Moving screen arrangement

Details Moving screen arrangement Moving screen arrangement

1975-07-07

1977-07-05

Dobeck, B.

Electricity: motive power systems

With particular motor-driven load device

Tension-maintaining type of motor-control system

318 63, 318 86, B65H 7700

Patent

active

040342727

ABSTRACT:
A moving screen display device includes a display web supported on a pair of reels, and a reversible motor to drive each reel. The motors are selectively driven so that if one motor is driving one reel in a take-up direction, the other motor is driven in the same direction at a reduced voltage to relieve stress on its drive train. To stop the web at a desired display position, the driving motor is deenergized, and the other motor is simultaneously driven for a few seconds in a reverse direction at a reduced voltage to counteract the momentum of the system.

REFERENCES:
patent: 3498570 (1970-03-01), Scholfield
patent: 3501682 (1970-03-01), Jacoby
patent: 3704401 (1972-11-01), Miller
patent: 3715641 (1973-02-01), Mattes
patent: 3863117 (1975-01-01), Paschetto

Affiliated with

Also associated with

Rating

Moving screen arrangement does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Moving screen arrangement, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Moving screen arrangement will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-579863