Infinitely adjustable gearbox with two circumferential gearings - has gear ratios allowing one wheel to trail driven wheel at same speed

摘要

The central wheels of the gearbox and the web of the worm gear are connected together with drive and driven shafts. When driving the outer central wheel (3 or 4), one circumferential gearbox (1) can be supported by the worm wheel (5) through the self-locking worms (6) and when driving the inner central wheel (7 or 8) the second gearbox (2) can bridge the support by the meshing of the wheel (10) fixed on the worm shaft. One or both gearboxes can be driven through a slight turn of the wheels on the drive shaft (15). ADVANTAGE - Two identical revolving gearboxes can be used having a common centre.