From: Fred Martin (mung@in-touch.net)
Date: Wed Jul 23 2003 - 05:42:05 PDT
I've seen them designed with a hole large enough to pass the chain
through and a slot going down from it...the slot is long enough to allow
the chain to clear the hole by an 1/8" or so...then a plastic cap is
inserted into the hole...so the chain couldn't come out. Neat and safe.
Fred Martin
m35products wrote:
> Jim:
>
> I don't have a picture handy. But they are easy to figure out:
>
> Take the size of the chain link that will typically be used. Make slots that
> will allow the link to pass through, in the shape of a cross. The
> left-to-right dimension should allow one link to pass through. The vertical
> slot should be deeper at the bottom of the cross, so that the link will drop
> down and gravity will hold it in the bottom of the slot. Make all slots
> slightly bigger than the links.
>
> Go down to the nearest coffee shop where the telephone company splicers hang
> out. At the rear of every splicing rig there will be two of these slots, for
> hooking up the safety chains, while towing a compressor. Sneak up on a
> truck, and get a quick picture.
>
> ----- Original Message -----
> From: "Jim Newton" <jnewton@laurel.com>
> To: "Military Vehicles Mailing List" <mil-veh@mil-veh.org>
> Sent: Tuesday, July 22, 2003 7:29 PM
> Subject: [MV] Towing Chain Keyhole References Needed...
>
>
>
>>Hi All...
>>
>>On tow trucks and maybe military towing vehicles, there are often
>>holes cut into steel plate that allows a chain end to be inserted and
>>dropped down into the slot to lock the chain.
>>
>>Sometimes these are shaped like a crucifix with rounded ends on the
>>slot openings.
>>
>>If you have a piece of equipment in your yard that has one of these
>>holes for a chain to lock into, could you take a little quickie
>>digital picture of it and email it to me? Even a sketch would be
>>good.
>>
>>This is for a safety chain plate that I am building for use in
>>conjunction with a military medium towbar, and I want to see
>>alternative designs used on these chain keyholes.
>>
>>I appreciate it!
>>
>>--
>>
>>Jim "Ike" Newton
>>
>> o 1984 M1007 CUCV Military Suburban
>> 6.2 Liter (378 CID) Turbo-Diesel Engine
>> 5/4 Ton Cargo Capacity, 4WD
>>
>> o 1971 M35A2 Military Troop/Cargo Truck "Deuce and a Half"
>> 478 CID Turbo-Diesel Multi-Fuel Engine
>> Air Shift Front Axle
>> 2 1/2 Ton Cargo Capacity, 6WD
>>
>> See These Trucks at www.CUCV.NET
>> Keyword Searching of 22,000 Electronic TMs at www.MILDOCS.com
>>
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>
>
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