Did You Know...
...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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| Number | Title | Issue Date |
| 5355798 | Intermittent motion rotary printing press An intermittent motion rotary printing press in which the inking cylinder and pressure cylinder are mounted in spaced apart relation on a single common bracket assembly which pivots between an inking step position and a print step position. The range of b... | 10/18/1994 |
| 5123348 | Clutch and brake mechanism for franking machine employing electro-rheological fluid A clutch and brake mechanism for a mechanical drive of print drum in a franking machine is disclosed which utilizes a clutch and brake operated by means of electric potentials applied across an electro-rheological fluid. Elements of the clutch and brake a... | 06/23/1992 |
| 4926990 | Clutch for franking machine Non-slipping clutch disposed between the drive and transport mechanism and between the drive and control cylinder for triggering printing in franking machines, including a shaft, a locking wheel being mounted on the shaft and engaged by the drive, interna... | 05/22/1990 |
| 4729311 | Printing apparatus including a single revolution clutch A printing apparatus which includes a single revolution clutch. The clutch includes first and second cam sections which comprise the output member of the clutch. When the clutch is released, a spring accelerates the output member to bring a control surfac... | 03/08/1988 |
| 4596185 | Printing apparatus An endorsement printer for document processing systems is driven in a printing operation cycle by two separate motors. One motor, which may be of the stepping type, drives the endorsement printer in acceleration and deceleration modes before and after the... | 06/24/1986 |
| 4399750 | Camming platen endorser An endorser for document processing machines is provided with means for controlling the application of an endorsement in a manner which reduces the deleterious effects of impaction previously encountered when printing endorsements and at the same time aff... | 08/23/1983 |
| 4334471 | Reference printing on moving surface A printing system is disclosed which permits the printing of indicia on a continuously moving web at a fixed position offset from previously printed, evenly spaced web marks. The fixed position of the printed indicia relative to the web marks is independe... | 06/15/1982 |
| 4036127 | Plate marking apparatus A vertical cylindrical member is supported by a frame adjacent a plurality of rotatable horizontally mounted rollers that support a plate to be marked. A carriage is mounted for vertical reciprocal movement on the cylindrical member. A piston cylinder ass... | 07/19/1977 |
| 4023489 | Document endorsing control circuitry and method for minimizing power consumption requirements Electrical control circuitry for driving a rotational print head to initiate an endorsement on a single side of paper checks traveling past the print head at a relatively constant velocity, including a bistable device operatively connected to control a ra... | 05/17/1977 |
| 3973486 | Printer A printer comprising a supporting structure and a print disc having a curved peripheral surface with characters formed thereon. The print disc is mounted on the supporting structure for rotation about a rotational axis. Paper is moved over the peripheral ... | 08/10/1976 |
| 3946663 | Power embossing apparatus The embodiment of the invention disclosed herein is directed to power embossing apparatus which has support means for holding one die in a fixed position and a linearly movable ram for holding a second die to be moved toward and away from the first die. T... | 03/30/1976 |
