. American engineer and railroad journal . rods RR,passing through two light spiral springs SS, which are com-pressed when the dipper is lowered. These springs are set on ayoke Y, fixed to the frame of the tender by means of bolts BB,and serve only as a balance for the weight of the dipper and othermovable parts when the dipper is not in use, so that, if anythingshould give way, or a pin be lost, the dipper would not drop tothe track and possibl3 cause damage. The nuts JVA^at the top of the springs project partly inside ofthe coils and form a definite stop and also a convenient mode ofadjustin
. American engineer and railroad journal . rods RR,passing through two light spiral springs SS, which are com-pressed when the dipper is lowered. These springs are set on ayoke Y, fixed to the frame of the tender by means of bolts BB,and serve only as a balance for the weight of the dipper and othermovable parts when the dipper is not in use, so that, if anythingshould give way, or a pin be lost, the dipper would not drop tothe track and possibl3 cause damage. The nuts JVA^at the top of the springs project partly inside ofthe coils and form a definite stop and also a convenient mode ofadjusting the position of the mouth of the dipper. The hanger H with adjustable set screw Jlf is simply a safe-guard against any springing of the tender frame or arm -4, whichwould result in lowering the mouth of the dipper in the trough,and a possibility of scraping along the bottom. When water is flowing into the tender, it exerts a certain pres-sure on the dipper, which^increases with the speed of the engine. 284 AMERICAN ENGINEER, CAR BUILDER. Fig. 12.—Kiesels Balanced Tender Scoop- Therefore the dipper is pivoted near its center, so that the in the upper half balances that in the lower half. This makesit entirel3- independent of speed. In lowering the dipper the only resistance is that due to thesprings S S. In raising it out of the water the pressure on thetrunnions T holds down the cradle and the dipper moves roundthe trunnions T until the stops X Atouch the arms of the gives enough motion to the dipper to allow the mouth torise clear of the water, consequently no more water rushes inand the rest of the movement takes place easily around thepivot P. Lowerit;gand raising can be easily occoraplished with one handat any speed. The first scoop built was in continual service for eighteenmonths without costing anything for repairs. For the past twoyears the Pennsylvania Railroad Company has been equippingall new tenders with this scoop, and there are now more t
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
