11. Mechanical tipplers ( still extant ) were installed at the pithead to handle the new steel skips. 12. The few police present could not control the crowd, which invaded the pithead and interfered with operations. 13. The main concert building, Mimerlaven, was once a pithead frame for the extraction of iron ore. 14. Here, they were attached to a steam operated cable and pulley system that hauled them to the pithead . 15. The museum features a range of above ground attractions including a winding house, saw mill, pithead , baths. 16. The winch house associated with the cable system is extant on the site just to the north of the pithead . 17. These took coal from the pithead down to a staithe, where the coal was loaded into river boats called keels. 18. The mine was unusually complex for its time, with the different pitheads being interconnected by underground galleries on many levels. 19. A party of men at the pithead had lowered a thermometer to check when the second explosion occurred at 08 : 55. 20. The pithead bath house built by the Miner's Welfare Committee in the 1930s survived and was converted to other uses.