The Franklin Journal, and American Mechanics' Magazine1848 |
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Ergebnisse 1-5 von 100
Seite 21
... metal is most perfectly applied ) , and the pressure in one to be four pounds the square inch , and that of the other to be fifty , while the thickness of metal in each shall be in the exact ratio to the strain : thus , multi- ply the ...
... metal is most perfectly applied ) , and the pressure in one to be four pounds the square inch , and that of the other to be fifty , while the thickness of metal in each shall be in the exact ratio to the strain : thus , multi- ply the ...
Seite 52
... metal . I there- fore came to the conclusion that , in consequence of those parts over the characters being rigid , and the other parts elastic , a slight ine- quality of polish was produced on the different parts of the surface ; so ...
... metal . I there- fore came to the conclusion that , in consequence of those parts over the characters being rigid , and the other parts elastic , a slight ine- quality of polish was produced on the different parts of the surface ; so ...
Seite 56
... metal , should indicate , after some time , the same temperature as the thermometers surrounded by substances which radiate most ; and because the metallic surfaces , which were found to be covered with dew , were as cold as the glassy ...
... metal , should indicate , after some time , the same temperature as the thermometers surrounded by substances which radiate most ; and because the metallic surfaces , which were found to be covered with dew , were as cold as the glassy ...
Seite 61
... metal be heated in a furnace , or coal fire , one par 1of the bar may be in contact with glowing coal , another part in flame , a third in heated air , a fourth in contact with coal in a state of ignition , & c . ; consequently , the metal ...
... metal be heated in a furnace , or coal fire , one par 1of the bar may be in contact with glowing coal , another part in flame , a third in heated air , a fourth in contact with coal in a state of ignition , & c . ; consequently , the metal ...
Seite 64
... metal than any now in use . - 7 . This method is the best for casting pipes perpendicularly that has hitherto been employed . - 8 . The greatest recommendation of all is , the simplicity of the apparatus , which re- quires the ...
... metal than any now in use . - 7 . This method is the best for casting pipes perpendicularly that has hitherto been employed . - 8 . The greatest recommendation of all is , the simplicity of the apparatus , which re- quires the ...
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acid acrolein action apparatus applied arranged atmospheric attached boiler braces bridge carriage cast iron chamber claim Claim."What coal combination connected connexion constructed copper cutters cylinder deposited desire to secure diameter dilatation discharge draw rollers effect elastic force engine experiments feet flue frame FRANKLIN INSTITUTE frustrum furnace glass gutta percha heat Improvement inches invention consists length letters patent lever lode machine magnet manner described manufacture means ment mercury metal method miles mode motion operation oven oxide pass patentee says Pennsylvania Philadelphia piece piezometer pipe piston placed plate Premium present pressure produced pump purpose quantity railroad railway road rollers salt screw secure by letters shaft side sliding spring steam stove substance substantially as described sulphuric sulphuric acid surface temperature thermometer tion tube U. S. Patent Office upper valve vapor vertical vessel weight wheel whole wire York