[TheForge] Treadle Hammer Springs; shock absorber?

[Dave Smucker]

Bob, What you say is true, but it also is important to limit the shock to 
your leg and the hammer too.  As some of you know, Clay hurt himself, his 
hand, on one of is early treadle hammers.  At that time he was using one of 
the early models, and didn't have the experience of what area of the hammer 
might have failure problems.  (In the later designs he worked very hard to 
limit weld design failure.)

In fact this hammer had some poor quality welds and while using the hammer 
he heard a strange noise.  This was in fact a weld failure.  He put his hand 
on the anvil and bent down to look at the treadle and linkage.  While in 
this position another weld came loose and the whole treadle linkage failed 
dropping the hammer head on his hand.  It was a rather serious injury.  This 
is one of the main reason that Clay is so hard on anyone working with their 
hands under the treadle hammer head.

Dave Smucker


>From: schade at acegroup.cc
>Reply-To: Sponsored by ABANA <theforge at mailman.qth.net>
>To: Sponsored by ABANA <theforge at mailman.qth.net>
>Subject: Re: [TheForge] Treadle Hammer Springs; shock absorber?
>Date: Wed, 21 Mar 2007 15:38:29 -0500
>
>
>On Mar 21, 2007, at 1:23 PM, Dave Smucker wrote:
>>   I also agree that Clay says NOT to let the treadle hit the floor, too 
>>much shock to the leg.  Clay should know -- he has only used his a few 
>>million times.
>>
>>Dave Smucker
>>
>
>
>the way I remember the directions on Clay's plans is that he said to adjust 
>your linkage so that the treadle stops just before hitting the floor. The 
>reason given was that at that point your leg would be fully extended and 
>your power stroke would be maximized.
>
>Bob
>
>_______________________________________________
>Manage membership or unsubscribe at:
>http://mailman.qth.net/mailman/listinfo/theforge
>theforge mail list group photo site is
>http://www.photoaccess.com
>Login:  blacksmithblacksmith at hotmail.com
>password:  anvil
>___________
>
>