{"@context":"http://iiif.io/api/presentation/2/context.json","@id":"https://edisondigital.rutgers.edu/iiif/2/LB007602B/manifest","@type":"sc:Manifest","label":"[LB007602B], Letter from Richard Nott Dyer to Zenas Fisk Wilber, June 28th, 1882","thumbnail":{"@id":"https://edisondigital.rutgers.edu/files/medium/LB007602B/db0694.jpg","@type":"dctypes:Image","format":"image/jpeg","width":1076,"height":878},"license":"https://creativecommons.org/publicdomain/zero/1.0/","attribution":"Provided by The Thomas A. Edison Papers at Rutgers University","related":{"@id":"https://edisondigital.rutgers.edu/document/LB007602B","format":"text/html"},"seeAlso":{"@id":"https://edisondigital.rutgers.edu/api/items/77092","format":"application/ld+json"},"metadata":[{"label":"Title","value":"[LB007602B], Letter from Richard Nott Dyer to Zenas Fisk Wilber, June 28th, 1882"},{"label":"Editor's Notes","value":"Since writing you on June 5th. in regard to [outamabia] regulations, it has been discovered that the patent of Maxim 238,543, June 8th. 1880, shows and electro magnet placed in a multiple arc circuit and [controlling circuit of another electro magnet which regulates generation. This patent is probably earlier than the [runs] by mr Edison of an electro magnet in multiple arc for regulating the machine: but mr Edison before that date regulated a lamp or lamps by a regulator controlled by an electro-magnet in multiple arc. Hence for the broadest claim in case 3[7]5 it might be advisable to cover the use of a device placed in a multiple arc circuit and affected the same as a lamp, for regulating a lamp or lamps, whether directly or through the machine. The word "device" or some similar broad expression should be used since a thermostatic device may be used in place of an electro-magnet and perhaps other devices. On the thermostatic device, I am now preparing the papers for a separate application. Another feature of importance is the closing of [line] circuits by the device in multiple arc, so as to give regulating mechanism movement in [off]site directions. This is not shown by Maxim. A more important feature however, is the centered electro magnet.##By reference to case 375 you will see that lever E is held against Spring lever g in a central position. In John Ott's case the other form of device for this purpose is shown and should be claimed specifically. That device consists of [two] springs like this [diagram shown]##If the lever is centered it does not [act] except upon a definite charge in electromotive force, and the flickering of the light which is caused by a too sensitive action of [the] magnetic [prevented.]"},{"label":"Author","value":"Dyer, Richard Nott"},{"label":"Recipient","value":"Wilber, Zenas Fisk"},{"label":"Mentioned","value":["Maxim, Hiram Stevens","Ott, John F"]},{"label":"Date","value":"1882-06-28"},{"label":"Type","value":"Letter"},{"label":"Subject","value":["Patent application","Dynamos and generators","Electrical distribution system"]},{"label":"Folder/Volume ID","value":"LB007-F"},{"label":"Microfilm ID","value":"80:695"},{"label":"Document ID","value":"LB007602B"},{"label":"URL","value":"https://edisondigital.rutgers.edu/document/LB007602B"},{"label":"Rights","value":"Thomas Edison National Historical Park"},{"label":"Publisher","value":"Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University"},{"label":"Timestamp","value":"28 June 1882"},{"label":"Has Version","value":"Archive.org Viewer, Microfilm Series Reel 80"}],"sequences":[{"@id":"https://edisondigital.rutgers.edu/iiif/2/LB007602B/sequence/normal","@type":"sc:Sequence","label":"Current Page Order","viewingDirection":"left-to-right","canvases":[{"@id":"https://edisondigital.rutgers.edu/iiif/2/LB007602B/canvas/p1","@type":"sc:Canvas","label":"1","thumbnail":{"@id":"https://edisondigital.rutgers.edu/files/medium/LB007602B/db0694.jpg","@type":"dctypes:Image","format":"image/jpeg","width":1076,"height":878},"width":1076,"height":878,"images":[{"@id":"https://edisondigital.rutgers.edu/iiif/2/LB007602B/annotation/p0001-image","@type":"oa:Annotation","motivation":"sc:painting","resource":{"@id":"https://edisondigital.rutgers.edu/iiif/2/256009/full/1076,878/0/default.jpg","@type":"dctypes:Image","format":"image/jpeg","width":1076,"height":878,"service":{"@context":"http://iiif.io/api/image/2/context.json","@id":"https://edisondigital.rutgers.edu/iiif/2/256009","profile":"http://iiif.io/api/image/2/level2.json"}},"on":"https://edisondigital.rutgers.edu/iiif/2/LB007602B/canvas/p1"}]},{"@id":"https://edisondigital.rutgers.edu/iiif/2/LB007602B/canvas/p2","@type":"sc:Canvas","label":"2","thumbnail":{"@id":"https://edisondigital.rutgers.edu/files/medium/LB007602B/db0695.jpg","@type":"dctypes:Image","format":"image/jpeg","width":1080,"height":878},"width":1080,"height":878,"images":[{"@id":"https://edisondigital.rutgers.edu/iiif/2/LB007602B/annotation/p0002-image","@type":"oa:Annotation","motivation":"sc:painting","resource":{"@id":"https://edisondigital.rutgers.edu/iiif/2/256010/full/1080,878/0/default.jpg","@type":"dctypes:Image","format":"image/jpeg","width":1080,"height":878,"service":{"@context":"http://iiif.io/api/image/2/context.json","@id":"https://edisondigital.rutgers.edu/iiif/2/256010","profile":"http://iiif.io/api/image/2/level2.json"}},"on":"https://edisondigital.rutgers.edu/iiif/2/LB007602B/canvas/p2"}]},{"@id":"https://edisondigital.rutgers.edu/iiif/2/LB007602B/canvas/p3","@type":"sc:Canvas","label":"3","thumbnail":{"@id":"https://edisondigital.rutgers.edu/files/medium/LB007602B/db0696.jpg","@type":"dctypes:Image","format":"image/jpeg","width":1082,"height":876},"width":1082,"height":876,"images":[{"@id":"https://edisondigital.rutgers.edu/iiif/2/LB007602B/annotation/p0003-image","@type":"oa:Annotation","motivation":"sc:painting","resource":{"@id":"https://edisondigital.rutgers.edu/iiif/2/256011/full/1082,876/0/default.jpg","@type":"dctypes:Image","format":"image/jpeg","width":1082,"height":876,"service":{"@context":"http://iiif.io/api/image/2/context.json","@id":"https://edisondigital.rutgers.edu/iiif/2/256011","profile":"http://iiif.io/api/image/2/level2.json"}},"on":"https://edisondigital.rutgers.edu/iiif/2/LB007602B/canvas/p3"}]}]}]}