Allchin trunk stay

Allchin trunk stay

This topic has 2 replies, 2 voices, and was last updated 25 May 2019 at 16:55 by JasonB.

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25 May 2019 at 15:32 #2917
John Farmer 5
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@johnfarmer5
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25 May 2019 at 15:32 #410921
John Farmer 5
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@johnfarmer5
I am working towards construction of the boiler for a 1.5" Allchin. Looking ahead I have been studying the text and drawings and wanted to clarify something. The drawings (6 & 9) refer to a stay for supporting the end of the trunk guide which extends back from the cylinder. There is a reinforcing pad inside the boiler, which I have located, and then there is a curved angle bracket riveted above this pad on the outside of the boiler. There is then a short stay from this bracket to a lug under the trunk guide. It is the curved angle bracket I am concerned with since, if it is riveted to the boiler it must be fitted before assembly of the boiler, but I cannot find any dimensions of the bracket or any measurements showing its location. Can anyone advise on these points please?

Thanks,

John
25 May 2019 at 16:55 #410930
JasonB
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@jasonb
Yes I would say that is the best way to fix it by riviting and then running silver solder around it and the rivits.

The location of the pad is given on the boiler drawing sheet 9, a bit of calculation and sketching should get the angle about right and the packing shown on sheet 6 will take up any slight error lengthways.

Bracket is not much more than a plate with the lower edge cut to follow the boiler, top suit the lug on thetrunk guide and something pleasing to the eye to join the two. the four holes are best spotted through from the angle and lug on assembly
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