Re: Metric or standard?

2003-09-20 Thread Paul Anderson
Landon Solomon wrote:

So... can you tell us why?

This thread predates much.  As I recall, it is contemporary with whitworth.



Re: Metric or standard?

2003-09-19 Thread Landon Solomon
Thank you very much!

Now I'm fighting the urge to start using them everywhere...  =|  (don't have 
a good set of taps for any other system, use american because it's easy to 
get...)  My Live steam Garratt will be built on Roundhouse engines so it'd 
make sense to continue that theme...  : ]

Trot, the fox who's horrible at making decisions...  (what can I say, I'm a 
model Libra.)

|  /\_/\   TrotFox \ Always remember,
| ( o o ) AKA Landon Solomon\ "There is a
|  >\_/< [EMAIL PROTECTED] \ third alternative."
From: "Mike Chaney" <[EMAIL PROTECTED]>

Trot asked:-

> So... can you tell us why?

See http://www.bhi.co.uk/hints/bathrd.htm

Mike (an Associate Member of the BHI)
_
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Re: Metric or standard?

2003-09-19 Thread Arthur

- Original Message -
From: "Clark Lord" <[EMAIL PROTECTED]>
To: "Multiple recipients of sslivesteam" <[EMAIL PROTECTED]>
Sent: Friday, September 19, 2003 12:26 PM
Subject: Re: Metric or standard?


> Royce Woodbury wrote:
>
> > Clark Lord wrote:
> >> I also have a small (3 inches long) Channel Lock pliers and a small (3
> >> inch long) Crescent Wrench.
>
> > Where'd you find those items, Clark ?  Seems I ran into someone at a
> > steamup who had a very small crescent wrench described as "very hard to
> > find" item.  Thanks.
>
> The Channel Lock pliers were given to me by John Wieland and the
> crescent wrench is a novelty item in the basket at the check out count
> at Harbor Freight.  I also seem to recall that Sears has them as well.
>
> I would guess a large tool dealer has the small Channel lock pliers.
>
> No you can't have mine.
>
> Clark
>
>

 


Re: Metric or standard?

2003-09-19 Thread Clark Lord
Royce Woodbury wrote:

Clark Lord wrote:
I also have a small (3 inches long) Channel Lock pliers and a small (3 
inch long) Crescent Wrench. 

Where'd you find those items, Clark ?  Seems I ran into someone at a 
steamup who had a very small crescent wrench described as "very hard to 
find" item.  Thanks.
The Channel Lock pliers were given to me by John Wieland and the 
crescent wrench is a novelty item in the basket at the check out count 
at Harbor Freight.  I also seem to recall that Sears has them as well.

I would guess a large tool dealer has the small Channel lock pliers.

No you can't have mine.

Clark




Re: Metric or standard?

2003-09-19 Thread Royce Woodbury


Clark Lord wrote:

I also have a small (3 inches long) Channel Lock pliers and a small (3 
inch long) Cresent Wrench. 
Where'd you find those items, Clark ?  Seems I ran into someone at a 
steamup who had a very small crescent wrench described as "very hard to 
find" item.  Thanks.

royce in SB



Re: Metric or standard?

2003-09-19 Thread Keith Taylor

- Original Message - 
From: "Clark Lord" <[EMAIL PROTECTED]>
Subject: Re: Metric or standard?


> Another handy item is hemostats in various lengths and curvatures.
> Absolutely needed when you have to hold a small nut way down inside
> something.

Hi Clark & Steve,
Clark's recommendations are all top shelf! The only thing I would add to
his list is a set of really good tweezers! Penn- Tool in Maplewood , NJ
as well as MSC and other Industrial suppliers, will have most of the
tools Clark mentions. Penn also carries the full line of Swiss DuMont
tweezers, as used by Watchmakers, surgeons etc. they are non- magnetic
stainless steel, and come with points from rugged, to so fine you need a
magifier to see them! The small ignition size wrenches are also
available from S-K (the makers) and I got mine through MSC in New York.
Another too I found indispensable, when asembling an Aster kit, is a big
magnet! (or a wife with really good eyesight and thin slender fingers!)
as those teeny weeny little fasteners have a habit of jumping up off the
work bench of their own volition, and scattering all over the floor! My
wife and I spent an amazing amount of time on the floor, with a strong
light and a magnet fishing for tiny nuts and bolts!
Keith Taylor

 


Re: Metric or standard?

2003-09-19 Thread Mike Chaney
Trot asked:-


> So... can you tell us why?
> 
> Seems like there are already a good number of systems out there...  Why was 
> this one created?

See http://www.bhi.co.uk/hints/bathrd.htm

Mike (an Associate Member of the BHI)
 


Re: Metric or standard?

2003-09-19 Thread Landon Solomon
So... can you tell us why?

Seems like there are already a good number of systems out there...  Why was 
this one created?

Trot, the semi-logical, fox...

|  /\_/\   TrotFox \ Always remember,
| ( o o ) AKA Landon Solomon\ "There is a
|  >\_/< [EMAIL PROTECTED] \ third alternative."
From: "Mike Chaney" <[EMAIL PROTECTED]>

Jim rightly wrote:-

> B.A. is "British Association" - a British (surprise surprise!) thread
> system used for small sizes particularly in the British electrical
> industry.  It is a number system, going from 0BA (=6mmOD) through to 16 
BA
> (Tiny!).  In general only the even numbers are in general use -0, 2, 4, 
6,
> 8, 10.

In particular, however, 5BA is (almost) right for threading 1/8" rod and 
7BA for
3/32".  For 1/16", one can indeed use an even size - 10BA.  Many models are 
made
with special hex-head screws where the head is one size smaller to give the 
same
strength with a neater head.

