DEPARTMENT OF LABOR
MINE SAFETY AND HEALTH ADMINISTRATION
COAL MINE SAFETY AND HEALTH
REPORT OF INVESTIGATION
Surface of Underground Coal Mine
Fatal Machinery Accident
September 21, 2000
Humphrey No. 7 Mine
Consolidation Coal Company
Maidsville, Monongalia County, West Virginia
I.D., No. 46-01453
APPENDIX B
Figure 5: This image shows a rail displancement of approximately 2 inches when supporting the weight of a car. When the car is removed from the end of the rail, the displacement increases to 4 inches. | |
Figure 6: The narrow clearance between the car and the vertical hold-down angle requires the rotary dump rails to be level with the track rails. | |
Figure 7: The extension bar is shown affixed to the cut-off bar. Note that it cannot be used when the car is fully loaded. |