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[D8637ZAI], Memorandum, George E Simpson, 1886

Title: [D8637ZAI], Memorandum, George E Simpson, 1886
Editor's Notes: [Lengthy discussion (10 pgs) of series motor used in connection with Van D[e Poele]. arrangement as an interference discussed in patent office letter (date missing); includes drawings]; fig. 2 shows use of machine as generator propelled by momentum of car; to use machine as a generator Van D. had to change direction of current in armature to coincide with field current. [Attachment: Notes on arrangement of motor and generator] "It is hard to see what bearing the Hopkinson method of dynamo testing has on Claim 8"; Claim 8 (Leonard) is for a method of changing from motor to generator or vice versa by reversing field magnetism; Hopkinson's article doesn't mention this. [Attachment 2: provides instructions on connecting two dynamos to determine the efficiency of machine as converter of energy as either a generator or motor, with drawing and stats.]
Author: Simpson, George E
Mentioned: Hopkinson, John; Van Depoele, Charles Joseph; Sprague, Frank Julian
Date: 1886-00-00
Type: Memorandum
Subject: Patent application; Electric traction; Motors
Folder ID: D8637-F
Microfilm ID: 79:1115
Document ID: D8637ZAI
URL: https://edisondigital.rutgers.edu/document/D8637ZAI
Rights: Thomas Edison National Historical Park
Publisher: Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
Has Version: Archive.org Viewer, Microfilm Series Reel 79

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