Railway and Locomotive Engineering . .t—fer*lit^ SeclioTt X XSECTION OF TIRE F.\STENING. space between tire and center is filledwith molten cast iron, poured throughthe annular opening left between theinternal flanges of tire and center. Thisforms a series of locking wedges in thespace between flanges; these wedges liepoint to point, their small ends being. Spy^S ^ ^ TtTuil CloserSECTIOX.\L VIEW OF THE McCONWAY WHEEL. separated by the temporary adjustingwedges. These wedges are withdrawnand the cast iron locking wedges aredriven up point to point. This opera-tion closes the space between the p
Railway and Locomotive Engineering . .t—fer*lit^ SeclioTt X XSECTION OF TIRE F.\STENING. space between tire and center is filledwith molten cast iron, poured throughthe annular opening left between theinternal flanges of tire and center. Thisforms a series of locking wedges in thespace between flanges; these wedges liepoint to point, their small ends being. Spy^S ^ ^ TtTuil CloserSECTIOX.\L VIEW OF THE McCONWAY WHEEL. separated by the temporary adjustingwedges. These wedges are withdrawnand the cast iron locking wedges aredriven up point to point. This opera-tion closes the space between the pointsof each pair of permanent lockingwedges and doubles the space betweenthe butts. Tlie enlarged spaces between thebutts have to be filled in order to holdtlie locking wedges in place, and this isaccomplished by the use of what arecalled sprags, or supports, wliich aresteel wedges, and when these are putin place in the inner flanges of the tire,final closers are cast around them, andthe whole is a solid tight fit. In order to take off a worn tire it isonly necessary to cut the tire in ^ccs and the whole falls apart mosteasily. The salvage in the scrap valueof the old tire is more than enough topay for the cost of renewal. One ofthe reasons why this form of wheel con-struction will appeal to mechanical men is that there is not much machinewo
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Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyork, bookyear19
