Locomotive boiler construction; a practical treatise for boilermakers, boiler users and inspectors .. . A hand-driven rivet. fill up the rivet holes, one or the other side of these headsis apt to come a little full, and therefore the rivet mustbe chipped off flush. This is usually so noted on thedrawings. Wherever it is possible to drive a rivet by machine,it should be done, but there are cases where it cannot bedone profitably, as for instance on the back head. Thishead is entered into the side and crown sheets, and thenthese rivets and also those in the fire door are handdriven. They are ent
Locomotive boiler construction; a practical treatise for boilermakers, boiler users and inspectors .. . A hand-driven rivet. fill up the rivet holes, one or the other side of these headsis apt to come a little full, and therefore the rivet mustbe chipped off flush. This is usually so noted on thedrawings. Wherever it is possible to drive a rivet by machine,it should be done, but there are cases where it cannot bedone profitably, as for instance on the back head. Thishead is entered into the side and crown sheets, and thenthese rivets and also those in the fire door are handdriven. They are entered into the sheet from the inside, 171 Holding work. and while the rivet is being held at A the head is ham-mered down as seen in Fig. 142. Various Operations on the RivetingMachine. We will now consider the method of hanging aboiler over the riveter stake of a large hydraulic rivetingmachine. A single course of a locomotive boiler is veryreadily picked up and dropped down over a riveter stake,but a large boiler like Fig. 143 is not so easily Holding boiler over riveting stake. On the floor, this boiler rests in the same position as itdoes on the engine. The block C of the hoist is hookedinto the three chain link as indicated. Now it would be 172 Work must be well supported. In the first place the sharp edges at A would cut into thefloor and tear everything as it went along. Secondly,the boiler plate being flexible, the boiler would be apt tofall over on its side and bump into something else; andthirdly, after the boiler had been nearly raised from thefloor, it would roll around and endanger everythingabout it. For this reason a pulley block is attached at B, theboiler is raised off the floor and is thus suspended in the
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Keywords: ., bookcentury1900, bookdecade1910, bookidlocomotivebo, bookyear1912
