Report on Machinery and Processes of the Industrial Arts and Apparatus of the Exact SciencesVan Nostrand, 1869 - 669 páginas |
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Página 8
... inches in thickness . The force required to drive these masses through the rollers from which they receive their form , could hardly be conveniently obtained from a water- power . Moreover , the massive hammers now required to forge the ...
... inches in thickness . The force required to drive these masses through the rollers from which they receive their form , could hardly be conveniently obtained from a water- power . Moreover , the massive hammers now required to forge the ...
Página 10
... inches thick , in less than a quarter of an hour . During every stage of the process , quantities of fine sand are thrown upon the plate , and this literally takes fire as it touches the flaming surface , and covers it as it melts with ...
... inches thick , in less than a quarter of an hour . During every stage of the process , quantities of fine sand are thrown upon the plate , and this literally takes fire as it touches the flaming surface , and covers it as it melts with ...
Página 12
... inch , placed directly in the line of the axis . A single revolution of the screw advances the extremity , therefore , one - twentieth of an inch . But the head of the screw is ten inches in circumference , and is divided into 200 parts ...
... inch , placed directly in the line of the axis . A single revolution of the screw advances the extremity , therefore , one - twentieth of an inch . But the head of the screw is ten inches in circumference , and is divided into 200 parts ...
Página 13
... inches each . A pair of them are exhibited resting one on the other . They have a thick- ness of about half an inch , but are stiffened by means of deep ribs cast upon the reverse , which ribs connect the points , three in number , on ...
... inches each . A pair of them are exhibited resting one on the other . They have a thick- ness of about half an inch , but are stiffened by means of deep ribs cast upon the reverse , which ribs connect the points , three in number , on ...
Página 42
... inches ; length of stroke , eighteen inches . Available pressure , fourteen pounds to the square inch . Number of revolutions , sixty per minute . With these data the power of the engine may be easily calculated . It was claimed to be ...
... inches ; length of stroke , eighteen inches . Available pressure , fourteen pounds to the square inch . Number of revolutions , sixty per minute . With these data the power of the engine may be easily calculated . It was claimed to be ...
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advantage amount angle apparatus applied armature atmosphere axis Bessemer process boiler calories carried cent centimetres circumference compression construction contrivance crank cubic metres cylinder diameter direction discharge disk distance effect electric employed engine equal exhibited experiments Exposition extremity feet force furnace furnished glass half heat horizontal horse-power hundred hydraulic hydraulic head illustrated inches increased instrument introduced invention inventor iron kilograms kilometres latent heat length lever light light-houses liquid machine manufacture means mechanical ment Messrs metal metres millimetres mode motion movable types movement necessary object observed operation ordinary Paris passes piston plate position pounds practical present pressure prism produced pulley pump purpose refrigerator reservoir revolution roller rotary engine rotation screw sextant shaft side Siemens space spherometer steam steam-engine steel surface telescope temperature tion tonometer tube turbine turn valve vapor velocity vertical vessel weight wheel Wicklow Head
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Página 31 - B with the sound velocity where y is the ratio of the specific heat at constant pressure to the specific heat at constant volume, and p is the gas pressure.