. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . msattached to it, one above and the otherbelow, and as the driving axle was backof the fire box, these arms were pro-longed backward under the foot board,with a hook on the inner side of theend of each. The rock shaft had armsabove and below its axis, and the hooksof the two rods of each eccentric weremoved by hand levers so as to engagewith either arm, thus producing for-ward or backward motion. This motionwas adhered to for four or five years. The first change made by Mr. Bald-win in his va
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . msattached to it, one above and the otherbelow, and as the driving axle was backof the fire box, these arms were pro-longed backward under the foot board,with a hook on the inner side of theend of each. The rock shaft had armsabove and below its axis, and the hooksof the two rods of each eccentric weremoved by hand levers so as to engagewith either arm, thus producing for-ward or backward motion. This motionwas adhered to for four or five years. The first change made by Mr. Bald-win in his valve motion was to adoptthe double eccentrics with a single flathook. In 1840 he built some locomo-tives for .Austria with a sort of linkmotion, being before that motion wasreinvented by Williams, of the Stephen-son works. It did not indicate, how-ever, that he had come to favor a linkmotion. In 1845 he introduced whatwas known as the half stroke this device the steam chest was sep-arated by a horizontal plate with anupper and lower compartment. In theupper compartment a valve, worked by. BALDWINS VARIABLE CUT-OFF MOTION. a separate eccentric and having a singleopening, admitted steam through a portin this plate to the lower steam cham-ber. The valve rod of the upper valveterminated in a hook which engagedwith the upper arm of the rocker thus working it acted as a cut-off
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectrailroa, bookyear1901
