Journal of the Franklin InstituteFranklin Institute, 1851 Vols. 1-69 include more or less complete patent reports of the U. S. Patent Office for years 1825-1859. cf. Index to v. 1-120 of the Journal, p. [415] |
From inside the book
Արդյունքներ 100–ի 1-ից 5-ը:
Էջ 7
... increased amount of duty , they require from two to three times the quantity of air forcing through the fire in the same time . The working parts of these engines have also been increased in di- mensions ; the cylinders from 12 inches ...
... increased amount of duty , they require from two to three times the quantity of air forcing through the fire in the same time . The working parts of these engines have also been increased in di- mensions ; the cylinders from 12 inches ...
Էջ 11
... increasing propor- tionately the amount of power requisite to draw the air through the tubes , and consequently the rods in the tubes would cause a loss of power to the engine from the increased resistance to the blast . He thought ...
... increasing propor- tionately the amount of power requisite to draw the air through the tubes , and consequently the rods in the tubes would cause a loss of power to the engine from the increased resistance to the blast . He thought ...
Էջ 16
... increased by the spring by which the rear end is made to descend , and with it the suspended striker , upon the bells , and at the same time suddenly elevating the front end of the lever , and imparting a vibratory movement to its ...
... increased by the spring by which the rear end is made to descend , and with it the suspended striker , upon the bells , and at the same time suddenly elevating the front end of the lever , and imparting a vibratory movement to its ...
Էջ 17
... increased by the exhaust steam in the chimney , for the purpose and in the manner substantially as described . " And I also claim in combination with the valve and the wire gauze , or the equivalents thereof , and the deflector over the ...
... increased by the exhaust steam in the chimney , for the purpose and in the manner substantially as described . " And I also claim in combination with the valve and the wire gauze , or the equivalents thereof , and the deflector over the ...
Էջ 29
... increasing amount of those crops ; for it will not be enough to provide the same amount of employ- ment as before ... increased numbers . The uneasiness which it is natural to feel under the circum- stances here described , has led to ...
... increasing amount of those crops ; for it will not be enough to provide the same amount of employ- ment as before ... increased numbers . The uneasiness which it is natural to feel under the circum- stances here described , has led to ...
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action angle apparatus applied arrangement attached axis bituminous blades blast blast furnace boiler carriage cast iron cent centre centrifugal force chord circuit claim therein coal combination condenser connected connexion construction Coulaine cubic curved cutters cylinder deflexion diameter distance effect electric telegraph electricity engine equal experiments feet flues force frame Franklin Institute furnace generatrix gutta percha heat Improvement increased indicator diagrams invention consists Journal length lever machine magnet manner mastic material means metal miles motion operation paddle passing patent pipe piston placed plane plate present pressure produced propeller proportion pump purpose rails railway revolutions per minute roadway rollers screw shaft side slide spring square inch steam steam engine steamers Stoves stroke substantially as described surface tangential angle telegraph temperature thickness tion tons tube valve velocity vertical vessel weight wheel wire wrought iron York