Journal of the Franklin InstituteVols. 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 26
... rows of stitches from being produced in helical lines , and the evil consequences resulting to the fabric therefrom . ... and also their connexion with the mechanism for producing an equal and simultaneous rotation of these frames ...
... rows of stitches from being produced in helical lines , and the evil consequences resulting to the fabric therefrom . ... and also their connexion with the mechanism for producing an equal and simultaneous rotation of these frames ...
Page 56
... them with the fibres of the stuff , and thus produce a change in the physical constitution of the indigo . ... with the sides of the vessel , and also to absorb the moisture which is produced at the first introduction of the steam .
... them with the fibres of the stuff , and thus produce a change in the physical constitution of the indigo . ... with the sides of the vessel , and also to absorb the moisture which is produced at the first introduction of the steam .
Page 66
The mode of smelting iron consists in mixing the ore with lime and coal ; the former producing a slay or glass with the impurities of the ... three tons now suffice , and the amount produced in the same time is nearly sixty per cent .
The mode of smelting iron consists in mixing the ore with lime and coal ; the former producing a slay or glass with the impurities of the ... three tons now suffice , and the amount produced in the same time is nearly sixty per cent .
Page 67
... of a small quantity of brown resinous matter ; and on the addition of a little tartaric acid , produced a fine clear yellow on silk by its being immersed in it for a short time ; if a mordant be used , the color is much faster .
... of a small quantity of brown resinous matter ; and on the addition of a little tartaric acid , produced a fine clear yellow on silk by its being immersed in it for a short time ; if a mordant be used , the color is much faster .
Page 69
The method at present in use for the production of “ bleu de France " on wool , consists in boiling the wool in a bath containing ferridcyanide of potassium , an acid and chloride of tin , until the pure blue color is produced .
The method at present in use for the production of “ bleu de France " on wool , consists in boiling the wool in a bath containing ferridcyanide of potassium , an acid and chloride of tin , until the pure blue color is produced .
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