[TheForge] OT -12v motors

[blakkpawss at yahoo.com]

I thought Shart was the technical term for when you try to fart but sh*t yourself?
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-----Original Message-----
From: peter fels <artgawk at thegrid.net>
Sender: theforge-bounces at mailman.qth.net
Date: Wed, 22 Jun 2011 18:07:39 
To: Blacksmithing List Sponsored by ABANA<theforge at mailman.qth.net>
Reply-To: Blacksmithing List Sponsored by ABANA <theforge at mailman.qth.net>
Subject: Re: [TheForge] OT -12v motors

"Sharts" is Jerry's amalgam of sharks and shafts and is just right!


On Jun 22, 2011, at 6:00 PM, Jerry Frost wrote:

> Rotating shafts or any narrow tooling is indeed really dangerous. It's easy 
> to take it too lightly and get careless. Drill bits in drill presses 
> grabbing a hank of long hair are one of the most common tales of woe I know 
> of. Heck, getting caught in the tooling of a rotary earth drill is almost 
> always a death sentence of a most grissly manner. We had posters with pics 
> of guys who'd gotten wrapped up in rotary tools in the drill shop, some 
> pretty awful, the guy wrapped up with the cable in the winch drum was 
> horrendous.
> 
> Anywho, keep clear of rotary stock. The guards like you describe are well 
> worth having, anything to keep you out of the sharts.
> 
> Jer
> ----- Original Message ----- 
> From: "Andrew Vida" <osan at netlabs.net>
> To: "Blacksmithing List Sponsored by ABANA" <theforge at mailman.qth.net>
> Sent: Tuesday, June 21, 2011 9:24 PM
> Subject: Re: [TheForge] OT -12v motors
> 
> 
>> 
>> 
>> On 6/21/2011 4:03 PM, Jerry Frost wrote:
>> 
>>> Guards on rotating machinery are good ideas but I've had things come 
>>> through
>>> some guards and the ones nothing can get out of make it really hard to 
>>> get
>>> things in through meaning you are working at BAD angles of attack. 
>>> Learning
>>> to work out of the potential ballistic tragectory(sp?) is your best bet. 
>>> As
>>> an added safety measure, especially when others are in the same area is 
>>> to
>>> put something behind you like a locker to act as a scatter shield.
>>> 
>> 
>> One of the most effective safety features come in basic design where the
>> shaft is completely enclosed right to the hub.  A friend of ours in
>> northern NJ, we can call him Dick, has a combination grinder/buffer of
>> the 5 or 10 hp variety (not seen in a long-ish time).  The grinder side
>> is just like a typical large frame pedestal grinder - short shaft
>> issuing from the left side of the motor housing.  On the buffer side,
>> the motor housing extends rightward at least a good 20 inches, the
>> shaft/hub protruding just a few inches onto which the buffs or wire
>> wheels are mounted.
>> 
>> I have found that while the wheels themselves pose a very definite
>> safety hazard, the rotating shafts are actually quite a bit more
>> dangerous.  Anything catching on the shaft will rapidly wind up and pull
>> in whatever is attached to the other end.  Think "farm equipment" and
>> "PTO shaft".  Bare shafting is hella-scary stuff.
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> 
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