Tyneside Society
of Model and Experimental Engineers
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Stu Davidson & Malcolm Phillips have recently worked together to complete 2 boilers for the 5" Adams 4-4-2 "Compbyne". Malcolm made the bits & flanged the plates, Stuart did the silver soldering. Malcolm described this process as 'the nerve racking bit, though Stuart makes it look easy'. Malcolm recorded the process in a series of chronological photos, accessed via the links above, words & pictures are both Malcolms. Either boiler may be shown at the various stages, accounting for any minor differences you may spot.

Stuart has been doing the job a long time and knows how not to burn his fingers. But a beginner should be aware of the dangers of hot metal, flames on gas burners, the dangers from inadequate ventilation and the risk of fire and explosion from not working in a methodical manner and of burns due to not wearing protective clothing. Stuart used easyflow no 2 throughout but this is now unavailable. The newer silver solders do not contain cadmium, as well as causing possible heavy metal poisoning there are concerns over its carcinogenic properties.

Below are some pictures of the finished boilers.





This view shows the ends of screw stays for the fire hole door.

To see how these boilers were constructed please click on 'first heating' above.



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