Scientific American Supplement, No. 832, December 12, 1891 by Various
page 62 of 147 (42%)
page 62 of 147 (42%)
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eccentric rod on each side to two on each side, connecting on to
the same eccentric wheel, and the lifting rod, in pulling back, lifted the forward gear hook off the rocker arm, and the back motion hook then connecting on the rocker arm reversed the engine. Side rods were never used. Driver spring was changed from a bearing under the pedestal boxes to a point over the boxes. The pilot was attached in this manner: Right forward wheel being loose, forward axle extended eight inches beyond box on each side; to this was attached the beam of the pilot, having play of about one inch between box and pedestal plate to act while going around curves. The weight of forward part of engine rested upon a cross brace of the two-wheel pilot, which took bearing by a screw pin surrounded by a spring, by turning which pin the weight on the drivers could be adjusted. A brace used as a hand rail was added on top of the frame, bracing frame and acting as a guide to the driving springs. Water-cocks changed from right to left side of the boiler. Bell, whistle and headlight were added. Balance safety valve scale was changed forward to a point over barrel of boiler, the secret valve being over the new dome.] |
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