. Collection of United States patents granted to Thomas A. Edison, 1869-1884 . N. PETERS. Photo-Lithographer, Washington. D. C. United States Patent Office^ THOMAS A. EDISON, OF MBNLO PAEK, NEW FOR DYNAMO-ELECTR!C MACHINES. SPECIFICATION forming part of Letters Patent No. 264,661, dated September 19, 1882. Application filoil August 7,1882. (No model.) To all ivhom it may concern: Be it known that I, Thomas A. Edison, ofMenlo Park, in the county of Middlesex andState of New Jersey,haveiuvented anew and5 useful Improvement in Regulating the Gener-ative Capacity of Dynamo or Magn
. Collection of United States patents granted to Thomas A. Edison, 1869-1884 . N. PETERS. Photo-Lithographer, Washington. D. C. United States Patent Office^ THOMAS A. EDISON, OF MBNLO PAEK, NEW FOR DYNAMO-ELECTR!C MACHINES. SPECIFICATION forming part of Letters Patent No. 264,661, dated September 19, 1882. Application filoil August 7,1882. (No model.) To all ivhom it may concern: Be it known that I, Thomas A. Edison, ofMenlo Park, in the county of Middlesex andState of New Jersey,haveiuvented anew and5 useful Improvement in Regulating the Gener-ative Capacity of Dynamo or Magneto Elec-tric Machines, (Case No. 399;) and I do herebydeclare that the followiug is a full and exactdescription of the same, reference being badro to the accompanying drawings, and to the let-ters of reference marked thereon. The object of tbis invention is to producenew and efficient means foi varying tbe cur-rent euergizing the field-magnet of a dynamo15 or magneto electric machine supplying a mul-tiple - arc system of electric distribution forthe purpose of regulating t
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