Journal of the Franklin InstituteFranklin Institute, 1853 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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Results 1-5 of 38
Page 31
... nitric acid , spec . grav . 1.33 . This addition produces an effervescence due to the disengagement of nitrous acid . When all the acid Liquid and Unchangeable Glue . 31.
... nitric acid , spec . grav . 1.33 . This addition produces an effervescence due to the disengagement of nitrous acid . When all the acid Liquid and Unchangeable Glue . 31.
Page 63
... nitric acid , and the portion thus dissolved amounted to 80-16 per cent . of the total weight of the grains , and contained the following substances calculated in the form of oxides : - Silica 0-918 Phosphoric acid 0.500 Nickel ( and ...
... nitric acid , and the portion thus dissolved amounted to 80-16 per cent . of the total weight of the grains , and contained the following substances calculated in the form of oxides : - Silica 0-918 Phosphoric acid 0.500 Nickel ( and ...
Page 67
... nitric acid upon the resins of Xanthorrhæa hastilis and X. arborea afford an excellent product for this purpose . These gums are known in commerce , the first as gum- flavum , or yellow gum , and gum - acaroides , and that from the ...
... nitric acid upon the resins of Xanthorrhæa hastilis and X. arborea afford an excellent product for this purpose . These gums are known in commerce , the first as gum- flavum , or yellow gum , and gum - acaroides , and that from the ...
Page 69
... acid and chloride of tin , until the pure blue color is produced . In the course of this operation , much cyanogen ... nitric acid ) , equal in weight to half or three - fourths of the ferridcyanide of potassium employed , pro ...
... acid and chloride of tin , until the pure blue color is produced . In the course of this operation , much cyanogen ... nitric acid ) , equal in weight to half or three - fourths of the ferridcyanide of potassium employed , pro ...
Page 159
... nitric acid or liquid within it , through such part and into the liquid surrounding the cell , the remain- der of the cell being made by glazing or other means impervious to the passage of elec- tricity and acid or liquid through it ...
... nitric acid or liquid within it , through such part and into the liquid surrounding the cell , the remain- der of the cell being made by glazing or other means impervious to the passage of elec- tricity and acid or liquid through it ...
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acid alumina apparatus applied arrangement Assignor axle beam blast boiler carbon carbonic acid cast iron cause cent centre centum chamber Claim.-"What I claim coal colors combination condensation connexion construction cutter cylinder diameter effect engine equivalent evaporated experiments feet fire box flues frame Franklin Institute furnace fusel oil gases glass heating surface hour hydrochloric acid Improvement increase india rubber indicator diagrams invention consists Journal length letters patent lever locomotive machine machinery manner manufacture means mechanical metal miles minute mode motion mould nitric acid obtained operation oxide pass patent Pennsylvania Philadelphia pipe piston pitch placed plate portion pounds present pressure produced proportion purpose quantity railway rollers screw shaft side silica slide speed spring square inch steam Stove stroke substantially as described temperature tion train tubes valve vertical vessel weight wheel wrought iron York