. The Locomotive. ented. As theflywheel of the engine carriedthe rest of the engine mechan-ism through several revolu-tions after the accident, thisjamming of the exhaust-valveresulted in the breaking of theexhaust-valve-stem-arm. An investigation was madeto determine the cause of theaccident and it was found thatthe gib which, with a cotterkey, held the piston-rod in thecross head, had broken and,as this permitted the cotter orkey to drop out, the piston-rod and the crosshead had become sepa-rated. Apparently this occurred shortly after the engine had passedthe crank-end center so that the st
. The Locomotive. ented. As theflywheel of the engine carriedthe rest of the engine mechan-ism through several revolu-tions after the accident, thisjamming of the exhaust-valveresulted in the breaking of theexhaust-valve-stem-arm. An investigation was madeto determine the cause of theaccident and it was found thatthe gib which, with a cotterkey, held the piston-rod in thecross head, had broken and,as this permitted the cotter orkey to drop out, the piston-rod and the crosshead had become sepa-rated. Apparently this occurred shortly after the engine had passedthe crank-end center so that the steam admitted to the cylinderat that time carried the piston and rod with terrific force toward theopposite end of the cylinder, breaking out the cylinder-head and caus-ing the other damage that has been mentioned. What caused the gibto break has not been fully determined. The accident serves to illus-trate however, the danger that is attendant upon the use of an enginehowever satisfactory its operation may View From Crank End. Water Gauges and Their Care. THE water gauge is a most essential part of the equipment of aboiler and, if properly installed and cared for, is as reliable asany other piece of apparatus about a power plant. Lack of care,howrever, may make it the most treacherous. We desire, therefore, topoint out in this article some of the attention that this part of theboiler equipment requires. THE LOCOMOTIVE [January, The method of piping thewater column, gauge glass andtry cocks to a boiler, as ap-proved by this company, isillustrated in Fig. i. The connections betweenthe boiler and the water gaugeshotjld at all times be keptfree and open. Upon comingon duty and several timeswhile on duty the firemanshould blow down the watergauge piping to preclude anypossibility of a stoppage inthe pipe such as might becaused by scale entering itfrom the boiler. To do thisthe cocks or valves at the top( Xo. 2) and the bottom ( ) of the gauge glass areclosed and the mud
Size: 1614px × 1549px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorhartfordsteamboilerin, bookcentury1800, bookdecade1860
