[NM016ABE], Technical Note, Thomas Alva Edison, May 20th, 1881


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[NM016ABE], Technical Note, Thomas Alva Edison, May 20th, 1881

Editor's Notes

1st image: fixtures. 2nd image: very nice illustration of disk dynamo. 3rd image: junction boxes, meters, fixtures. 4th image: lamp design: "Long bulb so it can be cut off & used many times" 5th image: bar armature sketch using concentric shells to connect to commutator. 6th image: armature sketches: "This way on reg machine for connecting bars by rings instead of plates" and "disc principle applied to reg made bands in middle--but only 1 commutator" 7th image: "Case No. 324 Using Gas pipes in House only" 8th image: case 325: "Moulded in polished mould slight taper Heat [---] Temp not enough to affect [---]" Uses rubber. 9th image: case 322: for lamp: "platina seal soldering two platinum rings together= Taken apart by heat or acid (nitric acid)"



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Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
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