File:American telephone practice (1905) (14569965907).jpg

Identifier: americantelepho00mill (find matches)
Title: American telephone practice
Year: 1905 (1900s)
Authors: Miller, Kempster B. (from old catalog)
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Contributing Library: The Library of Congress
Digitizing Sponsor: The Library of Congress

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Text Appearing Before Image:
FIG. 4S6.-PLAN OF MULTIPLE CABLING. The forming up of the multiple cables and soldering them to theirjacks should always be done in the factory. In this way a vastamount of soldering may be accomplished before the apparatus isshipped to its destination, and in fact, the multiple jacks and multiplecables should all be tested out for transpositions, crosses, open wires,etc., before they leave the factory. The premises in which a largemultiple board is being installed is no place for the performance ofthe almost endless task of soldering the multiple cables. The workmay be done much more cheaply in the factory, where skilled laboris kept on hand for that purpose. It is therefore difficult to seewhy the practice still exists in some quarters in shipping the cablesin lengths to be cut up, formed and soldered on the premises in theinstallation. There is, moreover, no reason, if proper engineering TOP VIEW
Text Appearing After Image:
13 FIG. 487.—DETAILS OF CABLE LAY-OUT.673 674 AMERICAN TELEPHONE PRACTICE. work is done in designing the wiring, why practically all of thecables, both long and short, should not be prepared, cut to length,formed, and in some cases soldered to their terminals in the factoryrather than doing it at the installation. To do this, however, re-quires the utmost nicety in the laying out of the various details ofthe plant. The scheme of cabling down to the running of each individualcable must be worked out at the draughting table on as large a scaleas possible, after which the various cable runs are scaled and cable

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