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 7
... surface as those built about eight or ten years ago , and consequently when per- forming a proportionately increased amount of duty , they require from two to three times the quantity of air forcing through the fire in the same time ...
... surface as those built about eight or ten years ago , and consequently when per- forming a proportionately increased amount of duty , they require from two to three times the quantity of air forcing through the fire in the same time ...
Page 8
... surface of 987 feet , carrying 147 tubes of 12 inch external diameter and 13 ft . 10 in . long , the author found that the latter force was at all velocities three times as great as the former ; or in other words , that 66 per cent . of ...
... surface of 987 feet , carrying 147 tubes of 12 inch external diameter and 13 ft . 10 in . long , the author found that the latter force was at all velocities three times as great as the former ; or in other words , that 66 per cent . of ...
Page 9
of surface as that of the tubes ; and independent of this authority , loco- motive engineers are generally agreed that the great bulk of the steam generated in a locomotive boiler is formed upon the surface of the cop- per fire - box ...
of surface as that of the tubes ; and independent of this authority , loco- motive engineers are generally agreed that the great bulk of the steam generated in a locomotive boiler is formed upon the surface of the cop- per fire - box ...
Page 10
... surface from which the steam had to rise was the entire surface of the fire - box and tubes , and all the steam had to pass through the two openings into the steam - chamber , and it appeared to him the water would be carried up there ...
... surface from which the steam had to rise was the entire surface of the fire - box and tubes , and all the steam had to pass through the two openings into the steam - chamber , and it appeared to him the water would be carried up there ...
Page 27
... surface of the plank or timber , that the planing cutters may with facility produce an extra smooth surface , and be cleared of timber or slab by the clearing cutters , as set forth ; —the attachment of the saw - blade to the wheel ...
... surface of the plank or timber , that the planing cutters may with facility produce an extra smooth surface , and be cleared of timber or slab by the clearing cutters , as set forth ; —the attachment of the saw - blade to the wheel ...
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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