Miller, Kempster Blanchard, 1870-1933 · New York : McGraw publishing company · leaf 644
hen through another ring back to the ter-minal side of the frame. The construction is similar to that of theFord & Lenfest and of the Cook frames. Up to this point only those distributing frames have been con-sidered by whicli changes may be made with respect to the connec-tion between outside… … (J22 DISTRIBUTING FRAMES. 623 In modern exchanges of sufficient size to employ multiple switch-boards an intermediate distributing frame should be provided, andthe circuits leading from the switch-board side of the main frameshould lead through this before passing to the switch-board proper. The…
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