On the 14th January 1909 the hoppit at Tilmanstone Colliery was being raised at No.1 pit when the steam was cut out too early and an over-wind occurred, this resulted in the pulley wheel breaking sending the hoppit back down into the pit. Unfortunately the men were working in the shaft at the bottom and the hoppit, which was loaded up and weighing about 3 tons, landed within the men, killing three of them. The three men were R. Smesson, James Hambrook and Harry Arnold. Officials rushed down into the pit within a few minutes and brought up the bodies of the three men, surprisingly the bodies showed no signs of injury. The directors released a statement deploring the accident but they said in all other respects it was not a serious accident and no serious damage had been sustained to the shaft and fittings, work would begin again within 48 hours.
At the time the colliery was being sunk by Kent Coal Concessions Limited. Two shafts were being sunk, the No.1 shaft, where the accident occurred, which is down to 922 feet, and Gabrielle Pit, which is sunk to a depth of 761 feet.