52 Pa. Stat. § 70-251
Any person or persons who shall knowingly or wilfully damage, or without proper authority remove or render useless any fencing, means of signaling, apparatus, instrument or machine, or shall throw open or obstruct any airway, or open a ventilating door and not have the same closed, or enter a place in or about a mine against caution, or carry fire, open lights, matches or any device for making lights or fire not authorized or approved in places where safety lamps are used, or handle without proper authority, or disturb any machinery or cars, or do any other act or thing whereby the lives or health of persons or the security of the property in or about a mine or colliery are endangered, shall be guilty of an offense against this act.
52 P.S. § 70-251