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Self-leveling concrete was invented in 1952 by Axel Karlsson from Sweden. The first product was a combination of wood glue, fine sand and cement with additives. [1] It was called flytspackel, which directly translates to "floating putty". The term self-leveling can be traced back to a patent applied by the company Lafarge in 1997. [2]
A John Deere Gator converted into an ambulance: This vehicle is owned by Toronto District St. John Ambulance. The John Deere Gator is a family of small all-terrain utility vehicles produced by the John Deere Corporation. Gators typically feature a box bed, similar in function to a pickup truck. The bed can also be installed as an electric dump ...
Deere & Company, doing business as John Deere (/ ˈ dʒ ɒ n ˈ d ɪər /), is an American corporation that manufactures agricultural machinery, heavy equipment, forestry machinery, diesel engines, drivetrains (axles, transmissions, gearboxes) used in heavy equipment and lawn care equipment.
John Deere was born on February 7, 1804, in Rutland, Vermont, [4] the third son of William Rinold Deere, [5] a merchant tailor, and Sarah Yeats. [6] After a brief educational period at Middlebury College, at age 17 in 1821, he began an apprenticeship with Captain Benjamin Lawrence, a successful Middlebury blacksmith, and entered the trade for himself in 1826.
A grader, also commonly referred to as a road grader, motor grader, or simply blade, is a form of heavy equipment with a long blade used to create a flat surface during grading. Although the earliest models were towed behind horses, and later tractors , most modern graders are self-propelled and thus technically "motor graders".
A leveling system was also developed in Europe by the Italian combine manufacturer Laverda. Gleaner, IH/Case IH, John Deere, and others all have made combines with a hillside leveling system, and local machine shops have fabricated them as an aftermarket add-on. Newer leveling systems do not have as much tilt as the older ones, as modern ...
The irons (blades) on jack planes are often ground with a slight camber, allowing more material to be removed without marring the work. [9] For a finer finish, the irons can also be ground like a smoothing plane – with a straight edge and a very slight curve on the corners.
Detail: flails on the rotating drum Two mounted on a Unimog, one at the front, and one at the end of a hydraulic boom Used for ditch maintenance. A flail mower is a type of powered garden/agricultural equipment which is used to deal with heavier grass/scrub which a normal lawn mower could not cope with.