BA is actually a metric system, with 0BA similar to M6, but each size is 
1/9 of
the next larger in a geometric progression down to 26BA (I haven't worked 
out
how small this is!)  The thread angle is 47.5 degrees, as opposed to ISO
Metric's 60 degrees and Whitworth's 55 degrees.

FWIW

Mike
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Re: Metric or standard?

2003-09-19 Thread Mike Chaney
I wrote, whilst my brain wasn't properly plugged in:-

> BA is actually a metric system, with 0BA similar to M6, but each size is 1/9
of  the next larger in a geometric progression down to 26BA

I meant "each size is 9% smaller than the last"   (I think!)

Mike



 


Re: Metric or standard?

2003-09-19 Thread Mike Chaney
Jim rightly wrote:-

> B.A. is "British Association" - a British (surprise surprise!) thread
> system used for small sizes particularly in the British electrical
> industry.  It is a number system, going from 0BA (=6mmOD) through to 16 BA
> (Tiny!).  In general only the even numbers are in general use -0, 2, 4, 6,
> 8, 10.

In particular, however, 5BA is (almost) right for threading 1/8" rod and 7BA for
3/32".  For 1/16", one can indeed use an even size - 10BA.  Many models are made
with special hex-head screws where the head is one size smaller to give the same
strength with a neater head.

BA is actually a metric system, with 0BA similar to M6, but each size is 1/9 of
the next larger in a geometric progression down to 26BA (I haven't worked out
how small this is!)  The thread angle is 47.5 degrees, as opposed to ISO
Metric's 60 degrees and Whitworth's 55 degrees.

FWIW

Mike

 


Re: Metric or standard?

2003-09-18 Thread Clark Lord
I use Sears automotive ignition wrenches which are available in two 
different sets.  SAE and Metric.  Each set has 10 wrenches which are 
open end on one end and box on the other.

I use the metric nut drivers that Micro Mark sells, the Wiha brand.

For BA I use the ones sold by Sulphur Springs Steam Models.

I have both Aster and British engines.

For screwdrivers I use the Wiha brand also.  Expensive but tough.

I also have a small (3 inches long) Channel Lock pliers and a small (3 
inch long) Cresent Wrench.  I find I use the Channel Locks in the field 
but not at the bench where I usually have the correct wrench at hand.

Another handy item is hemostats in various lengths and curvatures. 
Absolutely needed when you have to hold a small nut way down inside 
something.
--
  Cheers
  Clark

Clark B Lord - Las Vegas, Nevada   USA
Las Vegas Live Steamers - Gauge 1 live steam

steve speck wrote:
Thanks Jim,  yes it is a Aster Mikado.  It looks like to have a good set 
of tools you need a little bit of everything.  Where are the best places 
to find these specialty tools?  Thanks again,  Steve Speck.




Re: Metric or standard?

2003-09-18 Thread steve speck
Thanks Jim,  yes it is a Aster Mikado.  It looks like to have a good set of 
tools you need a little bit of everything.  Where are the best places to 
find these speciality tools?  Thanks again,  Steve Speck.

At 12:15 PM 9/19/03 +0800, you wrote:
Hi Steve.

B.A. is "British Association" - a British (surprise surprise!) thread 
system used for small sizes particularly in the British electrical 
industry.  It is a number system, going from 0BA (=6mmOD) through to 16 BA 
(Tiny!).  In general only the even numbers are in general use -0, 2, 4, 6, 
8, 10. I think Roundhouse use 2, 4, 6, and 8, all standard BA sizes.   I 
think their fillers, safety valves etc are another slightly odd English 
series the "Model Engineer" series.  These are an imperial size series 
either 32 tpi or 40 tpi.
I would suggest that you get a small set of even BA spanners or tube 
spanners, + a small adjustable wrench for fillers etc.

The Mikado is a different proposition - are we talking an Aster Mikado, or 
some other brand?  If it is an Aster then it is Metric but Aster use a 
number of non standard metric sizes.  Sorry to be unhelpful there.

Jim Gregg.

At 10:32 PM 9/18/03 -0500, you wrote:
I own a RH #24 and a Mikado.  I plan to start looking for small tools to 
use on Loco's.  Should I get metric or standard.  I have also heard of 
the term BA  wrenches,  what does this refer too?  Thanks,  Steve Speck




Re: Metric or standard?

2003-09-18 Thread Alison and Jim Gregg
Hi Steve.

B.A. is "British Association" - a British (surprise surprise!) thread 
system used for small sizes particularly in the British electrical 
industry.  It is a number system, going from 0BA (=6mmOD) through to 16 BA 
(Tiny!).  In general only the even numbers are in general use -0, 2, 4, 6, 
8, 10. I think Roundhouse use 2, 4, 6, and 8, all standard BA sizes.   I 
think their fillers, safety valves etc are another slightly odd English 
series the "Model Engineer" series.  These are an imperial size series 
either 32 tpi or 40 tpi.
I would suggest that you get a small set of even BA spanners or tube 
spanners, + a small adjustable wrench for fillers etc.

The Mikado is a different proposition - are we talking an Aster Mikado, or 
some other brand?  If it is an Aster then it is Metric but Aster use a 
number of non standard metric sizes.  Sorry to be unhelpful there.

Jim Gregg.

At 10:32 PM 9/18/03 -0500, you wrote:
I own a RH #24 and a Mikado.  I plan to start looking for small tools to 
use on Loco's.  Should I get metric or standard.  I have also heard of the 
term BA  wrenches,  what does this refer too?  Thanks,  Steve Speck





Metric or standard?

2003-09-18 Thread steve speck
I own a RH #24 and a Mikado.  I plan to start looking for small tools to 
use on Loco's.  Should I get metric or standard.  I have also heard of the 
term BA  wrenches,  what does this refer too?  Thanks,  Steve Speck