A Victorian mahogany and brass-bound eight day astronomical longcase regulator with seven-legged gravity escapement and showing mean and sidereal time
T. COOKE & SONS, YORK AND LONDON. 19TH CENTURY
A Victorian mahogany and brass-bound eight day astronomical longcase regulator with seven-legged gravity escapement and showing mean and sidereal time T. Cooke & Sons, York and London. 19th Century The case with substantial backboard and with fully glazed hinged and detachable upper section, above plinth panelled to all sides and with drop-down front door, with silvered sight ring to silvered and engraved 13 in. diameter regulator format dial, signed T. Cooke & Sons York & London , with subsidiary seconds ring above 24-hour sidereal time ring with hour hand and XII-hour mean time ring with hour and minute hand, the centre sweep hand indicating sidereal minutes, all hands of blued steel, winding through a brass-covered aperture in the glass to a winding square at the centre of the sidereal ring, the movement with tapering plates secured to a brass bracket, high count train, rare seven-legged gravity escapement, great wheel with double-click work and maintaining power, the backboard centred by a brass-mounted silvered and engraved combination thermometer and aneroid barometer dial, signed T. Cooke & Sons/Patent 31. Southampton St./STRAND./LONDON/202/Compensated , the weight supported by a conical bracket and with pulleys to top and bottom, the pendulum beating sidereal seconds and swinging against a silvered scale on the backboard, with steel rod and brass jacket engraved SOLAR PHYSICS/35 , mounted above with a Vernier scale for precise measurement of its height; crank key, case key 76½ in. (194 cm.) high
A Victorian mahogany and brass-bound eight day astronomical longcase regulator with seven-legged gravity escapement and showing mean and sidereal time
T. COOKE & SONS, YORK AND LONDON. 19TH CENTURY
A Victorian mahogany and brass-bound eight day astronomical longcase regulator with seven-legged gravity escapement and showing mean and sidereal time T. Cooke & Sons, York and London. 19th Century The case with substantial backboard and with fully glazed hinged and detachable upper section, above plinth panelled to all sides and with drop-down front door, with silvered sight ring to silvered and engraved 13 in. diameter regulator format dial, signed T. Cooke & Sons York & London , with subsidiary seconds ring above 24-hour sidereal time ring with hour hand and XII-hour mean time ring with hour and minute hand, the centre sweep hand indicating sidereal minutes, all hands of blued steel, winding through a brass-covered aperture in the glass to a winding square at the centre of the sidereal ring, the movement with tapering plates secured to a brass bracket, high count train, rare seven-legged gravity escapement, great wheel with double-click work and maintaining power, the backboard centred by a brass-mounted silvered and engraved combination thermometer and aneroid barometer dial, signed T. Cooke & Sons/Patent 31. Southampton St./STRAND./LONDON/202/Compensated , the weight supported by a conical bracket and with pulleys to top and bottom, the pendulum beating sidereal seconds and swinging against a silvered scale on the backboard, with steel rod and brass jacket engraved SOLAR PHYSICS/35 , mounted above with a Vernier scale for precise measurement of its height; crank key, case key 76½ in. (194 cm.) high
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