Miller, Kempster Blanchard, 1870-1933 · New York : McGraw publishing company · leaf 565
ber of lamps thatwill have to be lighted through it without undue heat. As com-paratively few of these relays are required, the heating effect maybe taken care of by making the relay of large dimensions, so as tohave a large radiating surface. This also affords greater windingspace, so that the… … FIG. 396.—KELLOGG PILOT RELAY. this being of the same general type as its major relay, except thatthe contacts are carried on the front leg of the armature and on thefront head of the core. This relay has a gravity-actuated armature.It is about two inches in diameter and 3^ inches long. Whenwound…
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