Posted by WIZZO on November 07, 2014 at 14:36:57 from (31.50.135.247):
In Reply to: Push-Pull plowing posted by WIZZO on November 07, 2014 at 06:24:51:
The concept was invented by Ransomes in Britain and was copied by several other European plow manufacturers.
The principal was to utilize the increasing tractor HP because the rear point lifting capacity was on its limited with 5 mounted furrows. The weight of the front plow added to the traction of the front driving axle aiming at 50:50 weight distribution on front & rear wheels.
In practice it was difficult to steer straight line and balance up front & rear plows furrows. A nightmare to drive through gateways onto roads and along narrow roads with car traffic. They need large flat fields, preferably in one block with no public roads to travel on.
Most plows are now vari-width with furrows adjustable hydraulicly from 12 to 20 inches wide so the load can be reduced to suit the soil type; and with deep digger bodies surface trash can be buried.
The idea never took off in vast numbers of sales, and only Overum in Sweden who purchased Ransomes sell them to-day.
The ever increasing HP & tractor sizes now use semi-mounted plows and even ones with articulated frames.
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Today's Featured Article - The Nuts and Bolts of Fasteners - Part 2 - by Curtis Von Fange. In our previous article we discussed capscrews, bolts, and nuts along with their relative hardness and thread sizes. In this segment we will finish up on our fasteners and then work with ways to keep them from loosening up in the field. Capscrews, bolts and nuts are not the only means of holding two parts together. When dealing with thinner metals like sheet tin, a long bolt and
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