THE HISTORY AND FUTURE OF ROCK MASS CHARACTERISATION BY

History of drilling rigs

History of drilling rigs

Peter Sweeny, building on Robert Beart's earlier design, made a huge advancement in rotary drill technology, enabling almost continuous drilling. His new design also improved on hole cleaning. . Charles Burleigh, John W. Brooks, and Stephen F. Gates patented a mechanical drill meant to be used on the Hoosac tunnel: the compressed air Burleigh drill. The tunnel spurred several innovations in drilling technology, including the earlier Couch/Fowle drill.. . Edward A.L. Roberts was awarded a patent in November 1866 for what would become known as the Roberts Torpedo, a device for increasing. . Until were developed in the late 19th century, the main method for drilling rock was muscle power of man or animal. The technique of oil drilling through or has its origins dating back to the ancient Chinese Han dynasty in 100 BC, where percussion drilling was used to extract natural gas in the Sichuan province. Early oil and gas drilli. [pdf]

Holman rock drill

Holman rock drill

Holman Brothers Ltd. was an English mining equipment manufacturer founded in 1801 based in . Holman was Camborne's, and indeed Cornwall's largest manufacturer of industrial equipment. . In 1881, brothers John Henry and James Miners Holman, had taken over running the business from their father John. They were offered the designs of a new by a James McCulloch. the brothers filed a joint patent with. . Holman began to manufacture compressors. The first "Cornish" compressors were built to designs adapted from existing steam engines. In 1894, Holman manufactured the largest compresso. [pdf]

Compact rock drill rigs

Compact rock drill rigs

Surface drilling rigs are hydraulic drill rigs typically designed for small to medium-scale quarries and small-sized open pit mines, suitable for rock drilling applications where rock hardness exceeds F10 in aggregate quarrying, civil engineering, road construction, open pit mining, hydropower plant construction and other blasthole drilling projects. [pdf]

Power Your Operations With Reliable Mining Equipment?

We are a leading manufacturer of drilling rigs and air compressors for mining and construction industries.