Lathes are machine tools which can take a piece of material and perform various functions on it including drilling and sanding. They can be used on wood, metal and glass. While they are generally relatively small, there are also large industrial machine lathes which can handle greater workloads. There also combination lathes which can perform a variety of additional functions. They are versatile pieces of kit, and thanks to Computer Numerical Controlled (CNC) technology they can now be operated from a computer rather than cumbersome, manual controls. This makes them much easier to schedule and operate, continually churning out parts with occasional supervision. Using a computer to control a lathe means that designs and specifications can be adjusted more accurately and systematically, and means that to use a lathe and operator doesn't necessarily have to be highly skilled or experienced with the manual controls. In the old days knowledge of individual machines was se...
classification of gates a)High head gates,which operates under high head of 30m and above b)Meadium head gates,which operates head of 15m ad above and below 30m
A differential gear is an arrangement of beveled gears in such a manner such that the input torsion is taken up by a ring gear and distributed equally through two planetary gears to the side gears which drive the shafts on either side. One of the common applications of differential gears is in automobiles. Consider a vehicle following a curved path. As one can easily imagine, the inner wheel covers a shorter distance than the outer wheel. In case the system consists of only a single shaft connecting the inner and outer wheel, both the wheels are forced to turn at the same angular momentum and hence makes turning difficult leading to slippage and binding of tires. In addition to this, the strain on the inner wheels is passed on to the outer wheels through the axle putting undue strain on it. This problem is solved by using the differential gear system. In this, the power of the engine is transferred through a drive shaft and pinion arrangement to the ring gear and the torque is furt...
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