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Grignion Clock

(Code: MP145)
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Grignion ClockThis clock has a pioneering and unique escapement mechanism, invented in the early 1700s by Grignion. This can be best described as a dead beat escapement with impulse on alternate oscillations , one pallet giving impulse while the other locks the escape wheel. Designed to beat half seconds, it has seconds, hour and minute hands with the movement mounted in pivot bearings, and an electrical epicyclic rewind which runs unattended for months. The clock case is 18" wide and can be displayed on a shelf. The original can be seen in working condition in the Worshipful Company of Clockmakers Museum at the Guildhall, City of London.

These instructions include sections on Clock Plates, Shafts and bearings, Escape Wheel, Escape Wheel Jig, Setting up escape wheel, Escapement, Escapement Stop, Setting up escapement, Adjusting escapement stop, The Going Train, Motion Work, The Hands, Pendulum, Suspension Spring. Bearer and Bob, Clock Case, Attachment of Pendulum, Clock Power, and Final Adjustment.

A twelve pages of booklet of instructions are supplemented with 4 pages of nine colour photographs. A separate 12 page booklet contains ten isometric drawings and parts list. There is also a separate gloss paper clock face reproduction to cut out.
Please note these Model Plans are designed by individual Meccano modellers and may use parts not currently available. The level of instruction detail is dependent on the original modeller and varies from plan to plan. These are instructions only.