. Locomotive engineering : a practical journal of railway motive power and rolling stock . ription of this wonder-ful engine are as ignorant of the principlesof the steam engine as a Hottentot, Lost=Motion Adjuster for ValveSetting. Any mechanic who has had experiencein locomotive valve setting, knows that itis quite unsafe to bet on getting valvessquare on a cold engine, and nine out often are neither satisfied nor successful untilthey run em over with steam on. Waiting for a favorable opportunity to h hold the front of machine for the is plain that by moving the lever oneway or the o
. Locomotive engineering : a practical journal of railway motive power and rolling stock . ription of this wonder-ful engine are as ignorant of the principlesof the steam engine as a Hottentot, Lost=Motion Adjuster for ValveSetting. Any mechanic who has had experiencein locomotive valve setting, knows that itis quite unsafe to bet on getting valvessquare on a cold engine, and nine out often are neither satisfied nor successful untilthey run em over with steam on. Waiting for a favorable opportunity to h hold the front of machine for the is plain that by moving the lever oneway or the other, the valve stem cannotbe moved without compressing one of thesprings, and this takes up any lost motionjust the as would a load on thevalve. When the stem is coming out of the chestthe spring is set to retard it, and all tlielost motion is taken up clear back to theeccentric. When its motion is reversedthe lever is thrown over and the lost mo-tion taken up in the same way. Valvesset under these conditions are bound to besquare, if they can be male square underanv use st^ara, ani then chasing the enginearound the yard, wastes much time andpatience, but before valves are square,that lost motion must be accounted for andtaken care of. Our engraving shows a machine for tak-ing up the lost motion—just as it is whenengine is under steam. Valves can be setwith this device on a cold engine, or on onenearly worn out, with no fears for theresults. It is the invention of 1. , of the Minneapolis & St. Louisroad, and is being placed on the marketby the Q. & C. Co., of Chicago. What may be termed the frame of themachine is a pipe with a ribbed sleevesliding loose on it, and each side of thissleeve a strong coiled spring, both springsbeing held at the outer ends by one yoke ;if this yoke is moved one way it causesone spring to push against the sleeve inone direction, and if moved the other wayit causes the other spring to push thesleeve in the opposite dire
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroa, bookyear1892
