RAILWAY VEHICLE ROTARY POLYPROJECTOR DEVICE Russian patent published in 1999 - IPC

FIELD: railway transport. SUBSTANCE: rotary polyprojector device installed inside front head part of body in streamlined housing under roof behind front protective glass contains rotary light sources with reflectors (projectors) furnished with remote control automatic follow-up drive from inner end face of central pivot of front (head) bogie of vehicle. Central wide-angle light source with reflector forming central projector is arranged in vehicle on centerline B. Side narrow-directed light sources with reflectors forming side spotlights are installed in one plane with central projector symmetrically relative to the latter. All swivel (central and side) projectors are mechanically connected through gear rack to provide automatic synchronous turning in horizontal plane in either side. Each narrow directed spotlight with reflector (side projector) has installed optical axis A arranged at larger angle "ϕ" to vertical turning axis L than optical axis "Б" of central wide-angle light source with reflector (central projector) arranged at angle "ϕ" to its vertical axis L. With railway vehicle entering curvilinear section of track (at left or right turn), front (head) bogie, turns under action of track rail curvature and its central pivot turns driving sprocket by remote-controlled drive, shifts gear rack and turns side gears of side projectors through equal angle. EFFECT: provision of automatic follow-up of light beams of all projectors at turning. 4 dwg