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 47
In the iron thus obtained the crystals are not found , and the metal acquires a long and very tenacious fibre . I have not been able to ascertain the exact ratio of the tenacities of the purified and unpurified iron , but I have ...
In the iron thus obtained the crystals are not found , and the metal acquires a long and very tenacious fibre . I have not been able to ascertain the exact ratio of the tenacities of the purified and unpurified iron , but I have ...
Page 65
There was an excellent exhibition of Pattinson's important process for desilverizing that metal — a process which has been of such service to lead - mining generally , rendering many lead - mines workable with profit which must ...
There was an excellent exhibition of Pattinson's important process for desilverizing that metal — a process which has been of such service to lead - mining generally , rendering many lead - mines workable with profit which must ...
Page 92
... or any other metal for obtaining fire surface in the fire box , or any other part of a steam boiler , and at the same time making a secure connexion ( easily removed ) between the inner and outer plates of boiler , as substantially ...
... or any other metal for obtaining fire surface in the fire box , or any other part of a steam boiler , and at the same time making a secure connexion ( easily removed ) between the inner and outer plates of boiler , as substantially ...
Page 93
I also claim in connexion with the extension of the fire box into the body of the boiler , the introduction of metal or clay pipes , as shown in sheet 6 , figures 4 and 5 , and hereinbefore described , for the purpose of heating the ...
I also claim in connexion with the extension of the fire box into the body of the boiler , the introduction of metal or clay pipes , as shown in sheet 6 , figures 4 and 5 , and hereinbefore described , for the purpose of heating the ...
Page 105
“ The nature of our invention consists , first , in constructing the snath of metal in the tubular form , for the purpose of securing great durability , and facility of shaping it as desired , while it retains the required lightness and ...
“ The nature of our invention consists , first , in constructing the snath of metal in the tubular form , for the purpose of securing great durability , and facility of shaping it as desired , while it retains the required lightness and ...
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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