. Spons' dictionary of engineering, civil, mechanical, military, and naval; with technical terms in French, German, Italian, and Spanish . nger is shown in which the same self-adjusting deviceis employed, but as only two set screws instead of four are used, the boxes are not adjustable. Whenthese hangers are in use it has been the practice to make the journals from 3J to 4 diameters inlength, to chamber out the boxes, and line tliem with anti-friction metal. At Figs. 3868, 3869, a self-lubricating journal-box, applicable to the same hanger, is shown,in which it is proposed to return the oil fr
. Spons' dictionary of engineering, civil, mechanical, military, and naval; with technical terms in French, German, Italian, and Spanish . nger is shown in which the same self-adjusting deviceis employed, but as only two set screws instead of four are used, the boxes are not adjustable. Whenthese hangers are in use it has been the practice to make the journals from 3J to 4 diameters inlength, to chamber out the boxes, and line tliem with anti-friction metal. At Figs. 3868, 3869, a self-lubricating journal-box, applicable to the same hanger, is shown,in which it is proposed to return the oil from the drip-cup to the shaft by means of the two looserings, A A. Figs. 3870, 3871, show a line-shaft coupling, which, with the exception that the cones areliable to stick fast, may well be pronounced faultless. This method was first introduced by HANGEE. 1837 C. F. T. Young. A device, whereby it is proposed to overcome this one difficulty, is shown in , and consists simply in having a tapped hole through the shell of the coupling, into which aconical-pointed set screw may be inserted for forcing the cones out of their Fig. 3872 is of a method of securing pulleys to shafting by means of a split cone and one ormore bolts. The advantages of this arrangement are, that the pulleys can be set at any point in 1838 HAEBOUR the shaft without disfiguring it with key-ways or set-screw marks, that they will run true whenset, and that they can be changed to diíFerent sized shafts by simply changing the cones. C. F. T. Young gives credit to A. Shanks as the original inventor of the system of hangersillustrated in Figs. 3873, 3874. The hanger employed by Shanks in 1848 is shown in Figs. 3873,3874 ; a is the hanger ; b is the portion carrying the bearing for the shaft ; c, the bearing ; d d, the
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Keywords: ., bookcentury1800, bookdecade1870, bookidsp, booksubjectengineering
