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.
10. lappuse
... matter to determine what length of tubes was most advantageous for use in proportion to the area of the fire - grate . Mr. C. Cowper was not aware whether there was any authority re- specting the proportionate heating power of the tubes ...
... matter to determine what length of tubes was most advantageous for use in proportion to the area of the fire - grate . Mr. C. Cowper was not aware whether there was any authority re- specting the proportionate heating power of the tubes ...
29. lappuse
... matter of grave importance how any con- tinued failure of cotton crops is to be met ; and not only so , but also , how a substitute is to be found for the hitherto constantly increasing amount of those crops ; for it will not be enough ...
... matter of grave importance how any con- tinued failure of cotton crops is to be met ; and not only so , but also , how a substitute is to be found for the hitherto constantly increasing amount of those crops ; for it will not be enough ...
34. lappuse
... matter , until the public have been startled by some very glaring case , when we may probably have to report on the grand discovery that will then be made of the ineffi- ciency of the present system . We should add that at the time of ...
... matter , until the public have been startled by some very glaring case , when we may probably have to report on the grand discovery that will then be made of the ineffi- ciency of the present system . We should add that at the time of ...
42. lappuse
... matter of grave import for the consideration of those whose pecuniary interests are connected with the Cunard line of steamers ; it is still more of importance to another great and flourishing Company 42 Mechanics , Physics , and Chemistry ...
... matter of grave import for the consideration of those whose pecuniary interests are connected with the Cunard line of steamers ; it is still more of importance to another great and flourishing Company 42 Mechanics , Physics , and Chemistry ...
47. lappuse
... matter here discussed . You , Sir , know I have no trade - interest in what I write - I am not “ look- ing for a job " -but do not wish to see the day when our pre - eminence as engineers can be called into question . It would be a ...
... matter here discussed . You , Sir , know I have no trade - interest in what I write - I am not “ look- ing for a job " -but do not wish to see the day when our pre - eminence as engineers can be called into question . It would be a ...
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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