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'Fifty-five ton tractor trailer units at Bradford No. 1 Mine near Cadiz, Ohio: Coal from the Bradford open-cut mine is loaded into 55-ton trator-trailer trucks to be transported to the Georgetown Preparation Plant where it is washed, dried and sized. Thes tractor-trailer trucks are powered by 400 H.P. Deisel V-12 engines. They have a rated capacity approximately equal to that of a railroad car (55-tons). The overall length of this unit is 55 feet. It is 12 feet in width and at its highest point, is 11 1/2 feet from the ground. The front tires on these units are 14:00 x 24. The rear tires on the tractor and the tires on the trailer are 18:00 x 25. These tractor-trailer units are lubricated while in operation by an electrically-times, automatically-controlled lubricating system, which lubricates each of the 63 bearings once each operating hour. Similar but slightly smaller capacity trucks are in use at the Georgetown No. 12 Mine. The coal is loaded, without being shot, by electric shovels having dippers of 9 cubic yards capacity.'

1. Fifty-Five Ton Tractor Trailer Units at Bradford Mine No. 1 near Cadiz, Ohio

IDNO:
004348
Title:
Fifty-Five Ton Tractor Trailer Units at Bradford Mine No. 1 near Cadiz, Ohio
Description:
'Fifty-five ton tractor trailer units at Bradford No. 1 Mine near Cadiz, Ohio: Coal from the Bradford open-cut mine is loaded into 55-ton trator-trailer trucks to be transported to the Georgetown Preparation Plant where it is washed, dried and sized. Thes tractor-trailer trucks are powered by 400 H.P. Deisel V-12 engines. They have a rated capacity approximately equal to that of a railroad car (55-tons). The overall length of this unit is 55 feet. It is 12 feet in width and at its highest point, is 11 1/2 feet from the ground. The front tires on these units are 14:00 x 24. The rear tires on the tractor and the tires on the trailer are 18:00 x 25. These tractor-trailer units are lubricated while in operation by an electrically-times, automatically-controlled lubricating system, which lubricates each of the 63 bearings once each operating hour. Similar but slightly smaller capacity trucks are in use at the Georgetown No. 12 Mine. The coal is loaded, without being shot, by electric shovels having dippers of 9 cubic yards capacity.'