. American stationary engineering; a practical work which begins at the boiler room and takes in the whole power plant. e is applied. The braces should be spacedabout 8 inches apart on the X bar and 7 inches from the edgeof the flange X the bar should be 4 X 4| X iioo and riveted tothe head or flat surface with \^ rivets spaced ^\ inches apart. Hollow Stay Bolts are used in locomotive tire boxes toshow when fracture has occurred by permitting an escape ofsteam or water. The flange of a boiler head -J thick will amply support 6inches from the edge of the flange. A radius of 3 inches is ample fo
. American stationary engineering; a practical work which begins at the boiler room and takes in the whole power plant. e is applied. The braces should be spacedabout 8 inches apart on the X bar and 7 inches from the edgeof the flange X the bar should be 4 X 4| X iioo and riveted tothe head or flat surface with \^ rivets spaced ^\ inches apart. Hollow Stay Bolts are used in locomotive tire boxes toshow when fracture has occurred by permitting an escape ofsteam or water. The flange of a boiler head -J thick will amply support 6inches from the edge of the flange. A radius of 3 inches is ample for bend of flange on the lower braces should be started 6 inches above the top rowof tubes. Braces should be fitted so as to have a straight pull,i. e. parallel with the boiler shell. The heads of the boilershould be perfectly straight before the braces are fitted in brace plates should not be less than 30 inches long and14 inches wide. Braces are best made of 1 inch O iron ofhighest efficacy with tensile strength of not less than 68,000lbs. to the SqUSTP ^rr>.h 104 Maxims and POINTS RELATING TO BOILER BRACES. The riveted stay shown in Fig. 51,consists of a long rivet, passedthrough a thimble or distance pieceof wrought iron pipe placed bet\7eenplates, to be stayed together, andthen riveted over in the usual 51. An ingenious device is in use to show when a bolt has small hole is drilled into the head, extending a little waybeyond the plate, and as experience shows that the fracturenearly always occurs next to the outside plate, that is the endtaken for the bored out head: when the bolt is broken the rushof steam through the small hole shows the danger withoutcausing serious disturbance. Even where the best of iron is used for stay bolts they shouldnever bo exposed to more than cith or luth their breakingstrength. The stays should be well fitted, and each one carefully tight-ened, and, as far as possible each stay in a
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectsteamen, bookyear1917
