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Chicago, Milwaukee, St. Paul & Pacific (Milwaukee Road) “James Toleman”
United States | 1893 | only one produced
The locomotive before changed to American standards
The locomotive before changed to American standards
Railway and Locomotive Engineering, October 1898

The “James Toleman” was developed by Frederick Charles Winby to test the installation of a long firebox between uncoupled axles. Each axle had its own power plant, with the inner cylinders driving the first driving axle. Thus one could do without long coupling rods. The boiler was oval in cross-section to fit between it large wheels. After attending the Columbian Exposition, she was given to the Milwaukee Road for trials. However, it quickly became apparent that she repeatedly had too little steam and parts regularly broke. Even a lengthy visit by Winby to the USA could not solve the problems that had arisen.

General
Built1893
ManufacturerHawthorn, Leslie & Co.
Axle config4-2-2-0 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Service weight120,000 lbs
Adhesive weight70,000 lbs
Axle load35,000 lbs
Power
Power Plant
Driver diameter90 in
Boiler pressure175 psi
Cylindersfour, front: 17 x 22 in
rear: 16 1/2 x 24 in
Boiler
Grate area28 sq ft
Firebox area182.6 sq ft
Tube heating area1,817.4 sq ft
Evaporative heating area2,000 sq ft
Total heating area2,000 sq ft
Calculated Values
steam locomotive
express
prototype
duplex
last changed: 07/2023
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