Whistle making, particularly the valve

Whistle making, particularly the valve

This topic has 6 replies, 3 voices, and was last updated 27 January 2016 at 16:19 by Andydextrous.

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27 January 2016 at 11:55 #222802
Andydextrous
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@andydextrous
Hi, does anyone know where I might find a drawing/design, for a whistle that incorporates a valve in the base below the bell. It is the design of the valve that I don't understand – the sort that has a pin operated by a lever. Commercial items aren't to the right scale for what I want. Cheers, Andy
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27 January 2016 at 11:55 #32640
Andydextrous
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@andydextrous
27 January 2016 at 13:20 #222811
JasonB
Moderator
@jasonb
Most are just like a car engine valve – tapered seat and a matching angle on teh head of teh valve, valve stem passes up through teh whistle body where it can be pressed down. What scale are you looking for?
27 January 2016 at 14:27 #222818
Andydextrous
Participant
@andydextrous
Thanks, that makes sense except that the valve is horizontal. There must be some complicated chambers to get the inlet and the outlet vertical. 4 inch scale is too small and 6 inch slightly too big.
27 January 2016 at 15:17 #222824
MichaelR
Participant
@michaelr
As Jason says, just like a car engine valve, hope this helps

Edited By MichaelR on 27/01/2016 15:18:00
27 January 2016 at 16:12 #222829
JasonB
Moderator
@jasonb
Michael's drawing is what you need not unlike a stopcock where the water pressure keeps the valve on its seat. I was thinking of a vertical one

Worth looking about a bit as like the engines whistles came in different sizes so you may find a 6" scale one for a tractor is smaller than one for a 6" road loco.
27 January 2016 at 16:19 #222832
Andydextrous
Participant
@andydextrous
Thanks. I know what I need to achieve now. I couldn’t find anything through Google.
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