From: m35products (m35prod@optonline.net)
Date: Fri Aug 19 2005 - 23:17:45 PDT
Blimp anchor?
apb
----- Original Message -----
From: "Douglas B Rupp" <rupp@gnat.com>
To: "Military Vehicles Mailing List" <mil-veh@mil-veh.org>
Sent: Saturday, August 20, 2005 1:50 AM
Subject: Re: [MV] How do you unscrew an Army anchor?
> Bolts are threaded into steel anchor and bear on steel anchor, so no
jacking
> possible. The only thing the bolts appear to do is prevent the aluminum
> thing from twisting.
>
> Forklift loaded it on a dump truck and I dumped it out at my place, then
> used a medium sized excavator to roll, push, pull it into place.
>
> -----Original Message-----
> From: MV [mailto:MV@dc9.tzo.com]
> Sent: Friday, August 19, 2005 10:23 PM
> To: Douglas B Rupp
> Cc: Military Vehicles Mailing List
> Subject: Re: [MV] How do you unscrew an Army anchor?
>
> OK,
>
> I'll take a wing at this. If the bolts go through the aluminum and are
> threaded in the aluminum and the end of the bolts bear on the steel, and
do
> not thread into it, then those bolts are probably used to remove the
> aluminum cones that clamp the cable. If they are used in that manner,
they
> would be considered jack screws.
>
> Consider this and see if it makes any sense?
>
> I don't know how big this tapered cone is, but I doubt that they would use
> something like that as a giant screwed in plug.
>
> Also, if they are using a tapered fitting to grab a cable, then the normal
> way to do that would be to have the pull on the cable attempt to pull the
> wedges deeper into the tapered hole. Hence the harder the pull, the more
> clamping action on the cable.
>
> How did you manage to move that anchor? Load it on a trailer, etc?
>
> Dave
>
>
>
> Douglas B Rupp wrote:
> >
> >
> > -----Original Message-----
> > From: Douglas B Rupp [mailto:rupp@gnat.com]
> > Sent: Wednesday, August 17, 2005 11:26 AM
> > To: 'Military Vehicles Mailing List'
> > Subject: How do you unscrew an Army anchor?
> >
> > I bought a 25000 lb anchor at a Government Liquidation auction a while
> back.
> > I thought at first it was Navy but a) the color is wrong, b) it
> > doesn't appear to have ever been in sea water, c) the shape is unusual.
> >
> > A friend (who was very persuasive) claims it's an Army "dead head"
> > used on (for example) a Ranger training course to counterbalance an
> > suspended cableway or something similar.
> >
> > I want to use it for a similar purpose (couterbalance) but I can't get
> > the top off. The anchor is made of steel filled with cast iron with a
> > hemispherical bottom and a 6' tall 10" diameter post sticking up. In
> > the top of the post there's a 2 piece funnel shaped *aluminum*
> > clamshell with 6 recessed allen headed bolts in a circle around the
> > edge of the clamshell top. There's a 1-3/8" hole at the bottom of the
> > "funnel" and wire rope marks on the tapered sides, so it seems clear
> > that the clamshell is supposed to come out and apart so that a wire
> > rope with a knob on the end can be inserted.
> >
> > I got the bolts out and the funny thing is that the bolt heads are
> > resting on steel anchor, not aluminum, so the bolts aren't holding
anthing
> *down*.
> > The only other purpose they could serve is to prevent the aluminum top
> > from rotating. So the only conclusion I can come to is that the
> > aluminum top is like a gigantic bolt that unscrews from the anchor
> > once 6 smaller bolts are removed. I made an unscrewing tool and put
> > about 600 ft-lbs of torque on the top but it didn't budge. The next
> > step would be lubrication, heat and more torque.
> >
> > I'd appreciate hearing from anyone who has seen one of these things
> > and knows how they work.
> >
> > --Douglas Rupp
> >
> >
> >
> >
> > ===Mil-Veh is a member-supported mailing list=== To unsubscribe, send
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> > <ack@mil-veh.org>
> >
>
>
>
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