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
... square feet ( in the year 1842 ) to 987 square feet , ( in the year 1846 , ) the blast - pipe has not been in the slightest degree enlarged , but on the contrary , in the latter case has been reduced in area in the proportion of 12 to 8 ...
... square feet ( in the year 1842 ) to 987 square feet , ( in the year 1846 , ) the blast - pipe has not been in the slightest degree enlarged , but on the contrary , in the latter case has been reduced in area in the proportion of 12 to 8 ...
Page 11
... square inch , at a moderate velocity of about 30 miles an hour . Mr. McConnell observed , that as a certain quantity of heated air had to be conveyed from the fire- box to the chimney , and a certain area of heating surface was also ...
... square inch , at a moderate velocity of about 30 miles an hour . Mr. McConnell observed , that as a certain quantity of heated air had to be conveyed from the fire- box to the chimney , and a certain area of heating surface was also ...
Page 26
... Square , Pennsylvania , December 10 . " The nature of our improvement consists in making the drill tube of a peculiar form , adapting the front for the reception of adjusting and changeable points ; having the heel open to prevent ...
... Square , Pennsylvania , December 10 . " The nature of our improvement consists in making the drill tube of a peculiar form , adapting the front for the reception of adjusting and changeable points ; having the heel open to prevent ...
Page 32
... square inch . Area of safety valve , But at the time of the explosion the weight on the lever was not at its maximum , but giving a pressure of 15.15 lbs . per square inch , and it appears in the evidence before the coroner , that the ...
... square inch . Area of safety valve , But at the time of the explosion the weight on the lever was not at its maximum , but giving a pressure of 15.15 lbs . per square inch , and it appears in the evidence before the coroner , that the ...
Page 54
... square breaks , such as rivets present by the very common habit of hammering too long ; one end of the stay rod is torn off , and in the flattened part of the other end remains part of a broken rivet . For the Journal of the Franklin ...
... square breaks , such as rivets present by the very common habit of hammering too long ; one end of the stay rod is torn off , and in the flattened part of the other end remains part of a broken rivet . For the Journal of the Franklin ...
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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