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 15
... space between the walls to cause an upward current , which is connected with the warm air pipes leading to the apartments , by means of which a constant and pure supply of air is insured , and the heat greatly economised . " 31. For an ...
... space between the walls to cause an upward current , which is connected with the warm air pipes leading to the apartments , by means of which a constant and pure supply of air is insured , and the heat greatly economised . " 31. For an ...
Page 31
... space of between 4 and 5 inches , were two angle iron stays of about 3 inches wide , and 12 inches long , fastened ... space for the escape of steam from it , by the box above the valve being nearly filled with the lead weight on the ...
... space of between 4 and 5 inches , were two angle iron stays of about 3 inches wide , and 12 inches long , fastened ... space for the escape of steam from it , by the box above the valve being nearly filled with the lead weight on the ...
Page 36
... space which the garden of the observatory afforded for the operation . " One of the barometers was broken and left behind . The same acci- dent happened to the thermometer with blackened bulb . " We here transcribe the notes which we ...
... space which the garden of the observatory afforded for the operation . " One of the barometers was broken and left behind . The same acci- dent happened to the thermometer with blackened bulb . " We here transcribe the notes which we ...
Page 37
... space shows itself , and allows the position of the sun to be vaguely seen . A " After again throwing over some ballast , the balloon resumes its ascent . " 4h . 25m . Barometer oscillates from 347-75 mm . to 367-04 ; thermometer - 10 ...
... space shows itself , and allows the position of the sun to be vaguely seen . A " After again throwing over some ballast , the balloon resumes its ascent . " 4h . 25m . Barometer oscillates from 347-75 mm . to 367-04 ; thermometer - 10 ...
Page 43
... space occupied by steam machine- ry on board ship , and its minimum weight , compatible with strength and efficiency , must be that which is to be desired . All modern improvement has tended to this end ; indeed , diminished weight of ...
... space occupied by steam machine- ry on board ship , and its minimum weight , compatible with strength and efficiency , must be that which is to be desired . All modern improvement has tended to this end ; indeed , diminished weight of ...
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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