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Picture drawn by Roger Zitko showing new face roof bolter on a continuous miner.
Two men with equipment putting up bolts to support the mine roof.
Two men running a roof bolter in Jamison No. 9 mine.
Miners using a machine to bolt the mine roof.
Two miners use equipment to secure the roof at the Pursglove No. 15 mine.
Miner putting bolts into the roof of a mine for support.
Miner putting bolts into the roof of a mine for support.
Miner putting bolts into the roof of a mine for support.
Two miners work on putting in roof bolts in the Pittsburgh Seam. Timber jack used to hold the roof while bolting.
Two miners put bolts in to the mine rood at Jamison No. 9.
Three miners putting bolts in the roof at Bishop Mine. Jacks used to hold the roof up while this process was being done.
Two miners work with a Joy roof bolt drill at Jamison No. 9.