Читать книгу The Modern Bicycle and Its Accessories - Julius Wilcox - Страница 16

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The use of external reinforcements is not growing, and as the use of large tubing necessitates the employment of flush or invisible joints, in order to make a neat finish, such joints appear to be more largely in vogue than ever. Even the popular priced models use them largely. Some fear was expressed as to their durability and strength, at the opening of last season, but the makers have now had last year’s experience to guide them, and may be assumed to know how to make them strong, so that no trouble need be apprehended on that score.

External joints are, however, largely used still, as are also lap-brazed joints. These variations may, however, be considered as mere “talking-points,” and as evidences of finish and detail rather than as the distinctive features of the frame. For instance, a maker who used flush joints last year on his chain wheels now produces his chainless wheel with outside joints. Another maker who used lap joints on all his models last year, now makes his latest model with flush joints, and so the variation goes on. These changes back and forth, may be in some measure reckoned among those made for the sake of change.

Sheet metal stampings are used for connections more largely than ever; many of the detailed parts of these are wonderful evidences of the excellence of the art and show the advanced stages of what might be more properly termed drawing, forming, and stamping processes.

CHAINLESS TYPE, 1898 (BEVEL GEAR).