The Engineer's and Mechanic's Encyclopædia: Comprehending Practical Illustrations of the Machinery and Processes Employed in Every Description of Manufacuture of the British Empire ...T. Kelly, 1848 - Industrial arts |
Other editions - View all
Common terms and phrases
acid alkali ammonia angles antimony aperture apparatus applied axis barrel body boiler boiling bottom brass called carbonic acid carriage cast iron centre charcoal chlorine cistern coal cock colour condensed consists construction containing copper cupel cylinder diameter distillation effect employed engine engraving equal feet fire fixed fluid force frame fuel furnace glass groove heat hole horizontal inches instrument invention iron length lever liquid liquor lower machine matter means melted mercury metal motion mould mould boxes mucilage muriatic acid nitric acid obtained operation passing patent piece pipe piston placed plate portion potash pressure prevent produced proportion pulley purpose quantity represents rollers round screw shaft side sliding specific gravity spermaceti steam substance sufficient sulphuric sulphuric acid surface temperature thickness tube turned upper usually valve vapour velocity vertical vessel weight wheel wood zinc
Popular passages
Page 460 - arrives on the meridian, its rays, concentrated by the lens, set fire to the powder, which discharges the gun, and thus announces the hour of noon. " We take no note of time but from its loss: To give it then a tongue is wise in man." DIAGRAM. A geometrical scheme for the explanation of the
Page 383 - place through the heated air, in a space equal at least to four inches, producing a most brilliant ascending arch of light, expanded and conical in the middle. When any substance was introduced into this arch, it instantly became ignited. Platinum melted in it like wax in the flame of a common candle.
Page 653 - The circumference of every circle, whether great or small, is supposed to be divided into 360 equal parts, called degree! ; and every degree into 60 parts, called minutes ; and every minute into 60 seconds. To measure the inclination of lines to each other, or angles, a circle is described round the
Page 485 - of the multiplier, and set the result of each in one place, removed to the right hand of those in the multiplicand, and the sum of these successive products will be the answer. Example. Multiply 6 feet 4 inches 3 parts by 10 feet 3 inches 9
Page 436 - cotton is opened, cleaned, spread, carded, drawn, roved, spun, wound, warped, dressed, and woven. The various machines are proportioned to each other in regard to their capability of work, and they are so placed in the mill as to allow the material to be carried from stage to stage with the least possible
Page 157 - fall of the mercury, it will last but a short time. 4. If fair weather continue for several days, during which the mercury continually falls, a long succession of foul weather will probably ensue ; and again, if foul weather continue for several days, while the mercury continually
Page 383 - an inch long, and one-sixth of an inch in diameter, were brought within one-thirtieth or one-fortieth of an inch of each other, a bright spark was produced, and more than half the volume of the charcoal became ignited to whiteness;
Page 17 - of improvement. Thus, a sandy soil may owe its fertility to the power of the subsoil to retain water ; and an absorbent clayey soil may occasionally be prevented from being barren in a moist climate by the influence of a substratum of sand or gravel. Those soils that are most productive of corn contain
Page 17 - The power of soils to absorb moisture, a principle essential to their productiveness, ought to be much greater in warm and dry countries than in cold and moist ones; and the quantity of fine aluminous earth they contain should be larger. Soils, likewise, that are situated on declivities, ought to be