Locomotive boiler construction; a practical treatise for boilermakers, boiler users and inspectors .. . hurry Collard Co. Figure 323A pneumatic holder on. when it is on the floor, which would otherwise have to behand riveted. P is the supply pipe. H is the operatingvalve handle. For driving the rivets in the water space frame, theportable hydraulic machine, Fig. 321, is useful. C is acircular arm which supports the riveting machine andwhich admits of its free movement in any direction. His the handle for operating the main piston. P is thesupply pipe which is arranged with several joints. This
Locomotive boiler construction; a practical treatise for boilermakers, boiler users and inspectors .. . hurry Collard Co. Figure 323A pneumatic holder on. when it is on the floor, which would otherwise have to behand riveted. P is the supply pipe. H is the operatingvalve handle. For driving the rivets in the water space frame, theportable hydraulic machine, Fig. 321, is useful. C is acircular arm which supports the riveting machine andwhich admits of its free movement in any direction. His the handle for operating the main piston. P is thesupply pipe which is arranged with several joints. This 330 A pneumatic piston drill. enables the crane hook to be raised or lowered or shiftedin any other position. For driving rivets with an air riveting hammer, , the barrel B should be arranged for an extra longstroke. For boiler rivets, unlike rivets for structuralsteel work, must not only be headed up but the metal ofthe rivet must be driven tightly into the hole and thehead must be driven down solid. This can only be done. Figure 324A pneumatic piston drill. by heavy blows. The handle H opens and closes thevalve. The old method of holding the rivet will graduallygive way to a much better and a more satisfactorymethod which is to be found in the holder in Fig. air hose is coupled up at B and the valve is air pressure then acts as a spring between the end Rfor the rivet and the end S for a support. This holdsthe rivet in place with a pressure of 1,000 or 1,200 pounds. 33i Layout of riveting plant. Considerable power is required to drive the taperedreamers used for reaming out the rivet holes. On thisaccount the small rotary motors are no longer able todo the work. There are a number of piston drills, , placed upon the market which give an enormoustorque. They are usually arranged in two or three sets90 to 120 degrees apart, the air hose being connected toone of the handles. Fig. 325 shows a general riveting plant. R is theriveting machine. The cra
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Keywords: ., bookcentury1900, bookdecade1910, bookidlocomotivebo, bookyear1912
