. Journal of electricity . ELECTRIC WELDING was invented byThomson in 1889. All is not useless thatwas broken; if you cant afford a newone THE SEARCHLIGHT SECTIONIS AT YOUR SERVICE 384 JOURNAL OF ELECTRICITY [Vol. 45—No. 8 required, the time necessary in preparing rivet platesand rivets away from the job tluows the balancedistinctly on the side of electric welding. George L. Hurst of the Bethlehem ShipbuildingCorp., Ltd., who designed the dredge, strongly advo-cated that it be entirely welded by electricity, but. Showing some of the many visitors who p:athered to witness the ceremoniesheld in
. Journal of electricity . ELECTRIC WELDING was invented byThomson in 1889. All is not useless thatwas broken; if you cant afford a newone THE SEARCHLIGHT SECTIONIS AT YOUR SERVICE 384 JOURNAL OF ELECTRICITY [Vol. 45—No. 8 required, the time necessary in preparing rivet platesand rivets away from the job tluows the balancedistinctly on the side of electric welding. George L. Hurst of the Bethlehem ShipbuildingCorp., Ltd., who designed the dredge, strongly advo-cated that it be entirely welded by electricity, but. Showing some of the many visitors who p:athered to witness the ceremoniesheld in connection with the throwing of the switch which put the dredgein operation. because this practice was new and untried others inauthority did not feel safe in taking such an advancestep. This one trial, however, has proved the superi-ority of the electric welding practice and a large Cali-fornia dredge, to be entirely welded by electricity,is now being and Operation — The power used in operating this dredge is takenfrom Truckee River Light and Power Company linesat 4,400 volts and is carried to the di-edge over a1,500-foot cable where it is transformed to the 440-volt current used in operating the motors. Thedredge has a 500-hp. load. The largest motor is200-hp., used to operate the bucket line that scoopsthe gold-laden gravel from surface to bediock andcarries it up to the top of the dredge, where it isdumped into an inclined revolving grizzly and washedby a stream of water passing
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectelectricity, bookyear
