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] |
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Page 11
... effect of contracting considerably the flue area , and 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 ...
... effect of contracting considerably the flue area , and 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 ...
Page 14
... effect of heating the front end of an extended oven , and at the same time to keep up a circulation of heated air in and through the oven . " Claim .— “ What I claim as my invention , is the method of heating the front end of the ...
... effect of heating the front end of an extended oven , and at the same time to keep up a circulation of heated air in and through the oven . " Claim .— “ What I claim as my invention , is the method of heating the front end of the ...
Page 16
... effect of which is to concentrate the light in the ground or frosted glass , at the same time preventing objects behind the picture from being visible through the lighter or more transparent parts of the picture , and which ground or ...
... effect of which is to concentrate the light in the ground or frosted glass , at the same time preventing objects behind the picture from being visible through the lighter or more transparent parts of the picture , and which ground or ...
Page 41
... effect . But it is very possible that M. Vor- selmann de Heer may have experimented with bars thermo - electrically heterogeneous , a very excusable inadvertence , since the connexion be- tween the thermo - electric force and the ...
... effect . But it is very possible that M. Vor- selmann de Heer may have experimented with bars thermo - electrically heterogeneous , a very excusable inadvertence , since the connexion be- tween the thermo - electric force and the ...
Page 61
... effects of heat and the effects of expansion separately ; and proceeded to an investigation of the latter point ... effect was most striking . When nitrogen and oxygen bubbles were put into the balance , each at one atmosphere , the ...
... effects of heat and the effects of expansion separately ; and proceeded to an investigation of the latter point ... effect was most striking . When nitrogen and oxygen bubbles were put into the balance , each at one atmosphere , the ...
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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