...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 |
| 7243404 | Web-spreading process and web-spreading device A web-spreading device and a web-spreading process are provided. The web-spreading device, is provided whereby a first web strand being conveyed and a second web strand being conveyed next to the first web strand in a web-processing machine can be offset in parallel... | 07/17/2007 |
| 6973702 | Web expander This invention provides a web expander comprising means for carrying a web 2 having longitudinal slits, means 5 for expanding the width of the web, and opening control means 6 for uniformly forming size and form of openings of the web expanded b... | 12/13/2005 |
| 5867878 | Fabric width control system A fabric width control system for a fabric compactor for compacting a moving fabric web. The system includes a vision assembly for measuring the width of the moving fabric web downstream of the fabric compactor. A mechanical spreader is located upstream o... | 02/09/1999 |
| 5794829 | Device for lateral register adjustment of a web of material A device for width of print adjustment of a web of material, particularly a printed web of material, including at least one register correction wheel for deflecting a web of material, the register correction wheel being assigned to the path of the web of ... | 08/18/1998 |
| 5791030 | Web widening apparatus A relatively inexpensive web widening apparatus which is suitable for the manufacture of a widened web having a large width and a lightweight web while maintaining a high widening ratio and the uniformity of the web and can be operated with ease at a high... | 08/11/1998 |
| 5781973 | Spreader for calendar line A spreader for spreading a fabric having upper and lower sides, transversely spaced edges and longitudinally extending tire reenforcing cords spaced laterally across the fabric between the edges preparatory to rubberizing the fabric in a calender, where t... | 07/21/1998 |
| 5619779 | Device for smoothing down a running material web A device for smoothing out a running material web having a marginal edge and a downstream direction of travel. At least two driven, threaded spindles engage the marginal edge of the material web. A web-guiding body is located upstream of the first spindle... | 04/15/1997 |
| 4920622 | Apparatus for the spreading the guiding of a web of flexible material An apparatus for guiding and spreading a textile web comprising spreading rollers extending across the full width of the web and mounted on a unit in the support for the spreading rollers, pairs of fingerlike guide rollers which can be inclined toward one... | 05/01/1990 |
| 4835992 | Method and apparatus for the treatment of continuously moving tubular fabric in the wet state The invention relates to a method and apparatus for the treatment of continuously moving tubular fabric (1) in the wet state, in which this tubular fabric is deliberately expanded in an expansion zone (3) by blowing air in and the fabric width (WB) effect... | 06/06/1989 |
| 4760626 | Guiding and spreading device There is disclosed a device for guiding and spreading out a moving material web, which includes a spreading station, a guide station and at least one edge-sensing system downstream from the guide station. The spreading station is arranged downstream from ... | 08/02/1988 |
| 4656702 | Expander and guider roller An expander roller comprises a straight shaft, rotary disk groups having a plurality of rotary disks rotatably put on said shaft, and a stretchable and resilient cylindrical member closely fitted on said rotary disk groups. The rotary disk groups are form... | 04/14/1987 |
| 4554714 | Moving web expanding and guiding apparatus A moving web expanding and guiding apparatus comprises, in combination, an expander device having three screw rolls arranged side by side, and a guide device having a required number of centering rolls, wherein the intermediate screw roll is movable in a ... | 11/26/1985 |
| 4433460 | Apparatus for spreading and guiding a web of textile fabric Apparatus for spreading and guiding a web of textile fabric or the like being longitudinally fed, comprising a pair of web spreading and guiding devices disposed at opposite sides of the web, each device comprising a pair of rotary members rotatably suppo... | 02/28/1984 |
| 4422308 | Apparatus for spreading a moving web of textile material The invention relates to a process and an apparatus for spreading a moving web of textile material during a treatment by means of fluid streams directed from the middle to the edges of the web. The side edges of the web are probed by sensors which control... | 12/27/1983 |
