Magnetical Investigations, Volume 2Longman, Orme, Brown, Green, and Longmans, 1843 |
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Página 99
... grains . The quality and temper of these plates were in general very equable ; the deviating power on the compass , at one length distance , being , in the weakest , about 15o , and , in the strongest , 18 ° 30 ' , and the mean power of ...
... grains . The quality and temper of these plates were in general very equable ; the deviating power on the compass , at one length distance , being , in the weakest , about 15o , and , in the strongest , 18 ° 30 ' , and the mean power of ...
Página 101
... grains , or 6 · 258 pounds , the mean weight . The modes of magnetising the plates and bars , and of determining their respective powers having been described in Part I. Chapters II . and III , —we are prepared for the consideration of ...
... grains , or 6 · 258 pounds , the mean weight . The modes of magnetising the plates and bars , and of determining their respective powers having been described in Part I. Chapters II . and III , —we are prepared for the consideration of ...
Página 135
... grains . These were 24 in number , consisting of a selection , out of the original series , of the weaker plates , or those of an inferior degree of retentiveness . Their degree of hardness was , I considered , that of a low spring ...
... grains . These were 24 in number , consisting of a selection , out of the original series , of the weaker plates , or those of an inferior degree of retentiveness . Their degree of hardness was , I considered , that of a low spring ...
Página 149
... Grains Original tempered state . Reduced in the middle Reduced again and cooled gradually . Temper T. and quenched . Maxi- mum After the Test Bar . Maxi- mum Maxi- After the After the mum Test Bar . Test Bar . Power . Power . Power . I ...
... Grains Original tempered state . Reduced in the middle Reduced again and cooled gradually . Temper T. and quenched . Maxi- mum After the Test Bar . Maxi- mum Maxi- After the After the mum Test Bar . Test Bar . Power . Power . Power . I ...
Página 151
... Grains Original tempered state . Reduced again and cooled gradually . Reduced in the middle Temper T. and quenched . Maxi- Maxi- Maxi- mum After the Test Bar . mum After the Test Bar . After the mum Test Bar . Power . Power . Power . I ...
... Grains Original tempered state . Reduced again and cooled gradually . Reduced in the middle Temper T. and quenched . Maxi- Maxi- Maxi- mum After the Test Bar . mum After the Test Bar . After the mum Test Bar . Power . Power . Power . I ...
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Palavras e frases frequentes
7.5 inch plates Average Weight bars or plates betwixt blister steel Bradford iron busks cast iron chapter cloth column combinations of magnetised compared comparison compass needles compound magnets considerable construction corresponding curve degree of hardness denomination determined deviating power diagram different lengths dimensions directive powers Effects of Annealing employed exhibited experiments extent foreign iron gain hard cast steel hard plates hardened heat hoop-L horse-shoe form inches in length inquiry investigation J. C. LOUDON linseed oil magnetic capacity magnetic energy magnetical powers magnets of different Mean Deviation mean power method of deviations method of torsion obtained pairs plates or bars pound mass Power in Combination powers of magnets proportional powers ratio reduced relative directive relative powers respective SECT separately shewn shews similar single bar six plates six-inch steel from Bradford Table tangent temperature tempered plates Tested thickness thin plates tion various vols whilst
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