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Scrub roller being used in South Australia, c.1922. The invention of the scrub roller, or mallee roller, was one solution.This was a heavy roller which was dragged over roughly cleared ground by horses or bullocks, crushing small trees, undergrowth and new shoots.
A bush hog or "brush hog" is a type of rotary mower. Typically these mowers are designed to be towed behind a farm tractor using the three-point hitch and are driven via the power take-off (PTO). It has blades that are not rigidly attached to the drive like a lawnmower blade, but are on hinges so if the blade hits a rock or stump , it bounces ...
Hog oiler patent image U.S. patent 1,241,023. A hog oiler was a mechanical device employed on farms to be used by hogs to provide relief from insects and offer skin protection. It consisted of a reservoir to hold oil, and a means to distribute the oil onto the hog, often via grooved wheels or cylinders.
US Army Air Forces B-26B bomber in flight The lone XB-26H "Middle River Stump Jumper", used for testing "bicycle" landing gear B-26G "Shootin' In" at Wright-Patterson National Air Force Museum. B-26 — The first 201 planes were ordered based upon design alone. Prototypes were not characterized with the usual "X" or "Y" designations.
Each set of tines is rotated on a vertical axis and tills the soil horizontally. The result is that, unlike a rotary tiller, soil layers are not turned over or inverted, which is useful in preventing dormant weed seeds from being brought to the surface, and there is no horizontal slicing of the subsurface soil that can lead to hardpan formation ...
The company was established in December 1908 [1] as Sharp-Hughes Tool Company when Howard R. Hughes Sr. patented a roller cutter bit that dramatically improved the rotary drilling process for oil drilling rigs. He partnered with longtime business associate Walter Benona Sharp to manufacture and market the bit.
Rotary airlock; The basic use of the rotary airlock feeder is as an airlock transition point, sealing pressurized systems against loss of air or gas while maintaining a flow of material between components with different pressure and suitable for air lock applications ranging from gravity discharge of filters, rotary valves, cyclone dust collectors, and rotary airlock storage devices to ...
The first eight were delivered to the Royal Australian Air Force, subsequently transferred to the Australian Army; the remainder were delivered straight to the Army after rotary-wing assets were divested by the Air Force in 1989. [197] S-70A-11 Black Hawk: Export version for the Royal Jordanian Air Force.