. Journal of electricity. or other device in which the pressure is gradually increasing pressure at the press is produced bysuccessively increasing the number of cylinders into whichthe power water is fed and then gradually decreasing thenumber of cylinders from which the pressure water is the beginning of the operation power water is introducedinto one cylinder and pressure water taken from all of theothers, resulting in low pressure water, and at the end ofthe operation power water is introduced into correspondingends of all of the cylinders and the pressure water is taken
. Journal of electricity. or other device in which the pressure is gradually increasing pressure at the press is produced bysuccessively increasing the number of cylinders into whichthe power water is fed and then gradually decreasing thenumber of cylinders from which the pressure water is the beginning of the operation power water is introducedinto one cylinder and pressure water taken from all of theothers, resulting in low pressure water, and at the end ofthe operation power water is introduced into correspondingends of all of the cylinders and the pressure water is takenfrom one cylinder only, the pressure ends of the other cylin-ders being open. This produces water under high pressure. Circuit BreakerPatent No. 1,253,761, issued to Richard Wolfsberg andSidney C. Smith of Los Angeles, California, shows a safetycircuit breaker. The circuit breaker consists of a case havingcontacts therein at the top and bottom and a door hingedintermediate, its ends to the front wall of the case at about. the vertical center of the front wall. The door carries con-tacts on its inside surface, which engage the contacts in thecase and close the circuit when the door is closed. Whenthe door is pulled open the circuit is broken. Means are pro-vided for holding the door in a slanting position when it isopen, and secured to the inner end of the door is a shieldwhich contacts with the rear of the case, closing the bottomportion of the case. Indicator Reversing MeansPatent No. 1,253,388, issued to Orlando E. Kellum andArthur H. Sweetland of Los Angeles, California, shows anindicator reversing mechanism for street cars. The indicatorreversing mechanism includes an electro-magnetic field mag-net and a bi-polar armature. Mechanical means are providedfor normally holding the armature with either of its poles initially inclined toward one of the field magnet poles, andelectro-magnetic means are provided for operating the me-chanical means, to shift the armature from one nor
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Keywords: ., bookcentury1900, bookdecade1910, bookidjo, booksubjectelectricity
