English: Wellbrook Beetling Mill. Linen manufacture was of major importance in 18th century Ireland and beetling was the final stage in the production process. This water-powered hammer mill has its original machinery still in working order. The mill takes its power from the fast flowing Ballinderry River. A short distance from the road you can see the mill race and the flume - the wooden trough carried on piers of Coal island brick - which takes the water for 15 metres to hit and drive the water wheel on the gable of the building. The wheel is 5 metres wide and 1.4 metres deep, made mainly of wood. with an iron shaft and surround which bears the name of the Armagh Foundry. The lever to open the sluice gate to start and stop the wheel is inside the mill itself - more at http://irishantiquities.bravehost.com/tyrone/wellbrook/wellbrook.html