. American engineer and railroad journal . PLACEMENTS. Standard taper link motion pinreamers. Standardizing the taperon all link motion pins of all en-gines will not only reduce the num-ber of reamers at each point to aminimum, but will make it possibleto concentrate the manufacture ofpins at a central point, supplyingall outside points on requisitions. Standard crosshead reamers. Thetaper on piston, crosshead, andwrist pin fits was standardized forall classes of engines on the sys-tem, reducing the number of ream-ers to only nine as shown in Fig. 5. Standard reamers for reamingframe holes to
. American engineer and railroad journal . PLACEMENTS. Standard taper link motion pinreamers. Standardizing the taperon all link motion pins of all en-gines will not only reduce the num-ber of reamers at each point to aminimum, but will make it possibleto concentrate the manufacture ofpins at a central point, supplyingall outside points on requisitions. Standard crosshead reamers. Thetaper on piston, crosshead, andwrist pin fits was standardized forall classes of engines on the sys-tem, reducing the number of ream-ers to only nine as shown in Fig. 5. Standard reamers for reamingframe holes to standard sizes, mak-ing it possible to concentrate themanufacture of finished enginebolts for the system at Topeka,thus using the automatic bolt ma-chine Jo its .full capacity. Besides these, nine special stand-ard ball joint reamers, with insert-ed blades diametrically opposedbut unevenly spaced, were shippedto the principal points on the sys-tem in order that a standard ra-dius might be made on all steampipes on engines passing througli. FIG. 7.—CYLINDER, CYLINDER HEAD AND STEAM CHEST JIGS FOR DRILLING STUD HOLES ACCURATELY, THUS INSURING THE USE OF STANDARD MANUFACTURED PARTS. HARDENED STEEL BUSHIXi,- FOR THE VARIOUS SIZES OF DRILLS ARE PROVIDED WITH THESE JIGS. 242 AMERICAN ENGINEER AND RAILROAD JOURNAL. d—Complete re-construction of cylinder boring machine, asshown in Fig. —Machine improvements :*a—Speeding up line and countershaftsb—Pulleys enlarged,c—Wider driving cones applied,d—Larger feed cones and —Use of bronze worms,f—Steel gears and pinions. g—Increase in size of motors for motor —Standard abrasive wheel stands. Fig. —High speed milling cutters and gang cutters:a—For heavy production work on shoes and —Cutters with inserted teeth for side rod channels, eccen-trics, eccentric straps, —For small accurate work on flanging dies. MCB tire andknuckle gauges, tire finishing tools. and the work is directly
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
