A supplement to Ures Dictionary of Arts, Manufactures, and Mines, : containing a clear exposition of their principles and practice. . 1825, when blocks of caoutchouc were proposed to beused, having dividing plates of iron between each series; but little seems to have beendone towards any practical application at that time : later in 1844, (see hst,) Melville pro-posed to use spheres of caoutchouc, enclosing air, and separated by disks of wood ormetal, the whole being enclosed in iron cases, and used for buffers and bearing springsfor railway carriages. In 1845, (see list,) Walker and Hills pro
A supplement to Ures Dictionary of Arts, Manufactures, and Mines, : containing a clear exposition of their principles and practice. . 1825, when blocks of caoutchouc were proposed to beused, having dividing plates of iron between each series; but little seems to have beendone towards any practical application at that time : later in 1844, (see hst,) Melville pro-posed to use spheres of caoutchouc, enclosing air, and separated by disks of wood ormetal, the whole being enclosed in iron cases, and used for buffers and bearing springsfor railway carriages. In 1845, (see list,) Walker and Hills proposed to use bags ofcaoutchouc enclosing air, and contained in cases of iron, for use as buffer springs. The next improvement is contained in Fullers patent of 1845, which consists in theuse of cylindrical rings of vulcanized Indian-rubber, ia thicknesses varying from -J to 3inches, and with diameter of ring suitable to the power of spring required; between eacliof these cylindrical rings he places a thin iron plate, through a hole in the centre ofwhich passes a guide rod. Mg. 141 shows Fullers spring in section and plan. These. ^^- 141 m xd
Size: 1184px × 2110px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1860, bookpublishernewyo, bookyear1864