| 4388750 | Wrinkle remover for a web of running material Method and apparatus to remove wrinkles in a running web of material by the use of rotating members on the selvedges of the fabric in conjunction with vacuum pressure to urge the selvedges outward and to slightly overfeed the fabric.... | 06/21/1983 |
| 4330909 | Apparatus for flattening and guiding an elongated web An elongated knit web is flattened and guided by an apparatus having a support frame which extends longitudinally in a plane and which has an upstream and a downstream end. A pivot supports this frame for pivoting about a pivot axis transverse to the plan... | 05/25/1982 |
| 4322026 | Method and apparatus for controlling a moving web Method and apparatus for smoothing and laterally guiding a longitudinally moving web of material wherein the web is longitudinally moved in a generally upward vertical direction past first pressurized fluid discharge manifolds disposed adjacent the web pa... | 03/30/1982 |
| 4305185 | Adjustable spreader for tubular knitted fabric The disclosure is directed to apparatus for processing of tubular knitted fabric, including an internal flat spreader and width-adjustable edge drives, typically used in connection with other processing apparatus, such as calendars, padding equipment, com... | 12/15/1981 |
| 4291441 | Apparatus for opening textile fabrics in rope form Apparatus for opening a textile gathered in rope form includes a spreading device and a centering device, downstream of the spreading device, including two cylinders, maintained with their axes parallel but pivotable in a common plane parallel to the gene... | 09/29/1981 |
| 4224724 | System for opening fabrics in rope-form A system for opening fabrics in rope-form comprises a combination of a spreader device, and a centering device downstream of the spreader device a distance of 250 to 750 mm. The spreader device comprises two double spirally scored spreader rolls rotatably... | 09/30/1980 |
| 4192045 | Adjustable spreader for tubular knitted fabric The disclosure is directed to apparatus for processing of tubular knitted fabric, including an internal flat spreader and width-adjustable edge drives, typically used in connection with other processing apparatus, such as calenders, padding equipment, com... | 03/11/1980 |
| 4173929 | Printer ribbon anti-fold mechanism An anti-fold apparatus for high speed printers to prevent the folding or creasing of a printer ribbon riding over rollers. The rollers each have spiral angular serrations thereon, and are mounted in two pairs with each roller in a pair having one end abut... | 11/13/1979 |
| 4132184 | Sheet material guidance system The guidance system pulls sheet material along its length from a supply and moves the sheet material across a work table through a sewing machine and the like. The sheet material extends through a loop and is moved from a level displaced from the level of... | 01/02/1979 |
| 4069561 | Selvedge protection apparatus for loop pile fabric cutting machine Apparatus to prevent the accidental cutting of the selvedge backing material of a loop pile fabric being cut by a rotating cutting apparatus. The apparatus includes a plurality of fingers which engage the selvedge to maintain it in a tensioned condition i... | 01/24/1978 |
| 4062094 | Apparatus for laterally stretching textile fabric and the like Apparatus for laterally stretching a web of textile fabric comprising a pair of web-stretching devices disposed at opposite sides of the web, each web-stretching device comprising at least a pair of parallel uncurling fingers and a control roller disposed... | 12/13/1977 |
| 4054974 | Apparatus to manufacture a cut loop pile fabric having an improved selvedge detector and guide A pile fabric manufacturing apparatus having a mechanism to sense and guide the edge of the cut loop pile fabric. A double sensor is provided to either sense the edge of the pile or the edge of the backing material or selvedge to correctly maintain the pr... | 10/25/1977 |
| 4055697 | Woven material with filling threads at angles other than right angles A woven material wherein the woof or cross filling threads are disposed at a predetermined angle other than a right angle to the warp or lengthwise threads.... | 10/25/1977 |
| 3978556 | Processing system for woven, knit or similar shaped materials A textile processing system in which a textile material to be treated is led and conveyed through a predetermined path for processing by the provision of a material guidance device on both side-walls of the processing system. The system provides open-widt... | 09/07/1976 |
| 3962760 | Laminating interlayer expanding apparatus An apparatus for expanding a laminating interlayer is disclosed. The apparatus includes structure for feeding a heated web of laminating interlayer material to a conical member. A stretching of the web occurs between the feeding structure and the conical ... | 06/15/1976 |