[AT] Thanks!

[Recentjester at aol.com]

thought it was a b&o  (break out bar) were in use in shipyards  too
 
 
In a message dated 10/9/2009 8:49:54 A.M. Central Daylight Time,  
charliehill at embarqmail.com writes:

Steve  O,  I used to work for a logging company.  Their mechanic was one of 
 
the best I've ever seen but having quit school at a very young age was  
limited to what he could observe and learn by doing.  One day he was  under 
a 
piece of equipment, in an awkward position doing a something  greasy and 
awkward.   Two guys that ran a little small time pulp  wood outfit came in 
with the drive shaft out of their only pulpwood  truck.  It was a true 
Marcell Ledbetter type truck.  They had  asked to use the vice and some 
tools 
to get the cross out of the  shaft.

They were over there pecking away as hard as they could swing a  4# or so 
hammer.  Plink, plink, plink..........plink, on and on for  several 
minutes. 
I was standing by the piece of equipment and heard Bill  mumbling about the 
noise.  All of a sudden Bill's creeper came flying  out from under the 
equipment.  He  jumped up, hurriedly walked  over to the fellows, gave them 
a 
sort of a shove with his arm as he  said,   "GET OUT OF THE WAY, WHAT YOU 
FELLERS NEED IS A BIGGER  #$%&^%^&%$ HAMMER".  Then the took the short 
handled 10  #  or so hammer he had in his other hand and a drift pin and 
hit 
the  cross one good lick.  It fell on the floor.  He slid back under the  
piece of equipment without another word and went back to work.

This  guy had forarms like Popeye.  I've seen him swing a 16 lb hammer for  
what seemed like hours with someone holding a big drift pin for him with a  
huge set of channel lock pliers.
Charlie


----- Original  Message ----- 
From: "Stephen Offiler" <soffiler at gmail.com>
To:  "Antique tractor email discussion group"  
<at at lists.antique-tractor.com>
Sent: Friday, October 09, 2009 9:10  AM
Subject: Re: [AT] Thanks!


I gotta think that one over but I  think we're talking transfer of
momentum  here, which is just mass x  velocity (not velocity squared)
so mass takes on far more importance.   Thanks for the reminder guys.

SO


On Fri, Oct 9, 2009 at 8:43  AM, charliehill <charliehill at embarqmail.com> 
wrote:
> Steve,  I'm glad you posted that reply because I can only back up what I'm
>  about to say from observation over a career of working around heavy
>  equipment. You can take an 8 lb hammer, put it on a handle 10 feet  long
> and let a gorilla swing it until the cows come home and it will  never 
> knock
> the pin out of that D-9 or the boom pin out of a  big excavator. A 16
> pounder with a good man on the other end will  knock it out. I don't
> remember the math or physics nor will I attempt  to explain why but that's
> the way it works. The small hammer will  bounce off without transfering 
the
> mass to the  pin.
>
>
> ----- Original Message -----
> From: "Steve  Sewell" <sewell at ohio.edu>
> To: "Antique tractor email discussion  group" 
> <at at lists.antique-tractor.com>
> Sent: Friday,  October 09, 2009 8:16 AM
> Subject: Re: [AT]  Thanks!
>
>
>>
>>
>> --On Friday,  October 09, 2009 7:20 AM -0400 Stephen Offiler
>>  <soffiler at gmail.com> wrote:
>>
>>> That would be my  solution. I don't have anything bigger than 8# and
>>> haven't  found anything yet that I'd want it for. Kinetic energy is
>>> 0.5  x mass x velocity squared. It's all about the speed, folks. I
>>>  can accelerate the 8# a lot better than I could hope to do a  16#.
>>>
>>> Steve O.
>>>
>>  Steve O. : I understand the engineer in you about kinetic energy. I  
also
>> know you well enough that we have around the same mass and  energy of
>> swing.
>> The former Cat, dealer mechanic in me  knows we can swing that 16# 
sledge.
>> I
>> have the bad  back to prove it. )-:
>> A D-9 track master pin won't ever get up  enough energy to laugh at an 8 
#
>> hammer. But I have taken many out  with a 16# with a helper holding the
>> B&O.
>> Of  course it that's me twice as many blows as someone twice my size.  
(-;
>>
>> Note. A B&O is a form of a sledge hammer. Same  size handle. Head is 
>> around
>> a foot long on each side,  around 2" in diameter. About the same size as 
a
>> track master pin.  Called a B&O because it was used to help drive 
railroad
>> track  pins. Set the B&O on the in and drive it with the  sledge.
>>
>> -steve
>>
>> Steve  Sewell
>> Albany, Ohio USA
>> sewell at ohio.edu
>>  sewell at atis.net
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