З цієї книги
Результати 1-5 із 88
Сторінка 25
... matters of that kind , but also because it has been , young though it is , lending a hand to older scientific professions . We find now that the civil engineer , the mechanical engineer , the mining engineer , the metallurgist , and the ...
... matters of that kind , but also because it has been , young though it is , lending a hand to older scientific professions . We find now that the civil engineer , the mechanical engineer , the mining engineer , the metallurgist , and the ...
Сторінка 31
... matters , notwithstanding I have sense enough to know that electricity will revolu- tionize our our machinery , and that , instead of horse and steam power , electricity will be the motive power . As I said before , I am no authority on ...
... matters , notwithstanding I have sense enough to know that electricity will revolu- tionize our our machinery , and that , instead of horse and steam power , electricity will be the motive power . As I said before , I am no authority on ...
Сторінка 40
... it is to have both positive and negative currents , and ask him also about the essential character of a switch . ( Laughter . ) Ask him about any of these things , and then never again will it be noted as a matter of mark that 40.
... it is to have both positive and negative currents , and ask him also about the essential character of a switch . ( Laughter . ) Ask him about any of these things , and then never again will it be noted as a matter of mark that 40.
Сторінка 41
National Electric Light Association. Convention. will it be noted as a matter of mark that ladies are attending electrical conventions . I speak not merely formally when I say to your Worship , to the Chairman of this Committee , and ...
National Electric Light Association. Convention. will it be noted as a matter of mark that ladies are attending electrical conventions . I speak not merely formally when I say to your Worship , to the Chairman of this Committee , and ...
Сторінка 49
... matter of simple calculation ; we may , for the sake of this argument , call it 500 volts ) . Continuing in this way , in steps of 500 volts , successive zones , half a mile across , might extend , in the aggregate , to several miles ...
... matter of simple calculation ; we may , for the sake of this argument , call it 500 volts ) . Continuing in this way , in steps of 500 volts , successive zones , half a mile across , might extend , in the aggregate , to several miles ...
Інші видання - Показати все
Загальні терміни та фрази
adopted alternating current ammeter amperes apparatus Applause arc lamp arc lights AYER boilers Boston building BURLEIGH candle power CAPTAIN BROPHY carbons cent Chairman charge Chicago circuit conductors connection construction Convention cost cut-out direct current dynamo elec Electric Company Electric Light Association Electric Light Company electric railway engine Executive Committee Exhibition expenses experience fact feet FRANCISCO Frederic Nicholls fuse gentlemen horse car horse power incandescent lamps inches installed insulation interest JUDGE ARMSTRONG Light and Power load machine MASON matter McGill University meeting meter month Montreal motion was carried motor multiple arc National Electric Light operation paper parent companies placed plant pole practice present President question repairs resolution rules Safe Wiring SEELY Station Companies steam street railway supply switch thing three-wire system tion to-day trolley turbine underground voltmeter volts water power York
Популярні уривки
Сторінка 106 - Must be so placed in wet places that an air space will be left between conductors and pipes in crossing, and the former must be run in such a way that they cannot come in contact with the pipe accidentally. Wires should be run over, rather than under, pipes upon which moisture is likely to gather or which, by leaking, might cause trouble on a circuit.
Сторінка 219 - The chariots shall rage in the streets, they shall jostle one against another in the broad ways : they shall seem like torches, they shall run like the lightnings.
Сторінка 112 - Must not be attached to the outside walls of buildings, unless separated therefrom by substantial insulating supports.
Сторінка 103 - Must, for constant-current systems, be provided with an approved hand switch, also an automatic switch that will shunt the current around the . carbons, should they fail to feed properly.
Сторінка 101 - Must be so spliced or joined as to be both mechanically and electrically secure without solder. The joints must then be soldered, to insure preservation, and covered with an insulation equal to that on the conductors.
Сторінка 100 - Arresters should be attached to each side of every overhead circuit connected with the station. It is recommended to all electric light and power companies that arresters be connected at intervals over systems in such numbers and so located as to prevent ordinary discharges entering (over the wires) buildings connected to the lines.
Сторінка 111 - SOCKETS:— a. No portion of the lamp socket exposed to contact with outside objects must be allowed to come into electrical contact with either of the conductors.
Сторінка 115 - When current for light and power is taken from primary or secondary batteries, the same general regulations must be observed as apply to similar apparatus fed from dynamo generators developing the same difference of potential.
Сторінка 229 - Indian gown, with a sash, silk stockings, and beaver hats men ride in, and carry no other with them, because they escape the wet and dirt, which on horseback they cannot avoid ; whereas, in two or three journeys on horseback, these clothes and hats were wont to be spoiled. Which done, they were forced to have new very often, and that increased the consumption of the manufactures, and the employment of the manufacturers, which travelling in coaches doth no way do.
Сторінка 111 - Must be so suspended that the entire weight of the socket and lamp will be borne by knots under the bushing in the socket, and above the point where the cord comes through the ceiling block or rosette, in order that the strain may be taken from the joints and binding screws.