The Civil engineer and architect's journal, scientific and railway gazette . by anotlier modifi-cation of this arrangement, a metal ring is introduced in contactwith the axle, using the contractile force of the india-rubbershield to keep the i-ing in close contact with the polished axle-bo.\es should be filled with a saponaceous grease in asemi-fluid state, so that it may flow towards the shield, and lubri-cate it without delay. The top of the axle is of a circular form,with a lid furnished with a small air-hole screwed thereon, andeffectually closing the box. The grease is introduc
The Civil engineer and architect's journal, scientific and railway gazette . by anotlier modifi-cation of this arrangement, a metal ring is introduced in contactwith the axle, using the contractile force of the india-rubbershield to keep the i-ing in close contact with the polished axle-bo.\es should be filled with a saponaceous grease in asemi-fluid state, so that it may flow towards the shield, and lubri-cate it without delay. The top of the axle is of a circular form,with a lid furnished with a small air-hole screwed thereon, andeffectually closing the box. The grease is introduced through theaperture whenever required. MANUFACTURE OF WHEELS. John Ashbury, of Openshaw, near Manchester, for ^certainim-provements in the construction and manufacture of wheels for use uponrailways and common roads, and in the methods of preparing andconstructing the tyres used thereon.—Granted March, 11 ; EnrolledSeptember 11, 1848. Fig. 1, in the annexed woodcuts is a side elevation and a lon-gitudinal section, showing the first part of the patentees Fig. 1. Fig. 2. The nave a is made of cast-iron, and presents the same appear-ance on each side of the wheel, having six projecting-arms a, a,with sufficient space between them transversely to admit of theinsertion of the wooden pieces b, b. They are also divided in thesame direction by the radial plates a-, a-, wliile the circumferen-tial portions «?, n, are of equal breadth and extend transverselybetween them in the recess thus formed. On each side of theradial plates a , a-, are placed one of the wooden pieces b, b, oneside of each of wliicli is prepared so as to abut upon the radialplates a, a, and being furnished with a notch, by which the pro-jections of the circumferential plates a-, a\ are cleared, they im-pinge upon each other radially, till they the periphery of thewheel; all lateral action being prevented by dowels, inserted be-tween them. The opposite sides of the pieces 6, b, diverge sligh
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Keywords: ., boo, bookcentury1800, booksubjectarchitecture, booksubjectscience
