Improvements in Knockers, Indicators, and Communicators Usually Fixed to Doors and the like.

Abstract

16,502. Pepper, W. July 24. Signals, bell. - A plate a for attachment to doors and the like is fitted with a hinged knocker b which covers a letter-slit c, with a bell-pull d, and with a frame h adapted to receive name or other cards or plates i, j which are slid into position and secured from the back by pins k. In a modification, the knocker is shaped to cover a horizontal slit, and the frame is adapted to receive the cards or plates end to end.

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