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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1.–5. rezultāts no 100.
3. lappuse
... light , that the repair hands are profitably employed in the construction of new cars , by thus keeping them constantly in work , which could not otherwise be done . No additional number of hands has been employed expressly for construc ...
... light , that the repair hands are profitably employed in the construction of new cars , by thus keeping them constantly in work , which could not otherwise be done . No additional number of hands has been employed expressly for construc ...
16. lappuse
... 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 frosted glass also protects the picture ...
... 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 frosted glass also protects the picture ...
25. lappuse
... light for several hours before introducing it into the electrotyping apparatus . " Vol . XXI . - THIRD SERIES . - No . 1. — JANUARY , 1851 . 3 Claim .- " I do not claim to cover the American Patents which issued in December , 1850 . 25.
... light for several hours before introducing it into the electrotyping apparatus . " Vol . XXI . - THIRD SERIES . - No . 1. — JANUARY , 1851 . 3 Claim .- " I do not claim to cover the American Patents which issued in December , 1850 . 25.
26. lappuse
... light after being acted on by a halogen element , substantially for the purpose of preventing the adhesion of the deposit , as specified . " I claim the use of iodine in the electrotype process , in the manner herein subtantially set ...
... light after being acted on by a halogen element , substantially for the purpose of preventing the adhesion of the deposit , as specified . " I claim the use of iodine in the electrotype process , in the manner herein subtantially set ...
35. lappuse
... light by the clouds ; " 7th , Observation of the various optical phenomena produced by the clouds . " The apparatus placed at our disposal were : " 1st , Two syphon barometers , graduated on the glass , whose upper meniscus we were to ...
... light by the clouds ; " 7th , Observation of the various optical phenomena produced by the clouds . " The apparatus placed at our disposal were : " 1st , Two syphon barometers , graduated on the glass , whose upper meniscus we were 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