Empresa Industrial do Melhoramentos no Brazil 4-4-0 Locomotives in Brazil

Class Details by Steve Llanso of Sweat House Media

Class unknown (Locobase 11180)

Data from Exhibit of Locomotives by the Baldwin Locomotive Works (Philadelphia: J B Lippincott, 1893), pp. 54-57; and DeGolyer, Volume 18, p. 178. (Thanks to Chris Hohl for his 13 January 2020 email and extensive spreadsheet covering all of the locomotives at the Exposition.) Works number was 13351 in April 1893.

At the time of the 1893 Columbian Exposition, Baldwin was hitting its stride in the development and promotion of Vauclain's four-cylinder compound design. Locomotives of nearly every kind would eventually appear with the setup. But few if any would use such small (7"/179 mm) piston valves to supply steam to each pair of 1 HP and 1 LP cylinders.

Reflections on experience with the Leopoldina's Leopoldo Leite (Locobase 20705), Baldwin's specification contained the railway's request to increase the weight to 40,000 lb, if possible and to lengthen both the wheelbase and the tubes by one foot (305 mm). As noted in their entry (Locobase 20704), the changes were laid out in the spec used to build the Oeste de Mina pair two months earlier.

After the exposition, the locomotive was delivered to the MdeB, which later merged with the EF Central do Brasil. The engine took road number 25.

Baldwin recognized many of its sub-contractors and suppliers in this catalogue:

Boiler and fire-box steel Otis Steel Co., Limited, Cleveland, Ohio.

Tubes Reading Iron Co., Reading, Pa.

Tires Standard Steel Works, Philadelphia, Pa.

Metallic packing C. C. Jerome, Chicago, 111.

Sight feed-lubricator Detroit Lubricator Co., Detroit, Mich.

Injectors William Sellers & Co., Incorporated, Philadelphia, Pa.

Safety-valves Coale Muffler and Safety-Valve Co., Baltimore, Md.

Headlight I. A. Williams & Co., Utica, N. Y.

Asbestos fire-felt lagging H. W. Johns Mfg. Co., Philadelphia.

Tender brake-beams National Hollow Brake Beam Co., Chicago, 111.

20-ton traversing jacks Richard Dudgeon, New York.

Principal Dimensions by Steve Llanso of Sweat House Media

Locobase ID11180
RailroadEmpresa Industrial do Melhoramentos no Brazil
Number in Class1
Road Numbers25
Number Built1
BuilderBurnham, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 8.17 / 2.49
Engine Wheelbase (ft / m)21.25 / 6.48
Ratio of driving wheelbase to overall engine wheelbase 0.38
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)37,020 / 16,792
Engine Weight (lbs / kg)58,320 / 26,454
Tender Loaded Weight (lbs / kg)51,466 / 23,345
Total Engine and Tender Weight (lbs / kg)109,786 / 49,799
Tender Water Capacity (gals / ML)2000 / 7.58
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)5 / 5
Minimum weight of rail (calculated) (lb/yd / kg/m)31 / 15.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)49.25 / 1251
Boiler Pressure (psi / kPa)180 / 12.40
High Pressure Cylinders (dia x stroke) (in / mm)9" x 20" / 229x508
Low Pressure Cylinders (dia x stroke) (in / mm)15" x 20" / 381x508
Tractive Effort (lbs / kg)7401 / 3357.04
Factor of Adhesion (Weight on Drivers/Tractive Effort) 5.00
Heating Ability
Tubes (number - dia) (in / mm)140 - 2" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)10.83 / 3.30
Firebox Area (sq ft / m2)73 / 6.78
Grate Area (sq ft / m2)10 / 0.93
Evaporative Heating Surface (sq ft / m2)862 / 80.08
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)862 / 80.08
Evaporative Heating Surface/Cylinder Volume585.35
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1800
Same as above plus superheater percentage1800
Same as above but substitute firebox area for grate area13,140
Power L14432
Power MT527.87

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