Locomotive boiler construction; a practical treatise for boilermakers, boiler users and inspectors .. . the screws engage or disengage asthe case may be. Some precaution must be taken in coupling up thedifferent pressures. If the screw threads are not fullyengaged, the enormous pressure of the piston will eitherbreak the screw or strip the thread in the nut. In orderto get the lowest pressure, the lever L must be unlocked,the piston P and K pushed in and then the lever Llocked. Fig. 319 illustrates another style of cylinder. Thisis known as the flush bottom or Vauclain type. Thedifferent press
Locomotive boiler construction; a practical treatise for boilermakers, boiler users and inspectors .. . the screws engage or disengage asthe case may be. Some precaution must be taken in coupling up thedifferent pressures. If the screw threads are not fullyengaged, the enormous pressure of the piston will eitherbreak the screw or strip the thread in the nut. In orderto get the lowest pressure, the lever L must be unlocked,the piston P and K pushed in and then the lever Llocked. Fig. 319 illustrates another style of cylinder. Thisis known as the flush bottom or Vauclain type. Thedifferent pressures are obtained through a distributingvalve from which pressure is entered into several differ-ent chambers which will give either one of the threepressures. H is the valve handle for operating theriveter. The valve for operating the crane when thecrane is hydraulic is placed nearby, -so that the operatorhas both under perfect control. On account of the ec-centricity of the load, the bolts B stretch and graduallywork loose. They should be looked after occasionally. 326 Portable hydraulic figure 320Portable hydraulic riveter. 327 Portable hydraulic riveter.
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Keywords: ., bookcentury1900, bookdecade1910, bookidlocomotivebo, bookyear1912
