[modeleng] Re: unknown thread
- From: "Phill Smith" <steam@xxxxxxxxxxxxxx>
- To: <modeleng@xxxxxxxxxxxxx>
- Date: Fri, 15 Oct 2004 23:41:50 +0800
No........ <GRIN>
But I have a set of BSW taps and dies in 1/32" steps starting from 1/16"
through to 1/4". They're not listed in any of my "standard" tables... Though
my 18th edition Machinery's Handbook does give 1/8" and 3/16" BSW sizes. It
beats me where my grandfather got them from.... Made by Totem I think.......
Cheers,
Phill.
----- Original Message -----
From: "alanjstepney" <alan@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>
To: <modeleng@xxxxxxxxxxxxx>
Sent: Friday, October 15, 2004 7:18 PM
Subject: [modeleng] Re: unknown thread
> (Use a big enough spanner and 1/4" BSF will do for any of 'em.)
>
> Whilst talking about unusual threads, there was a Whitworth for microscope
> and telescope eyepieces, and similar optical equipment. It was probably
also
> used on anything where a very fine thread on a large diameter tube was
> required.
> In that respect it is different from the Whitworth Instrument thread which
> is of small diameter.
>
> Has any one any details of this large Whitworth thread?
> alan@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
>
> www.alanstepney.info
> Model Engineering, Steam Engine, and Railway technical pages.
>
>
> ----- Original Message -----
> From: "Tim Rickard" <the_viffer@xxxxxxxxxxx>
> To: <modeleng@xxxxxxxxxxxxx>
> Sent: Friday, October 15, 2004 11:53 AM
> Subject: [modeleng] Re: unknown thread
>
>
> Terry both M6 and 0BA are 6mm dia 1 mm pitch but on account of people
hating
> to leave well alone they are on account of the different thread form not
> compatible.
>
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