New Catechism of Electricity: A Practical TreatiseT. Audel, 1896 - 541 стор. |
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Сторінка 99
... adjustment that they will weigh anything , to the smallest hair plucked from the eyebrow . They are triumphs of mechanism , and are enclosed in glass cases . Two pieces of paper of equal weight put in the scales , and an autograph ...
... adjustment that they will weigh anything , to the smallest hair plucked from the eyebrow . They are triumphs of mechanism , and are enclosed in glass cases . Two pieces of paper of equal weight put in the scales , and an autograph ...
Сторінка 170
... and to prevent undue wear of the commutator , it is needful that the pressure of the brushes upon the latter THE BRUSHES . should be capable of being adjusted to 170 NEW CATECHISM OF ELECTRICITY . VARIOUS KINDS OF BRUSHES. ...
... and to prevent undue wear of the commutator , it is needful that the pressure of the brushes upon the latter THE BRUSHES . should be capable of being adjusted to 170 NEW CATECHISM OF ELECTRICITY . VARIOUS KINDS OF BRUSHES. ...
Сторінка 171
A Practical Treatise Nehemiah Hawkins. THE BRUSHES . should be capable of being adjusted to meet requirements ; it is ... adjustments of the brush holder springs or breaking the working circuit . To enable this to be effected the brushes ...
A Practical Treatise Nehemiah Hawkins. THE BRUSHES . should be capable of being adjusted to meet requirements ; it is ... adjustments of the brush holder springs or breaking the working circuit . To enable this to be effected the brushes ...
Сторінка 172
... adjusted without risk of shocks . · The insulation of the brush , or of brush and brush - holder together , must be very thorough . Each maker has his own particular arrangement for giving these essential motions to the brushes and they ...
... adjusted without risk of shocks . · The insulation of the brush , or of brush and brush - holder together , must be very thorough . Each maker has his own particular arrangement for giving these essential motions to the brushes and they ...
Сторінка 176
... adjustment of the brushes should next be proceeded with . Attention to Brushes . - The adjustment of the brushes upon the commutator requires careful attention if sparking is to be avoided . The points upon the commutator at which the ...
... adjustment of the brushes should next be proceeded with . Attention to Brushes . - The adjustment of the brushes upon the commutator requires careful attention if sparking is to be avoided . The points upon the commutator at which the ...
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Загальні терміни та фрази
adjusted alternating current ammeter amperes apparatus arc light armature arranged bars battery bearings belt BOARD FIRE UNDERWRITERS Boiler brushes carbon cause cell commutator conducting conductors connected construction copper core COUPLING OF DYNAMOS current flowing current of electricity cut-out direct current direction disconnection drum electric current electric energy ELECTRIC LIGHTING ELECTRIC POWER TRANSMISSION ELECTRICAL RESISTANCE electro-magnet electromotive-force exciting fault field coils field magnet fuse galvanometer hand regulator heat incandescent inch insulation iron lamps liable lines of force load machine magnetic field metal method motion motor NATIONAL BOARD FIRE needle parallel passing pipes placed plate points pole pieces position practical pressure produced pulley QUES resistance rheostat ring rotating RULES AND REQUIREMENTS screw segments shaft short circuit shown in Fig solder sparking speed strength surface switch telegraph telephone terminals tion tube vibration voltage voltmeter volts winding WIRING RULES wound zinc