. Railway age gazette . t. The approximate power ashaper of this kind would require for performing the heaviestclasses of work was determined, then sufficient extra poweradded to provide a safe working margin; consequently, thismachine, when doing the average heavy work, should not beconstantly working up to the limit of its capacity. The conesteps are large in diameter and wide of face, being arrangedto accommodate a 3 in. belt. The countershaft speeds arehigh and the back gear ratios are higher than usual on stand-ard shapers of this size. A range of eight strokes from 6,54 to 90 per minute
. Railway age gazette . t. The approximate power ashaper of this kind would require for performing the heaviestclasses of work was determined, then sufficient extra poweradded to provide a safe working margin; consequently, thismachine, when doing the average heavy work, should not beconstantly working up to the limit of its capacity. The conesteps are large in diameter and wide of face, being arrangedto accommodate a 3 in. belt. The countershaft speeds arehigh and the back gear ratios are higher than usual on stand-ard shapers of this size. A range of eight strokes from 6,54 to 90 per minute hasbeen provided, this range being in geometrical progressionand calculated to give the best results on all classes of was found that a slower speed than 62 is unnecessary anda speed faster than 90 impracticable on account of the excessof vibration caused by the rapid stroke. The length of thestroke may be easily changed at will without stopping themachine. The ram and rocker arm are of an improved clesign which. Trial of the Triplex Locomotive.—The triplex compound forthe Erie was recently tried out on the Baltimore & Ohio. Shaper Designed for Heavy Work provides a rigid construction. The rocker arm is rigidlyconnected to a pivot shaft at the bottom of the column whichsupports all the weight of the arm and other parts, thusrelieving the ram from any dead weight and eliminating unduevibration. The connection between the rocker arm and theram is by means of a double link which is so arranged thatit pulls down on the ram during the cutting stroke, thustending to neutralize the upward thrust of the tool. A re-duction in wear of the ram bearings is effected by relievingthe ram of the weight of the rocker arm. (Jne of the features most essential to the life and accuracyof any shaper is an effective means for taking up the continuous taper gib used on this shaper provides ameans by which a full length bearing can be maintained andthe rate of wear kept down to a min
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroa, bookyear1913
