[N319127], Technical Note, Thomas Alva Edison, April 16th, 1886


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[N319127], Technical Note, Thomas Alva Edison, April 16th, 1886

Editor's Notes

[paired entry; see N317199] p. 127 drawing "Archimedes Screw to propel steamer"; pp. 129-33 misc sketches; p. 135 "Mfr Silk-- Glue mixed with Bichromate Potash in proper portion enclosed Hydrocarbon (dawing) drawn out into fine filiment then disolved in a solvent of the Hydrocarbon & resultant Bichmzd glue which is insoluble exposed to sunj to render insoluble"; p. 137 "Mfr Silk-- Bases-- Collodion-- Cupric Amn paper Gutta-- Rubber disolvedin Benzine or Bisulphide-- Rubber in Benzol mixed with as much Rosin & other Hydrocarbons (expmt) as it will take & still lock resultant together & not be brittle-- Balata & also with Hydrocarbons-- with Rubber etc Exterior could be glue, Licorice, Molasses Candy-- a fibre of various lengths could be made by working molasses candy over & over by putting & using Rubber solution or Balata & Rosin Compounds disolving off in water"; p. 139 "Seperation Butter from Milk (drawing) Milk forced in very fine stream at great velocity against an exceedingly fine point surface breaking globule This moves down angle board slowly while milk flows quickly"; p. 141 Seperation Cream from Milk Try Graham Dialysis-- use also electricity through porous diaphms. Use porous diaphms various thicknesses & substances & use vacuum underneath as air pressure on one reciprocation to free the pores of globules the next reciprocation use vacuum to draw through water of milk-- the idea is to get the water out & leave the globules--"; p. 143 "Seperation Water from Milk-- Evaporatn in Vacuum-- Freeze it-- Try filtering it through a tube containing large quantity of fine powder use vacuum-- wash cream out of powder" (drawings)



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