Pipe backbone plows

An additional comment, on the plows that were built for MM, Case and Ford, the hitch was not the same. It extended further forward, thus the plow was some 18" further back from the tractor which made them pull harder.

In 1954 when Oliver announced the new super series of tractors they also started building a new line of plows.

One of the new plows was the 4440. It was adjustable to 14 or 16 inch bottoms, and 4-5 or 6 bottom sizes.

Next they replaced the 4440 with the 4441 in 1958. The 4441 had three small changes. The drawbar, the Hydralic raise/lower linkage, and the regular rear wheel or the new caster rear wheel. You have to look close to tell a 4440 from a 4441.

The first pipe semi mounted plow was the 5540. It was introduced at the same time as the 1800 and 1900 tractors. This plow could also be adjusted to cut 14 or 16 inches. It came in 4-5 or 6 bottoms.

Oliver soon found out that they need a bigger plow for the 1900 so they came out with the 5760 plow. This plow only came with 16 inch bottoms and came in 6-7 or 8 bottom sizes.

Two side notes:
When White bought Cockshutt in 1962 they sent the 4441, 5540, 5760 plows to Canada and they were painted green with the Cockshutt decals. They started painting the plows (and disks) red with the later models.
Also M Moline built pipe plows, but they were of thir own design, with no connection to Oliver. In 1963 when White bought MM they started to paint the new model Oliver plows red and sell them as MM's, but MM never sold Oliver pipe plows.

I hope this answers some of your questions.

IF you ran 14's you might be able to get 5 frame loops between the wheels. 4x16=64" 5x14 = 70" 4x18=72" which would use less metal in frames, which is why the factory built them instead. So the way to build a 5-14 would be a bunch of 14's already available (like the 2 bottom and 3 bottom from a 70 and an 88). By time the power needed for that extra bottom became available the semi-mounts and pipe backbones were coming out.

In the late 50's and early 60's Oliver was still building the 4240 plow. This model was a 2 or 3 bottom with 12" 14" or 16' bottoms.

They were also building the 4340 and that plow was a 3 or 4 bottom with 12" 14" and 16" bottoms. They built this model well into the late 60's. This plow was not made to add a 5th bottom.

Both of the above plows were trailer plows.

I am not saying they did not build such a plow as you describ, but I certainly am not familiar with one.

Sorry I can't help.