Infinitely variable speed change gear

Claim 1

AN INFINITELY VARIABLE SPEED CHANGE GEAR COMPRISING A DRIVING SHAFT AND A DRIVEN SHAFT ARRANGED COAXIALLY, TWO GROUPS OF DOUBLE CONE WHEELS PROVIDED WITH SHAFTS, EACH GROUP CONTAINING A PLURALITY OF DOUBLE CONE WHEELS AND EACH DOUBLE CONE WHEEL OF EACH GROUP HAVING A TOP CONE SURFACE ARRANGED TO TOUCH INTERNALLY AT ONE GENERATING LINE TO AN IMAGINARY COMMON CYLINDRICAL SURFACE WHICH HAS THE SAME AXIS WITH THE AXIS OF THE DRIVING SHAFT AND A BOTTOM CONE SURFACE, A MEMBER ARRANGED TO ROTATE WITH THE DRIVING SHAFT, THE SHAFTS OF THE DOUBLE CONE WHEELS OF THE ONE GROUP BEING SUPPORTED BY THE ABOVE SAID MEMBER, A MEMBER ARRANGED TO ROTATE WITH THE DRIVEN SHAFT, THE SHAFTS OF THE DOUBLE CONE WHEELS OF THE OTHER GROUP BEING SUPPORTED BY THE LAST MENTIONED MEMBER, A WHEEL WITH TWO CONE SURFACES, AND HAVING AN INTERNAL DIAMETER GREATER THAN THE DIAMETER OF THE DRIVEN SHAFT, ARRANGED NORMALLY COAXIALLY WITH THE DRIVEN SHAFT, THE ONE CONE SURFACE OF THE WHEEL BEING ENGAGED TO THE BOTTOM CONE SURFACE OF THE DOUBLE CONE WHEEL OF THE ONE GROUP, AND THE OTHER CONE SURFACE OF THE DOUBLE CONE WHEEL OF THE THE BOTTOM CONE SURFACE OF THE DOUBLE CONE WHEEL OF THE OTHER GROUP, A NON-ROTATABLE BRIDGING MEMBER WITH TWO RING-SHAPE PARTS, OF WHICH THE ONE RING-SHAPED PART ENGAGING AT ONE POINT TO THE TOP CONE SURFACE OF EACH DOUBLE CONE WHEEL OF THE ONE GROUP AND THE OTHER RING-SHAPED PART ENGAGING AT ONE POINT TO THE TOP CONE SURFACE OF EACH DOUBLE CONE WHEEL OF THE OTHER GROUP AND OPERATING MEANS TO SHIFT THE BRIDGING MEMBER ALONG THE TO CONE SURFACES OF THE DOUBLE CONE WHEELS.