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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... stroke . 4th , That though the exhaust takes place earlier for every increase of expansion , it does not in any case take place within the first half of the stroke . For mid - gear it occurs in fact at 54 per cent . of the stroke ; and ...
... stroke . 4th , That though the exhaust takes place earlier for every increase of expansion , it does not in any case take place within the first half of the stroke . For mid - gear it occurs in fact at 54 per cent . of the stroke ; and ...
Page 1
stroke , whence it continues to be exhausted till the point F in the return stroke , where the exhaust port is closed . Now , the exhaust line , D E , shows that nearly all the period of exhaust for the steam stroke is em- ployed for ...
stroke , whence it continues to be exhausted till the point F in the return stroke , where the exhaust port is closed . Now , the exhaust line , D E , shows that nearly all the period of exhaust for the steam stroke is em- ployed for ...
Page 2
... stroke . It plainly appears , there- fore , that with the existing arrangements of locomotives , any attempts to eke ... stroke . This shaded area , D , amounts exactly to a mean loss upon the whole stroke of one pound per square inch ...
... stroke . It plainly appears , there- fore , that with the existing arrangements of locomotives , any attempts to eke ... stroke . This shaded area , D , amounts exactly to a mean loss upon the whole stroke of one pound per square inch ...
Page 3
... stroke would be 6.24 0.275.97 inches of water . Per Inch . Now the positive mean pressure during the steam stroke , as indicated , is 40.9 lbs . And the mean resistance by compression is ' Thus the effective mean pressure is . 66 11.5 ...
... stroke would be 6.24 0.275.97 inches of water . Per Inch . Now the positive mean pressure during the steam stroke , as indicated , is 40.9 lbs . And the mean resistance by compression is ' Thus the effective mean pressure is . 66 11.5 ...
Page 4
... stroke . How- ever , the area of blast - orifice rules the back exhaust pressure ; and , when the cylinder is duly proportioned to the boiler , it is quite practicable , by a few modifications in detail , still further to increase the ...
... stroke . How- ever , the area of blast - orifice rules the back exhaust pressure ; and , when the cylinder is duly proportioned to the boiler , it is quite practicable , by a few modifications in detail , still further to increase the ...
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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