Annual of scientific discovery. 1855Gould and Lincoln, 1855 |
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Pagina 63
... covering adheres in consequence of a polarized condition of the par- ticles of the iron . If the iron were absolutely ... covered with copper , and this new surface unites to the metal in a fluid state , precisely as a mass of copper ...
... covering adheres in consequence of a polarized condition of the par- ticles of the iron . If the iron were absolutely ... covered with copper , and this new surface unites to the metal in a fluid state , precisely as a mass of copper ...
Pagina 64
... covered spikes at the pores in the copper dissolved with the same rapidity as nail - rod does , the exposed surface of spikes would there- fore require 304 times as many days for destruction in this way , as iron ones would . Under any ...
... covered spikes at the pores in the copper dissolved with the same rapidity as nail - rod does , the exposed surface of spikes would there- fore require 304 times as many days for destruction in this way , as iron ones would . Under any ...
Pagina 67
... covered from the atmosphere , and melted in a temperature of about 1,500 ° Fahrenheit , which temperature is maintained for three hours . The metal is then poured into moulds . Other carbonaceous matter may be substi- tuted for charcoal ...
... covered from the atmosphere , and melted in a temperature of about 1,500 ° Fahrenheit , which temperature is maintained for three hours . The metal is then poured into moulds . Other carbonaceous matter may be substi- tuted for charcoal ...
Pagina 68
... covering the iron with a thin coating of copper , or other metal having a greater affinity for tin than iron has ; but in order that this result should be satisfactorily attained , it is necessary to polish and pickle the pins before ...
... covering the iron with a thin coating of copper , or other metal having a greater affinity for tin than iron has ; but in order that this result should be satisfactorily attained , it is necessary to polish and pickle the pins before ...
Pagina 72
... covered : for if the back end , or the sides of a furnace were left uncovered , the air would pass through them instead of passing through the air - distributors , as that passage offered the hottest and shortest route to the chimney ...
... covered : for if the back end , or the sides of a furnace were left uncovered , the air would pass through them instead of passing through the air - distributors , as that passage offered the hottest and shortest route to the chimney ...
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