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Standard Six Wheel Switcher USRA

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Standard Six Wheel Switcher USRA Standard S ix-Wheel Switcher Fourth D esign of the Government's Standard Locomotives to Be Built — Fourteen to Go to the Chicago Junction DURING t he month the fourth type of the government's sames a for the 0-8-0 standard locomotives. These frames standard locomotives was built by the American Loco are 5 in. wide from the front to just back of the rear set of motive Company at its Cooke Works. Fourteen of drivers, where a slab section 2 in. wide by 12 in. deep, in these locomotives are to be delivered to the Chicago Junction creasing to 3 in. wide by 18 in. deep at the extreme end is Railway and later twenty will go to the Pennsylvania Lines provided. They are 5 in. deep over pedestals and 4j,<s in. West and five to the Atlantic Coast Line. These locomotives deep at the smallest section of the upper rail. The lower mil weigh 165,000 lb. in working order; 55,000 lb. being carried is 3 in. deep. A heavier section is provided under the cylin on each axle, and they have 21 -in. by 28-in. cylinders with ders, the depth of the frame being increased to 1V& in. and 51 -in. drivers. These engines have many details in common to 9'/2 in. at the buffer beam. The pedestal binders have a with the standard 0-8-0 locomotives which were descril)ed in minimum section of 3 in. by 5 in. the Railway Mechanical Engineer for October on page 543. The s ide rods are of slab section, the front rod being 5 in. They are also a great deal like the Six-wheel switchers built by iy2 in. and the back rod 4 in. by 1 5/16 in. These are for the Chicago & North Western by the American Locomotive coupled together with a 4-in. knuckle pin. The connecting Company a few years ago, the cylinders, drivers and fireboxes rods are of channel section, being 6 in. deep with %-in. being practically of the same dimensions and the boiler is ot flanges 3*4 >n- wide, and j^-in. webs. A cast iron box type the same design with only about a difference of 100 sq. ft. in piston is used, having Hunt-Spiller bull and packing rings. the total evaporating heating surface and 40 sq. ft. in the The piston rod is 3J4 in- in diameter. The crosshead is of superheating surface. The Chicago & North Western en the alligator type, having Hunt-Spiller gun iron shoes. The gines have given excellent service in both transfer and switch steam distribution is controlled by the Baker valve gear, ing work. These engines are used to transfer freight between which in general is of a design similar to that used on the the Fortieth avenue and Proviso yards in Chicago, a distance 0-8-0 switchers, many parts of which are duplicates. Both of about nine miles. They have handled 3,000 tons over the Lewis and Mellin reverse gears will be used on locomo grades of 0.92 per cent and 0.8 per cent. tives in this order. The packing of both the valves and The b oiler of the standard 0-6-0 switcher is of the same cylinders is of the United States Metallic Packing Company's general design as that of the Eight-wheel switcher. It was de design. signed for a pressure of 200 lb. but has a working pressure of The p iston valves are 10 in. in diameter and are fitted with 190 lb. It is 66 in. in diameter, of the straight telescopic type, bushings and packing and bull rings of Hunt-Spiller gun with 19/32-in. barrel sheets, 9/16-in. front tube sheet and iron. The cylinder bushings are also made of the same y2-'m. back tube sheet. There are 158 two-inch tubes and material. twenty-four 5^-in. flues, 15 ft. long over tube sheets. The The t ender is identical with that used with the 0-8-0 size and length of the tubes are the same as those in the switchers, having a capacity of 8,000 gal. of water and 16 Eight-wheel switcher. The firebox is 72^ in. long by 66% tons of coal. The tank has the Locomotive Stoker Company's in. wide. The door and crown sheets are }i in. thick and type D coal pusher, Commonwealth cast steel underframe, the wrapper sheet and back head are 9/16 in. and yi in. and cast steel tender truck side frames to be furnished by the thick, respectively. The water legs are 5 