Did You Know...
...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 7258224 | Arrangement for conveying a plate-like product from one position to another An arrangement for conveying an anode plate from one location to another, whereby said arrangement comprises gripping elements attached to a conveyor for gripping a plate-like piece. Elements are attached to the gripping element connection for the correction, at lea... | 08/21/2007 |
| 6948530 | Weaving machine A weaving machine is constructed to use a magnetic traction device to reciprocate the shuttle in moving weft threads over warp threads at a high speed without producing noise and preventing direct contact between parts. ... | 09/27/2005 |
| 6845792 | Thread clamp for a carrier thread gripper in a rapier loom Thread clamping arrangement for a carrier gripper of a rapier loom wherein the arrangement includes a rigid support coupled to a lateral wall of a body of the carrier gripper. Each of an elongated first clamping element and an elongated second clamping element are p... | 01/25/2005 |
| 5423355 | Method and apparatus for limiting stresses in weft yarn advancing towards a weft insertion mechanism A weft yarn (1) leaving a stationary stock bobbin (2) is led through a compressed-air nozzle (6) and a deflector element (16) movable transversely to the direction of weft insertion (arrow 9), to the weft insertion mechanism (11) of a projectile loom. Aft... | 06/13/1995 |
| 5251677 | Picking device in projectile looms The picking device in projectile looms has guide teeth (1) having narrowing zones (20, 20') adapted to receive lubricant transferred from the projectiles (100) to the guide teeth. Because of these narrowing zones and given appropriate shaping no lubricant... | 10/12/1993 |
| 5199468 | Weft yarn clearing device The weft yarn clearing device is of use for an automatic method of clearing weft breakages in projectile looms. In the event of the yarn breakage in the shed, the weft yarn is engaged in the shed by at least one gripper element, then supplied to the inlet... | 04/06/1993 |
| 4936355 | Weft mixer for a loom The weft change motion employs a connecting link between a reciprocating mixer lever and a pivotally mounted mixer segment. During normal alternating weft changing, the link moves from one end position through a neutral position and, under the inertia for... | 06/26/1990 |
| 4895188 | Air regulator control for air jet loom An air supply system which insures that maximum air is supplied to the auxiliary jets of an air jet weaving machine upon start-up and automatically reduces the air supply when the weaving machine has reached equilibrium.... | 01/23/1990 |
| 4883097 | Papermakers wet felts Papermaker's felt employing compressible knit yarn in a woven base to provide a durable resiliency so as to provide vibration dampening and delay the occurrence of crushing during papermaking.... | 11/28/1989 |
| 4883098 | Projectile opener and lift for a projectile loom A picking mechanism for a loom including a projectile lift which points a projectile into a ready-to-pick position is made with a guide profile cross section open on the striking side. The projectile opener is provided with an additional guide element to ... | 11/28/1989 |
| 4880037 | Shuttle returner and improved body therefor An improved body member for a shuttle returner used in a projectile loom. Embedded within the relatively elastic body member is a relatively inelastic reinforcing element which takes up tensile force applied to the body member, thereby strengthening the b... | 11/14/1989 |
| 4848410 | Magnetic shuttle drive system for a multi-system weaving loom To provide for positive guidance of shuttles in a multi-system traveling shed weaving loom, in which the shuttles move continuous, endless loop path, having a straight portion (15a) and two essentially semi-circular curved return path portions (15b), the ... | 07/18/1989 |
| 4846232 | Gripper projectile The plastic projectile with an associated projectile opener has a projectile clip having arcuate parts. The projectile opener exerts forces both transversely and lengthwise of the picking direction on the arcuate parts of the clip for simultaneous opening... | 07/11/1989 |
| 4762153 | Weaving loom with magnetic shuttle A weaving loom with a magnetic shuttle comprised of an endless loop for guiding the shuttle to circulate and fly through the shed of warp and a magnetic means constructed as a structure which generates a magnetic force circulating along the endless loop f... | 08/09/1988 |
| 4757843 | Shuttle returner apparatus An improved shuttle returner for use in projectile looms. The shuttle returner comprises a relatively inelastic member for receiving the impact of an arriving shuttle, and a relatively elastic member coupled to the receiving member for absorbing the shutt... | 07/19/1988 |
| 4722370 | Method for conveying a weft thread by means of a flowing fluid through the weaving shed in a shuttleless weaving machine, as well as weaving machine adapted for applying said method The invention aims at equalizing weft time differences when launching successive threads and thereby obtaining a more uniform cloth. For that purpose the thread velocity in the initial phase of the weft is measured and on the basis thereof an additional p... | 02/02/1988 |
| 4669513 | Guide for a picking element in a weaving machine The guide for a picking element is provided with five plane guide surfaces which are peripherally disposed about the picking tunnel. These five guide surfaces are disposed on each of the single guide tooth or are distributed between a separately construct... | 06/02/1987 |
| 4667705 | Weft change system with a weaving machine The invention relates to a weft change system for a weaving machine, the known complicated switching and release mechanism for the movement of a selection quadrant with weft thread holding devices being simplified by the tension-loadable or compression-lo... | 05/26/1987 |
| 4653545 | Projectile guide for a weaving machine The projectile guide employs support teeth which have horizontally disposed support surfaces for slidably receiving and supporting a picked projectile thereon. In addition, alternately arranged guide teeth are provided to define a picking tunnel while als... | 03/31/1987 |
| 4653547 | Guide for parts of a weaving machine The guide is used for parts moved as if by a shear force of a weaving machine, particularly a projectile weaving machine. The guide has a body which is reciprocably mounted relative to at least one guideway. In addition, at least one guide element is asso... | 03/31/1987 |
