1851 Great Exhibition: Official Catalogue: Class X.: S. Newington
20. NEWINGTON, S., Hastings — Inventor.
Patent clock, or regulator. A common clock with spring and balance-wheel; having the hands and dial-plate removed, and a dial substituted, which revolves in the same way as an hour-hand. This clock is placed in a flat round box, and is arranged to show whether a person has been at a particular spot at any required time.