ve the center, through which on a line with the hub, but it was found impossi- the lubricating oil is admitted. It also hasa drip ble to fasten it securely without adding almost as much tubing as was necessary in the main frame, in the bottom, through which this oil may be which, besides the extra… … the frame just over the crank hanger, ing the exhaust-valve and also the ignition in which it would have a solid founda- device. These are inclosed in an oil- tight case.. On the left-hand side is the sprocket which tion comparatively low down and high under the rider. while the pedal chain is…
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