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Harrows were originally drawn by draft animals, such as horses, mules, or oxen, or in some times and places by manual labourers. In modern practice they are almost always tractor -mounted implements, either trailed after the tractor by a drawbar or mounted on the three-point hitch .
A major advance for this type of farming was the turn plough, also known as the mould-board plough (UK), moldboard plow (U.S.), or frame-plough. [21] A coulter (or skeith) could be added to cut vertically into the ground just ahead of the share (in front of the frog), a wedge-shaped cutting edge at the bottom front of the mould board with the ...
Inside of the tailcone of a Murphy Moose under construction, showing the semi-monocoque design. The Murphy Moose is a Canadian high-wing utility light aircraft produced in kit form by Murphy Aircraft of Chilliwack, British Columbia for amateur construction. The Moose can be purchased as a "quick-build" kit which comes partly pre-assembled. [1 ...
In most cases, the plows are mounted on hydraulically actuated arms, allowing them to be raised, lowered, and angled to better move snow. Most winter service vehicles include either permanently fixed plows or plow frames: 75% of the UK's Highways Agency vehicles include a plow frame to which a blade can be attached. [1]
Moline Plow considered the Allis-Chalmers Model 6-12, a very similar tractor, to be a patent-infringing copy. [4] Also around 1916, Moline Plow entered the automobile business with the Stephens brand, named after one of the founders of Moline Plow. Around 1918 or 1919, the Willys-Overland Company purchased a majority interest in the Moline Plow ...
Jethro Wood's plow design was later supplanted by the further improvements of John Deere, who furnished the plow with polished plowshares that enabled it to break up prairie sod. [ 25 ] After his death, Wood’s son, Benjamin Wood continued his battles against copy patents, working with Clay, Webster, and John Adams and securing a reform to the ...
MOOSE makes use of the PETSc non-linear solver package and libmesh to provide the finite element discretization. A key design aspect of MOOSE is the decomposition of weak form residual equations into separate terms that are each represented by compute kernels. The combination of these kernels into complete residuals describing the problem to be ...
Both Volvo and Saab have a tradition of taking moose crashes into account when building cars. [15] The Swedish National Road and Transport Research Institute has developed a moose crash test dummy called "Mooses". The dummy (which is made with similar weight, centre of gravity and dimensions to a live moose) is used to simulate realistic moose ...