"Richard J Kinch" wrote in message
. ..

Roger Shoaf writes:

Is this what you are calling a *huge* force?

Yes. In the hands of ignorance like yours, it has killed people.

So lets see, you got a 50 pound force attempting to pull one corner of the
door up, and the upper part of the lower section is bolted to the
restrained lower part of the second section, and the other side of the lower
section is restrained by the track in the roller.

If I understand you, this circumstance is likely to be fatal. I surmise
that you suggest the *huge* 50 pound force is going to suddenly twist the
lower section of the door, cuff someone like me attempting the repair in the
face and send that ignorant schlub flying backwards where he hits his head,
impales himself or otherwise permanently runs afoul of the laws of physics.

For several reasons I disagree. First off, let us assume that a door
identical to the one pictured on your web page is horizontal fully supported
by the rollers in the track except one corner. I think you would have to
apply more than 50 pounds of force on that corner to cause a failure of the
partially restrained panel.

Secondly, If someone as ignorant as I, were to be unbolting a section of
sectional door, I would, in all likelihood , unbolt the bolts one at a
time. This would mean that the force attempting to send me to my death
would first make itself known long before its full fury would come crashing
in to my jaw. This would allow me to call upon all of the innermost desire
to avoid pain and death to restrain the edge of the door. I probably would
have to do this anyway as the force would jam the interlocking track.

On a side note, when you were plastering your pool, why didn't you rig a
chute to pour the plaster down into a waiting receptacle rather than
bucketing it?

--

Roger Shoaf

About the time I had mastered getting the toothpaste back in the tube, then
they come up with this striped stuff.