Stump Puller


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Stump Puller

 

a machine for uprooting stumps, extracting large stones from the soil, and removing trees and brush when bringing new land under cultivation, and during the preparation of routes and drainage canals.

Stump pullers are made with cable traction (winches; cable devices that operate on direct tractor traction) and with working elements in the form of teeth (hooks) that uproot by tractive or pushing force, lifting force, or a combination of forces. Stump pullers mounted on the front or rear of tractors, as well as trailer and self-propelled stump pullers, are manufactured. The most commonly used stump pullers in the USSR remove stumps by the pushing force of a tractor. They have a frame, a working element with hooks, and a lifting mechanism. During operation, the hooks dig under the stump and move it through the pushing force of the tractor; at the same time, the stump is raised by the uprooting device, or the hooks dig under the stump, and the stump is removed by the pushing force of the tractor.

References in periodicals archive ?
Crews of men and oxen used cables to snap the trees, and massive "stump pullers" with wheels 16-feet in diameter removed the stumps and roots of up to 40 trees a day.
Four months later, they unloaded on the malarial shore of the Tapajos River, leaving motorboats, a steam shovel, a pile driver, tractors, stump pullers, a locomotive, ice-making machines and crates of food, along with prefabricated buildings and a disassembled sawmill.
In fact, the portable plants were too expensive, new species of pine trees provided rapid reforestation, and development of large mechanical stump pullers provided a cheaper solution than blasting.