Handy man's workshop and laboratory . Fig. 120 the circle represents asection of a shaft, the center of whichit is desired to find. The corner ofa square is placed on any point of thecircumference. The points A and Bare the intersections of the outer sidesof the square with the a line from A to B. Now shiftthe square a little, as represented bythe dotted square, and with the cor-ner on any other point mark theintersections A and B, then con-nect A and B, and the intersectionof AB and A B will be the re-quired center. It is necessarily thecenter, for it is the intersection of
Handy man's workshop and laboratory . Fig. 120 the circle represents asection of a shaft, the center of whichit is desired to find. The corner ofa square is placed on any point of thecircumference. The points A and Bare the intersections of the outer sidesof the square with the a line from A to B. Now shiftthe square a little, as represented bythe dotted square, and with the cor-ner on any other point mark theintersections A and B, then con-nect A and B, and the intersectionof AB and A B will be the re-quired center. It is necessarily thecenter, for it is the intersection ofthe two diameters.—74 HOW TO SUPPORT A SHAFT WHEN BABBITTING This is a suggestion for the simplification of the babbitting ofcrankshaft boxes, which has been used a number of times withentire satisfaction. Drill two holes about ^4 mcn from the out-side end of the box and in about the position illustrated. Tapthe holes for small screws. Let the shaft rest on the head ofthese screws, which may be adjusted until the shaft is lined Fig. 120—Method of findingcenter of a circle 102 HANDY MAN S WORKSHOP AND LABORATORY After lining the shaft it may be taken out of the box and warmedbefore pouring the babbitt, preventing the metal from being chilled and forming an uneven surface. The shaft may bereplaced while warm and the babbitt poured at once, the screwsinsuring a perfect line-up. The screws may be removed with a
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Keywords: ., book, bookcentury1900, bookdecade1910, booksubjectworkshoprecipes
