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Sir John Ambrose Fleming

Lancaster 29.November.1849- Sidmouth (Devonshire) 18.April.1945


   

 

DOCUMENTS: 


     

1884 Letter to Edison on September 19, 1884
 
1899Improvements in Carbons for Electric Arc Lamps Patent GB189911506 2 June 1899
    
1900Improvements in apparatus for the production of electrical oscillations 22 Oct., 1900 patent n. 18865
 
Improvements in apparatus for signalling by wireless telegraphy 14 Nov., 1900 patent n. 20576
 
Improvements in apparatus for wireless telegraphy 05 Dec., 1900 Patent n. 22126
   

  Improvements in portable apparatus for wireless telegraphy for military and other purposes 18 Dec., 1900 Patent n. 23163
 
1901Improvements in apparatus for wireless telegraphy 18 Frb., 1901 patent n. 3481
 
Improvements in methods for producing electric waves 05 Dec., 1901  Patent n. 24825
   

1902 Letter to Marconi May 21, 1902
 


Marconi letter to Fleming 28 1902
 


Letter to Marconi, 02 October 1902

   

1903 Note on a form magnetic detector for hertzian waves adapted for quantitative work  - 1903-

      

1904 Original document     Improvements in English Patent for Detecting Instruments and Electric Measuring Alternating Currents.  Presented the 11 novembre1904  (1) pdf  
Improvements in instruments for the measurement of wave lenghts in wireless telegraphy 19 Dec., 1904 patent n. 27683


    

1904  Letter to Marconi, 30 November 1904
   

1905 Instrument for converting alternate electric currents into continuous currents Patent 803684 in November 1905, 07 of Fleming presented in the USA
 
1908 Improvements in instruments for detecting electric oscillations 25 June 1908 Patent n. 13518


    

1910 US Patent 954619 Instrument for detecting electric oscillations of 12 April 1910 to Fleming
 
1910Improvements in transmitting apparatus for wireless telegraphy 07 Oct., 1910 Patent n. 23242


  

1914 Letter to Marconi, 18 February 1914

      

1921 June 23, 1921 Congratulations to Armtrong on winning the first case on the super reaction
 

1931 Les origines de l'électrotechnique. - Ce que l'industrie doit à la science. L'unité des phénomènes naturels, par Sir Ambrose FLEMING, F.R.S  1931  (estratto da:  A propos du centenaire des découvertes de Michel Faraday / [Société française des électriciens])


     



Collection memories I 


Notes on a magnetic detector of electric waves on June 10, 1902


A Note on a Form of Magnetic Detector for Hertzian Waves, adapted for Quantitative work  on February 11, 1903


Magnetic detector for hertzian wawes, adapted for quantitative work Fleming on February 11, 1903

          



 


Collection memories  II 


February 6, 1897 On magneto-electric induction in liquid and gases-Part. 1   Proceedings of the Royal society of London- 


December 16,1889 On electric discharge between electrodes at differents temperatures ....


On the changes produced in magnetized iron and steels by cooling to the temperature of liquid air. By James Dewar and J.A.Fleming April 25, 1896


Note on dielectric constant of ice and alcohol at very low temperatures - By Dewar-Fleming   January 26, 1897


On the magnetic permeability of iron at low temperatures. Dewar-Fleming 1897


On the dielectric constant of certain frozen-electrolytes at and above the temperature of liquid air. Fleming-Dewar May 6, 1897


A note on some further determination of the dielectric constant of organic bodies and electrolytes at very low temperatures.-Dewar-Fleming  October 28, 1897


On the magnetic susceptibility of liquid oxygen. Dewar-Fleming 9 maggio 1898


Conversion of electric oscillation in THE continuous currents- Fleming January 24, 1905


On the properties of magnetic as affected by temperature -Fleming March 20, 1914


Revue générale des sciences pures et appliquées -1916-Les idées du professeur Fleming sur l'organisation de la recherche scientiphique

    


      


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FLEMING ON THE THERMIONIC VALVE.mov 






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