Geology of Coal: Examination of Coal Properties, Drifts, Slopes, and Shafts, Methods of WorkingInternational Textbook Company, 1907 |
Άλλες εκδόσεις - Προβολή όλων
Geology of Coal; Examination of Coal Properties; Drifts, Slopes, and Shafts ... International Correspondence Schools Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2015 |
Geology of Coal; Examination of Coal Properties; Drifts, Slopes, and Shafts ... International Correspondence Schools Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2022 |
Συχνά εμφανιζόμενοι όροι και φράσεις
amount anthracite anticlines basin bench bituminous coal Brachiopod break breast carbon Carboniferous cars cent chute clay clay seams cleats coal beds coal field coal measures coal seams coking Cretaceous cross-entries cross-road crushing deposits depth Devonian distance drift drill driven eastern entry excavation fault feet thick fireclay floor fossils gangway geological grade haulage roads hoisting holes horizontal inches inclined seam iron joints layers Lepidodendron lignite limestone loaded located long-wall face lower manway material method miner mining necessary occur opening outcrop overlying packs Pennsylvania pitch placed portion Precambrian region right angles River rocks roof pressure room-and-pillar sand sandstone shaft shaft bottom shaft lining shaft pillar shale shots shown in Fig side sinking slate slope sometimes square miles strata stratum stream surface synclinal timber track tunnel undercut upper usually vary vertical wedged weight western width
Δημοφιλή αποσπάσματα
Σελίδα 116 - Should the Contractor at any time refuse or neglect to supply a sufficiency of properly skilled workmen, or of materials of the proper quality, or fail in any respect to prosecute the work wIth promptness and diligence, or fail in the performance of any of the agreements herein contained, such refusal, neglect or failure being certified by the Architects, the Owner shall be at liberty, after three days...
Σελίδα 4 - It follows: 1, talc; 2, gypsum; 3, calcite; 4, fluorite; 5, apatite; 6, orthoclase; 7, quartz; 8, topaz; 9, corundum; 10, diamond.
Σελίδα 117 - ... in case of such discontinuance of the employment of the contractor he shall not be entitled to receive any further payment under this contract until the said work shall be wholly finished...
Σελίδα 116 - ... to terminate the employment of the contractor for the said work and to enter upon the premises and take possession for the purpose of completing the work included under this contract, of all materials, tools and appliances thereon, and to employ any other person or persons to finish the work and to provide the materials therefor...
Σελίδα 117 - That for and in consideration of the sum of one dollar cash in hand paid by the party of the second part to the party of the first part...
Σελίδα 105 - ... ring, or good, clean gravel may be used in the same proportion as broken stone.
Σελίδα 115 - ... the party of the first part under this agreement without any notice or demand by the party of the second part.
Σελίδα 17 - And the said party of the second part hereby covenants and agrees to pay to...
Σελίδα 16 - America, party of the first part, and , for and on behalf of the State of '. , party of the second part, witnesseth : That in consideration of the...