Defacing public buildings and other objects

1838 Journal of the Franklin Institute  
Defaein~ Public Buildings. 41,5 inclined plane, and comprise two cases; the first, that when the power of the engine is continued without abatement, and the second, that when the steam is wholly excluded, and the train is urged in its descent by gravity alone. The author arrives at the conclusion, that in the first of these cases~ when the declivity is one in 139, the velocity, on becoming, uniform, will be double that in a horizontal plane; and that for a declivity of one in 695, the uniform
more » ... 695, the uniform velocity of descent will be one-fifth greater than on the horizontal plane; and this he observes, is perhaps the greatest additional velocity which it would be prudent to admit. A plane of one in 695 is therefore the steepest declivity that ought to be descended wi~h the steam-valve fully open; all planes with a declivity between this and that of one in 139, require to have the admission of steam regulated so as to modify tile speed, and adjust it to considerations of safety; and lastly, all planes of a greater slope than this last, require, in descending them~ the application of the brake. Lond. Mech. Mug.
doi:10.1016/s0016-0032(38)92001-0 fatcat:yccpz3h5lrd7tlf75qxsjbz5ry