. Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics . eel, are arranged in different ways—a preferred form of frame in mens bicycles being that of an elongated diamond, the sharperapexes being at the rear axle and front fork, and the other angles occurring at the pedal-shaftand the point where the saddle is supported, a cross-bar lying between the two latter. Thefront fork is rigid, and made with a curve and rake rearward from the front-wheel axle,so that the handle-ba
. Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics . eel, are arranged in different ways—a preferred form of frame in mens bicycles being that of an elongated diamond, the sharperapexes being at the rear axle and front fork, and the other angles occurring at the pedal-shaftand the point where the saddle is supported, a cross-bar lying between the two latter. Thefront fork is rigid, and made with a curve and rake rearward from the front-wheel axle,so that the handle-bar may be within convenient reach of the riders hands, and the saddlelies just over the front half of the rear or driving wheel. The LndtW Bicycle (see Fig. 5) is similar to the above in all respects, save that the back-bone of the frame extends downward from the head of the fork close to the rear part of thefront wheel, and then curves underneath to a junction with the pedal-axle. Skirt-guards areprovided over the moving parts adjacent to the riders seat. For ladies use, the presentstandard diameter of wheel is 28 in., geared to 50^ in. The brake is of the plunger type in. Fig. 5.—Ladies safety bicycle. both machines, and is applied to tlie driving-wheel, and the handle-bar is a single tube ofseamless steel tapered at each end and curved backward, to bring the grasping pieces, whichare of rubber, within easy reach of the riders hands. The spokes preferred in these standard safety machines are of the double-tangent type. As a result of continued and practical investigation by experts in this country and Eng-land, an efficient anti-vibration device, in addition to the cushioned tires and hubs, has beendeemed an essential part of a high-grade modern bicycle ; a yielding spring-fork, of which thatnamed the Victor is a leading type, has been largely adopted. It is of especial value for rough-road riding, where obstacles are frequently met with, andgreat strain consequently broug
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Keywords: ., bookcentury1800, bookdecade189, booksubjectmechanicalengineering
