From [url]http://www.mininginstitute.org.uk/papers/GrangeIronCo.html[/url] />"The Grange Iron Company works were established in 1867 on the site of the former Grange Colliery, about two miles from Durham. The colliery had been owned by the Third Marquis of Londonderry who, in 1866, granted a lease to William Stobart that included liberty to pull down the mine buildings etc. The following were exhibited at the Newcastle Exhibition and give a good idea of the range of equipment that was manufactured: 1. Working model of screening apparatus and travelling belts for sorting, cleaning, and screening Coal.2. Working model of automatic expansion-gear as applied to Silksworth and other colliery winding engines.3. Double horizontal engine for driving dynamos with expansion slides worked by governor.4. Geared underground portable hand pump.5. Double-acting horizontal pump for mines worked by tail, or other ropes, showing method of tightening rope.6. Self-contained hauling engine with drums, worked either with steam or compressed air.7. Improved Gramme dynamo, very suitable for colliery installations.8. Coal-getter (Hall & Low’s Patent) for wedging down coal, stone etc.9. Comet Pump, on bogie for mines.10. Improved self-skimming foundry ladle (Goodwin & How’s Patent), whereby the metal is drawn from the bottom, but poured from the top.11. Permanent way safety clip for securing railway keys in their chairs (Goodwin & How’s Patent).12. Locking-gear for mineral tip waggon (P. Fowler’s Patent).13. Working model of Jucke’s revolving self-feeding smokeless furnace.14. Working model of automatic brake attachments, which renders overwinding impossible."On the 1930's OS map, an adit on the banks on the Wear is shown, which the remains of can be seen today. Proving the company also provided its own iron from production.
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