| 4649965 | Picking arrangement for a weaving machine The arrangement is operative to pick at least one weft yarn for weaving machines and comprises a pair of weft yarn tensioning devices the second of which provides a loop of yarn whose length is equal to the length of weft yarn transferred by the main nozz... | 03/17/1987 |
| 4640315 | Projectile weaving machine The projectile weaving machine has a return conveyor disposed between a catcher and a picking mechanism. In addition, a cutting device is provided on the catcher side for severing the weft yarn end before the release of the weft yarn end from the projecti... | 02/03/1987 |
| 4640318 | Catcher for a weaving machine The weaving machine is provided with a catcher for a projectile which is disposed on a slide so as to be adjustable in the picking direction. In addition, the catcher is adjustably mounted horizontally and vertically transversely to the picking direction ... | 02/03/1987 |
| 4628968 | Guide for a weft-picking element The guide for the weft-picking element of a weaving machine is formed of alternating supports and hooks which complement one another in pairs to form a guide tooth. Each support is single armed while each adjacent hook widens towards the guide passage in ... | 12/16/1986 |
| 4625769 | Guide device for a weft picking element and a method of making same The guide device for the picking element of the weaving machine is formed with guide teeth each of which has a flexible zone which permits a positional adjustment of the guide and support member and guide hook relative to one another. During production of... | 12/02/1986 |
| 4593724 | Guide for a weft-picking projectile in a weaving machine The projectile guide comprises guide teeth whose exit aperture for the weft yarn is subject to the following conditions in relation to the projectile: where x denotes the horizontal distance between the vertical centerline of the projectile and the end of the ... | 06/10/1986 |
| 4586542 | Return device for the projectile of a gripper projectile weaving machine The return device for the projectiles of a gripper projectile weaving machine has an end position brake employing an abutment in the form of a piston which is guided in the cylinder and which experiences the light pressure of a restoring spring. The ratio... | 05/06/1986 |
| 4554954 | Loom for weaving flat fabric A loom wherein several gripper shuttles advance simultaneously along an endless path has a track with an arcuate section extending along an arc of 180 degrees ahead of the inlet to the shed. Shuttles are temporarily stored in a magazine ahead of the arcua... | 11/26/1985 |
| 4513792 | Weft yarn tensioning device The weft yarn tensioning device is employed in a weft changing operation for a weaving machine. The tensioning device has a rod which oscillates at the cadence of the weaving machine transversely of the weft yarn group. The rod deflects the yarns to retai... | 04/30/1985 |
| 4491158 | Gripper clamp projectile The gripper projectile has a yarn clamp with clamping jaws which, when opened to receive a weft yarn, bound a flow duct. The duct is disposed in communication with air exit orifices in the casing of the projectile so that air which is injected by a yarn s... | 01/01/1985 |
| 4488579 | Gripper projectile The gripper projectile has a spring-biased clamping member which is biased against a guide nozzle into which a weft yarn is blown in by a weft yarn supplying nozzle. The clamping member is provided with an aperture which enables a projectile opener to be ... | 12/18/1984 |
| 4475575 | Catching mechanism for a weaving machine The guide channel of the catching mechanism is provided with a recess into which the foremost projectile can be positioned at the upper end. The projectile is thus permitted to be moved into an upright position parallel to the direction of ejection. Furth... | 10/09/1984 |
| 4460021 | Catcher and a method of operating a gripper projectile catcher The catcher is operated so that prior to moving the projectile back into the ejection position, the brake block of the second braking station is disengaged while the first brake block remains in a braking position. Friction on the projectile and brake lin... | 07/17/1984 |
| 4458726 | Apparatus for controlling weft picking The weaving machine has a weft picking mechanism which is controlled so as to adjust the picking speed of the weft yarn relative to the operating speed of the weaving machine. The means for controlling the picking mechanism receives an error signal from a... | 07/10/1984 |
| 4415010 | Retractor apparatus for a weft-inserting projectile in a weaving machine The projectile weaving machine is provided with a retractor apparatus at the braking device in which an elastically yielding and damping body is disposed to absorb impact forces and damp vibrations. The elastically yielding and damping body is located bet... | 11/15/1983 |
| 4382455 | Multiple pick system for a weaving machine The multiple pick system uses a drive for each control element. Each drive includes a roller lever which is pivotally mounted and driven by a cam mounted on the continuously rotating shaft of the machine. A locking member is movable into the path of the r... | 05/10/1983 |
| 4338973 | Catch mechanism for a weaving machine The catch mechanism employs a straight line guideway for moving an ejector reciprocally in a straight line path. The ejector has a foot piece for engaging only the foremost gripper projectile of a series of projectiles in a channel so as to positively eje... | 07/13/1982 |
| 4330018 | Shuttle return conveyor mechanism The conveyor belt for the shuttle return conveyor mechanism is formed with a support on the upper surface for laterally supporting a series of shuttles thereon and drivers which act as abutments for moving the shuttles from the catching mechanism to the p... | 05/18/1982 |
| 4271872 | Drive mechanism for a sub-mechanism of a weaving machine The drive mechanism for a reciprocating sub-mechanism on a weaving machine, e.g. for a cam for raising a projectile into the picking line, comprises a dead-center type crank drive. The drive is pivoted to and fro continually through 180°. The connecting ... | 06/09/1981 |
| 4261394 | Projectile feeder for a gripper projectile weaving machine The pivotable projectile feeder has a trough at one end which is shaped to the shape of the gripper shuttle. The trough has an aperture on a side remote from the transfer position to permit the weft yarn to pass freely therethrough when the feeder is retu... | 04/14/1981 |
