. Canadian transportation & distribution management. Fis 5.— Practice in Expanding Tubes. blow of the hammer on the head causes asmall amount of the metal to flow up thishole, forming a small tit that automaticallycentres the snap on the rivet, a good rivetresulting. Hand operated flue expanders, as almostuniversally used, are an ever fruitful causeof trouble. In the first place, they are fartoo slow in action, and the very fact thattheir action is a rotary one makes theiruse rather difficult in cramped places, such inner beading, the reinforcing piece beingbeaded over in its place, all
. Canadian transportation & distribution management. Fis 5.— Practice in Expanding Tubes. blow of the hammer on the head causes asmall amount of the metal to flow up thishole, forming a small tit that automaticallycentres the snap on the rivet, a good rivetresulting. Hand operated flue expanders, as almostuniversally used, are an ever fruitful causeof trouble. In the first place, they are fartoo slow in action, and the very fact thattheir action is a rotary one makes theiruse rather difficult in cramped places, such inner beading, the reinforcing piece beingbeaded over in its place, all as in fig. 4. The method of safe ending tubes is shownin fig. 7. The practice in this re-spect resembles that of many other safe end is flared, and slipped over theheated end of the tube, neither part beingbevelled, a practice that is used with aconsiderable degree of success in some heating both parts, they are weldedtogether in a rotary swedging machine, pro-. Fig. 7.— Practice of Safe Ending Tubes. as the side tubes in the fire or practice is shown in fig. 6. Anexpanding member, made up of six seg-mental pieces of the form indicated, andheld together by a stiff rubber band, areforced out against the tube wall by atapered pin driven in toy an air annular recess around the expander,with rims around each side of the recess,forces the tube out in rings at each faceof t>e tube plate. Between the tube and ducing a joint like that shown in the lowerpart of the illustration. All the weld seamis on the inner surface. The views that illustrate this article arefrom a set of photographs made up by mechanical department for distri-bution to all the locomotive houses on thesystem. It is the intention to make themall up on a large card, which will be framedand hung up in a conspicuous place in thelocomotive house, so that all will know the proper use of the tools, resulting in a moreuniform method of ha
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Keywords: ., bookcentury1900, bookdecade1910, bookpublisherdonmi, bookyear1913
