the difference ofopinion at this date, we are unable to arrive definitely atwhat design of front end spark arresting arrangement wouldbe best suited to the locomotives, and at the same time, reducethe emission of live or glowing sparks to the minimum. Onsome of the roads different appliances are being tri
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
