[NM020ABM], Technical Note, Thomas Alva Edison, November 16th, 1886
https://edisondigital.rutgers.edu/document/NM020ABM
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Title
[NM020ABM], Technical Note, Thomas Alva Edison, November 16th, 1886
Editor's Notes
The object of this invention is to carbonize carbonizable filiments for Incandescent Lamps which shall have an even carbonization & not become distorted when heated electrically when exhausting the globe of the lamp and also to make a better & more homogenous filiment AA' are Carbon cylinders or boxes round or flat into which straight filiments are placed & then packed with powdered anthracite coal or other form of Carbon-- of deat conductivit or other material which will not be fused at a high heat such as corundum silicon etc. These boxes are rather small & contain only a dozen or so filiments The tubes are suspended by carbon or other infusible hooks & out of contact with each other so they a heated by air currents & radiation thus making an equal heat These tubes being suspended in a plumbago mould the mould in its turn is placed in another similar mould with air spaces; The outer mould recieves the flame & heats the inner mould mostly by convection of air currents & radiation thus the second mould receives an even heat Claime-- Carbonizing filiments by radiation & convection currents-- The double box-- No of small suspended cylinders boxes etc with sufficient space so they are heated by convection & radiation without conduction-- etc [drawings follow] 2nd item: "Seeley-- This is the new system only thing want to patent on this is, The use of an extra high tension main between the several stations so that in case of a break down on the main from the grand central or Steam station or in case of repair, the station can be supplied from 1 or more stations by means of these break down mains.-- Also means of throwing the system of Dynamos at the steam station in Multiple arc (3 wire) with any other system, where say 3 stations use the same volt lamps they can all be thrown on one set Dynamos & Engines during the day for decreased consumption
Author
Date
1886-11-16
Type
Subject
Folder/Volume ID
NM020-F
Microfilm ID
44:795
Document ID
NM020ABM
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University