Weber.
(a.) A name suggested by Clausius and Siemens to denote a magnet pole of
unit strength. This use is abandoned.
(b.) It has been used to designate the unit of quantity--the coulomb.
This use is abandoned.
(c.) It has been used to designate the unit of current strength the
ampere. This use is abandoned.
[Transcriber's note: Definition (a) is now used. One weber of magnetic
flux linked to a circuit of one turn produces an electromotive force of
1 volt if it is reduced to zero at a uniform rate in 1 second.]
Weber-meter.
An ampere-meter or ammeter. The term is not used since the term "weber,"
indicating the ampere or coulomb, has been abandoned.
Welding, Electric.
Welding metals by heat produced by electricity. The heat may be produced
by a current passing through the point of junction (Elihu Thomson) or by
the voltaic arc. (Benardos & Olzewski.)
Fig. 346. ELECTRIC WELDING INDUCTION COIL.
The current process is carried out by pressing together the objects to
be united, while holding them in conducting clamps. A heavy current is
turned on by way of the clamps and rapidly heats the metals at the
junction, which is of course the point of highest resistance. As the
metal softens, it is pressed together, one of the clamps being mounted
with feed motion, flux is dropped on if necessary, and the metal pieces
unite.
The most remarkable results are thus attained; almost all common metals
can be welded, and different metals can be welded together. Tubes and
other shapes can also be united. In many cases the weld is the strongest
part.