Telephone Construction, Installation, Wiring, Operation and MaintenanceN.W. Henley Publishing Company, 1914 - 223 стор. |
З цієї книги
Результати 6-10 із 12
Сторінка 151
... conduit permits rather than joining short , straight pieces , as is frequently done in describing curves of large radius . Conduits are of many types and materials , the cheapest form consisting of creosoted wooden tubes generally known ...
... conduit permits rather than joining short , straight pieces , as is frequently done in describing curves of large radius . Conduits are of many types and materials , the cheapest form consisting of creosoted wooden tubes generally known ...
Сторінка 152
... conduit , a concrete foun- dation is laid in the bottom of the trench , and the ducts are then laid in with cement and the sides of the trench filled up to each duct level as each layer is laid . When the conduit is all laid and all ...
... conduit , a concrete foun- dation is laid in the bottom of the trench , and the ducts are then laid in with cement and the sides of the trench filled up to each duct level as each layer is laid . When the conduit is all laid and all ...
Сторінка 153
... conduit to prevent abrasion of the sheath . This may be done by means of a funnel shaped metal guide shield in the mouth of the conduit and also carefully feeding in and di- recting the cable by hand as it is pulled through ...
... conduit to prevent abrasion of the sheath . This may be done by means of a funnel shaped metal guide shield in the mouth of the conduit and also carefully feeding in and di- recting the cable by hand as it is pulled through ...
Сторінка 154
... . - Method of Drawing Cable in Place Through Conduits by Steam Operated Winch . bare copper wires in a wood trough in a trench. Cable Reel Manhole Engine Steam Boiler Manhole Conduit Winch ROEBLINGS TRENTON NJ N FIG . 98. - Method of. 151.
... . - Method of Drawing Cable in Place Through Conduits by Steam Operated Winch . bare copper wires in a wood trough in a trench. Cable Reel Manhole Engine Steam Boiler Manhole Conduit Winch ROEBLINGS TRENTON NJ N FIG . 98. - Method of. 151.
Сторінка 155
... conduit , where it leaked out of the containing trough and oozed up between the pav- ing blocks to the street surface . This allowed the wires to cross with each other , making the experiment a failure . Rubber - insulated cables ...
... conduit , where it leaked out of the containing trough and oozed up between the pav- ing blocks to the street surface . This allowed the wires to cross with each other , making the experiment a failure . Rubber - insulated cables ...
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Telephone Construction: Installation, Wiring, Operation and Maintenance ... William Hiram Radcliffe Попередній перегляд недоступний - 2015 |
Telephone Construction: Installation, Wiring, Operation and Maintenance ... William Hiram Radcliffe Попередній перегляд недоступний - 2017 |
Загальні терміни та фрази
alternating current ampere armature automatic binding posts bolt brace called cents clamp complete metallic circuit Concrete conductors conduit connected construction containing copper copper wire cord cross-arms desk set diaphragm distributing board Dry cells electrical electromotive force exchange switchboard extension bell fastened feet fully illustrated gage gas engines gear ground heat coil HISCOX hole hook switch inches induction coil installation insulated iron wire jack lamp Leclanché cell lightning arrester line circuit line drop line wires machine magnet magneto bell mechanical method mounted O'CONOR SLOANE ohms operator operator's pair party party-line systems pipe placed plate plug pole position practical primary winding Protective Apparatus receiver resistance ringing key rope rubber screw sheath shown in Fig shows shunt side signal sleeve soldered spring steam steel storage battery switch arm tele Telephone Circuit telephone set terminals Testing tion transmitter usually wall set zinc
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