Machinery and Processes of the Industrial Arts: And Apparatus of the Exact SciencesU.S. Government Printing Office, 1869 - 669 páginas |
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Página 17
... scale of some magnitude , and is therefore concentrated in the hands of a comparatively small number ; while photography adapts itself to all circumstances , and to the humblest resources , and may be practiced by an individual working ...
... scale of some magnitude , and is therefore concentrated in the hands of a comparatively small number ; while photography adapts itself to all circumstances , and to the humblest resources , and may be practiced by an individual working ...
Página 34
... scale , some fifteen years ago , to be employed as the motive power of a sea - going vessel ; or , more properly , the present one is a different machine . In the original model a working cylinder was placed immediately over the fire of ...
... scale , some fifteen years ago , to be employed as the motive power of a sea - going vessel ; or , more properly , the present one is a different machine . In the original model a working cylinder was placed immediately over the fire of ...
Página 48
... scale . As being the first in which these several proposi- tions have been fully established , this engine cannot but be regarded with peculiar interest . ROPER'S ENGINE . In the American annex was exhibited a hot - air engine by Messrs ...
... scale . As being the first in which these several proposi- tions have been fully established , this engine cannot but be regarded with peculiar interest . ROPER'S ENGINE . In the American annex was exhibited a hot - air engine by Messrs ...
Página 54
... scale . Between the two cylinders communication was always free , both above and below their respective pistons ; the air passing from one to the other alter- nately , as the pistons moved . But the body of air above the pistons was ...
... scale . Between the two cylinders communication was always free , both above and below their respective pistons ; the air passing from one to the other alter- nately , as the pistons moved . But the body of air above the pistons was ...
Página 63
... scale one to ten . It will be seen to resemble a steam - engine in all its essential parts ; and , as in that engine , it has valves governed by an eccentric on the main shaft . The cross - section , Fig . 6 , shows that the cylinder is ...
... scale one to ten . It will be seen to resemble a steam - engine in all its essential parts ; and , as in that engine , it has valves governed by an eccentric on the main shaft . The cross - section , Fig . 6 , shows that the cylinder is ...
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Términos y frases comunes
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
Pasajes populares
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.