. Electric railway journal . circuit controllerif additional protection afforded by a separate connectionto the switch point is desired. The switch and lock movement can be furnished foroperation on high or low voltage direct current, or foralternating current of any standard voltage and at 25or 60 cvcles. Spring-Operated Crossing Signalwith Winding Motor The track-winding type of crossing signal made bythe Hoeschen Manufacturing Company, Omaha, Neb.,has been supplemented by a similar signal arrangedfor motor winding. This was brought out to makepossible the installation of the device in locat
. Electric railway journal . circuit controllerif additional protection afforded by a separate connectionto the switch point is desired. The switch and lock movement can be furnished foroperation on high or low voltage direct current, or foralternating current of any standard voltage and at 25or 60 cvcles. Spring-Operated Crossing Signalwith Winding Motor The track-winding type of crossing signal made bythe Hoeschen Manufacturing Company, Omaha, Neb.,has been supplemented by a similar signal arrangedfor motor winding. This was brought out to makepossible the installation of the device in locations wherethe limitations of the track-winding type prohibitedits use. A track-winding signal can not be installedat a crossing near a carhouse or shop where the cars, incoming out of the shop and switching back in, wouldrun over the starting mechanism but would not con-tinue on over the winding mechanism. In this case thesignal would operate enough times without a windingimpulse to completely unwind the spring and leave the. MOTOR-WINDING SPRING-OPERATED CROSSING SIGNAL signal inoperative. The motor-winding type overcomesthese difficulties and has another advantage in that itcan be placed anywhere. It is arranged so that themotor winds the spring up faster than the spring un-winds when the wigwag is operating. When the springis completely wound a cam actuated by a spring oper-ates a switch mechanism which stops the motor. Thenwhen the spring is nearly unwound this same mechan-ism cuts the motor in and the rewinding is repeatedautomatically regardless of the train movement. Current for the winding motor can be supplied from abattery by using a low-voltage motor, or from thesignal line or trolley supply by using a resistance in-serted for a 110-volt or motor. A feature ofthe mechanism is an automatic time stop which may beadjusted so that the signal will operate for a period offrom thirty seconds to three minutes and then be auto-matically stopped. This takes care of i
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