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...that after Walter Hunt patented the safety pin in 1849, he sold the rights to it for $400?
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| Number | Title | Issue Date |
| 4200211 | Web guide device A control roller for controlling the lateral position of a moving web is pivotable about an axis perpendicular to the web surface immediately upstream of the control roller. In the preferred embodiment, the two ends of a plate on which the roller is mount... | 04/29/1980 |
| 4200246 | Conveyor device for a thin web and a method of conveying An improved conveying device for conveying a thin web through a station in both directions with the desired registry characterized by a supply device for storing a reel of the thin web, a guiding device for guiding the thin web through the station and a t... | 04/29/1980 |
| 4199117 | Winding device for metal strips Winding device for metal strips, in which the metal strip is braked between two rollers which are pressed against one another. One of the rollers has a larger angle of wrap for the metal strip of at least 75° and the other roller has a smaller angle of w... | 04/22/1980 |
| 4196863 | Tape winding apparatus A tape winding apparatus including a base member which revolves around a body around which a tape is wound such as a coil conductor used in a large-size rotary machine and advances or retreats in the axial direction of the revolution; first supporting mea... | 04/08/1980 |
| 4186894 | Vehicle and process for retrieving flexible pipe A vehicle and process for retrieving flexible plastic pipe from on-the-ground field positions is disclosed. Flexible plastic pipe is finding increasing use in oil field installations for carrying fuel and water to field rigs. Flexible plastic pipe is laid... | 02/05/1980 |
| 4170175 | Belt tracking system A system for tracking an endless image copying or recording belt and maintaining it in alignment within a confined area includes at least three rollers with four rollers being preferred. The first roller is a cylindrical drive roller and the second and th... | 10/09/1979 |
| 4162786 | Job separation by a skewed trough in the paper path The method and apparatus for offsetting sheets laterally with respect to their travel in a predetermined direction along a path. The method includes directing the sheets away from the path and through a second curved path aligned in skewed relation to the... | 07/31/1979 |
| 4155497 | Tape transport mechanism for recording/reproducing apparatus, particularly for video tape recording use To improve smoothness of tape transport in a spiral path over a guide cylinder, the guide rollers located immediately adjacent the guide cylinder, and journalled to rotate about an axis inclined with respect to the axis of the guide cylinder, can rotate a... | 05/22/1979 |
| 4136808 | Web threading system A system for directing the tail of a web of flexible material to a predetermined location laterally offset from the normal path of movement of said web. The system includes a first Coanda nozzle directing a gaseous flow along a chute associated therewith ... | 01/30/1979 |
| 4131358 | Device for moving a path of a moving data carrier toward and away from a surface area of a sub-carrier A device for moving a path of a moving data carrier toward and away from a surface area of a sub-carrier characterized by two pivotal support members which are mounted to pivot about respective pivot points and are pivotable between a first or forward pos... | 12/26/1978 |
| 4091979 | Methods and apparatus for precision guiding a web A moving web is precision guided by twisting the moving web about an axis extending in a direction of movement of the web to provide a yaw force acting continuously in a predetermined direction transversely of the web, and resisting that yaw force at a pr... | 05/30/1978 |
| 4083510 | Self-adjusting fairlead for spring rewound tagline device A spring rewound tagline device in which a cable reel has a fairlead with a cable guide means for guiding a cable to and from the cable reel as the cable is payed out and retrieved. The fairlead according to the present invention is self-adjusting and inc... | 04/11/1978 |
| 4059211 | Web material storage device A continuous web handling device includes two web storage structures, both of which can receive and discharge web material. A selector mechanism including a rotatable web guide turret directs the web material into a selected one of said structures and sim... | 11/22/1977 |
| 4054235 | Continuous forms sheet separator Apparatus to separate multiple sheet feeds from fan-fold paper being moved from an input paper stack upwardly to a print station. The separator apparatus includes a separator member, and flexible members support the separator member for swinging movement ... | 10/18/1977 |
