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Purpose-manufactured burnishers are polished smooth, typically made from high speed steel (HSS) or cemented carbide, [4] and usually have wooden handles. The shaft profile is usually round, but other profiles include oval and triangular.
Floor burnisher is the term for a high speed floor buffer that rotates its pad at over 1000 RPM. Closely resembling a large upright, wide-based vacuum cleaner with handlebar controls and requiring two-handed steering by beginners, a floor buffer uses one or more variable-speed circular rotary brushes to dislodge dirt and dust from and apply a ...
A propane burnisher is a type of rotary floor burnisher, a floor buffing (polishing) device, that is powered by propane. It is designed to rotate in speeds in excess of 1200-1800 RPM . It typically has a series of interchangeable pads that promote the cleaning, along with different types of abrasives and solvents available to buff the floor to ...
The plastic deformation associated with burnishing creates greater heat and friction than from rubbing alone. This reduces the efficiency of the machine and limits its speed. Furthermore, plastic deformation alters the form and geometry of the part. This reduces the precision and accuracy of the machine.
It is essentially a .45 ACP case, necked down to .357, resulting in a cartridge similar in form to the earlier 7.65×21mm Parabellum and 7.63×25mm Mauser cartridges. It was created to be a low recoil target cartridge that would function reliably with multiple bullet types, FMJ to cast lead wadcutters without the feeding problems that straight walled pistol rounds sometimes exhibit. [2]
The mechanical transmission, using a scoop control fluid coupling and four-speed Power-flow SSS (synchro-self-shifting) gearbox, [1] was a Hudswell Clarke speciality. The D2/12 was mechanically similar to the earlier British Rail Class D2/7 but was of more modern appearance.