ModelPlan 221


Mike Edkins'


Demonstration + Practical Clock Movements



Aimed at the newcomer to Meccano clock building, the Demonstration Clock Movement is a practical introduction to clock theory and construction methods.  It had a basic type of gear train for a weight-driven clock fitted with a pendulum beating seconds, laid out in linear form, making the description and the gear trains and their relationship easy to follow.  The mechanism is fitted with two chain-driven Sprocket Wheels which obviate the usual need for a 30-tooth escape wheel.


The Practical Clock Movement goes a stage further and has a more traditional layout with fewer gears and a greatly reduced driving weight, but the mechanism incorporates several assemblies in common with the Demonstration Clock Movement, including the escape wheels.  The design of a clock case is left to the builder; it can be a traditional long-case clock or installed on a wall-mounted bracket.


With text, IsoMec diagrams and colour photographs.  Includes MP221A. 


Ref:  MP221   Set of 3 booklets, total 56 Pages.   Price:  16.00