[modeleng] Fw: Bernay's engine

----- Original Message ----- 
From: "Shep" <shep.28@xxxxxxxxxxxx>
To: "Allen Messer" <al_messer@xxxxxxxxx>
Sent: Friday, June 22, 2007 4:44 PM
Subject: Re: Bernay's engine


>I made a half-size version of a Stuart V10, from scratch, using the 
>drawings reduced 50%.    This entailed tapping a lot of 12 BA threads.   I 
>avoided breaking taps, using the following dodge:    I drilled the hole in 
>the milling machine, and then fitted a close-fitting round rod into the 
>hollow handle of an Eclipse pin vice.   This rod was held in the drill 
>chuck, and held the tap in the correct position.   I then used my fingers, 
>gently rotating the pin vice and tap around the stationary round rod. 
>It worked a treat and I broke no taps and provoked no profanity.
>
> The little engine was made out of brass (no castings in that size).    The 
> spoked flywheel was quite an interesting project, as was the tiny sliding 
> valve - particularly when I dropped it and two hours later, found it under 
> a cupboard!    The little engine runs at great speed on compressed air. 
> I have a picture, which I will send to anyone interested.
>
> Glad that the phishing season now seems to be over!
>
> Cheers!   Hubert
>
> ----- Original Message ----- 
> From: "Allen Messer" <al_messer@xxxxxxxxx>
> To: "Keith Spriggs" <kdspriggs@xxxxxxx>; "Bill Bowser" 
> <webowser@xxxxxxxx>; "Charles Brumbelow" <cbrumbelow@xxxxxxxxxxx>; "Hubert 
> Elffers" <shep.28@xxxxxxxxxxxx>; "Terry Lane" <tel@xxxxxxxxxxx>; "Jesse 
> Livingston" <fernj1@xxxxxxxxxxxxx>; "Bill Shields" 
> <bshields@xxxxxxxxxxxxx>; "Phill Smith" <steam@xxxxxxxxxxxxxx>; "alan 
> stepney" <alan@xxxxxxxxxxxxxxxx>; "Harry Wade" <hww@xxxxxxxx>; "Tony 
> Wells" <oaksfield@xxxxxxxxxxxxxxx>
> Sent: Friday, June 22, 2007 2:20 AM
> Subject: Re: Bernay's engine
>
>
>> "...nothing to it"?  Why, I can barely SEE a tap that
>> small much put my awkward fingers on it and expect it
>> to properly perform!!
>>
>>
>> Al
>>
> 

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