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 33
The boilers are placed in pairs back to back , with one smoke chimney in common ; each pair has its own fire room . The forward and after pair are alike , except in breadth and number of tubes ; each forward boiler being 14 feet broad ...
The boilers are placed in pairs back to back , with one smoke chimney in common ; each pair has its own fire room . The forward and after pair are alike , except in breadth and number of tubes ; each forward boiler being 14 feet broad ...
Page 36
Average steam pressure in boiler per sq . in . above atmosphere in pounds . Average number of double strokes of piston made per minute . Total number of double strokes of piston made ( by counter . ) * Time — Hours and minutes .
Average steam pressure in boiler per sq . in . above atmosphere in pounds . Average number of double strokes of piston made per minute . Total number of double strokes of piston made ( by counter . ) * Time — Hours and minutes .
Page 41
... was Stillman & Allen's ; it was adjustable , and frequently changed within short limits , as circumstances of weather , quality of fuel , & c . , required ; the object being to run with a wide throttle and maximum boiler pressure .
... was Stillman & Allen's ; it was adjustable , and frequently changed within short limits , as circumstances of weather , quality of fuel , & c . , required ; the object being to run with a wide throttle and maximum boiler pressure .
Page 42
the Welch coal , with the same point of cutting off , and the same difference of two pounds between the initial cylinder and boiler pressure , and making the necessary alterations for the different total and sensible heats of the ...
the Welch coal , with the same point of cutting off , and the same difference of two pounds between the initial cylinder and boiler pressure , and making the necessary alterations for the different total and sensible heats of the ...
Page 78
... the least loss was observed to take place with the least degree of expansion , and when the consumption of steam from the boiler is going on at the greatest rate , as we find on referring to the per centages of admission ; which is ...
... the least loss was observed to take place with the least degree of expansion , and when the consumption of steam from the boiler is going on at the greatest rate , as we find on referring to the per centages of admission ; which is ...
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acid action amount apparatus appears applied arrangement attached boiler carbon carried cast cause cent centre chamber claim closed coal colors combination connected consists construction containing cylinder described diameter direction distance effect employed engine equal experiments feet fire flues force frame furnace give given greater heat hour Improvement inches increase Institute invention iron Journal latter lead length less light lower machine manner manufacture material means mechanical metal method miles minute motion moved nature object observed obtained operation oxide pass patent pipe piston placed plate portion position pounds practical present pressure produced proportion quantity railway screw separate shown side slide space specified speed spring square steam stroke substantially surface taken tion train tubes turning valve vessel weight wheel whole York