Railway switches and signals – Train dispatching – Spacing
Patent
1975-05-27
1976-06-22
Blix, Trygve M.
Railway switches and signals
Train dispatching
Spacing
46257, 46262, 104147A, 104152, 246187B, 340171A, B61L 324
Patent
active
039647013
ABSTRACT:
A system is provided to permit the independent, simultaneous operation of several model railroad train sets along a single track at variable speeds and in the forward and reverse direction, as desired. The system employs apparatus for generating a repetitive ultimate duty cycle and for dividing the duty cycle into spaced apart timewise time slots. During each time slot a train driving voltage of preselected polarity and amplitude is applied to the track. Time gaps are provided between the time slots and during each such gap a control signal of predetermined frequency is applied to the track. The system further includes a sensor mounted in each train and connected to the dc motor of the train. Each sensor is tuned to one of the predetermined frequencies and includes a latching circuit responsive to its frequency which latches the dc motor to the track during the immediately following time slot. The duty cycle and time slots are chosen to permit the trains to operate smoothly and without interruption.
REFERENCES:
patent: 3211111 (1965-10-01), Morley
patent: 3686447 (1972-08-01), Takalo
patent: 3705387 (1972-12-01), Stern et al.
Blix Trygve M.
Kunin Stephen G.
LandOfFree
Model railroad train control system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Model railroad train control system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Model railroad train control system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2284570