. Electrical world. GANGUE; Thomas A. Edison, Llewellyn Park, N. J. App. filed May 29,1903. App. filed March 15, 1903. The small proportion of non-magneticmaterial in a body of ore is recovered by first grinding to a fineness to freethe non-magnetic particles, then adding a larger bulk of the coarser non-magnetic material, then passing the mixture through a magnetic separatorto separate the entire body of non-magnetic material and finally separatingthe coarser material from the original non-magnetic material- 762- ELECTRIC SOCKET SUPPORT; Edwin R. Gill, New York, N. filed March 14. 1902
. Electrical world. GANGUE; Thomas A. Edison, Llewellyn Park, N. J. App. filed May 29,1903. App. filed March 15, 1903. The small proportion of non-magneticmaterial in a body of ore is recovered by first grinding to a fineness to freethe non-magnetic particles, then adding a larger bulk of the coarser non-magnetic material, then passing the mixture through a magnetic separatorto separate the entire body of non-magnetic material and finally separatingthe coarser material from the original non-magnetic material- 762- ELECTRIC SOCKET SUPPORT; Edwin R. Gill, New York, N. filed March 14. 1902. A lamp socket having brads in its base topuncture the insulation of conductors and a central screw by which thesocket can be supported on any structure. 778. TROLLEY WHEEL RETAINER; James A. Kelpatrick, Niles, filed Dec. 19, 1903. Details. ,804. SPEED REGULATING MAGNETIC CLUTCH; Charles A. Pratt, —Electrical Water Heater. 62.—Electric Socket Support. icd Regulating Magnetic Clutch. 754, AUTOMATIC CIRCUIT BREAKER; William M. Scott, Philadel-phia, Pa. App. filed June 18, 1903. Various improvements in the detailsof construction. 754,534. \TIC GAS DETECTING MEANS; James E. Baldwin,East Williston, N. Y. App. filed Sept. 10, 1902. -Details. AUTOMATIC FIRE ALARM; Mason K. Fred. Pleasanton, filed March 9. 1903. A protective fusible wire is connected inparallel with an alarm and a resistance and in series with a battery; theresistance normally prevents the alarms from ringing, but the destructionof the fuse wire sends the entire current through the alarm. ELECTRIC RAILWAY; Rudolf Alfred Emil Haber and Hans HugoCarl Behn-Eschenburg. Zurich, Switzerland. App. filed Dec. 23, application of the Ward Leonard railway system relating to the useof alternating current line sections of different voltages; for example, ahigh voltage for the open country and a low voltage for large railwaystations. 754
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectelectri, bookyear1883
