Addresses Delivered at the Triennial Celebration ..., Томови 24-281886 |
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Страница 26
... circuit , instead of consisting of one wire extend- ing from the central office to the subscriber's station , consists of two insulated wires twisted spirally , the current going over one wire and returning over the other . Many such ...
... circuit , instead of consisting of one wire extend- ing from the central office to the subscriber's station , consists of two insulated wires twisted spirally , the current going over one wire and returning over the other . Many such ...
Страница 27
... circuit system so that conversation could not be carried on between parties in one city and parties in a neighboring city , unless both cities , as well as intervening trunk lines , were constructed with metallic circuits . Thus far we ...
... circuit system so that conversation could not be carried on between parties in one city and parties in a neighboring city , unless both cities , as well as intervening trunk lines , were constructed with metallic circuits . Thus far we ...
Страница 47
... circuit arrangements FIG . 3. and electrical primers . A very Battery 16 b B small battery suffices to give a current which would bring the platinum wire - bridge of the fuse to a red heat , and insure the igni- tion of the charge . The ...
... circuit arrangements FIG . 3. and electrical primers . A very Battery 16 b B small battery suffices to give a current which would bring the platinum wire - bridge of the fuse to a red heat , and insure the igni- tion of the charge . The ...
Страница 48
... circuit . When the shell strikes , the plunger B moves forward to the pole f , the circuit is closed , and the charge is exploded . To determine the best details of arrangement of the charge and fuse , the following experiments were ...
... circuit . When the shell strikes , the plunger B moves forward to the pole f , the circuit is closed , and the charge is exploded . To determine the best details of arrangement of the charge and fuse , the following experiments were ...
Страница 49
... circuit is closed through the primer , which explodes the charge from the rear . The actual time required to produce explosion before the full impact of the shell took place was both of a second . Plungers arranged to close up to a ...
... circuit is closed through the primer , which explodes the charge from the rear . The actual time required to produce explosion before the full impact of the shell took place was both of a second . Plungers arranged to close up to a ...
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28 State Street alternating current ammonia amount amperes apparatus arbitration arch ARTS was held Avesta battery Beacon Street belt Bessemer process boiler Boston bridge cantilever bridge carbon cement cent circuit circulator coal coil Commonwealth Avenue condensation conductors connected construction copper cost cylinder diameter dynamo effect elastic limit electrical electro-motive force employers engine experiments feet furnace George W heat horse-power incandescent increase induction induction coil Institute of Technology Institute on Thursday iron labor lamps length less light machine magnetic Mass material matter measure metal method Mount Vernon obtained ohms operation ordinary orifice oxide pipe plate pounds practical present pressure previous meeting produce Prof rails read a paper resistance River SOCIETY OF ARTS span square inch steam steel supply surface temperature tensile tensile strength tion train tube valve volts weight welding wire
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Страница 92 - ... advise the respective parties what, if anything, ought to be done or submitted to by either or both to adjust said dispute, and make a written decision thereof.
Страница 79 - May one thousand eight hundred and twenty-five, the Straight Line or Distance between the Centres of the Two Points in the Gold Studs in the Straight Brass Rod, now in the Custody of the Clerk of the House of Commons, whereon the Words and Figures
Страница 91 - An Act to provide for a State Board of Arbitration for the settlement of differences between employers and employes, to define the duties of said Board, and to appropriate the sum of twenty-five hundred dollars therefor.
Страница 93 - ... make and publish a report finding such cause or causes, and assigning such responsibility or blame. The board shall have the same powers for the foregoing purposes as are given it by section three of this act.
Страница 81 - To form some conception of the degree of coarse-grainedness indicated by this conclusion, imagine a rain drop, or a globe of glass as large as a pea, to be magnified up to the size of the earth, each constituent molecule being magnified in the same proportion. The magnified structure would be coarser grained than a heap of small shot, but probably less coarse grained than a heap of cricketballs.
Страница 79 - Pendulum vibrating Seconds of Mean Time in the Latitude of London in a Vacuum at the Level of the Sea is in the proportion of Thirty-Six Inches to Thirty-Nine Inches and one thousand three hundred and ninety-three ten-thousandth Parts of an Inch...
Страница 39 - Cross in the chair. The records of the previous meeting were read and approved. The chairman...
Страница 122 - Thus the nutrients of vegetable foods are, in general, much less costly than in animal foods. The animal foods have, however, the advantage of containing a larger proportion of protein and fats, and the protein, at least, in more digestible forms.
Страница 133 - ... following : — First. To give the students practice in such experimental work as any engineer is constantly liable to be called upon to perform in the practice of his profession; as boiler tests, engine tests, power determinations, etc. Second. To give the students some experience in carrying on original investigations in engineering subjects with such care and accuracy as to render the results of real value to the engineering community. Third. By publishing from time to time the results of...
Страница 96 - President, in the Chair. After the reading of the minutes of the previous meeting the name of Dr.