. American engineer and railroad journal . RAL TOOL ROOM. THE COST OF THE MACHINE IS LOW J IT IS RAPID AND ACCURATE IN OPERATION. tin- -hops. | See pages 458 and 459, December, 1906,issue.) 2.—Special devices, such as mandrels and chucks, to facilitatethe machining of various classes of work. 3.—Jigs—attachments to machines for the economical produc-tion of various kinds of work. 4.—Templets and jigs, such as illustrated in Fig. 7, to obviatethe necessity of laying out work. Includes jigs and templets for:a—Drilling steam chest stud holes,b—Drilling cylinder stud holes. c—Drilling cylinder sad
. American engineer and railroad journal . RAL TOOL ROOM. THE COST OF THE MACHINE IS LOW J IT IS RAPID AND ACCURATE IN OPERATION. tin- -hops. | See pages 458 and 459, December, 1906,issue.) 2.—Special devices, such as mandrels and chucks, to facilitatethe machining of various classes of work. 3.—Jigs—attachments to machines for the economical produc-tion of various kinds of work. 4.—Templets and jigs, such as illustrated in Fig. 7, to obviatethe necessity of laying out work. Includes jigs and templets for:a—Drilling steam chest stud holes,b—Drilling cylinder stud holes. c—Drilling cylinder saddles, cylinder heads, valve chamberheads, spiders, follower plates, eccentric straps, steam pipeelbows, packing glands,d—Laying off driving box brasses,e—Drilling flue roller —Special machines:a—Centering machine, illustrated in Fig. —Snap ring packing ring milling machine. See page 334, September, 1904, issue,c—Crank axle pin turning machine. See The Solution ofthe Crank Axle Problem, in this FIG. 6.—THE KIND OF REAMERS, WITHOUT STANDARDS AS TO SIZE, TAPER, LENGTH, OR MANNER OF CONSTRUCTION AND DESIGN, THAT RESULTED IN ONE SHOP FROM THE WORKING OUT OF THE IDEAS OF THE INDIVIDUAL FOREMAN. THESE REAMERS ARE THEMSELVES NOT ONLY SEVERALLY MORE EXPENSIVE TO CONSTRUCT THAN THE STANDARD ONES, AND LESS EFFICIENT IN OPERATION, BUT THEY ALSO MAKE THE WORK ON THE LOCOMOTIVES VERY COSTLY IN REPAIRS AND REPLACEMENTS. 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 reamingfram
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
