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 6-10 of 100
Page 58
... obtained shall cease . The letters patent are to be void unless £ 50 be paid at the end of three years from the date thereof , and £ 100 further at the end of seven years . Certificates of these payments are to be issued under the ...
... obtained shall cease . The letters patent are to be void unless £ 50 be paid at the end of three years from the date thereof , and £ 100 further at the end of seven years . Certificates of these payments are to be issued under the ...
Page 59
... obtain the seal within three months after his decease . Letters patent may be sealed as of the day of the date of ... obtained under this act . Registers . - The office in Chancery , where specifications are to be filed , is to keep a ...
... obtain the seal within three months after his decease . Letters patent may be sealed as of the day of the date of ... obtained under this act . Registers . - The office in Chancery , where specifications are to be filed , is to keep a ...
Page 60
... obtained in any foreign country before the date of letters patent for the United Kingdom , the British patent is to become void immediately upon the determination of the foreign patent , or where several foreign patents have been obtained ...
... obtained in any foreign country before the date of letters patent for the United Kingdom , the British patent is to become void immediately upon the determination of the foreign patent , or where several foreign patents have been obtained ...
Page 63
... obtained are stated below . The solution was effected by means of very dilute 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 ...
... obtained are stated below . The solution was effected by means of very dilute 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 ...
Page 64
... obtained are most easily read by candlelight . In daylight , the blue letters can be recognised on the yellow ground only by looking through the plate towards the middle of the window , or towards a sheet of paper fastened in that place ...
... obtained are most easily read by candlelight . In daylight , the blue letters can be recognised on the yellow ground only by looking through the plate towards the middle of the window , or towards a sheet of paper fastened in that place ...
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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 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 heating surface hour hydrochloric acid Improvement increase india rubber indicator diagrams invention consists Journal length letters patent lever locomotive machine machinery magnesia manner manufacture Mean effective pressure 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