Miller, Kempster Blanchard, 1870-1933 · New York : McGraw publishing company · leaf 63
of this receiver are composed of two magnets,A A, clamped together by screws passing through an iron tail-block, B, at one end, and through a threaded block, C, of brass atthe end nearest the magnet coils. The pole-pieces, f p, are clampedbetween the pole end of the magnets and the block C, and… … FIG. 27.—KELLOGG RECEIVER. net poles toward or from the diaphragm may be readily accom-plished. When this adjustment is once determined, however, inthe factory, it is made permanent by driving a pin through a flangeon the block and into the hard rubber, thus preventing accidentalderangement of the…
Telephone
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