The Edison Monthly, Band 3

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New York Edison Company, 1910

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Seite 45 - Adjustable-speed motors, in which the speed can be varied gradually over a considerable range, but when once adjusted remains practically unaffected by the load, such as shunt motors designed for a considerable range of speed variation.
Seite 49 - ... illumination, colourless, or of a slightly bluish tint. The period of the flicker is not well defined. It does not seem to be the same over the whole region of vision at the same time, nor is it equally bright over the whole region of vision, but is somewhat brighter in the peripheral region than in the central parts. Even in daylight, with the eyes open, one is conscious of a sensation of flicker superposed upon the ordinary vision. The effect is diminished by lowering the intensity of the field,...
Seite 293 - NONE are so fond of secrets as those who do not mean to keep them ; such persons covet secrets, as a spendthrift covets money, for the purpose of circulation.
Seite 45 - ... c. ADJUSTABLE-SPEED MOTORS, in which the speed can be varied gradually over a considerable range; but when once adjusted remains practically unaffected by the load, such as shunt motors designed for a'considerable range of field variation. 49 d. VARYING-SPEED MOTORS, or motors in which the speed varies with the load, decreasing when the load increases; such as series motors.
Seite 132 - ... incandescent lamp were changed to produce and project within a predetermined area non-parallel beams crossing each other in sufficient numbers to form one or more very brilliant spots. These spots are the penetrating points which I sometimes refer to as the 'new force,' 'new rays
Seite 45 - Multispeed motors (two-speed, three-speed, etc.), which can be operated at any one of several distinct speeds, these speeds being practically independent of the load, such as motors with two armature windings. 3. Adjustable-speed motors, in which...
Seite 44 - MULTISPEED MOTORS (two-speed, three-speed, etc.), which can be operated at any one of several distinct speeds, these speeds being practically independent of the load, such as motors with two armature...
Seite 113 - ... used. The compound wound motor is useful in that at the instant of reversal, when the torque required of the motor increases very considerably above the normal, the compound winding assists materially in holding the inrush of current within reasonable limits ; and this may be further improved by the use of a fly-wheel. The following figures show average practice for the operation of some of the typical reciprocating machines.
Seite 137 - ... depends on the amount of current and the resistance of the conductor. In an electric circuit the ends of two pieces of metal brought together form the point of greatest resistance in the electric circuit, and the abutting ends instantly begin to heat. THe hotter this metal becomes, the greater the resistance to the flow of current ; consequently, as the edges of the abutting ends heat, the current is forced into the adjacent cooler parts, until there is a uniform heat throughout the entire mass....
Seite 172 - The factory of the company is the largest in the world devoted exclusively to the manufacture of rollers and roller attachments.

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