| 4022366 | Sheet handling apparatus An apparatus for transporting a sheet of a flexible material between a first and a second position. The apparatus includes an elongated frame and an air-pervious endless belt movably mounted on first and second pulleys positioned at each end of the frame.... | 05/10/1977 |
| 4014487 | Web threading system An improved system for directing a web of flexible material to a predetermined location, and more particularly, a system for directing the end or tail of a moving web into threading engagement with rolls forming a nip or the like. In this system a gas suc... | 03/29/1977 |
| 3999696 | Web threading system A system for directing a web of flexible material to a predetermined location and more particularly to a system for directing the free end or tail of the web into threading engagement with rolls forming a hip or the like. In the system a gas such as air i... | 12/28/1976 |
| 3986650 | Positionally constraining web support Web support for constraining the entering portion of a moving web against change in its spatial lateral position while remaining free to change its angular lateral position. The web support includes a web engaging surface which presents substantially no l... | 10/19/1976 |
| 3982402 | Submarine pipeline laying vessel This invention relates to a method and to an apparatus for use in laying a submarine pipeline from a pipe-laying vessel. According to one aspect of the present invention, there is provided a reel pipe-laying method for continuously laying a pipeline of up... | 09/28/1976 |
| 3979079 | Roll film winding mechanism A roll film winding mechanism is provided for film of the type which is wound on a flanged winding spool with superposed liner paper for protection against light intrusion and accidental exposure. The winding mechanism includes a tension roller disposed b... | 09/07/1976 |
| 3963187 | Wrinkle-proof mechanism for paper roll supply This invention provides a wrinkle-proof mechanism for a paper roll supply to a cutter in which a plurality of paper rolls are arranged linearly in two vertical stages and whereby the paper strip unwound from any one of said paper rolls excluding the forem... | 06/15/1976 |
| 3958736 | Web tensioning and steering Simultaneously tensioning one side of a web and correcting steering error introduced by said tensioning comprising passing the web partially around a tensioning member, e.g. a roll, and skewing the roll axis relative to a neutral axis, with the end of the... | 05/25/1976 |
| 3949920 | Fabric alignment apparatus Apparatus for transversely adjusting a longitudinally moving strip of tire breaker building fabric is disclosed. In one embodiment, for adjusting vertically moving fabric, the apparatus comprises a frame including first and second pluralities of cylindric... | 04/13/1976 |
| 3944161 | Tape laying device and method A portable, hand manipulated device for laying flexible, stretchable and tearable plastic films and metal foil warning tapes, for example, in a trench in which an element of construction such as a telephone cable, a gas main, a water main, or the like, ha... | 03/16/1976 |
| 3941329 | Winding apparatus This invention relates to an apparatus for winding a cable or a flexible tube on winding supports mounted on winding-machines, the apparatus comprising at least two winding supports, a guiding and shearing mechanism having at least one exit opening, and d... | 03/02/1976 |
| 3939494 | Resilient tape guide assembly for tape recording and/or reproducing apparatus A tape recording and/or reproducing apparatus of the type having a tape guide drum with a circumferential slot through which at least one rotary transducer projects for recording and/or reproducing signals on a tape running against the periphery of the dr... | 02/17/1976 |
| 3936657 | Universal positioning welding torch An adapter is affixed to a conventional weld wire feed roll assembly said adapter having a first opening through which the weld wire passes generally toward the target area. The adapter comprises a second opening which is at a skew angle to said first ope... | 02/03/1976 |
| 3934775 | Web centering device Mechanical self-centering device to center a moving web of thin sheetlike material such as paper, plastic, metal or the like to prevent the web from drifting from side to side as it moves from one mechanical device, such as an unwind stand, to another mec... | 01/27/1976 |
| 3930487 | Heat exchanger tube tool Certain types of heat-exchangers have tubes opening through a tube sheet to a manifold having an access opening offset from alignment with the tube ends. A tool for inserting a device, such as for inspection or repair, is provided for use in such instance... | 01/06/1976 |
