Interpreted in the most general sense, these decrees, which enacted that the council of Constance derived its power immediately from Jesus Christ, and that every one, even the pope, was bound to obey it and every legitimately assembled general council in all that concerned faith, reform, union, &c., were tantamount to the overturning of the constitution of the church by establishing the superiority of the council over the pope.
For safety against overturning they considered a factor of 2 sufficient.
With portable cranes means must be provided to ensure the requisite stability against overturning; this is done by weighting the tail of the revolving part with heavy weights, and in steam cranes the FIG.
In the latter case the overturning tendency begins as soon as the load leaves the ground, but ceases as soon as the load again touches the ground and thus relieves the crane of the extra weight, whereas overturning backwards is caused either by the reaction of a chain breaking or by excessive counterweight.
If therefore the outer rail is laid at a level above that of the inner rail at the curve, overturning will be resisted more than would be the case if both rails were in the same horizontal plane, since the tilting of the vehicle due to this " superelevation " diminishes the overturning moment, and also increases the restoring moment, by shortening in the one case and lengthening in the other the lever arms at which the respective forces act.
