Transactions . F I G. FRAME- LOWER END. ScaZe/ H TTtcfoes = 2 -Focrt/. froceedLKas W&lofM& - 72. And Reid. Newcastle. APPENDIX NO. II. A DESCRIPTION OF PATENTS CONNECTED WITH MINING OPERATIONS, Taken out between January 1, 1871, and December 31, A CONTINUATION OP APPENDIX TO VOL. XX. By the SECRETARY. The descriptions have been mostly given in the words of the patentee, all matterbeing excluded except that which is actually necessary to give some idea of thegeneral principle involved. The exact details, if required, can readily be obtainedfrom the Specifications. The
Transactions . F I G. FRAME- LOWER END. ScaZe/ H TTtcfoes = 2 -Focrt/. froceedLKas W&lofM& - 72. And Reid. Newcastle. APPENDIX NO. II. A DESCRIPTION OF PATENTS CONNECTED WITH MINING OPERATIONS, Taken out between January 1, 1871, and December 31, A CONTINUATION OP APPENDIX TO VOL. XX. By the SECRETARY. The descriptions have been mostly given in the words of the patentee, all matterbeing excluded except that which is actually necessary to give some idea of thegeneral principle involved. The exact details, if required, can readily be obtainedfrom the Specifications. The patents are classified as before, viz.:— 1.—Lifting and winding, including safety-hooks. 2.—Mining, boring, and sinking. 3.—Pumping and modes of raising water. 4.—Ventilation. 5.—Safety-lamps and lighting mines. 6.—Coal cutting, getting, and breaking down. 7.—Explosive compounds. 8.—Miscellaneous. FIRST AND WINDING, INCLUDING SAFETY-HOOKS. 1871. No. 1571. safety apparatus composed of two link
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Keywords: ., bookcentury1800, booksubjectmechan, booksubjectmineralindustries
