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 76
Page 55
... color is obtained , according to the length of the im- mersion . Indigo is also of a volatile nature , and this is in fact one of its cha- racteristic properties . It occurred to me , therefore , to turn this property to account , by ...
... color is obtained , according to the length of the im- mersion . Indigo is also of a volatile nature , and this is in fact one of its cha- racteristic properties . It occurred to me , therefore , to turn this property to account , by ...
Page 56
... color of the indigo , without in the least injuring the other true colors fixed on the stuff , which , on the contrary , become fuller and brighter . The web loses con- siderably in length in the operation , but the loss of breadth is ...
... color of the indigo , without in the least injuring the other true colors fixed on the stuff , which , on the contrary , become fuller and brighter . The web loses con- siderably in length in the operation , but the loss of breadth is ...
Page 66
... - rial for dyeing silk of a fine clear yellow color , without the aid of a mordant , was put into my hands for examination . * From the London Chemical Gazette , July 15th , 1852 . 66 Mechanics , Physics , and Chemistry .
... - rial for dyeing silk of a fine clear yellow color , without the aid of a mordant , was put into my hands for examination . * From the London Chemical Gazette , July 15th , 1852 . 66 Mechanics , Physics , and Chemistry .
Page 67
... color is much faster . This substance proved , on chemical examination , to be the picric , nitropicric or carbazotic acid in an impure state . As the parties for whom the investigation was undertaken , wished to be informed as to a ...
... color is much faster . This substance proved , on chemical examination , to be the picric , nitropicric or carbazotic acid in an impure state . As the parties for whom the investigation was undertaken , wished to be informed as to a ...
Page 69
... color . The wool , well- washed and lukewarm , is then put in , and the whole heated to boil- ing . The wool immediately acquires a dark green color , and by boiling , after the addition of the remainder of the acid , becomes of a fine ...
... color . The wool , well- washed and lukewarm , is then put in , and the whole heated to boil- ing . The wool immediately acquires a dark green color , and by boiling , after the addition of the remainder of the acid , becomes of a fine ...
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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