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A point machine conversion system consists of a remotely controlled device attached to an existing manually operated point that allows the shunter/driver to remotely operate hand points with a radio handset. Each converter can be used as a stand-alone or multiple units can be installed operating
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Modern point machines have an electric motor and gears to convert the rotational motion of the motor into the linear motion required to switch the points. The gear assembly also provides the required transmission ratio so that it can generate necessary force to move switch blades. The machine
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on the one hand, and tended to require more signal boxes, even lightly used ones, on the other hand, there has always been a desire of railway administrations to increase the distance that remote turnouts can be operated. This requires some kind of power operation of points and signals. The
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More recently with the increase in weight of rail, and the introduction of high speed turnouts with finer angles requiring multiple drives, points have become stiffer and beyond the capability of mechanical drives, forcing the introduction of point machines if not already done so.
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129:) and associated mechanism used to operate this switch can be seen to the right in the picture
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principal means of power operation include hydraulic, pneumatic and electric.
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Since the limitation of mechanical operation restricted the design of
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The latest development is to mount the switch motor inside a faux
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In the earliest times, points were operated manually by
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205:Point machine conversion - manual to motorized
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16:Device for operating railway turnouts
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149:) is a device for operating railway
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