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 11-15 of 100
Page 127
... material to be used in warm cylinders , having nearly 1000 square feet of surface to be kept greased . Economy of Space . - We have now to consider the second advantage claimed , which is partially estimated on the reduction in amount ...
... material to be used in warm cylinders , having nearly 1000 square feet of surface to be kept greased . Economy of Space . - We have now to consider the second advantage claimed , which is partially estimated on the reduction in amount ...
Page 129
... material advantage to ocean steamers . As to river steamers , the difference of space and weight becomes even greater , as the amount of coal to be carried is trifling . We think the inference must be drawn from the foregoing , that ...
... material advantage to ocean steamers . As to river steamers , the difference of space and weight becomes even greater , as the amount of coal to be carried is trifling . We think the inference must be drawn from the foregoing , that ...
Page 156
... Mr. Lea , of London , mentioned a new material for lubrication that he was bringing into application ; it had been tried some years since by Mr. Ramsbottom , with very satisfactory results ; but further trials 156 Civil Engineering .
... Mr. Lea , of London , mentioned a new material for lubrication that he was bringing into application ; it had been tried some years since by Mr. Ramsbottom , with very satisfactory results ; but further trials 156 Civil Engineering .
Page 157
... materials ; it had an af- finity for the iron bearing , which prevented the displacement of the material from the rubbing surface . The manufacture of the material was not expensive , costing only 4d . per lb .; and when charged at 16d ...
... materials ; it had an af- finity for the iron bearing , which prevented the displacement of the material from the rubbing surface . The manufacture of the material was not expensive , costing only 4d . per lb .; and when charged at 16d ...
Page 158
... material of which they were made . Pipes of four inches diameter would probably be found the least sectional area that should be used for house drains , and nine inches for streets , and then not at a less gradient than one in sixty ...
... material of which they were made . Pipes of four inches diameter would probably be found the least sectional area that should be used for house drains , and nine inches for streets , and then not at a less gradient than one in sixty ...
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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