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Weak springs

Posted: Sun May 17, 2009 1:49 am
by MrBlister
When I think about it, knives that are in a pre-formed display usually have the blades ""partially open". Resting in a formed cradle. Seems to me that thru the years, that spring would weaken. Wonder what the AAPK consensus is?

MEDICAL NOTE:
Altho its NOT on the instruction sheet.... Viagra is to be ingested ORALLY for best results.

Re: Weak springs

Posted: Sun May 17, 2009 2:09 am
by philco
I have read some previous discussions regarding storing knives in a partially opened position such as they often are in store displays. The consensus seems to be that if they are positioned so that the backspring is under pressure it will eventually weaken the spring. A knife with half stops can be left with the blade opened to the half stop position without causing any significant deformity to the springs. Otherwise it should either be stored fully opened or fully closed so as to aleviate the pressure on the backspring.

As to the other issue, not only should it be taken orally for best results, but frequently as well. :mrgreen:

Phil

Re: Weak springs

Posted: Sun May 17, 2009 2:22 am
by Owd Wullie
MrBlister wrote:
MEDICAL NOTE:
Altho its NOT on the instruction sheet.... Viagra is to be ingested ORALLY for best results.
Voice of experience? Care to elaborate? ::sneaky::

Re: Weak springs

Posted: Sun May 17, 2009 3:26 am
by knife7knut
MrBlister wrote:
MEDICAL NOTE:
Altho its NOT on the instruction sheet.... Viagra is to be ingested ORALLY for best results.[/color][/b]
A bit off topic but kind of funny.When our oldest granddaughter Kira turned 16 my wife and I took her to a very fancy restaurant as her present.Kira is a sweet girl but can be a bit slow on the uptake;especially when my wife and I start joking around(it's a generational thing).
Anyway in the course of the meal Kira mentioned to my wife that because of her irregularity in her monthly cycles,it was decided to put her on birth control pills in an attempt to alleviate the problem.She has always been pretty open with us and is not hesitant to discuss virtually anything.
Which gave me an opportunity to hit her with the classic line:I asked,"So Kira;did they instruct you in the proper use of the pill?" She replied seriously,"Oh yes grandpa." to which I replied,"No; I don't think they did.Would you like me to explain the proper use of the pill?" She replied that she did.
"Well Kira;the PROPER use of the pill is to take it and hold it firmly between your knees and whatever you do DON'T let it fall!" It took her a minute or so to get what I was telling her and for the first time she actually blushed!

Anyway back on topic.My own opinion is that if a spring is left in a loaded(under tension)position it will eventually tend to assume that shape on a permanent basis.Whether the tension will be gone is a matter of conjecture.An automobile leaf spring which is constantly under tension will eventually lose it's arch to a degree but still has plenty of tension.Try to remove one and you will find out firsthand!

Just my twopence.

Re: Weak springs

Posted: Sun May 17, 2009 3:41 pm
by jfarmer
The folks at Case say it doesn't hurt the springs to leave a knife in the partially open position. I don't take any chances though so I leave mine fully closed. I leave my automatics in the fully open position to keep pressure off the spring.

James

Re: Weak springs

Posted: Sun May 17, 2009 3:53 pm
by MrBlister
::hmm:: Now lemme thunk bout this .... If I were CASE, what would I answer to that question, if I sold/shipped a couple o thousand knives per day, with the blades partially open? :?

Re: Weak springs

Posted: Sun May 17, 2009 4:22 pm
by BIGHEAD
Don't know the correct answer but I have many in displays partially opened(all brands) with seemingly no ill effect to this point.

Re: Weak springs

Posted: Sun May 17, 2009 4:46 pm
by jfarmer
MrBlister wrote:::hmm:: Now lemme thunk bout this .... If I were CASE, what would I answer to that question, if I sold/shipped a couple o thousand knives per day, with the blades partially open? :?
I was merely relaying what Case has to say about it.

James

Re: Weak springs

Posted: Sun May 17, 2009 6:17 pm
by Owd Wullie
I've no experience with messing up knife springs, except by using them. I keep my junk in the closed position if I'm not doing something with it.

I used to haul super heavy loads. I was driving a rolling road block most of the time.

When it came time to park for the night, I always lowered the trailer so it took some of the weight off the springs. Just seemed like the right thing to do because with the amount of "smash" as we called it on that rig in a static mode, just seemed to me that it wasn't the best thing you could do to a piece of equipment.

It was hard enough changing the springs on that 9 axle trailer when it was unloaded and it was a REAL bear changing them with a load on it. We still broke a lot of springs but that pretty much came with the territory due to the normal abuse that thing got.

Re: Weak springs

Posted: Sun May 17, 2009 6:52 pm
by MrBlister
$$$$$$$ serenades Wullie with THE best song ever writ$$$$$$$$$$



CONVOY by CW McCall

Hey Sod Buster, listen
You wanna put that microbus in behind the suicide jockey?
Yeah, he's haulin dynamite
He needs all the help he can git

Well we laid a strip fer the Jersey Shore
An' prepared to cross the line
I could see the bridge 'as lined with bears
But I didn't have a doggone dime
I sez Pig-Pen, this here's the Rubber Duck
We just ain't a gonna pay no toll
So we crashed the gate doin' ninety-eight
I sez, let them truckers roll, 10-4

Re: Weak springs

Posted: Sun May 17, 2009 7:54 pm
by Owd Wullie
Believe it or not. CW McCall was running I-40 one night and talking on the CB. A buddy of mine and I wore him out so bad givin him a hard time that he said we weren't going to be in his new song.. Broke our hearts.. NOT.

Re: Weak springs

Posted: Sun May 17, 2009 8:15 pm
by useem
i guess the springs would weaken eventually, but it might take MANY years. Unless quality is suspect to begin with.

Re: Weak springs

Posted: Sun May 17, 2009 10:53 pm
by MrBlister
Owd Wullie: >>>>I used to haul super heavy loads. I was driving a rolling road block most of the time.

When it came time to park for the night, I always lowered the trailer so it took some of the weight off the springs. Just seemed like the right thing to do because with the amount of "smash" as we called it on that rig in a static mode, just seemed to me that it wasn't the best thing you could do to a piece of equipment.



Wullie?...Was that back when ya were takin yer girlfriend to the ice cream shop ??? plse advise

Re: Weak springs

Posted: Mon May 18, 2009 12:43 am
by Owd Wullie
She was my girl friend, but I hear she's in Brown town now. She had a thing for old knife guys, that's why she left.

I ain't old.

Enjoy.