in. wide at the American Steel Foundries and the Buckeye Steel Castings throat and 4l/2 in. wide on the other three sides. There are Company. The tender wheels are cast iron, being 33 in. in three tubes for a Security brick arch and the O'Connor fire- diameter. door flange is used. There are 346 flexible, 58 hollow and There a re a large number of details on this locomotive that 383 solid staybolts. The boiler is equipped with a 24-unit are common to the standard Eight-wheel switcher and a few type A superheater having a heating surface of 442 sq. ft., common to all of the standard locomotives. Among the items which with an evaporating surface of 1,886 sq. ft. gives an common to both of the switchers may be mentioned driving equivalent heating surface of 2,536 sq. ft. axles, driving boxes, shoes and wedges, pedestal crosstie, The g eneral design of the frame for these engines is the grates, tube setting, coal pusher, many of the cab fixtures, 593 594 R AILWAY MECHANICAL ENGINEER VoL. 92, No. 11 M. | | - | * | 25-------- * .#82 ------ft-- -- \\:-%| \ OCOC -s Z9--- | - 20/---- w/ -----------------2 - 27 o:/---------- November, 1 918 RAILWAY MECHANICAL ENGINEER 595 bumper a rrangement, tell details, reverse shaft yoke and bell Chicago & N orth Western by the American Locomotive Com crank. Such details as the dome cap, coupler, coupler draw- pany a few years ago: head, eccentric rod bearings, cylinder cocks and gage cocks General D ata are common to all of the standard locomotives. U.. S R. A. Chicago & Standard N orth Western These e ngines are to be equipped with the Shoemaker fire- Cage 4 f t. S'/2 in. 4 ft. 8'/S in. Service S witching Transfer Fuel B it. coal Bit. coal Tractive e ffort 39,100 1b. 37,000 1b. Weight i n working order 165.000 1b. 171,000 1b. Weightn o drivers 165,000 1b. 171,000 1b. Weight o f engine and tender in working o rder 309,000 lb. 298.000 lb. Wheel b ase, driving 11 ft. 11 ft. 6 in. Wheel b ase, total 1 1 ft. 1 1 ft. 6 in. Wheel b ase, engine and tender 49 ft. in. 47 ft- 6 1^ in. Ratios Weightn o drivers H- tractive effort. 4.22 4.62 Total w eight tractive effort 4.22 4.62 Tractive e ffort X diam. drivers «4- cquivalent h eating surface* 782 732 Equivalent h eating surface* -r grate area 7 7.3 78.9 Firebox h eating surface -5- equiva lent beating surface,* per cent... 5.41 5.89 Weightn o drivers -f- equivalent heating s urface* 64.7 66.28 Total w eight equivalent heating surface* 6 4.7 66.28 Volume b oth cylinders 11.22 cu. ft. 11.22 cu. ft. Equivalent h eating surface* -5- vol. cylinders 2 26.5 229.S Grate a rea ~ vol. cylinders 2.94 2.96 C \ 'limlers Kind S imple Simple Diameter a nd stroke 21 in. by 28 in. 21 in. by 28 in. Valves Kind P iston Piston Diameter 1 0 in. 12 in. Greatest t ravel 6 in. 6y2 in. Outside l ap H in. 1 in. Inside c learance 0 in. 0 in. — 4 -4 Leadn i full gear 'i in. !s ">■ O oooooooooo OOOOO OO Q o o ~~o OOOOOOO o ~o o o o oOOOO o o o i]tII ,1 1 o o o o o o J~ I Wheels o o Driving, d iameter over tires 51 in. 51 in. Driving, t hickness of tires in. 3'/i in. Driving j ournals, main, diameter and l&rt- 07 length 9 i n. by 12 in. 9Yi in. by 12 in. Driving j ournals, others, diameter , Sections T hrough Six-Wheel Switch Locomotive and l ength 9 in. by 12 in. 9Yi in. by 12 in. Boiler door, C ole safety valve, Sargent safety three-face water gage, Stvle S traight Straight Working'pressure 1 90 lb. per sq. in. 180 lb per sq. in. No. 11 non-lifting Nathan injector, Detroit three-feed lubri Outside d iameter of first ring 66 in. 66 in _ cator, Pyle electric headlight, Westinghouse air brakes, Im Firebox, l ength and width 72H in. by 66'4 in. i2% in. by 6.->'.v in. Firebox p lates, thickness Vi in. and H in. M in. perial type B uncoupling device, unit drawbar, Franklin Tubes, n umber and outside diameter. 158 — 2 in. 160— 2 in. Flues, n umber and outside diameter. 24 — 5VS in. 22 — 5H in. flexible metallic joints, Ashcroft steam gages, Chicago Rail Tubes a nd flues, length IS ft. 16 ft. way Equipment Company brake beams, Woods tender side Heating s urface, tubes 1,233 sq.ft. 1,333 sq. tt. Boiler f or the Standard Six-Wheel Switcher Heating s urface, flues 515 s q.
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