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A stone picker (or rock picker) is an implement to sieve through the top layer of soil to separate and collect rocks and soil debris from good topsoil. It is usually tractor-pulled. [1] A stone picker is similar in function to a rock windrower (rock rake); a stone picker generally digs to greater depths to remove stones and rocks.
In mechanized agriculture, fieldstone is usually removed by a tractor attachment called a rock picker. A chain-driven wheel rotates a graded scoop, picking surface rocks from the soil, and shakes off excess soil. A hydraulic lift then tilts and empties the rock bucket, usually along the perimeter of the farm.
In engineering terms, three-point attachment is the simplest and the only statically determinate way of rigidly joining two bodies. A three-point hitch attaches the implement to the tractor so that the orientation of the implement is fixed with respect to the tractor and the arm position of the hitch.
English: A John Deere 4455 tractor and a Summers rotary rock picker, Hurdsfield, Wells County, North Dakota, USA. – "Had Many hours on these, Zig Zagging all over the fields picking up rocks … one of my favorite jobs.
For 1955 in IH tractors, the numbered "hundred series" was offered. Although given slightly different styling and few new features, they were still updates to the models introduced in 1939. The only new tractor in the 1955 lineup was the 300 Utility. In 1957 power was increased in some models and the 230 Utility was introduced. [20]
John Deere Front end loaders CAD model tracing of a tractor mounted loader mechanism CAD model tracing of a skid loader mechanism. A loader is a heavy equipment machine used in construction to move or load materials such as soil, rock, sand, demolition debris, etc. into or onto another type of machinery (such as a dump truck, conveyor belt, feed-hopper, or railroad car).
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