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Expired
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Henry Edward Dilke Merry
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Individual
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Individual
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Publication of GB190827846ApublicationCriticalpatent/GB190827846A/en
27,846. Merry, H. E. D. Dec. 22. Rock drills.-The feed-screw, 1, of a rock drill, is extended through the forward end of the cradle 2 to receive a reversible ratchet wrench 4. The screw may then be turned in either direction from either end of the machine.
GB190827846D1908-12-221908-12-22An Improvement relating to the Feed Screw of Rock Drills.
ExpiredGB190827846A
(en)
An Arrangement in connection with Drilling and Boring Machines for Mining, Quarrying and like Operations, of a Nut, Crossbar or Clamp on the Feed or Driving Screw, to Effect with Withdrawal of the Drill from a Hole.