Apparatus for surfacing glass

Claim 1

GLASS SURFACING APPARATUS FOR SIMULTANEOUSLY SURFACING BOTH SURFACES OF CONTINUOUS GLASS RIBBON INCLUDING MEANS FOR CONVEYING SAID RIBBON ALONG A DEFINITE PATH, A SURFACING UNIT COMPOSED OF AT LEAST A PAIR OF GENERALLY RECTANGULAR OPPOSED SURFACING MEMBEERS, UPPER MOUNTING MEANS TO MOUNT ONE SURFACING MEMBER IN ENGAGEMENT WITH THE TOP SURFACE OF THE RIBBON WITH THE LONGITUDINAL EDGES OF SAID ONE SURFACING MEMBER BEING DISPOSED SUBSTANTIALLY NORMAL TO THE DIRECTION OF CONVEYANCE OF SAID RIBBON, LOWER MOUNTING MEANS TO MOUNT THE OTHER SURFACING MEMBER IN ENGAGEMENT WITH THE BOTTOM SURFACE OF THE RIBBON WITH THE LONGITUDINAL EDGES OF SAID OTHER SURFACING MEMBER BEING DISPOSED SUBSTANTIALLY NORMAL TO THE DIRECTION OF CONVEYANCE OF SAID RIBBON, EACH OF SAID SURFACING MEMBER MOUNTING MEANS INCLUDING ECCENTRIC DRIVE MEANS TO IMPART TO SAID SURFACING MEMBERS A CURVILINEAR TRANSLATION MOTION SUCH THAT THE LONGITUDINAL EDGES OF THE SURFACING MEMBERS REMAIN SUBSTANTIALLY NORMAL TO THE DIRECTION OF CONVEYANCE OF THE GLASS RIBBON AT ALL TIMES, MOTION CONTROL MEANS TO MAINTAIN ONE SURFACING MEMBER 180* OUT OF PHASE WITH RESPECT TO THE OTHER SURFACING MEMBER MOTOR MEANS TO IMPART MOTION TO EACH OF SAID SURFACING MEMBERS THROUGH SAID ECCENTRIC DRIVE MEANS, AND SAFETY MEANS TO PREVENT AN UPPER SURFACING MEMBER FROM CONTACTING A LOWER SURFACING MEMBER SHOULD THE GLASS RIBBOM BREAK DURING THE SURFACING OPERATION.