Locomotive boiler construction; a practical treatise for boilermakers, boiler users and inspectors .. . Figure ic8Dies for welt strips. Bending Belpaire crown sheets. of sheet iron in the center joint, the edges of the weltstrip are bent to suit another radius. Not all of the power bending rolls are capable of. The Derry Collard Co. Figure 109A handy way of using bending rolls. bending a sheet as seen in Fig. 109, but when the sheetsare not so thick and when the rolls are powerful, thecorners of a Belpaire crown sheet can be bent cold by 139 Bending large radius corners. bringing the top roll
Locomotive boiler construction; a practical treatise for boilermakers, boiler users and inspectors .. . Figure ic8Dies for welt strips. Bending Belpaire crown sheets. of sheet iron in the center joint, the edges of the weltstrip are bent to suit another radius. Not all of the power bending rolls are capable of. The Derry Collard Co. Figure 109A handy way of using bending rolls. bending a sheet as seen in Fig. 109, but when the sheetsare not so thick and when the rolls are powerful, thecorners of a Belpaire crown sheet can be bent cold by 139 Bending large radius corners. bringing the top roll down against the bottom rolls andpunching the sheet between them as indicated. B is arough casting with studs S screwed into it. C is a pieceof wrought iron bent around so as to form a clamp. Bythis means almost any radius R, within the limit of themachine, can be obtained. Fig. no shows a very large
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Keywords: ., bookcentury1900, bookdecade1910, bookidlocomotivebo, bookyear1912
