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A supplement to Ures Dictionary of Arts, Manufactures, and Mines, : containing a clear exposition of their principles and practice. . ^^- 141 m xd. springs have been extensively used as buffer, bearing, and draw springs for railway usesalone and in combination with Be Bergues improvements: some defects have been foundin practice in this form, to obviate which, the ingenuity of later inventors has been ex-ercised ; the defects alluded to are, the tendency to swell out at the central unsupportedpart of the ring, thus from the undue tension rendering it liable to break under suddenconcussion, and
A supplement to Ures Dictionary of Arts, Manufactures, and Mines, : containing a clear exposition of their principles and practice. . ^^- 141 m xd. springs have been extensively used as buffer, bearing, and draw springs for railway usesalone and in combination with Be Bergues improvements: some defects have been foundin practice in this form, to obviate which, the ingenuity of later inventors has been ex-ercised ; the defects alluded to are, the tendency to swell out at the central unsupportedpart of the ring, thus from the undue tension rendering it liable to break under suddenconcussion, and occasioning complete disintegration of the material where not obviate these defects, George Spencer (see Hst, Nos. 12,18) proposed to mould thecaoutchouc at once in the form it assumes under pressure, and then to place a confiningring of iron on the larger diameter. (See Jig. 142.) By this ingenious plan, the caout- 142 a -- — ^
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Keywords: ., bookcentury1800, bookdecade1860, bookpublishernewyo, bookyear1864