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| Number | Title | Issue Date |
| 4286908 | Device for facilitating separation of sheet groups A device for use in conjunction with a sheet group separator of the type having a rotating slotted disk supporting a stack, together with a depressor for the lowermost group, and a finger for separating a corner of said group from the stack. The device co... | 09/01/1981 |
| 4252483 | Automatic book strip feeder A high speed machine which successively removes unbound book pad strips from the bottom of a stack and feeds them toward a glueing machine. The feeder is adapted for different strip sizes including larger sizes and comprises stack guide device disposed ab... | 02/24/1981 |
| 4249278 | Machine and method for spiral binding of sheet groups with plastic thread A method and machine for feeding plastic thread from a bulk spool, forming the thread into a spiral configuration, and inserting the spiral into a perforated sheet group so that it may be cut and bent to form a spiral binder. The machine and process is co... | 02/10/1981 |
| 4208750 | Method and construction for binding calendars and the like A method and construction for binding wide groups of sheets such as calendars so that they may be opened without sheet offset and completely folded back. The method comprises the steps of forming a series of elongated openings along one edge of the sheet ... | 06/24/1980 |
| 4185668 | Method and means for inserting, cutting and binding spiral wire binders A method and apparatus for inserting and forming spiral wire binders in a manner which insures uniform cutting and crimping of the coil ends and alignment of the inbent crimps. The method comprises the steps of feeding the spiral wire into the book its fu... | 01/29/1980 |
| 4178972 | Machine for manufacturing zig zag wire binders A pair of die rolls of novel construction are disclosed which act upon a continuous wire having a preliminary zig zag formation in order to impact the bends in the wire and thus narrow the formation, preparatory to use of the wire as a ring binder. Each r... | 12/18/1979 |
| 4155134 | Method and means for forming, inserting and closing zigzag wire binders A system for forming zigzag wire binder material in a continuous strip, storing the strip as it leaves the forming station, and severing lengths as needed at an adjacent station at which the binder lengths are inserted in books. The invention permits the ... | 05/22/1979 |
| 4143686 | Coil binding machine An improvement in coil binding machines of the type having front and rear clamps for the book spine during insertion of the spiral wire. The improved machine permits the book to be placed in position for clamping with the operator either sitting or standi... | 03/13/1979 |
| 4129913 | Arrangement for perforating and spiral binding of relatively thick groups of sheets A system for perforating the edges and then spiral binding relatively thick books at a rapid rate. The system overcomes the relative difficulty of perforating, as compared with spiral binding, thick books by splitting the path for the perforating step int... | 12/19/1978 |
| 4020617 | Heat shrink packaging machine Groups of spaced, aligned articles such as tape rolls are fed in succession to a station at which a heat-shrinkable film wrap is placed around the group of articles and sealed in a manner permitting looseness in the wrap. The group is then fed to a table ... | 05/03/1977 |
| 3972109 | Cutting fixture for spiral binders and method of manufacture A fixture for cutting and inwardly bending the ends of spiral binders. The fixture comprises a body having parallel sides formed by a milled slot, the lower end of one side having an arcuate inward extension. A cutter pivotally mounted between the body si... | 08/03/1976 |
