I believe one of the first companies to make hydraulic coupler break-away couplers was Brunning. In 1949-50 is when some of them first appeared on the Minneapolis Molines as a 3 piece coupler, two male ends and a connecting sleeve in the middle. The connecting sleeve had a bracket that fit into a support iron to allow movement. Some of the AC's had the male end on the tractor, male end on the ram and connected with the sleeve. Some place I saw a picture in an AC manual with a strap and chain to hold the bracket. It must not have worked real well for AC as I don't think it was used long. The Brunning couplers were used on MMs until the mid 1960s when Pioneer was getting more popular. They were also used on some of the 4000-5000 Fords.
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Today's Featured Article - Product Review: JB Weld - by Staff. JB Weld is basically an epoxy glue that does an exceptionally good job of bonding to cast iron and steel along with several other materials. As I mentioned, it is so common that I have yet to buy a tractor that did not have JB Weld used somewhere. It is sometimes used so well you can't tell its there and other times used as a sloppy quick fix. Finding where and how it can be used correctly is key to whether you are using it as an "inelegant hack" or an integral solution to difficult and expens
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