Toner unit for photoelectrostatic reproduction equipment

Claim 1

A TONER UNIT ADAPTED FOR THE APPLICATION OF A POWDERED, SOLID RESINOUS TONER TO AN ELECTROSTATIC IMAGE CARRIED BY A PHOTOELECTROSTATIC COATING ON A COPY SHEET WHICH COMPRISES IN COMBINATION: A STATIONARY CYLINDRICAL CORE OF A NON-MAGNETIC MATERIAL HAVING ITS AXIS IN APPROXIMATELY A HORIZONTAL POSITION, AND A PLURALITY OF LONGITUDINAL GROOVES COUNTERSUNK IN ITS CYLINDRICAL SURFACE AT SPACED INTERVALS AROUND AT LEAST A SUBSTANTIAL PART OF ITS CIRCUMFERENCE; AN ELONGATED, CLOSELY FITTING STRIP OF A PERMANENTLY MAGNETIC MATERIAL POSITIONED WITHIN EACH OF THE SAID GROOVES IN THE SURFACE OF THE STATIONARY CORE; A MEANS FOR ADJUSTING THE CIRCUMFERENTIAL POSITION OF THE SAID CYLINDRICAL CORE AND FOR LOCKING IT IN ITS ADJUSTED POSITION, WHEREBY THE POSITIONS OF THE SAID MAGNETIC STRIPS WITH RESPECT TO THE UPPER HORIZONTAL TANGENT OF THE CIRCUMFERENCE OF THE SAID CORE CAN BE ACCURATELY ADJUSTED; A ROTATABLE, HOLLOW CYLINDRICAL CORE OF A NON-MAGNETIC MATERIAL POSITIONED AROUND THE STATIONARY CORE AND THE LONGITUDINAL MAGNETIC STRIPS CARRIED IN ITS CYLINDRICAL SURFACE; A TRAY FOR RETAINING A BODY OF A TONER MIX IN CONTACT WITH THE LOWER PART OF THE SAID ROTATABLE CYLINDER; A MEANS FOR ROTATING THE SAID HOLLOW CYLINDER AROUND THE SAID STATIONARY CORE; AND A DOCTOR BLADE ADJACENT THE SAID ROTATABLE, HOLLOW CYLINDER, PARALLELING THE LENGTH OF THE SAID CYLINDER, SPACED AWAY FROM ITS SURFACE BY A UNIFORM DISTANCE ALONG ITS LENGTH, AND ADJACENT A LOCATION AT WHICH THE SURFACE OF THE CYLINDER IS MOVED IN AN UPWARDLY DIRECTION BY THE SAID MEANS FOR ROTATING IT AROUND THE STATIONARY CORE.