Locomotive boiler construction; a practical treatise for boilermakers, boiler users and inspectors .. . Figure 214A cheap mud ring bolt. the grate have been used, most of which are arrangedso that the bolt will pass through the water space frame. Fig. 213 shows one of these bolts. They are turnedout on the screw machine from stock of a diameter ofthe countersunk head and are threaded so as to bescrewed clear through the frame. After being screwedtightly into place they are cut off on the outside andriveted over. A much cheaper style of bolt is represented by This is entered into place
Locomotive boiler construction; a practical treatise for boilermakers, boiler users and inspectors .. . Figure 214A cheap mud ring bolt. the grate have been used, most of which are arrangedso that the bolt will pass through the water space frame. Fig. 213 shows one of these bolts. They are turnedout on the screw machine from stock of a diameter ofthe countersunk head and are threaded so as to bescrewed clear through the frame. After being screwedtightly into place they are cut off on the outside andriveted over. A much cheaper style of bolt is represented by This is entered into place and is headed up on the 232 Fire doors. outside, while the bolt is hot. It is open to the objection,however, of gradually working loose after a load Wshakes and bumps around on it. Fig. 215 illustrates a better construction, but likemost good things is more expensive. This bolt is allmade in the screw machine, except the portion C whichhas a taper thread. These bolts are central and thethreads cut in an engine lathe. It is tapped so as to. The Derry-Collard Co. Figure 215 £A better but more expensive plan. screw in snugly. A is a patch bolt which is screwed intothe frame and riveted over in the same way as the boltsaround the corner of the water space frame. The fire doors of most locomotive boilers are madeof cast iron with deflecting plates on the inside, supportedby studs to prevent undue heating of the fire studs must be countersunk to clear the heads ofthe stay bolts and are chipped to fit snugly against thehead of the boiler. The door is held to the boiler by studs 233 Steam connections. which are tapped into the back head and fit a taper are provided with some style of damper for admit-ting a flow of air and are frequently arranged with ahandle that can drop into several notches to allowthe door to stand open to some extent and thus check thedraft. The latch is placed on the right hand side of thedoor. Steam Connections. - The dome of a locomotive b
Size: 2250px × 1110px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, bookidlocomotivebo, bookyear1912
