How To Make an Epicyclic Train Strutt Clock

$45.00

A work of art that will forever be cherished by your heirs. This is one of the most interesting of all single train skeleton clocks ever conceived. First made by an Englishman, William Strutt, about 1830, it has a number of interesting and extremely unusual features not found in other clocks. Its 8-day run, spring driven train is epicyclic (planetary gearing) and involves a ring wheel of 4-1/2″ ID and 5-1/2 OD teeth. The motion work is based on the Ferguson Mechanical Paradox instead of the normal 12 to 1 gear train. To allow individual setting of the hands, the collets are of most unusual design. Both beautiful and unusual in the extreme, this clock is an excellent time keeper, which any Clockmaker will be proud to have made.

This is a 128 page, 378 figure workshop manual for building the clock.

A gold medal winner in the 2003 NAWCC International Craft Contest

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Description

A work of art that will forever be cherished by your heirs. This is one of the most interesting of all single train skeleton clocks ever conceived. First made by an Englishman, William Strutt, about 1830, it has a number of interesting and extremely unusual features not found in other clocks. Its 8-day run, spring driven train is epicyclic (planetary gearing) and involves a ring wheel of 4-1/2″ ID and 5-1/2 OD teeth. The motion work is based on the Ferguson Mechanical Paradox instead of the normal 12 to 1 gear train. To allow individual setting of the hands, the collets are of most unusual design. Both beautiful and unusual in the extreme, this clock is an excellent time keeper, which any Clockmaker will be proud to have made.

TRAIN—The center arbor carries the minute hand and is driven by a fusee/great-wheel assembly. Fixed to the center arbor is a planet arm having a counterweight on one end and a planet wheel and pinion on the other end. A sun wheel is fixed to the center of the dial and cannot rotate. The planet pinion engages this wheel and is forced to rotate while being moved around it by the planet arm. The planet wheel drives the internal teeth of the ring wheel, which is free to rotate on the center arbor. The external teeth of the ring wheel drive the escape wheel pinion. A conventional recoil escapement drives the pendulum. The Ferguson Paradox avoids the need for a 12 to 1 gear train between the hour hand and the minute hand.

This is a 128 page, 378 figure workshop manual for building the clock.

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