Designed and built within the contents of a mid 1950's Medium Red and Green Meccano Set, with the following exceptions:- Additional Nuts, Bolts, Washers and Spring Clips were utilised - to provide an exact 50:1 ratio for the second hand drive, an obsolete 20 tooth Pinion was substituted for a 19 tooth Pinion - zinc plated parts were used for the clock hands in the cause of clarity.

The clock was shown at the Henley Gathering quite a few years ago when first built at which time problems had arisen with achieving reliable operation of the escapement which employed a 36 tooth Sprocket as an escape wheel. This year I decided to have another attempt to complete the model, after reading a constructional article in CQ describing a Meccano Clock by Dr. John Stark who had a similar problem with its Meccano Sprocket escapement. This he cured by substituting an Ashok replica Sprocket. Dave Taylor stocks these, which enabled me at long last to achieve continuous running.

At this point I carried out several other modifications to the clock to achieve easier dismantling and reassembly for transport and among other items I fitted adjustable feet to allow levelling. Unfortunately so much time had passed since the clock was originally built that all notes of Parts used and those left over have been lost, so I can no longer be sure that the clock can be constructed from a Set 9. To find out I would have to dismantle and ressamble it, a task that I would not readily undertake having spent so many hours working on it in recent months.

Features of the clock include a single hourly strike, a days of the month dial, and following a challenge by Frank Paine of the South East London Meccano Club, another dial shows the phases of the moon. These last two employ Driving Band reduction drives which give a reasonable approximation to the required ratios. (A few additional Bands to those in the Set were required for this).

All in all, this model has been the most challenging and complex model I have ever attempted, and it will be a relief to return to my usual transport modelling......