Crank-axle Bearing

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“The usual form of crank-axle bearing which has inward-cups and is cup-adjusting. The end of the bracket is split and the cup after adjustment is clamped in position by the clamping screw S. The usual mode of fastening the cranks to the axle is by round cotters C with a flat surface at a slight angle to the axis, thus forming a wedge, which is driven in tight. The small end of the cotter projects through the crank, and is screwed and held in place by a nut. The chain-wheel at the crank-axis is usually detachable fastened to the right-hand crank.” — The Encyclopedia Britannica, 1910


The Encyclopedia Britannica, Eleventh Edition (New York: The Encyclopedia Britannica Company, 1910)III:914


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