Bed device for moving patients

Claim 1

A PATIENT MOVING AND LIFTING ATTACHMENT FOR A BED, COMPRISING SEPARATE BRACKET MEANS FOR ATTACHMENT TO EACH OF THE CORNER SUPPORTS OF THE BED, MEANS SECURING EACH BRACKET MEANS TO ITS CORRESPONDING CORNER SUPPORT, A PAIR OF PARALLEL LONGITUDINAL SHAFTS RESPECTIVELY EXTENDING LENGTHWISE ON EACH SIDE OF THE BED, EACH OF SAID BRACKET MEANS INCLUDING OPEN BEARING MEANS ABOVE THE MATTRESS LEVEL OF THE BED DETACHABLY SUPPORTING FOR ROTATION AN END OF THE LONGITUDINAL SHAFT ON THE SAME SIDE OF THE BED AS THE RESPECTIVE BRACKET MEANS, A FLEXIBLE SHEET-LIKE MEMBER DETACHABLY CONNECTED ALONG ITS OPPOSITE LONGITUDINAL EDGES OF THE TWO LONGITUDINAL SHAFTS ON OPPOSITE SIDES OF THE BED, EACH OF SAID SHAFTS INCLUDING MEANS FOR DETACHABLY RECEIVING A ROTATING MEANS IN DRIVING RELATION THERETO, ADDITIONAL BEARING MEANS CARRIED BY A PAIR OF SAID BRACKET MEANS AT OPPOSITE SIDES OF A GIVEN END OF THE BED, A LATERAL SHAFT SUPPORTED FOR ROTATION IN SAID ADDITIONAL BEARING MEANS, SAID LATERAL SHAFT INCLUDING MEANS FOR DETACHABLY RECEIVING A ROTATION MEANS IN DRIVING RELATION TO SAID LATERAL SHAFT, AND MEANS FOR ATTACHING AN AUXILIARY SHEET-LIKE MEMBER TO SAID SHAFT FOR IMPARTING LONGITUDINAL MOVEMENT TO A PATIENT IN THE BED UPON ROTATION OF SAID LATERAL SHAFT.