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acid alloy aluminium amount apparatus assay average blast boiler borax bottom buddle button carbonate of soda Cardiganshire cast iron cent chloride of aluminium coal Consols contained copper Cornish Cornwall cost cost-book crucible cubic feet cupellation cwts cylinder depth diameter divided dividend effected employed engine evaporated fathoms fire flues flux fuel furnace gallons given gold Grantors heat hereby horse-power hydrochloric acid introduced lead length lever litharge machine means melted metal mineral mines minute multiply necessary obtained operation ordinary oxide passed pearlash piston placed portion pounds pressure produce proportion puddling furnace pump purpose purser quantity quotient radius rod regulations reverberatory furnace revolutions per minute roasting rope shaft shareholders shares silver slag slime sodium square inch steam stuff sufficient sulphide sulphur superheating surface temperature tons tubes valve vapour vesicular water weight Wheal Wheal Alfred Wheal Busy wheel whilst zinc
157 ページ - The lead thus obtained will evidently be richer than the crystals remaining in the kettle. Assay of Silver. — The assay of argentiferous galena is, in England, usually conducted in a wrought-iron crucible of plate iron, of good quality, turned up in the form of a crucible, and carefully welded at the edges ; the bottom is closed by a large iron rivet, securely welded to the sides, and the whole finished by the hammer on a properly-formed mould. To make an assay in a crucible of this description,...
220 ページ - ... it shall be lawful for the said lessor at any time thereafter into and upon the said demised premises or any part thereof in the name of the whole to re-enter and the same to have again re-possess and enjoy as of his or their former estate anything hereinafter contained to the contrary notwithstanding.
26 ページ - The manner of the carriage is by laying rails of timber, from the colliery, down to the river, exactly straight and parallel ; and bulky carts are made with four rowlets fitting these rails ; whereby the carriage is so easy that one horse will draw down four or five chaldron of coals, and is an immense benefit to the coal merchants.
1 ページ - Son of man, the house of Israel is to me become dross: all they are brass, and tin, and iron, and lead, in the midst of the furnace ; they are even the dross of silver.
26 ページ - Beaumont, a gentleman of great ingenuity and rare parts, adventured into our mines with his thirty thousand pounds ; who brought with him many rare engines not known then in these parts ; as the art to boore with iron rodds, to try the deepnesse and thicknesse of the coale ; rare engines to draw water out of the pits ; waggons with one horse to carry down coales from the...
291 ページ - A company engaged in working mines within and subject to the jurisdiction of the Stannaries: is not a partnership within the meaning of this Act.
1 ページ - Every thing that may abide the fire, ye shall make it go through the fire, and it shall be clean : nevertheless it shall be purified with the water of separation : and all that abideth not the fire ye shall make go through the water.
171 ページ - ... so that it may rise up amongst, and completely penetrate and search every part of the metal prior to the congelation, or...
292 ページ - ... members, shall be severally liable for the payment of the whole debts of the company contracted during such time, and may be sued for the same, without the joinder in the action or suit of any other member.
292 ページ - Act (which it is empowered to do at any time), the following consequences shall ensue ; (that is to say,) (1.) The company shall be incapable of suing either at law or in equity, but shall not be incapable of being made a defendant to a suit either at law or in equity...