Locomotive appliances . L—Lock Nut to secure Lubricator toAngle Iron. B—Union to connect Pipe for admis-sion of steam. J-J—Unions to connect Cylinder Feeds to Tallow Pipes. //—-Uuiou to connect Air Pump Feed. Af-*Stenin Valve for Boiler Pressure.(Not shown.) E—Filler Plug. W—Valve to admit water from Con-denser to Oil Reservoir, O-0-O Regulating Peed Valves. C-C—Auxiliary Oilers operative withThrottle open or closed. P-P—Auxiliary oiler Filler —Auxiliary Oiler Peed Lifting stems to hold Auto-matic Cheek Valves off their SeatS SO (Masses will (ill Willi Water of Condensa
Locomotive appliances . L—Lock Nut to secure Lubricator toAngle Iron. B—Union to connect Pipe for admis-sion of steam. J-J—Unions to connect Cylinder Feeds to Tallow Pipes. //—-Uuiou to connect Air Pump Feed. Af-*Stenin Valve for Boiler Pressure.(Not shown.) E—Filler Plug. W—Valve to admit water from Con-denser to Oil Reservoir, O-0-O Regulating Peed Valves. C-C—Auxiliary Oilers operative withThrottle open or closed. P-P—Auxiliary oiler Filler —Auxiliary Oiler Peed Lifting stems to hold Auto-matic Cheek Valves off their SeatS SO (Masses will (ill Willi Water of Condensation whenempty. F-F-F -Valves to drain Sight-FeedGlasses without emptying OilReservoir. K-K-K Removable Plugs for renew-ing or cleaning Sight-FeedGlasses. / Gauge Glass. (. Valve io drain Oil Reservoir. 266 LOCOMOTIVE APPLIANCES The principle by which it is claimed that thishold-up of oil in the tallow pipes is prevented isshown in Fig. 2, which illustrates the automatic AUTOMATIC 6T£AM C/V£Sr PLUG. CHOKC Fig. 2. Vertical longitudinal section of Michigan automatic steam chest plug, showing the large area and its ball valve, associated with a constant choke at the side thereof. steam chest plug. This device has a ball valve, theseat of which is about equal in area to the inside of the LOCOMOTIVE APPLIANCES. 267 tallow pipes of the locomotive, and having at one sideof this seat the choke opening. The cylinder feedsJ J, Figs. 1 and 3, have no chokes within the lubri-cator. Hence a full current of steam is delivered fromthe boiler through the steam tube, condenser, equaliz-ing tubes and tallow pipes to these automatic plugsat each steam chest, thus giving a complete steamarea from the boiler to the steam chest about equal tothat of the tallow pipes. Consequently, when thelocomotive throttle is wide open, the forward pressurefrom the lubricator practically equalling the backpressure from the steam chest, the ball in the steamchest plug drops by gravity from its s
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectlocomot, bookyear1901
